commiting in case the kivy trial fails

freechat-client/readme.md

@@ -3,3 +3,7 @@
 This will be where we keep the code for the web-based-client.
 This client comms with our server code base found under `/server/` in this repository.
 
+## Client Config Description
+
+For unix based systems configuration will be found at `$HOME/.config/freechat-client/config.json`.
+There a few top levle items that I will describe here.

freechat-client/share/kivy-examples/3Drendering/main.py

@@ -0,0 +1,76 @@
+'''
+3D Rotating Monkey Head
+========================
+
+This example demonstrates using OpenGL to display a rotating monkey head. This
+includes loading a Blender OBJ file, shaders written in OpenGL's Shading
+Language (GLSL), and using scheduled callbacks.
+
+The monkey.obj file is an OBJ file output from the Blender free 3D creation
+software. The file is text, listing vertices and faces and is loaded
+using a class in the file objloader.py. The file simple.glsl is
+a simple vertex and fragment shader written in GLSL.
+'''
+
+from kivy.app import App
+from kivy.clock import Clock
+from kivy.core.window import Window
+from kivy.uix.widget import Widget
+from kivy.resources import resource_find
+from kivy.graphics.transformation import Matrix
+from kivy.graphics.opengl import *
+from kivy.graphics import *
+from objloader import ObjFile
+
+
+class Renderer(Widget):
+    def __init__(self, **kwargs):
+        self.canvas = RenderContext(compute_normal_mat=True)
+        self.canvas.shader.source = resource_find('simple.glsl')
+        self.scene = ObjFile(resource_find("monkey.obj"))
+        super(Renderer, self).__init__(**kwargs)
+        with self.canvas:
+            self.cb = Callback(self.setup_gl_context)
+            PushMatrix()
+            self.setup_scene()
+            PopMatrix()
+            self.cb = Callback(self.reset_gl_context)
+        Clock.schedule_interval(self.update_glsl, 1 / 60.)
+
+    def setup_gl_context(self, *args):
+        glEnable(GL_DEPTH_TEST)
+
+    def reset_gl_context(self, *args):
+        glDisable(GL_DEPTH_TEST)
+
+    def update_glsl(self, delta):
+        asp = self.width / float(self.height)
+        proj = Matrix().view_clip(-asp, asp, -1, 1, 1, 100, 1)
+        self.canvas['projection_mat'] = proj
+        self.canvas['diffuse_light'] = (1.0, 1.0, 0.8)
+        self.canvas['ambient_light'] = (0.1, 0.1, 0.1)
+        self.rot.angle += delta * 100
+
+    def setup_scene(self):
+        Color(1, 1, 1, 1)
+        PushMatrix()
+        Translate(0, 0, -3)
+        self.rot = Rotate(1, 0, 1, 0)
+        m = list(self.scene.objects.values())[0]
+        UpdateNormalMatrix()
+        self.mesh = Mesh(
+            vertices=m.vertices,
+            indices=m.indices,
+            fmt=m.vertex_format,
+            mode='triangles',
+        )
+        PopMatrix()
+
+
+class RendererApp(App):
+    def build(self):
+        return Renderer()
+
+
+if __name__ == "__main__":
+    RendererApp().run()

freechat-client/share/kivy-examples/3Drendering/objloader.py

@@ -0,0 +1,147 @@
+class MeshData(object):
+    def __init__(self, **kwargs):
+        self.name = kwargs.get("name")
+        self.vertex_format = [
+            (b'v_pos', 3, 'float'),
+            (b'v_normal', 3, 'float'),
+            (b'v_tc0', 2, 'float')]
+        self.vertices = []
+        self.indices = []
+
+    def calculate_normals(self):
+        for i in range(len(self.indices) / (3)):
+            fi = i * 3
+            v1i = self.indices[fi]
+            v2i = self.indices[fi + 1]
+            v3i = self.indices[fi + 2]
+
+            vs = self.vertices
+            p1 = [vs[v1i + c] for c in range(3)]
+            p2 = [vs[v2i + c] for c in range(3)]
+            p3 = [vs[v3i + c] for c in range(3)]
+
+            u, v = [0, 0, 0], [0, 0, 0]
+            for j in range(3):
+                v[j] = p2[j] - p1[j]
+                u[j] = p3[j] - p1[j]
+
+            n = [0, 0, 0]
+            n[0] = u[1] * v[2] - u[2] * v[1]
+            n[1] = u[2] * v[0] - u[0] * v[2]
+            n[2] = u[0] * v[1] - u[1] * v[0]
+
+            for k in range(3):
+                self.vertices[v1i + 3 + k] = n[k]
+                self.vertices[v2i + 3 + k] = n[k]
+                self.vertices[v3i + 3 + k] = n[k]
+
+
+class ObjFile:
+    def finish_object(self):
+        if self._current_object is None:
+            return
+
+        mesh = MeshData()
+        idx = 0
+        for f in self.faces:
+            verts = f[0]
+            norms = f[1]
+            tcs = f[2]
+            for i in range(3):
+                # get normal components
+                n = (0.0, 0.0, 0.0)
+                if norms[i] != -1:
+                    n = self.normals[norms[i] - 1]
+
+                # get texture coordinate components
+                t = (0.0, 0.0)
+                if tcs[i] != -1:
+                    t = self.texcoords[tcs[i] - 1]
+
+                # get vertex components
+                v = self.vertices[verts[i] - 1]
+
+                data = [v[0], v[1], v[2], n[0], n[1], n[2], t[0], t[1]]
+                mesh.vertices.extend(data)
+
+            tri = [idx, idx + 1, idx + 2]
+            mesh.indices.extend(tri)
+            idx += 3
+
+        self.objects[self._current_object] = mesh
+        # mesh.calculate_normals()
+        self.faces = []
+
+    def __init__(self, filename, swapyz=False):
+        """Loads a Wavefront OBJ file. """
+        self.objects = {}
+        self.vertices = []
+        self.normals = []
+        self.texcoords = []
+        self.faces = []
+
+        self._current_object = None
+
+        material = None
+        for line in open(filename, "r"):
+            if line.startswith('#'):
+                continue
+            if line.startswith('s'):
+                continue
+            values = line.split()
+            if not values:
+                continue
+            if values[0] == 'o':
+                self.finish_object()
+                self._current_object = values[1]
+            # elif values[0] == 'mtllib':
+            #    self.mtl = MTL(values[1])
+            # elif values[0] in ('usemtl', 'usemat'):
+            #    material = values[1]
+            if values[0] == 'v':
+                v = list(map(float, values[1:4]))
+                if swapyz:
+                    v = v[0], v[2], v[1]
+                self.vertices.append(v)
+            elif values[0] == 'vn':
+                v = list(map(float, values[1:4]))
+                if swapyz:
+                    v = v[0], v[2], v[1]
+                self.normals.append(v)
+            elif values[0] == 'vt':
+                self.texcoords.append(map(float, values[1:3]))
+            elif values[0] == 'f':
+                face = []
+                texcoords = []
+                norms = []
+                for v in values[1:]:
+                    w = v.split('/')
+                    face.append(int(w[0]))
+                    if len(w) >= 2 and len(w[1]) > 0:
+                        texcoords.append(int(w[1]))
+                    else:
+                        texcoords.append(-1)
+                    if len(w) >= 3 and len(w[2]) > 0:
+                        norms.append(int(w[2]))
+                    else:
+                        norms.append(-1)
+                self.faces.append((face, norms, texcoords, material))
+        self.finish_object()
+
+
+def MTL(filename):
+    contents = {}
+    mtl = None
+    return
+    for line in open(filename, "r"):
+        if line.startswith('#'):
+            continue
+        values = line.split()
+        if not values:
+            continue
+        if values[0] == 'newmtl':
+            mtl = contents[values[1]] = {}
+        elif mtl is None:
+            raise ValueError("mtl file doesn't start with newmtl stmt")
+        mtl[values[0]] = values[1:]
+    return contents

freechat-client/share/kivy-examples/3Drendering/simple.glsl

@@ -0,0 +1,47 @@
+/* simple.glsl
+
+simple diffuse lighting based on laberts cosine law; see e.g.:
+    http://en.wikipedia.org/wiki/Lambertian_reflectance
+    http://en.wikipedia.org/wiki/Lambert%27s_cosine_law
+*/
+---VERTEX SHADER-------------------------------------------------------
+#ifdef GL_ES
+    precision highp float;
+#endif
+
+attribute vec3  v_pos;
+attribute vec3  v_normal;
+
+uniform mat4 modelview_mat;
+uniform mat4 projection_mat;
+
+varying vec4 normal_vec;
+varying vec4 vertex_pos;
+
+void main (void) {
+    //compute vertex position in eye_space and normalize normal vector
+    vec4 pos = modelview_mat * vec4(v_pos,1.0);
+    vertex_pos = pos;
+    normal_vec = vec4(v_normal,0.0);
+    gl_Position = projection_mat * pos;
+}
+
+
+---FRAGMENT SHADER-----------------------------------------------------
+#ifdef GL_ES
+    precision highp float;
+#endif
+
+varying vec4 normal_vec;
+varying vec4 vertex_pos;
+
+uniform mat4 normal_mat;
+
+void main (void){
+    //correct normal, and compute light vector (assume light at the eye)
+    vec4 v_normal = normalize( normal_mat * normal_vec ) ;
+    vec4 v_light = normalize( vec4(0,0,0,1) - vertex_pos );
+    //reflectance based on lamberts law of cosine
+    float theta = clamp(dot(v_normal, v_light), 0.0, 1.0);
+    gl_FragColor = vec4(theta, theta, theta, 1.0);
+}

freechat-client/share/kivy-examples/RST_Editor/editor.kv

@@ -0,0 +1,72 @@
+#:kivy 1.1.0
+
+Root:
+    text_input: text_input
+
+    BoxLayout:
+        orientation: 'vertical'
+        BoxLayout:
+            size_hint_y: None
+            height: 30
+            Button:
+                text: 'Load'
+                on_release: root.show_load()
+            Button:
+                text: 'Save'
+                on_release: root.show_save()
+
+        BoxLayout:
+            TextInput:
+                id: text_input
+                text: ''
+
+            RstDocument:
+                text: text_input.text
+                show_errors: True
+
+<LoadDialog>:
+    BoxLayout:
+        size: root.size
+        pos: root.pos
+        orientation: "vertical"
+        FileChooserListView:
+            id: filechooser
+
+        BoxLayout:
+            size_hint_y: None
+            height: 30
+            Button:
+                text: "Cancel"
+                on_release: root.cancel()
+
+            Button:
+                text: "Load"
+                on_release: root.load(filechooser.path, filechooser.selection)
+
+<SaveDialog>:
+    text_input: text_input
+    BoxLayout:
+        size: root.size
+        pos: root.pos
+        orientation: "vertical"
+        FileChooserListView:
+            id: filechooser
+            on_selection: text_input.text = self.selection and self.selection[0] or ''
+
+        TextInput:
+            id: text_input
+            size_hint_y: None
+            height: 30
+            multiline: False
+
+        BoxLayout:
+            size_hint_y: None
+            height: 30
+            Button:
+                text: "Cancel"
+                on_release: root.cancel()
+
+            Button:
+                text: "Save"
+                on_release: root.save(filechooser.path, text_input.text)
+

freechat-client/share/kivy-examples/RST_Editor/main.py

@@ -0,0 +1,64 @@
+from kivy.app import App
+from kivy.uix.floatlayout import FloatLayout
+from kivy.factory import Factory
+from kivy.properties import ObjectProperty
+from kivy.uix.popup import Popup
+
+import os
+
+
+class LoadDialog(FloatLayout):
+    load = ObjectProperty(None)
+    cancel = ObjectProperty(None)
+
+
+class SaveDialog(FloatLayout):
+    save = ObjectProperty(None)
+    text_input = ObjectProperty(None)
+    cancel = ObjectProperty(None)
+
+
+class Root(FloatLayout):
+    loadfile = ObjectProperty(None)
+    savefile = ObjectProperty(None)
+    text_input = ObjectProperty(None)
+
+    def dismiss_popup(self):
+        self._popup.dismiss()
+
+    def show_load(self):
+        content = LoadDialog(load=self.load, cancel=self.dismiss_popup)
+        self._popup = Popup(title="Load file", content=content,
+                            size_hint=(0.9, 0.9))
+        self._popup.open()
+
+    def show_save(self):
+        content = SaveDialog(save=self.save, cancel=self.dismiss_popup)
+        self._popup = Popup(title="Save file", content=content,
+                            size_hint=(0.9, 0.9))
+        self._popup.open()
+
+    def load(self, path, filename):
+        with open(os.path.join(path, filename[0])) as stream:
+            self.text_input.text = stream.read()
+
+        self.dismiss_popup()
+
+    def save(self, path, filename):
+        with open(os.path.join(path, filename), 'w') as stream:
+            stream.write(self.text_input.text)
+
+        self.dismiss_popup()
+
+
+class Editor(App):
+    pass
+
+
+Factory.register('Root', cls=Root)
+Factory.register('LoadDialog', cls=LoadDialog)
+Factory.register('SaveDialog', cls=SaveDialog)
+
+
+if __name__ == '__main__':
+    Editor().run()

freechat-client/share/kivy-examples/android/compass/android.txt

@@ -0,0 +1,3 @@
+title=Compass
+author=Nik Klever
+orientation=portrait

freechat-client/share/kivy-examples/android/compass/compass.kv

@@ -0,0 +1,25 @@
+#:kivy 1.7.0
+
+FloatLayout:
+
+    canvas:
+        Color:
+            rgb: .98, .98, .98
+        Rectangle:
+            size: self.size
+
+    Image:
+        source: 'rose.png'
+
+    Image:
+        source: 'needle.png'
+
+        canvas.before:
+            PushMatrix
+            Rotate:
+                angle: app.needle_angle
+                axis: 0, 0, 1
+                origin: self.center
+
+        canvas.after:
+            PopMatrix

freechat-client/share/kivy-examples/android/compass/main.py

@@ -0,0 +1,77 @@
+'''
+Compass example
+===============
+
+This example is a demonstration of Hardware class usage.
+But it has severals drawbacks, like using only the magnetic sensor, and
+extrapolating values to get the orientation. The compass is absolutely not
+accurate.
+
+The right way would be to get the accelerometer + magnetic, and computer
+everything according to the phone orientation. This is not the purpose of this
+example right now.
+
+You can compile it with::
+
+    ./build.py --package org.test.compass --name compass \
+        --private ~/code/kivy/examples/android/compass \
+        --window --version 1.0 debug installd
+'''
+
+
+import kivy
+kivy.require('1.7.0')
+
+from jnius import autoclass
+from math import floor
+from kivy.app import App
+from kivy.properties import NumericProperty
+from kivy.clock import Clock
+from kivy.vector import Vector
+from kivy.animation import Animation
+
+Hardware = autoclass('org.renpy.android.Hardware')
+
+
+class CompassApp(App):
+
+    needle_angle = NumericProperty(0)
+
+    def build(self):
+        self._anim = None
+        Hardware.magneticFieldSensorEnable(True)
+        Clock.schedule_interval(self.update_compass, 1 / 10.)
+
+    def update_compass(self, *args):
+        # read the magnetic sensor from the Hardware class
+        (x, y, z) = Hardware.magneticFieldSensorReading()
+
+        # calculate the angle
+        needle_angle = Vector(x, y).angle((0, 1)) + 90.
+
+        # fix animation transition around the unit circle
+        if (self.needle_angle % 360) - needle_angle > 180:
+            needle_angle += 360
+        elif (self.needle_angle % 360) - needle_angle < -180:
+            needle_angle -= 360
+        # add the number of revolutions to the result
+        needle_angle += 360 * floor(self.needle_angle / 360.)
+
+        # animate the needle
+        if self._anim:
+            self._anim.stop(self)
+        self._anim = Animation(needle_angle=needle_angle, d=.2, t='out_quad')
+        self._anim.start(self)
+
+    def on_pause(self):
+        # when you are going on pause, don't forget to stop the sensor
+        Hardware.magneticFieldSensorEnable(False)
+        return True
+
+    def on_resume(self):
+        # reactivate the sensor when you are back to the app
+        Hardware.magneticFieldSensorEnable(True)
+
+
+if __name__ == '__main__':
+    CompassApp().run()

freechat-client/share/kivy-examples/android/takepicture/android.txt

@@ -0,0 +1,3 @@
+title=TakePicture
+author=Mathieu Virbel
+orientation=portrait

freechat-client/share/kivy-examples/android/takepicture/main.py

@@ -0,0 +1,80 @@
+'''
+Take picture
+============
+
+.. author:: Mathieu Virbel <mat@kivy.org>
+
+Little example to demonstrate how to start an Intent, and get the result.
+When you use the Android.startActivityForResult(), the result will be
+dispatched into onActivityResult. You can catch the event with the
+android.activity API from python-for-android project.
+
+If you want to compile it, don't forget to add the CAMERA permission::
+
+    ./build.py --name 'TakePicture' --package org.test.takepicture \
+            --permission CAMERA --version 1 \
+            --private ~/code/kivy/examples/android/takepicture \
+            debug installd
+
+'''
+
+__version__ = '0.1'
+
+from kivy.app import App
+from os.path import exists
+from jnius import autoclass, cast
+from android import activity, mActivity
+from functools import partial
+from kivy.clock import Clock
+from kivy.uix.scatter import Scatter
+from kivy.properties import StringProperty
+
+from PIL import Image
+
+Intent = autoclass('android.content.Intent')
+MediaStore = autoclass('android.provider.MediaStore')
+Uri = autoclass('android.net.Uri')
+Environment = autoclass('android.os.Environment')
+
+
+class Picture(Scatter):
+    source = StringProperty(None)
+
+
+class TakePictureApp(App):
+    def build(self):
+        self.index = 0
+        activity.bind(on_activity_result=self.on_activity_result)
+
+    def get_filename(self):
+        while True:
+            self.index += 1
+            fn = (Environment.getExternalStorageDirectory().getPath() +
+                  '/takepicture{}.jpg'.format(self.index))
+            if not exists(fn):
+                return fn
+
+    def take_picture(self):
+        intent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
+        self.last_fn = self.get_filename()
+        self.uri = Uri.parse('file://' + self.last_fn)
+        self.uri = cast('android.os.Parcelable', self.uri)
+        intent.putExtra(MediaStore.EXTRA_OUTPUT, self.uri)
+        mActivity.startActivityForResult(intent, 0x123)
+
+    def on_activity_result(self, requestCode, resultCode, intent):
+        if requestCode == 0x123:
+            Clock.schedule_once(partial(self.add_picture, self.last_fn), 0)
+
+    def add_picture(self, fn, *args):
+        im = Image.open(fn)
+        width, height = im.size
+        im.thumbnail((width / 4, height / 4), Image.ANTIALIAS)
+        im.save(fn, quality=95)
+        self.root.add_widget(Picture(source=fn, center=self.root.center))
+
+    def on_pause(self):
+        return True
+
+
+TakePictureApp().run()

freechat-client/share/kivy-examples/android/takepicture/takepicture.kv

@@ -0,0 +1,40 @@
+#:kivy 1.0
+#:import win kivy.core.window
+
+Widget:
+    canvas:
+        Color:
+            rgb: .85, .87, .88
+        Rectangle:
+            size: self.size
+
+    Button:
+        text: 'Take a picture'
+        width: self.texture_size[0] + dp(40)
+        height: '48dp'
+        on_release: app.take_picture()
+
+<Picture>:
+    on_size: self.center = win.Window.center
+    size: image.size
+    size_hint: None, None
+
+    Image:
+        id: image
+        source: root.source
+
+        # create initial image to be 400 pixels width
+        size: 400, 400
+
+        # add shadow background
+        canvas.before:
+            Color:
+                rgba: 1, 1, 1, 1
+            BorderImage:
+                source: 'shadow32.png'
+                border: (36, 36, 36, 36)
+                size:(self.width + 72, self.height + 72)
+                pos: (-36, -36)
+
+
+

freechat-client/share/kivy-examples/animation/animate.py

@@ -0,0 +1,42 @@
+'''
+Widget animation
+================
+
+This example demonstrates creating and applying a multi-part animation to
+a button widget. You should see a button labelled 'plop' that will move with
+an animation when clicked.
+'''
+
+import kivy
+kivy.require('1.0.7')
+
+from kivy.animation import Animation
+from kivy.app import App
+from kivy.uix.button import Button
+
+
+class TestApp(App):
+
+    def animate(self, instance):
+        # create an animation object. This object could be stored
+        # and reused each call or reused across different widgets.
+        # += is a sequential step, while &= is in parallel
+        animation = Animation(pos=(100, 100), t='out_bounce')
+        animation += Animation(pos=(200, 100), t='out_bounce')
+        animation &= Animation(size=(500, 500))
+        animation += Animation(size=(100, 50))
+
+        # apply the animation on the button, passed in the "instance" argument
+        # Notice that default 'click' animation (changing the button
+        # color while the mouse is down) is unchanged.
+        animation.start(instance)
+
+    def build(self):
+        # create a button, and  attach animate() method as a on_press handler
+        button = Button(size_hint=(None, None), text='plop',
+                        on_press=self.animate)
+        return button
+
+
+if __name__ == '__main__':
+    TestApp().run()

freechat-client/share/kivy-examples/application/app_suite.py

@@ -0,0 +1,152 @@
+'''
+Suite of Application Builders
+=============================
+
+This explores different methods of starting an application. If you run
+this without a command line parameter, you should see a menu in your terminal.
+You can also run this with a 'r' parameter to pick a random method.
+There are lots of logging options to make this easier to debug: the execution
+order may not be obvious. Each time you run the command, only one kivy
+application is created.
+
+This uses the file testkvfile.kv and the file app_suite_data/testkvdir.kv.
+
+'''
+
+from __future__ import print_function
+import sys
+import re
+from random import choice
+
+import kivy
+kivy.require('1.8.0')  # 1.8 is when kv_directory became part of app.
+from kivy.app import App
+from kivy.uix.button import Button
+from kivy.lang import Builder
+
+from kivy.uix.floatlayout import FloatLayout
+# Note that importing FloatLayout causes Kivy to execute, including
+# starting up the Logger and some other messages.
+print("** In main program, done with imports")
+
+
+class TestBuildApp(App):
+    """ Use build() function to return a widget. """
+    def build(self):
+        """   Build called by kivy when an App is started.
+              Called after trying to load a .kv file.
+              Returns a new Button as a root widget.
+              """
+        print("** inside build()")
+        return Button(text='hello from TestBuildApp')
+
+
+class TestKVFileApp(App):
+    """
+    Empty class, but name used to find .kv file. The filename is the lowercase
+    version of the class, i.e. 'testkvfileapp.kv'. If not found, it strips
+    off the final 'app', i.e. 'testkvfile.kv'. If not file is found, and no
+    other method sets the self.root, the program will run with an empty screen.
+    """
+    pass
+
+
+class TestKVDirApp(App):
+    """
+    Empty class except for setting class variable kv_directory.
+    This directory sets the directory in which to search for the .kv file.
+    The name of the kv file is still governed by the class name and the .kv
+    file should still have one root widget.
+    """
+    kv_directory = 'app_suite_data'
+
+
+class TestKVStringApp(App):
+    """
+    Use a build() function and use the kivy.lang.Builder function to parse up a
+    Kivy language string.
+    """
+    def build(self):
+        """   Called by kivy run().  """
+        print("** inside build()")
+        widget = Builder.load_string(
+            "Button:\n  text: 'hello from TestKVStringApp'")
+        print("** widget built")
+        return widget
+
+
+class TestPrebuiltApp(App):
+    """ Use the Builder to create a top level widget at the beginning
+    of the Python program, then use a dummy class for that widget.
+    This costs a bit more in start-up time. """
+    kv = "<Prebuilt>\n  Button:\n    text:'hello from TestPrebuiltApp'"
+    Builder.load_string(kv)
+    print("** in TestPrebuiltApp, class initialization built <Prebuilt>")
+
+    class Prebuilt(FloatLayout):
+        """ Empty class to cause setting root to <Prebuilt> tag and
+        set inheritence """
+        pass
+
+    def build(self):
+        """ called, returns instance matching tag . """
+        return self.Prebuilt()
+
+
+def print_class(class_name):
+    """ Read this file and print the section with the class name specified.)"""
+    filename = sys.argv[0]
+    with open(filename) as f:
+        data = f.read()
+        regex = "^(class " + class_name + "\\b.*?)^\\S"
+        match = re.search(regex, data, flags=re.MULTILINE | re.DOTALL)
+        if match:
+            print(match.group(1))
+
+
+# the __name__ idiom executes when run from command line but not from import.
+if __name__ == '__main__':
+    dash = "-" * 40
+
+    arg = sys.argv[1][0].lower() if len(sys.argv) > 1 else "h"
+    print(dash)
+
+    if arg == 'r':
+        arg = choice('bfds')
+
+    if arg == 'b':
+        print_class("TestBuildApp")
+        TestBuildApp().run()
+    elif arg == 'f':
+        print_class("TestKVFileApp")
+        TestKVFileApp().run()
+    elif arg == 'd':
+        print_class("TestKVDirApp")
+        TestKVDirApp().run()
+    elif arg == 's':
+        print_class("TestKVStringApp")
+        TestKVStringApp().run()
+    elif arg == 'p':
+        print_class("TestPrebuiltApp")
+        TestPrebuiltApp().run()
+    else:   # help
+        print("""
+This demo runs different application windows based on a command line argument.
+
+Try using one of these:
+   b - Use build() method to return a widget
+   d - Use a kv file from a different directory
+   f - Use a kv file with the widget object
+   p - Use prebuilt widget inside a layout
+   s - Use a kivy language string to create the widget
+   r - pick one of the options at random.
+
+   h - show this help message.
+
+   After closing the application window, this program will exit.
+   While the run() method does return, kivy cannot run another
+   application window after one has been closed.
+ """)
+
+    print(dash)
+    print("This program is gratified to be of use.")

freechat-client/share/kivy-examples/application/app_suite_data/testkvdir.kv

@@ -0,0 +1,4 @@
+#:kivy 1.0
+
+Button:
+    text: 'Hello from app_suite_data/testkvdir.kv'

freechat-client/share/kivy-examples/application/app_with_build.py

@@ -0,0 +1,24 @@
+'''
+Application example using build() + return
+==========================================
+
+An application can be built if you return a widget on build(), or if you set
+self.root.
+'''
+
+import kivy
+kivy.require('1.0.7')
+
+from kivy.app import App
+from kivy.uix.button import Button
+
+
+class TestApp(App):
+
+    def build(self):
+        # return a Button() as a root widget
+        return Button(text='hello world')
+
+
+if __name__ == '__main__':
+    TestApp().run()

freechat-client/share/kivy-examples/application/app_with_config.py

@@ -0,0 +1,49 @@
+from kivy.app import App
+from kivy.lang import Builder
+from kivy.properties import ConfigParserProperty
+
+KV = '''
+FloatLayout:
+    BoxLayout:
+        size_hint: .5, .5
+        pos_hint: {'center': (.5, .5)}
+
+        orientation: 'vertical'
+
+        TextInput:
+            text: app.text
+            on_text: app.text = self.text
+
+        Slider:
+            min: 0
+            max: 100
+            value: app.number
+            on_value: app.number = self.value
+'''
+
+
+class ConfigApp(App):
+    number = ConfigParserProperty(
+        0, 'general', 'number',
+        'app', val_type=float
+    )
+    text = ConfigParserProperty(
+        '', 'general', 'text',
+        'app', val_type=str
+    )
+
+    def build_config(self, config):
+        config.setdefaults(
+            'general',
+            {
+                'number': 0,
+                'text': 'test'
+            }
+        )
+
+    def build(self):
+        return Builder.load_string(KV)
+
+
+if __name__ == '__main__':
+    ConfigApp().run()

freechat-client/share/kivy-examples/application/app_with_kv.py

@@ -0,0 +1,25 @@
+'''
+Application built from a  .kv file
+==================================
+
+This shows how to implicitly use a .kv file for your application. You
+should see a full screen button labelled "Hello from test.kv".
+
+After Kivy instantiates a subclass of App, it implicitly searches for a .kv
+file. The file test.kv is selected because the name of the subclass of App is
+TestApp, which implies that kivy should try to load "test.kv". That file
+contains a root Widget.
+'''
+
+import kivy
+kivy.require('1.0.7')
+
+from kivy.app import App
+
+
+class TestApp(App):
+    pass
+
+
+if __name__ == '__main__':
+    TestApp().run()

freechat-client/share/kivy-examples/application/app_with_kv_in_template1.py

@@ -0,0 +1,27 @@
+'''
+Application from a .kv in a Template Directory
+==============================================
+
+This example shows how you can change the directory for the .kv file. You
+should see "Hello from template1/test.ky" as a button.
+
+As kivy instantiates the TestApp subclass of App, the variable kv_directory
+is set. Kivy then implicitly searches for a .kv file matching the name
+of the subclass in that directory, finding the file template1/test.kv. That
+file contains the root widget.
+
+
+'''
+
+import kivy
+kivy.require('1.0.7')
+
+from kivy.app import App
+
+
+class TestApp(App):
+    kv_directory = 'template1'
+
+
+if __name__ == '__main__':
+    TestApp().run()

freechat-client/share/kivy-examples/application/template1/test.kv

@@ -0,0 +1,4 @@
+#:kivy 1.0
+
+Button:
+    text: 'Hello from template1/test.kv'

freechat-client/share/kivy-examples/application/test.kv

@@ -0,0 +1,4 @@
+#:kivy 1.0
+
+Button:
+    text: 'Hello from test.kv'

freechat-client/share/kivy-examples/application/testkvfile.kv

@@ -0,0 +1,4 @@
+#:kivy 1.0
+
+Button:
+    text: 'Hello from testkvfile.kv'

freechat-client/share/kivy-examples/audio/audio.kv

@@ -0,0 +1,59 @@
+#:kivy 1.0
+#:import kivy kivy
+
+<AudioBackground>:
+    orientation: 'vertical'
+    canvas:
+        Color:
+            rgb: 1, 1, 1
+        Rectangle:
+            source: 'data/images/background.jpg'
+            size: self.size
+
+    BoxLayout:
+        padding: 10
+        spacing: 10
+        size_hint: 1, None
+        pos_hint: {'top': 1}
+        height: 44
+        Image:
+            size_hint: None, None
+            size: 24, 24
+            source: 'data/logo/kivy-icon-24.png'
+        Label:
+            height: 24
+            text_size: self.size
+            color: (1, 1, 1, .8)
+            text: 'Kivy %s - Audio sample' % kivy.__version__
+            valign: 'middle'
+
+    Label:
+        text: 'Audio example'
+        font_size: 32
+        size_hint_y: None
+
+    BoxLayout:
+        Slider:
+            min: 0.0
+            max: 1.0
+            value: 1.0
+            on_value: app.set_volume(self.value)
+            orientation: "vertical"
+            size_hint_x: None
+            width: "48dp"
+
+        StackLayout:
+            id: sl
+
+    Button:
+        text: 'Stop and release all audio'
+        size_hint_y: None
+        height: '50sp'
+        on_press: app.release_audio()
+
+<AudioButton>:
+    size_hint: None,0.333
+    width: self.height
+    text_size: self.size
+    font_size: '12sp'
+    valign: 'middle'

freechat-client/share/kivy-examples/audio/main.py

@@ -0,0 +1,81 @@
+'''
+Audio example
+=============
+
+This example plays sounds of different formats. You should see a grid of
+buttons labelled with filenames. Clicking on the buttons will play, or
+restart, each sound. Not all sound formats will play on all platforms.
+
+All the sounds are from the http://woolyss.com/chipmusic-samples.php
+"THE FREESOUND PROJECT", Under Creative Commons Sampling Plus 1.0 License.
+
+'''
+
+import kivy
+kivy.require('1.0.8')
+
+from kivy.app import App
+from kivy.uix.button import Button
+from kivy.uix.boxlayout import BoxLayout
+from kivy.core.audio import SoundLoader
+from kivy.properties import StringProperty, ObjectProperty, NumericProperty
+from glob import glob
+from os.path import dirname, join, basename
+
+
+class AudioButton(Button):
+
+    filename = StringProperty(None)
+    sound = ObjectProperty(None, allownone=True)
+    volume = NumericProperty(1.0)
+
+    def on_press(self):
+        if self.sound is None:
+            self.sound = SoundLoader.load(self.filename)
+        # stop the sound if it's currently playing
+        if self.sound.status != 'stop':
+            self.sound.stop()
+        self.sound.volume = self.volume
+        self.sound.play()
+
+    def release_audio(self):
+        if self.sound:
+            self.sound.stop()
+            self.sound.unload()
+            self.sound = None
+
+    def set_volume(self, volume):
+        self.volume = volume
+        if self.sound:
+            self.sound.volume = volume
+
+
+class AudioBackground(BoxLayout):
+    pass
+
+
+class AudioApp(App):
+
+    def build(self):
+
+        root = AudioBackground(spacing=5)
+        for fn in glob(join(dirname(__file__), '*.wav')):
+            btn = AudioButton(
+                text=basename(fn[:-4]).replace('_', ' '), filename=fn,
+                size_hint=(None, None), halign='center',
+                size=(128, 128), text_size=(118, None))
+            root.ids.sl.add_widget(btn)
+
+        return root
+
+    def release_audio(self):
+        for audiobutton in self.root.ids.sl.children:
+            audiobutton.release_audio()
+
+    def set_volume(self, value):
+        for audiobutton in self.root.ids.sl.children:
+            audiobutton.set_volume(value)
+
+
+if __name__ == '__main__':
+    AudioApp().run()

freechat-client/share/kivy-examples/audio/pitch.py

@@ -0,0 +1,42 @@
+# encoding: utf8
+
+from kivy.app import App
+from kivy.core.audio import SoundLoader
+from kivy.uix.boxlayout import BoxLayout
+from kivy.uix.button import Button
+
+from sys import version_info
+
+
+NOTES = (
+    ('Do', 1),
+    ('Ré', 9 / 8.),
+    ('Mi', 5 / 4.),
+    ('Fa', 4 / 3.),
+    ('Sol', 3 / 2.),
+    ('La', 5 / 3.),
+    ('Si', 15 / 8.),
+)
+
+
+class Test(App):
+    def build(self):
+        self.sound = SoundLoader.load(
+            '/usr/lib64/python{}.{}/test/audiodata/pluck-pcm32.wav'
+            .format(*version_info[0:2])
+        )
+        root = BoxLayout()
+        for octave in range(-2, 3):
+            for note, pitch in NOTES:
+                button = Button(text=note)
+                button.pitch = pitch * 2 ** octave
+                button.bind(on_release=self.play_note)
+                root.add_widget(button)
+        return root
+
+    def play_note(self, button):
+        self.sound.pitch = button.pitch
+        self.sound.play()
+
+
+Test().run()

freechat-client/share/kivy-examples/camera/main.py

@@ -0,0 +1,59 @@
+'''
+Camera Example
+==============
+
+This example demonstrates a simple use of the camera. It shows a window with
+a buttoned labelled 'play' to turn the camera on and off. Note that
+not finding a camera, perhaps because gstreamer is not installed, will
+throw an exception during the kv language processing.
+
+'''
+
+# Uncomment these lines to see all the messages
+# from kivy.logger import Logger
+# import logging
+# Logger.setLevel(logging.TRACE)
+
+from kivy.app import App
+from kivy.lang import Builder
+from kivy.uix.boxlayout import BoxLayout
+import time
+Builder.load_string('''
+<CameraClick>:
+    orientation: 'vertical'
+    Camera:
+        id: camera
+        resolution: (640, 480)
+        play: False
+    ToggleButton:
+        text: 'Play'
+        on_press: camera.play = not camera.play
+        size_hint_y: None
+        height: '48dp'
+    Button:
+        text: 'Capture'
+        size_hint_y: None
+        height: '48dp'
+        on_press: root.capture()
+''')
+
+
+class CameraClick(BoxLayout):
+    def capture(self):
+        '''
+        Function to capture the images and give them the names
+        according to their captured time and date.
+        '''
+        camera = self.ids['camera']
+        timestr = time.strftime("%Y%m%d_%H%M%S")
+        camera.export_to_png("IMG_{}.png".format(timestr))
+        print("Captured")
+
+
+class TestCamera(App):
+
+    def build(self):
+        return CameraClick()
+
+
+TestCamera().run()

freechat-client/share/kivy-examples/canvas/bezier.py

@@ -0,0 +1,105 @@
+'''
+Bezier Example
+==============
+
+This example shows a closed Bezier curve computed from a polygon. You
+should see a purple polygon, a red bezier curve computed from the polygon,
+and two sliders. You can drag points on the polygon to recompute the curve.
+The two sliders control the dash length of the dashed lines making up the two
+shapes.
+
+'''
+from kivy.app import App
+from kivy.uix.floatlayout import FloatLayout
+from kivy.uix.slider import Slider
+from kivy.graphics import Color, Bezier, Line
+
+
+class BezierTest(FloatLayout):
+
+    def __init__(self, points=[], loop=False, *args, **kwargs):
+        super(BezierTest, self).__init__(*args, **kwargs)
+        self.d = 10  # pixel tolerance when clicking on a point
+        self.points = points
+        self.loop = loop
+        self.current_point = None  # index of point being dragged
+
+        with self.canvas:
+            Color(1.0, 0.0, 0.0)
+
+            self.bezier = Bezier(
+                    points=self.points,
+                    segments=150,
+                    loop=self.loop,
+                    dash_length=100,
+                    dash_offset=10)
+
+            Color(1.0, 0.0, 1.0)
+            self.line = Line(
+                    points=self.points + self.points[:2],
+                    dash_offset=10,
+                    dash_length=100)
+
+        s = Slider(y=0, pos_hint={'x': .3}, size_hint=(.7, None), height=50)
+        s.bind(value=self._set_bezier_dash_offset)
+        self.add_widget(s)
+
+        s = Slider(y=50, pos_hint={'x': .3}, size_hint=(.7, None), height=50)
+        s.bind(value=self._set_line_dash_offset)
+        self.add_widget(s)
+
+    def _set_bezier_dash_offset(self, instance, value):
+        # effect to reduce length while increase offset
+        self.bezier.dash_length = 100 - value
+        self.bezier.dash_offset = value
+
+    def _set_line_dash_offset(self, instance, value):
+        # effect to reduce length while increase offset
+        self.line.dash_length = 100 - value
+        self.line.dash_offset = value
+
+    def on_touch_down(self, touch):
+        if self.collide_point(touch.pos[0], touch.pos[1]):
+            for i, p in enumerate(list(zip(self.points[::2],
+                                           self.points[1::2]))):
+                if (abs(touch.pos[0] - self.pos[0] - p[0]) < self.d and
+                        abs(touch.pos[1] - self.pos[1] - p[1]) < self.d):
+                    self.current_point = i + 1
+                    return True
+            return super(BezierTest, self).on_touch_down(touch)
+
+    def on_touch_up(self, touch):
+        if self.collide_point(touch.pos[0], touch.pos[1]):
+            if self.current_point:
+                self.current_point = None
+                return True
+            return super(BezierTest, self).on_touch_up(touch)
+
+    def on_touch_move(self, touch):
+        if self.collide_point(touch.pos[0], touch.pos[1]):
+            c = self.current_point
+            if c:
+                self.points[(c - 1) * 2] = touch.pos[0] - self.pos[0]
+                self.points[(c - 1) * 2 + 1] = touch.pos[1] - self.pos[1]
+                self.bezier.points = self.points
+                self.line.points = self.points + self.points[:2]
+                return True
+            return super(BezierTest, self).on_touch_move(touch)
+
+
+class Main(App):
+
+    def build(self):
+        from math import cos, sin, radians
+        x = y = 150
+        z = 100
+        # Pacman !
+        points = [x, y]
+        for i in range(45, 360, 45):
+            i = radians(i)
+            points.extend([x + cos(i) * z, y + sin(i) * z])
+        return BezierTest(points=points, loop=True)
+
+
+if __name__ == '__main__':
+    Main().run()

freechat-client/share/kivy-examples/canvas/canvas_stress.py

@@ -0,0 +1,72 @@
+'''
+Canvas stress
+=============
+
+This example tests the performance of our Graphics engine by drawing large
+numbers of small squares. You should see a black canvas with buttons and a
+label at the bottom. Pressing the buttons adds small colored squares to the
+canvas.
+
+'''
+
+from kivy.uix.button import Button
+from kivy.uix.widget import Widget
+from kivy.uix.label import Label
+from kivy.uix.boxlayout import BoxLayout
+from kivy.app import App
+from kivy.graphics import Color, Rectangle
+from random import random as r
+from functools import partial
+
+
+class StressCanvasApp(App):
+
+    def add_rects(self, label, wid, count, *largs):
+        label.text = str(int(label.text) + count)
+        with wid.canvas:
+            for x in range(count):
+                Color(r(), 1, 1, mode='hsv')
+                Rectangle(pos=(r() * wid.width + wid.x,
+                               r() * wid.height + wid.y), size=(20, 20))
+
+    def double_rects(self, label, wid, *largs):
+        count = int(label.text)
+        self.add_rects(label, wid, count, *largs)
+
+    def reset_rects(self, label, wid, *largs):
+        label.text = '0'
+        wid.canvas.clear()
+
+    def build(self):
+        wid = Widget()
+
+        label = Label(text='0')
+
+        btn_add100 = Button(text='+ 100 rects',
+                            on_press=partial(self.add_rects, label, wid, 100))
+
+        btn_add500 = Button(text='+ 500 rects',
+                            on_press=partial(self.add_rects, label, wid, 500))
+
+        btn_double = Button(text='x 2',
+                            on_press=partial(self.double_rects, label, wid))
+
+        btn_reset = Button(text='Reset',
+                           on_press=partial(self.reset_rects, label, wid))
+
+        layout = BoxLayout(size_hint=(1, None), height=50)
+        layout.add_widget(btn_add100)
+        layout.add_widget(btn_add500)
+        layout.add_widget(btn_double)
+        layout.add_widget(btn_reset)
+        layout.add_widget(label)
+
+        root = BoxLayout(orientation='vertical')
+        root.add_widget(wid)
+        root.add_widget(layout)
+
+        return root
+
+
+if __name__ == '__main__':
+    StressCanvasApp().run()

freechat-client/share/kivy-examples/canvas/circle.py

@@ -0,0 +1,84 @@
+'''
+Circle Example
+==============
+
+This example exercises circle (ellipse) drawing. You should see sliders at the
+top of the screen with the Kivy logo below it. The sliders control the
+angle start and stop and the height and width scales. There is a button
+to reset the sliders. The logo used for the circle's background image is
+from the kivy/data directory. The entire example is coded in the
+kv language description.
+'''
+
+from kivy.app import App
+from kivy.lang import Builder
+
+kv = '''
+BoxLayout:
+    orientation: 'vertical'
+    BoxLayout:
+        size_hint_y: None
+        height: sp(100)
+        BoxLayout:
+            orientation: 'vertical'
+            Slider:
+                id: e1
+                min: -360.
+                max: 360.
+            Label:
+                text: 'angle_start = {}'.format(e1.value)
+        BoxLayout:
+            orientation: 'vertical'
+            Slider:
+                id: e2
+                min: -360.
+                max: 360.
+                value: 360
+            Label:
+                text: 'angle_end = {}'.format(e2.value)
+
+    BoxLayout:
+        size_hint_y: None
+        height: sp(100)
+        BoxLayout:
+            orientation: 'vertical'
+            Slider:
+                id: wm
+                min: 0
+                max: 2
+                value: 1
+            Label:
+                text: 'Width mult. = {}'.format(wm.value)
+        BoxLayout:
+            orientation: 'vertical'
+            Slider:
+                id: hm
+                min: 0
+                max: 2
+                value: 1
+            Label:
+                text: 'Height mult. = {}'.format(hm.value)
+        Button:
+            text: 'Reset ratios'
+            on_press: wm.value = 1; hm.value = 1
+
+    FloatLayout:
+        canvas:
+            Color:
+                rgb: 1, 1, 1
+            Ellipse:
+                pos: 100, 100
+                size: 200 * wm.value, 201 * hm.value
+                source: 'data/logo/kivy-icon-512.png'
+                angle_start: e1.value
+                angle_end: e2.value
+
+'''
+
+
+class CircleApp(App):
+    def build(self):
+        return Builder.load_string(kv)
+
+
+CircleApp().run()

freechat-client/share/kivy-examples/canvas/fbo_canvas.py

@@ -0,0 +1,91 @@
+'''
+FBO Canvas
+==========
+
+This demonstrates a layout using an FBO (Frame Buffer Off-screen)
+instead of a plain canvas. You should see a black canvas with a
+button labelled 'FBO' in the bottom left corner. Clicking it
+animates the button moving right to left.
+'''
+
+__all__ = ('FboFloatLayout', )
+
+from kivy.graphics import Color, Rectangle, Canvas, ClearBuffers, ClearColor
+from kivy.graphics.fbo import Fbo
+from kivy.uix.floatlayout import FloatLayout
+from kivy.properties import ObjectProperty, NumericProperty
+from kivy.app import App
+from kivy.core.window import Window
+from kivy.animation import Animation
+from kivy.factory import Factory
+
+
+class FboFloatLayout(FloatLayout):
+
+    texture = ObjectProperty(None, allownone=True)
+
+    alpha = NumericProperty(1)
+
+    def __init__(self, **kwargs):
+        self.canvas = Canvas()
+        with self.canvas:
+            self.fbo = Fbo(size=self.size)
+            self.fbo_color = Color(1, 1, 1, 1)
+            self.fbo_rect = Rectangle()
+
+        with self.fbo:
+            ClearColor(0, 0, 0, 0)
+            ClearBuffers()
+
+        # wait that all the instructions are in the canvas to set texture
+        self.texture = self.fbo.texture
+        super(FboFloatLayout, self).__init__(**kwargs)
+
+    def add_widget(self, *largs):
+        # trick to attach graphics instruction to fbo instead of canvas
+        canvas = self.canvas
+        self.canvas = self.fbo
+        ret = super(FboFloatLayout, self).add_widget(*largs)
+        self.canvas = canvas
+        return ret
+
+    def remove_widget(self, *largs):
+        canvas = self.canvas
+        self.canvas = self.fbo
+        super(FboFloatLayout, self).remove_widget(*largs)
+        self.canvas = canvas
+
+    def on_size(self, instance, value):
+        self.fbo.size = value
+        self.texture = self.fbo.texture
+        self.fbo_rect.size = value
+
+    def on_pos(self, instance, value):
+        self.fbo_rect.pos = value
+
+    def on_texture(self, instance, value):
+        self.fbo_rect.texture = value
+
+    def on_alpha(self, instance, value):
+        self.fbo_color.rgba = (1, 1, 1, value)
+
+
+class ScreenLayerApp(App):
+    def build(self):
+
+        f = FboFloatLayout()
+        b = Factory.Button(text="FBO", size_hint=(None, None))
+        f.add_widget(b)
+
+        def anim_btn(*args):
+            if b.pos[0] == 0:
+                Animation(x=f.width - b.width).start(b)
+            else:
+                Animation(x=0).start(b)
+        b.bind(on_press=anim_btn)
+
+        return f
+
+
+if __name__ == "__main__":
+    ScreenLayerApp().run()

freechat-client/share/kivy-examples/canvas/lines.py

@@ -0,0 +1,296 @@
+'''
+Line (SmoothLine) Experiment
+============================
+
+This demonstrates the experimental and unfinished SmoothLine feature
+for fast line drawing. You should see a multi-segment
+path at the top of the screen, and sliders and buttons along the bottom.
+You can click to add new points to the segment, change the transparency
+and width of the line, or hit 'Animate' to see a set of sine and cosine
+animations. The Cap and Joint buttons don't work: SmoothLine has not
+implemented these features yet.
+'''
+
+from kivy.app import App
+from kivy.properties import OptionProperty, NumericProperty, ListProperty, \
+        BooleanProperty
+from kivy.uix.floatlayout import FloatLayout
+from kivy.lang import Builder
+from kivy.clock import Clock
+from math import cos, sin
+
+Builder.load_string('''
+<LinePlayground>:
+    canvas:
+        Color:
+            rgba: .4, .4, 1, root.alpha
+        Line:
+            points: self.points
+            joint: self.joint
+            cap: self.cap
+            width: self.linewidth
+            close: self.close
+            dash_length: self.dash_length
+            dash_offset: self.dash_offset
+            dashes: self.dashes
+        Color:
+            rgba: .8, .8, .8, root.alpha_controlline
+        Line:
+            points: self.points
+            close: self.close
+            dash_length: self.dash_length
+            dash_offset: self.dash_offset
+            dashes: self.dashes
+        Color:
+            rgba: 1, .4, .4, root.alpha
+        Line:
+            points: self.points2
+            joint: self.joint
+            cap: self.cap
+            width: self.linewidth
+            close: self.close
+            dash_length: self.dash_length
+            dash_offset: self.dash_offset
+            dashes: self.dashes
+
+    GridLayout:
+        cols: 2
+        size_hint: 1, None
+        height: 44 * 5
+
+        GridLayout:
+            cols: 2
+
+            Label:
+                text: 'Alpha'
+            Slider:
+                value: root.alpha
+                on_value: root.alpha = float(args[1])
+                min: 0.
+                max: 1.
+            Label:
+                text: 'Alpha Control Line'
+            Slider:
+                value: root.alpha_controlline
+                on_value: root.alpha_controlline = float(args[1])
+                min: 0.
+                max: 1.
+            Label:
+                text: 'Width'
+            Slider:
+                value: root.linewidth
+                on_value: root.linewidth = args[1]
+                min: 1
+                max: 40
+            Label:
+                text: 'Cap'
+            GridLayout:
+                rows: 1
+                ToggleButton:
+                    group: 'cap'
+                    text: 'none'
+                    on_press: root.cap = self.text
+                ToggleButton:
+                    group: 'cap'
+                    text: 'round'
+                    on_press: root.cap = self.text
+                ToggleButton:
+                    group: 'cap'
+                    text: 'square'
+                    on_press: root.cap = self.text
+            Label:
+                text: 'Joint'
+            GridLayout:
+                rows: 1
+                ToggleButton:
+                    group: 'joint'
+                    text: 'none'
+                    on_press: root.joint = self.text
+                ToggleButton:
+                    group: 'joint'
+                    text: 'round'
+                    on_press: root.joint = self.text
+                ToggleButton:
+                    group: 'joint'
+                    text: 'miter'
+                    on_press: root.joint = self.text
+                ToggleButton:
+                    group: 'joint'
+                    text: 'bevel'
+                    on_press: root.joint = self.text
+
+            Label:
+                text: 'Close'
+            ToggleButton:
+                text: 'Close line'
+                on_press: root.close = self.state == 'down'
+
+            Label:
+                text: 'Dashes'
+            GridLayout:
+                rows: 1
+                ToggleButton:
+                    group: 'dashes'
+                    text: 'none'
+                    state: 'down'
+                    allow_no_selection: False
+                    size_hint_x: None
+                    width: self.texture_size[0]
+                    padding_x: '5dp'
+                    on_state:
+                        if self.state == 'down': root.dashes = []
+                        if self.state == 'down': root.dash_length = 1
+                        if self.state == 'down': root.dash_offset = 0
+                ToggleButton:
+                    id: constant
+                    group: 'dashes'
+                    text: 'Constant: '
+                    allow_no_selection: False
+                    size_hint_x: None
+                    width: self.texture_size[0]
+                    padding_x: '5dp'
+                    on_state:
+                        if self.state == 'down': root.dashes = []
+                        if self.state == 'down': root.dash_length = \
+                            int(dash_len.text or 1)
+                        if self.state == 'down': root.dash_offset = \
+                            int(dash_offset.text or 0)
+                Label:
+                    text: 'len'
+                    size_hint_x: None
+                    width: self.texture_size[0]
+                    padding_x: '5dp'
+                TextInput:
+                    id: dash_len
+                    size_hint_x: None
+                    width: '30dp'
+                    input_filter: 'int'
+                    multiline: False
+                    text: '1'
+                    on_text: if constant.state == 'down': \
+                        root.dash_length = int(self.text or 1)
+                Label:
+                    text: 'offset'
+                    size_hint_x: None
+                    width: self.texture_size[0]
+                    padding_x: '5dp'
+                TextInput:
+                    id: dash_offset
+                    size_hint_x: None
+                    width: '30dp'
+                    input_filter: 'int'
+                    multiline: False
+                    text: '0'
+                    on_text: if constant.state == 'down': \
+                        root.dash_offset = int(self.text or 0)
+                ToggleButton:
+                    id: dash_list
+                    group: 'dashes'
+                    text: 'List: '
+                    allow_no_selection: False
+                    size_hint_x: None
+                    width: self.texture_size[0]
+                    padding_x: '5dp'
+                    on_state:
+                        if self.state == 'down': root.dashes = list(map(lambda\
+                            x: int(x or 0), dash_list_in.text.split(',')))
+                        if self.state == 'down': root.dash_length = 1
+                        if self.state == 'down': root.dash_offset = 0
+                TextInput:
+                    id: dash_list_in
+                    size_hint_x: None
+                    width: '180dp'
+                    multiline: False
+                    text: '4,3,10,15'
+                    on_text: if dash_list.state == 'down': root.dashes = \
+                        list(map(lambda x: int(x or 0), self.text.split(',')))
+
+        AnchorLayout:
+            GridLayout:
+                cols: 1
+                size_hint: None, None
+                size: self.minimum_size
+                ToggleButton:
+                    size_hint: None, None
+                    size: 100, 44
+                    text: 'Animate'
+                    on_state: root.animate(self.state == 'down')
+                Button:
+                    size_hint: None, None
+                    size: 100, 44
+                    text: 'Clear'
+                    on_press: root.points = root.points2 = []
+
+''')
+
+
+class LinePlayground(FloatLayout):
+
+    alpha_controlline = NumericProperty(1.0)
+    alpha = NumericProperty(0.5)
+    close = BooleanProperty(False)
+    points = ListProperty([(500, 500),
+                          [300, 300, 500, 300],
+                          [500, 400, 600, 400]])
+    points2 = ListProperty([])
+    joint = OptionProperty('none', options=('round', 'miter', 'bevel', 'none'))
+    cap = OptionProperty('none', options=('round', 'square', 'none'))
+    linewidth = NumericProperty(10.0)
+    dt = NumericProperty(0)
+    dash_length = NumericProperty(1)
+    dash_offset = NumericProperty(0)
+    dashes = ListProperty([])
+
+    _update_points_animation_ev = None
+
+    def on_touch_down(self, touch):
+        if super(LinePlayground, self).on_touch_down(touch):
+            return True
+        touch.grab(self)
+        self.points.append(touch.pos)
+        return True
+
+    def on_touch_move(self, touch):
+        if touch.grab_current is self:
+            self.points[-1] = touch.pos
+            return True
+        return super(LinePlayground, self).on_touch_move(touch)
+
+    def on_touch_up(self, touch):
+        if touch.grab_current is self:
+            touch.ungrab(self)
+            return True
+        return super(LinePlayground, self).on_touch_up(touch)
+
+    def animate(self, do_animation):
+        if do_animation:
+            self._update_points_animation_ev = Clock.schedule_interval(
+                self.update_points_animation, 0)
+        elif self._update_points_animation_ev is not None:
+            self._update_points_animation_ev.cancel()
+
+    def update_points_animation(self, dt):
+        cy = self.height * 0.6
+        cx = self.width * 0.1
+        w = self.width * 0.8
+        step = 20
+        points = []
+        points2 = []
+        self.dt += dt
+        for i in range(int(w / step)):
+            x = i * step
+            points.append(cx + x)
+            points.append(cy + cos(x / w * 8. + self.dt) * self.height * 0.2)
+            points2.append(cx + x)
+            points2.append(cy + sin(x / w * 8. + self.dt) * self.height * 0.2)
+        self.points = points
+        self.points2 = points2
+
+
+class TestLineApp(App):
+    def build(self):
+        return LinePlayground()
+
+
+if __name__ == '__main__':
+    TestLineApp().run()

freechat-client/share/kivy-examples/canvas/lines_extended.py

@@ -0,0 +1,183 @@
+'''
+Lines Extended Demo
+===================
+
+This demonstrates how to use the extended line drawing routines such
+as circles, ellipses, and rectangles. You should see a static image of
+labelled shapes on the screen.
+'''
+
+from kivy.app import App
+from kivy.uix.gridlayout import GridLayout
+from kivy.uix.widget import Widget
+from kivy.lang import Builder
+
+Builder.load_string('''
+<LineEllipse1>:
+    canvas:
+        Color:
+            rgba: 1, .1, .1, .9
+        Line:
+            width: 2.
+            ellipse: (self.x, self.y, self.width, self.height)
+    Label:
+        center: root.center
+        text: 'Ellipse'
+
+<LineEllipse2>:
+    canvas:
+        Color:
+            rgba: 1, .1, .1, .9
+        Line:
+            width: 2.
+            ellipse: (self.x, self.y, self.width, self.height, 90, 180)
+    Label:
+        center: root.center
+        text: 'Ellipse from 90 to 180'
+
+# fun result with low segments!
+<LineEllipse3>:
+    canvas:
+        Color:
+            rgba: 1, .1, .1, .9
+        Line:
+            width: 2.
+            ellipse: (self.x, self.y, self.width, self.height, 90, 720, 10)
+    Label:
+        center: root.center
+        text: 'Ellipse from 90 to 720\\n10 segments'
+        halign: 'center'
+
+<LineCircle1>:
+    canvas:
+        Color:
+            rgba: .1, 1, .1, .9
+        Line:
+            width: 2.
+            circle:
+                (self.center_x, self.center_y, min(self.width, self.height)
+                / 2)
+    Label:
+        center: root.center
+        text: 'Circle'
+
+<LineCircle2>:
+    canvas:
+        Color:
+            rgba: .1, 1, .1, .9
+        Line:
+            width: 2.
+            circle:
+                (self.center_x, self.center_y, min(self.width, self.height)
+                / 2, 90, 180)
+    Label:
+        center: root.center
+        text: 'Circle from 90 to 180'
+
+<LineCircle3>:
+    canvas:
+        Color:
+            rgba: .1, 1, .1, .9
+        Line:
+            width: 2.
+            circle:
+                (self.center_x, self.center_y, min(self.width, self.height)
+                / 2, 90, 180, 10)
+    Label:
+        center: root.center
+        text: 'Circle from 90 to 180\\n10 segments'
+        halign: 'center'
+
+<LineCircle4>:
+    canvas:
+        Color:
+            rgba: .1, 1, .1, .9
+        Line:
+            width: 2.
+            circle:
+                (self.center_x, self.center_y, min(self.width, self.height)
+                / 2, 0, 360)
+    Label:
+        center: root.center
+        text: 'Circle from 0 to 360'
+        halign: 'center'
+
+<LineRectangle>:
+    canvas:
+        Color:
+            rgba: .1, .1, 1, .9
+        Line:
+            width: 2.
+            rectangle: (self.x, self.y, self.width, self.height)
+    Label:
+        center: root.center
+        text: 'Rectangle'
+
+<LineBezier>:
+    canvas:
+        Color:
+            rgba: .1, .1, 1, .9
+        Line:
+            width: 2.
+            bezier:
+                (self.x, self.y, self.center_x - 40, self.y + 100,
+                self.center_x + 40, self.y - 100, self.right, self.y)
+    Label:
+        center: root.center
+        text: 'Bezier'
+''')
+
+
+class LineEllipse1(Widget):
+    pass
+
+
+class LineEllipse2(Widget):
+    pass
+
+
+class LineEllipse3(Widget):
+    pass
+
+
+class LineCircle1(Widget):
+    pass
+
+
+class LineCircle2(Widget):
+    pass
+
+
+class LineCircle3(Widget):
+    pass
+
+
+class LineCircle4(Widget):
+    pass
+
+
+class LineRectangle(Widget):
+    pass
+
+
+class LineBezier(Widget):
+    pass
+
+
+class LineExtendedApp(App):
+    def build(self):
+        root = GridLayout(cols=2, padding=50, spacing=50)
+        root.add_widget(LineEllipse1())
+        root.add_widget(LineEllipse2())
+        root.add_widget(LineEllipse3())
+        root.add_widget(LineCircle1())
+        root.add_widget(LineCircle2())
+        root.add_widget(LineCircle3())
+        root.add_widget(LineCircle4())
+        root.add_widget(LineRectangle())
+        root.add_widget(LineBezier())
+        return root
+
+
+if __name__ == '__main__':
+    LineExtendedApp().run()

freechat-client/share/kivy-examples/canvas/mesh.py

@@ -0,0 +1,57 @@
+'''
+Mesh test
+=========
+
+This demonstrates the use of a mesh mode to distort an image. You should see
+a line of buttons across the bottom of a canvas. Pressing them displays
+the mesh, a small circle of points, with different mesh.mode settings.
+'''
+
+from kivy.uix.button import Button
+from kivy.uix.widget import Widget
+from kivy.uix.boxlayout import BoxLayout
+from kivy.app import App
+from kivy.graphics import Mesh
+from functools import partial
+from math import cos, sin, pi
+
+
+class MeshTestApp(App):
+
+    def change_mode(self, mode, *largs):
+        self.mesh.mode = mode
+
+    def build_mesh(self):
+        """ returns a Mesh of a rough circle. """
+        vertices = []
+        indices = []
+        step = 10
+        istep = (pi * 2) / float(step)
+        for i in range(step):
+            x = 300 + cos(istep * i) * 100
+            y = 300 + sin(istep * i) * 100
+            vertices.extend([x, y, 0, 0])
+            indices.append(i)
+        return Mesh(vertices=vertices, indices=indices)
+
+    def build(self):
+        wid = Widget()
+        with wid.canvas:
+            self.mesh = self.build_mesh()
+
+        layout = BoxLayout(size_hint=(1, None), height=50)
+        for mode in ('points', 'line_strip', 'line_loop', 'lines',
+                'triangle_strip', 'triangle_fan'):
+            button = Button(text=mode)
+            button.bind(on_release=partial(self.change_mode, mode))
+            layout.add_widget(button)
+
+        root = BoxLayout(orientation='vertical')
+        root.add_widget(wid)
+        root.add_widget(layout)
+
+        return root
+
+
+if __name__ == '__main__':
+    MeshTestApp().run()

freechat-client/share/kivy-examples/canvas/mesh_manipulation.py

@@ -0,0 +1,101 @@
+'''
+Mesh Manipulation Example
+=========================
+
+This demonstrates creating a mesh and using it to deform the texture (the
+kivy log). You should see the kivy logo with a five sliders to right.
+The sliders change the mesh points' x and y offsets, radius, and a
+'wobble' deformation's magnitude and speed.
+
+This example is developed in gabriel's blog post at
+http://kivy.org/planet/2014/01/kivy-image-manipulations-with-mesh-and-textures/
+'''
+
+from kivy.app import App
+from kivy.lang import Builder
+from kivy.core.image import Image as CoreImage
+from kivy.properties import ListProperty, ObjectProperty, NumericProperty
+from kivy.clock import Clock
+from kivy.core.window import Window
+from math import sin, cos, pi
+
+
+kv = '''
+BoxLayout:
+    Widget:
+        canvas:
+            Color:
+                rgba: 1, 1, 1, 1
+            Mesh:
+                vertices: app.mesh_points
+                indices: range(len(app.mesh_points) // 4)
+                texture: app.mesh_texture
+                mode: 'triangle_fan'
+    BoxLayout:
+        orientation: 'vertical'
+        size_hint_x: None
+        width: 100
+        Slider:
+            value: app.offset_x
+            on_value: app.offset_x = args[1]
+            min: -1
+            max: 1
+        Slider:
+            value: app.offset_y
+            on_value: app.offset_y = args[1]
+            min: -1
+            max: 1
+        Slider:
+            value: app.radius
+            on_value: app.radius = args[1]
+            min: 10
+            max: 1000
+        Slider:
+            value: app.sin_wobble
+            on_value: app.sin_wobble = args[1]
+            min: -50
+            max: 50
+        Slider:
+            value: app.sin_wobble_speed
+            on_value: app.sin_wobble_speed = args[1]
+            min: 0
+            max: 50
+            step: 1
+'''
+
+
+class MeshBallApp(App):
+    mesh_points = ListProperty([])
+    mesh_texture = ObjectProperty(None)
+    radius = NumericProperty(500)
+    offset_x = NumericProperty(.5)
+    offset_y = NumericProperty(.5)
+    sin_wobble = NumericProperty(0)
+    sin_wobble_speed = NumericProperty(0)
+
+    def build(self):
+        self.mesh_texture = CoreImage('data/logo/kivy-icon-512.png').texture
+        Clock.schedule_interval(self.update_points, 0)
+        return Builder.load_string(kv)
+
+    def update_points(self, *args):
+        """ replace self.mesh_points based on current slider positions.
+        Called continuously by a timer because this only sample code.
+        """
+        points = [Window.width / 2, Window.height / 2, .5, .5]
+        i = 0
+        while i < 2 * pi:
+            i += 0.01 * pi
+            points.extend([
+                Window.width / 2 + cos(i) * (self.radius + self.sin_wobble *
+                                             sin(i * self.sin_wobble_speed)),
+                Window.height / 2 + sin(i) * (self.radius + self.sin_wobble *
+                                              sin(i * self.sin_wobble_speed)),
+                self.offset_x + sin(i),
+                self.offset_y + cos(i)])
+
+        self.mesh_points = points
+
+
+if __name__ == '__main__':
+    MeshBallApp().run()

freechat-client/share/kivy-examples/canvas/multitexture.py

@@ -0,0 +1,110 @@
+'''
+Multitexture Example
+====================
+
+This example blends two textures: the image mtexture1.png of the letter K
+and the image mtexture2.png of an orange circle. You should see an orange
+K clipped to a circle. It uses a custom shader, written in glsl
+(OpenGL Shading Language), stored in a local string.
+
+Note the image mtexture1.png is a white 'K' on a transparent background, which
+makes it hard to see.
+'''
+
+from kivy.clock import Clock
+from kivy.app import App
+from kivy.uix.widget import Widget
+from kivy.uix.floatlayout import FloatLayout
+from kivy.lang import Builder
+from kivy.core.window import Window
+from kivy.graphics import RenderContext, Color, Rectangle, BindTexture
+
+
+fs_multitexture = '''
+$HEADER$
+
+// New uniform that will receive texture at index 1
+uniform sampler2D texture1;
+
+void main(void) {
+
+    // multiple current color with both texture (0 and 1).
+    // currently, both will use exactly the same texture coordinates.
+    gl_FragColor = frag_color * \
+        texture2D(texture0, tex_coord0) * \
+        texture2D(texture1, tex_coord0);
+}
+'''
+
+
+kv = """
+<MultitextureLayout>:
+
+    Image:
+        source: "mtexture1.png"
+        size_hint: .3,.3
+        id: 1
+        pos: 0,200
+    Image:
+        source: "mtexture2.png"
+        size_hint: .3,.3
+        id: 2
+        pos: 200,200
+
+    MultitextureWidget:
+
+"""
+
+Builder.load_string(kv)
+
+
+class MultitextureWidget(Widget):
+
+    def __init__(self, **kwargs):
+        self.canvas = RenderContext()
+        # setting shader.fs to new source code automatically compiles it.
+        self.canvas.shader.fs = fs_multitexture
+        with self.canvas:
+            Color(1, 1, 1)
+
+            # here, we are binding a custom texture at index 1
+            # this will be used as texture1 in shader.
+            # The filenames are misleading: they do not correspond to the
+            # index here or in the shader.
+            BindTexture(source='mtexture2.png', index=1)
+
+            # create a rectangle with texture (will be at index 0)
+            Rectangle(size=(150, 150), source='mtexture1.png', pos=(500, 200))
+
+        # set the texture1 to use texture index 1
+        self.canvas['texture1'] = 1
+
+        # call the constructor of parent
+        # if they are any graphics objects, they will be added on our new
+        # canvas
+        super(MultitextureWidget, self).__init__(**kwargs)
+
+        # We'll update our glsl variables in a clock
+        Clock.schedule_interval(self.update_glsl, 0)
+
+    def update_glsl(self, *largs):
+        # This is needed for the default vertex shader.
+        self.canvas['projection_mat'] = Window.render_context['projection_mat']
+        self.canvas['modelview_mat'] = Window.render_context['modelview_mat']
+
+
+class MultitextureLayout(FloatLayout):
+
+    def __init__(self, **kwargs):
+        self.size = kwargs['size']
+        super(MultitextureLayout, self).__init__(**kwargs)
+
+
+class MultitextureApp(App):
+
+    def build(self):
+        return MultitextureLayout(size=(600, 600))
+
+
+if __name__ == '__main__':
+    MultitextureApp().run()

freechat-client/share/kivy-examples/canvas/repeat_texture.py

@@ -0,0 +1,65 @@
+'''
+Repeat Texture on Resize
+========================
+
+This examples repeats the letter 'K' (mtexture1.png) 64 times in a window.
+You should see 8 rows and 8 columns of white K letters, along a label
+showing the current size. As you resize the window, it stays an 8x8.
+This example includes a label with a colored background.
+
+Note the image mtexture1.png is a white 'K' on a transparent background, which
+makes it hard to see.
+'''
+
+from kivy.app import App
+from kivy.uix.image import Image
+from kivy.uix.label import Label
+from kivy.properties import ObjectProperty, ListProperty
+from kivy.lang import Builder
+
+kv = '''
+<LabelOnBackground>:
+    canvas.before:
+        Color:
+            rgb: self.background
+        Rectangle:
+            pos: self.pos
+            size: self.size
+
+FloatLayout:
+    canvas.before:
+        Color:
+            rgb: 1, 1, 1
+        Rectangle:
+            pos: self.pos
+            size: self.size
+            texture: app.texture
+
+    LabelOnBackground:
+        text: '{} (try to resize the window)'.format(root.size)
+        color: (0.4, 1, 1, 1)
+        background: (.3, .3, .3)
+        pos_hint: {'center_x': .5, 'center_y': .5 }
+        size_hint: None, None
+        height: 30
+        width: 250
+
+'''
+
+
+class LabelOnBackground(Label):
+    background = ListProperty((0.2, 0.2, 0.2))
+
+
+class RepeatTexture(App):
+
+    texture = ObjectProperty()
+
+    def build(self):
+        self.texture = Image(source='mtexture1.png').texture
+        self.texture.wrap = 'repeat'
+        self.texture.uvsize = (8, 8)
+        return Builder.load_string(kv)
+
+
+RepeatTexture().run()

freechat-client/share/kivy-examples/canvas/rotation.py

@@ -0,0 +1,35 @@
+'''
+Rotation Example
+================
+
+This example rotates a button using PushMatrix and PopMatrix. You should see
+a static button with the words 'hello world' rotated at a 45 degree angle.
+'''
+
+
+from kivy.app import App
+from kivy.lang import Builder
+
+kv = '''
+FloatLayout:
+
+    Button:
+        text: 'hello world'
+        size_hint: None, None
+        pos_hint: {'center_x': .5, 'center_y': .5}
+        canvas.before:
+            PushMatrix
+            Rotate:
+                angle: 45
+                origin: self.center
+        canvas.after:
+            PopMatrix
+'''
+
+
+class RotationApp(App):
+    def build(self):
+        return Builder.load_string(kv)
+
+
+RotationApp().run()

freechat-client/share/kivy-examples/canvas/rounded_rectangle.py

@@ -0,0 +1,153 @@
+# -*- coding: utf-8 -*-
+from kivy.app import App
+from kivy.uix.widget import Widget
+from kivy.graphics import Color, Ellipse, Rectangle, RoundedRectangle
+from kivy.lang import Builder
+
+TEXTURE = 'kiwi.jpg'
+YELLOW = (1, .7, 0)
+ORANGE = (1, .45, 0)
+RED = (1, 0, 0)
+WHITE = (1, 1, 1)
+
+
+class RoundedRectangleWidget(Widget):
+    def prepare(self):
+        with self.canvas:
+            Color(*WHITE)
+
+            # Rectangle of default size 100x100
+            Rectangle(pos=(50, 400))
+
+            # RoundedRectangles of default size 100x100:
+
+            # Textured:
+            RoundedRectangle(
+                pos=(175, 400), radius=[0, 50, 0, 50], source=TEXTURE)
+
+            # Colored:
+            Color(*YELLOW)
+            RoundedRectangle(pos=(300, 400), radius=[0, 50, 0, 50])
+
+            # Textured + Colored
+            # Color(.3,.3,.3, 1)
+            RoundedRectangle(
+                pos=(425, 400), radius=[0, 50, 0, 50], source=TEXTURE)
+
+            # Possible radius arguments:
+            # 1) Same value for each corner
+            Color(*ORANGE)
+
+            # With same radius 20x20
+            RoundedRectangle(pos=(50, 275), radius=[20])
+
+            # With same radius dimensions 20x40
+            RoundedRectangle(pos=(175, 275), radius=[(20, 40)])
+
+            # 2) Different values for each corner
+            Color(*RED)
+
+            # With different radiuses NxN:
+            RoundedRectangle(pos=(300, 275), radius=[10, 20, 30, 40])
+
+            # With different radiuses:
+            RoundedRectangle(
+                pos=(425, 275),
+                radius=[(10, 20), (20, 30), (30, 40), (40, 50)])
+
+            # Default ellipses
+            Color(*WHITE)
+            Ellipse(pos=(50, 150))
+            Ellipse(pos=(175, 150))
+            Ellipse(pos=(300, 150))
+            Ellipse(pos=(425, 150))
+
+            # Radius dimensions can't be bigger than half of the figure side
+            RoundedRectangle(pos=(175, 150), radius=[9000], source=TEXTURE)
+
+            # Segments parameter defines how many segments each corner has.
+            # More segments - more roundness
+            Color(*RED)
+            RoundedRectangle(pos=(300, 150), radius=[9000])
+            RoundedRectangle(pos=(425, 150), radius=[9000], segments=15)
+
+            Color(*ORANGE)
+            RoundedRectangle(pos=(425, 150), radius=[9000], segments=2)
+
+            Color(*YELLOW)
+            RoundedRectangle(pos=(425, 150), radius=[9000], segments=1)
+
+            # Various sizes
+            # You can cut corners by setting segments to 1.
+            # You can set different segment count to corners,
+            # by using a list useful for lowering vertex count
+            # by using small amount on small corners, while using
+            # bigger amount on bigger corners.
+            RoundedRectangle(
+                pos=(50, 25),
+                radius=[40],
+                segments=[1, 1, 10, 10],
+                size=(125, 100))
+
+            # If radius dimension is 0, then the corner will be sharp
+            # (90 degrees). It is also possible to mix tuple values
+            # with numeric
+            Color(*ORANGE)
+            RoundedRectangle(
+                pos=(200, 25),
+                radius=[(40, 20),
+                45.5, 45.5, 0],
+                segments=[2, 3, 3, 1], size=(125, 100))
+
+            Color(*RED)
+            RoundedRectangle(
+                pos=(350, 25),
+                radius=[(40, 40), (40, 40), (20, 20), (20, 20)],
+                segments=[2, 3, 3, 2],
+                size=(150, 100))
+
+
+class DrawRoundedRectanglesApp(App):
+    def build(self):
+        kv = '''
+Widget:
+    canvas:
+        Color:
+            rgba: 1, 1,1, 1
+
+        RoundedRectangle:
+            pos: 575, 400
+            size: 100, 100
+            radius: [0, 50, 0, 50]
+            source: 'kiwi.jpg'
+
+        Color:
+            rgba: 0, 0.8, 0.8, 1
+
+        RoundedRectangle:
+            pos: 575, 275
+            size: 100, 100
+            radius: [(10, 20), (20, 30), (30, 40), (40, 50)]
+
+        RoundedRectangle:
+            pos: 575, 150
+            size: 100, 100
+            radius: [9000]
+            segments: 15
+
+        RoundedRectangle:
+            pos: 550, 25
+            size: 150, 100
+            segments: [1, 2, 1, 3]
+            radius: [30, 40, 30, 40]
+
+'''
+        widget = RoundedRectangleWidget()
+        widget.prepare()
+        kvrect = Builder.load_string(kv)
+        widget.add_widget(kvrect)
+        return widget
+
+
+if __name__ == '__main__':
+    DrawRoundedRectanglesApp().run()

freechat-client/share/kivy-examples/canvas/scale.py

@@ -0,0 +1,37 @@
+'''
+Scaling Example
+================
+
+This example scales a button using PushMatrix and PopMatrix. It shows
+a static button with the words 'hello world', stretched about its centre by
+a factor of 1.5 horizontally and 5 vertically.
+'''
+
+
+from kivy.app import App
+from kivy.lang import Builder
+
+kv = '''
+FloatLayout:
+
+    Button:
+        text: 'hello world'
+        size_hint: None, None
+        pos_hint: {'center_x': .5, 'center_y': .5}
+        canvas.before:
+            PushMatrix
+            Scale:
+                x: 1.5
+                y: 5
+                origin: self.center
+        canvas.after:
+            PopMatrix
+'''
+
+
+class ScalingApp(App):
+    def build(self):
+        return Builder.load_string(kv)
+
+
+ScalingApp().run()

freechat-client/share/kivy-examples/canvas/stencil_canvas.py

@@ -0,0 +1,85 @@
+'''
+Stencil demo
+============
+
+This is a test of the stencil graphics instruction inside the stencil view
+widget. When you use a stencil, nothing will be drawn outside the bounding
+box. All the graphics will draw only in the stencil view.
+
+You can "draw" a stencil view by touch & draw. The touch down will set the
+position, and the drag will set the size.
+'''
+
+from kivy.app import App
+from kivy.core.window import Window
+from kivy.graphics import Color, Rectangle
+from kivy.uix.boxlayout import BoxLayout
+from kivy.uix.floatlayout import FloatLayout
+from kivy.uix.button import Button
+from kivy.uix.label import Label
+from kivy.uix.stencilview import StencilView
+from random import random as r
+from functools import partial
+
+
+class StencilTestWidget(StencilView):
+    '''Drag to define stencil area
+    '''
+
+    def on_touch_down(self, touch):
+        self.pos = touch.pos
+        self.size = (1, 1)
+
+    def on_touch_move(self, touch):
+        self.size = (touch.x - touch.ox, touch.y - touch.oy)
+
+
+class StencilCanvasApp(App):
+
+    def add_rects(self, label, wid, count, *largs):
+        label.text = str(int(label.text) + count)
+        with wid.canvas:
+            for x in range(count):
+                Color(r(), 1, 1, mode='hsv')
+                Rectangle(pos=(r() * wid.width + wid.x,
+                               r() * wid.height + wid.y), size=(10, 10))
+
+    def reset_stencil(self, wid, *largs):
+        wid.pos = (0, 0)
+        wid.size = Window.size
+
+    def reset_rects(self, label, wid, *largs):
+        label.text = '0'
+        wid.canvas.clear()
+
+    def build(self):
+        wid = StencilTestWidget(size_hint=(None, None), size=Window.size)
+
+        label = Label(text='0')
+
+        btn_add500 = Button(text='+ 200 rects')
+        btn_add500.bind(on_press=partial(self.add_rects, label, wid, 200))
+
+        btn_reset = Button(text='Reset Rectangles')
+        btn_reset.bind(on_press=partial(self.reset_rects, label, wid))
+
+        btn_stencil = Button(text='Reset Stencil')
+        btn_stencil.bind(on_press=partial(self.reset_stencil, wid))
+
+        layout = BoxLayout(size_hint=(1, None), height=50)
+        layout.add_widget(btn_add500)
+        layout.add_widget(btn_reset)
+        layout.add_widget(btn_stencil)
+        layout.add_widget(label)
+
+        root = BoxLayout(orientation='vertical')
+        rfl = FloatLayout()
+        rfl.add_widget(wid)
+        root.add_widget(rfl)
+        root.add_widget(layout)
+
+        return root
+
+
+if __name__ == '__main__':
+    StencilCanvasApp().run()

freechat-client/share/kivy-examples/canvas/tesselate.py

@@ -0,0 +1,146 @@
+'''
+Tesselate Demonstration
+=======================
+
+This demonstrates the experimental library for tesselating polygons. You
+should see a hollow square with some buttons below it. You can click and
+drag to create additional shapes, watching the number of vertexes and elements
+at the top of the screen. The 'debug' button toggles showing the mesh in
+different colors.
+'''
+
+
+from kivy.app import App
+from kivy.graphics import Mesh, Color
+from kivy.graphics.tesselator import Tesselator, WINDING_ODD, TYPE_POLYGONS
+from kivy.uix.floatlayout import FloatLayout
+from kivy.lang import Builder
+from kivy.logger import Logger
+
+Builder.load_string("""
+<ShapeBuilder>:
+    BoxLayout:
+        size_hint_y: None
+        height: "48dp"
+        spacing: "2dp"
+        padding: "2dp"
+
+        ToggleButton:
+            text: "Debug"
+            id: debug
+            on_release: root.build()
+        Button:
+            text: "New shape"
+            on_release: root.push_shape()
+        Button:
+            text: "Build"
+            on_release: root.build()
+        Button:
+            text: "Reset"
+            on_release: root.reset()
+
+    BoxLayout:
+        size_hint_y: None
+        height: "48dp"
+        top: root.top
+        spacing: "2dp"
+        padding: "2dp"
+        Label:
+            id: status
+            text: "Status"
+""")
+
+
+class ShapeBuilder(FloatLayout):
+    def __init__(self, **kwargs):
+        super(ShapeBuilder, self).__init__(**kwargs)
+        self.shapes = [
+            [100, 100, 300, 100, 300, 300, 100, 300],
+            [150, 150, 250, 150, 250, 250, 150, 250]
+        ]  # the 'hollow square' shape
+        self.shape = []
+        self.build()
+
+    def on_touch_down(self, touch):
+        if super(ShapeBuilder, self).on_touch_down(touch):
+            return True
+        Logger.info('tesselate: on_touch_down (%5.2f, %5.2f)' % touch.pos)
+        self.shape.extend(touch.pos)
+        self.build()
+        return True
+
+    def on_touch_move(self, touch):
+        if super(ShapeBuilder, self).on_touch_move(touch):
+            return True
+        Logger.info('tesselate: on_touch_move (%5.2f, %5.2f)' % touch.pos)
+        self.shape.extend(touch.pos)
+        self.build()
+        return True
+
+    def on_touch_up(self, touch):
+        if super(ShapeBuilder, self).on_touch_up(touch):
+            return True
+        Logger.info('tesselate: on_touch_up (%5.2f, %5.2f)' % touch.pos)
+        self.push_shape()
+        self.build()
+
+    def push_shape(self):
+        self.shapes.append(self.shape)
+        self.shape = []
+
+    def build(self):
+        tess = Tesselator()
+        count = 0
+        for shape in self.shapes:
+            if len(shape) >= 3:
+                tess.add_contour(shape)
+                count += 1
+        if self.shape and len(self.shape) >= 3:
+            tess.add_contour(self.shape)
+            count += 1
+        if not count:
+            return
+        ret = tess.tesselate(WINDING_ODD, TYPE_POLYGONS)
+        Logger.info('tesselate: build: tess.tesselate returns {}'.format(ret))
+        self.canvas.after.clear()
+
+        debug = self.ids.debug.state == "down"
+        if debug:
+            with self.canvas.after:
+                c = 0
+                for vertices, indices in tess.meshes:
+                    Color(c, 1, 1, mode="hsv")
+                    c += 0.3
+                    indices = [0]
+                    for i in range(1, len(vertices) // 4):
+                        if i > 0:
+                            indices.append(i)
+                        indices.append(i)
+                        indices.append(0)
+                        indices.append(i)
+                    indices.pop(-1)
+                    Mesh(vertices=vertices, indices=indices, mode="lines")
+        else:
+            with self.canvas.after:
+                Color(1, 1, 1, 1)
+                for vertices, indices in tess.meshes:
+                    Mesh(vertices=vertices, indices=indices,
+                         mode="triangle_fan")
+
+        self.ids.status.text = "Shapes: {} - Vertex: {} - Elements: {}".format(
+            count, tess.vertex_count, tess.element_count)
+
+    def reset(self):
+        self.shapes = []
+        self.shape = []
+        self.ids.status.text = "Shapes: {} - Vertex: {} - Elements: {}".format(
+            0, 0, 0)
+        self.canvas.after.clear()
+
+
+class TessApp(App):
+    def build(self):
+        return ShapeBuilder()
+
+
+TessApp().run()

freechat-client/share/kivy-examples/canvas/texture.py

@@ -0,0 +1,143 @@
+'''
+Texture Wrapping and Coordinates Example
+========================================
+
+This example changes texture properties and the properties
+of its containing rectangle. You should see some a multicolored
+texture with sliders to the left and below and buttons at the
+bottom of the screen. The image texture_example_image.png is
+rendered into the rectangle. Sliders change the number of copies of the
+texture (the tex_coords), the size of enclosing rectangle (the taw_height
+and taw_width) while the buttons change how the texture is rendered when more
+than one copy is in the rectangle (the
+texture_wrap).
+
+'''
+
+
+from kivy.uix.widget import Widget
+from kivy.properties import ObjectProperty, ListProperty, StringProperty
+from kivy.lang import Builder
+from kivy.clock import Clock
+from kivy.base import runTouchApp
+
+
+class TextureAccessibleWidget(Widget):
+    texture = ObjectProperty(None)
+    tex_coords = ListProperty([0, 0, 1, 0, 1, 1, 0, 1])
+    texture_wrap = StringProperty('clamp_to_edge')
+
+    def __init__(self, **kwargs):
+        super(TextureAccessibleWidget, self).__init__(**kwargs)
+        Clock.schedule_once(self.texture_init, 0)
+
+    def texture_init(self, *args):
+        self.texture = self.canvas.children[-1].texture
+
+    def on_texture_wrap(self, instance, value):
+        self.texture.wrap = value
+
+
+root = Builder.load_string('''
+<TextureAccessibleWidget>:
+    canvas:
+        Rectangle:
+            pos: self.pos
+            size: self.size
+            source: 'texture_example_image.png'
+            tex_coords: root.tex_coords
+
+<SliderWithValue@BoxLayout>:
+    min: 0.0
+    max: 1.0
+    value: slider.value
+    Slider:
+        id: slider
+        orientation: root.orientation
+        min: root.min
+        max: root.max
+        value: 1.0
+    Label:
+        size_hint: None, None
+        size: min(root.size), min(root.size)
+        text: str(slider.value)[:4]
+
+BoxLayout:
+    orientation: 'vertical'
+    BoxLayout:
+        SliderWithValue:
+            orientation: 'vertical'
+            size_hint_x: None
+            width: dp(40)
+            min: 0
+            max: 5
+            value: 1
+            on_value: taw.tex_coords[5] = self.value
+            on_value: taw.tex_coords[7] = self.value
+        SliderWithValue:
+            orientation: 'vertical'
+            size_hint_x: None
+            width: dp(40)
+            min: 0
+            max: taw_container.height
+            value: 0.5*taw_container.height
+            on_value: taw.height = self.value
+        AnchorLayout:
+            id: taw_container
+            anchor_x: 'left'
+            anchor_y: 'bottom'
+            TextureAccessibleWidget:
+                id: taw
+                size_hint: None, None
+    BoxLayout:
+        size_hint_y: None
+        height: dp(80)
+        BoxLayout:
+            orientation: 'vertical'
+            size_hint_x: None
+            width: dp(80)
+            Label:
+                text: 'size'
+                text_size: self.size
+                halign: 'right'
+                valign: 'middle'
+            Label:
+                text: 'tex_coords'
+                text_size: self.size
+                halign: 'left'
+                valign: 'middle'
+        BoxLayout:
+            orientation: 'vertical'
+            SliderWithValue:
+                min: 0
+                max: taw_container.width
+                value: 0.5*taw_container.width
+                on_value: taw.width = self.value
+            SliderWithValue:
+                min: 0.
+                max: 5.
+                value: 1.
+                on_value: taw.tex_coords[2] = self.value
+                on_value: taw.tex_coords[4] = self.value
+
+    BoxLayout:
+        size_hint_y: None
+        height: dp(50)
+        Label:
+            text: 'texture wrap:'
+            text_size: self.size
+            valign: 'middle'
+            halign: 'center'
+        Button:
+            text: 'clamp_to_edge'
+            on_press: taw.texture_wrap = 'clamp_to_edge'
+        Button:
+            text: 'repeat'
+            on_press: taw.texture_wrap = 'repeat'
+        Button:
+            text: 'mirrored_repeat'
+            on_press: taw.texture_wrap = 'mirrored_repeat'
+''')
+
+
+runTouchApp(root)

freechat-client/share/kivy-examples/container/kv/1.kv

@@ -0,0 +1,28 @@
+#:kivy 1.8.0
+#:import datetime datetime
+
+RootWidget:
+    # import container
+    container: container
+
+    # fill the container
+    BoxLayout:
+        id: container
+        orientation: 'vertical'
+        padding: 0
+        spacing: 3
+
+        Label:
+            text: 'screen-1'
+
+        BoxLayout:
+            orientation: 'horizontal'
+            padding: 0
+            spacing: 1
+            size_hint: 1, 0.1
+
+            # weiter button
+            Button:
+                size_hint: 0.2, 1
+                text: 'next'
+                on_release: app.next_screen('2')