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+{

+ "metadata": {

+  "name": "chapter-18.ipynb"

+ },

+ "nbformat": 3,

+ "nbformat_minor": 0,

+ "worksheets": [

+  {

+   "cells": [

+    {

+     "cell_type": "markdown",

+     "metadata": {},

+     "source": [

+      "<h1>Chapter 18: Graphics Under Windows<h1>"

+     ]

+    },

+    {

+     "cell_type": "markdown",

+     "metadata": {},

+     "source": [

+      "<h3>Hello Windows, Page number: 582<h3>"

+     ]

+    },

+    {

+     "cell_type": "code",

+     "collapsed": false,

+     "input": [

+      "'''Program to display a message \u201cHello Windows\u201d in different fonts'''\n",

+      "\n",

+      "from tkinter import *\n",

+      "\n",

+      "\n",

+      "class Example(Frame):\n",

+      "        def __init__(self, parent):\n",

+      "            Frame.__init__(self, parent)\n",

+      "\n",

+      "            self.display = Canvas(self, width=700, height=200)\n",

+      "            self.display.pack(side=\"top\", fill=\"both\", expand=True)\n",

+      "            self.display.create_text(10, 10, fill = \"blue\",text = \"Hello Windows\", font=\"Arial 20 italic\",\n",

+      "                                          anchor=\"nw\")\n",

+      "            self.display.create_text(10, 50, fill = \"blue\",text = \"Hello Windows\", font=\"TimesNewRoman 30 italic\",\n",

+      "                                          anchor=\"nw\")\n",

+      "            self.display.create_text(10, 100, fill = \"blue\",text = \"Hello Windows\", font=\"ComicSansMS 40 italic\",\n",

+      "                                          anchor=\"nw\")\n",

+      "\n",

+      "if __name__ == \"__main__\":\n",

+      "    root = Tk()\n",

+      "    root.title(\"Text\")\n",

+      "    Frame = Example(parent=root)\n",

+      "    Frame.pack(side=\"top\", fill=\"both\", expand=True)\n",

+      "    root.mainloop()\n"

+     ],

+     "language": "python",

+     "metadata": {},

+     "outputs": []

+    },

+    {

+     "cell_type": "markdown",

+     "metadata": {},

+     "source": [

+      "<h3>Drawing Shapes, Page number: 587<h3>"

+     ]

+    },

+    {

+     "cell_type": "code",

+     "collapsed": false,

+     "input": [

+      "'''Program that displays different shapes in a window'''\n",

+      "\n",

+      "from tkinter import *\n",

+      "\n",

+      "\n",

+      "top = Tk()\n",

+      "top.title(\"Shapes\")\n",

+      "C = Canvas(top, height=500, width=500)\n",

+      "rcoor = 10,20,200,100\n",

+      "rect = C.create_rectangle(rcoor,fill=\"blue\")#rectangle\n",

+      "ecoor = 10,280,200,380\n",

+      "ellipse = C.create_oval(ecoor,fill = \"blue\")#ellipse\n",

+      "picoor = 250,0,350,100\n",

+      "pie = C.create_arc(picoor, start=300, extent=100, fill=\"blue\")#pie\n",

+      "pocoor = 250, 150, 250, 300, 300, 350, 400, 300, 320, 190\n",

+      "polygon = C.create_polygon(pocoor,fill=\"blue\")#polygon\n",

+      "#roundedrectangle\n",

+      "c1= C.create_arc(155,115,195,150,start=320, extent=80, fill=\"blue\",outline=\"blue\")\n",

+      "c2= C.create_arc(155,208,195,243,start=320, extent=80, fill=\"blue\",outline=\"blue\")\n",

+      "c3= C.create_arc(25,118,60,153,start=100, extent=150, fill=\"blue\",outline=\"blue\")\n",

+      "c4= C.create_arc(25,207,60,242,start=100, extent=150, fill=\"blue\",outline=\"blue\")\n",

+      "roundrect = C.create_rectangle(30,120,190,240,fill=\"blue\",outline=\"blue\")\n",

+      "C.pack()\n",

+      "top.mainloop()"

+     ],

+     "language": "python",

+     "metadata": {},

+     "outputs": []

+    },

+    {

+     "cell_type": "markdown",

+     "metadata": {},

+     "source": [

+      "<h3>Pen Styles, Page number: 590<h3>"

+     ]

+    },

+    {

+     "cell_type": "code",

+     "collapsed": false,

+     "input": [

+      "'''Program to create pens of different style, color and\n",

+      "thickness to draw'''\n",

+      "\n",

+      "from tkinter import *\n",

+      "\n",

+      "\n",

+      "top = Tk()\n",

+      "top.title(\"Pen styles\")\n",

+      "C = Canvas(top, height=100, width=500)\n",

+      "l1 = C.create_line(0,10,500,10,fill=\"red\",dash=(5)) #dashed line\n",

+      "l2 = C.create_line(0,30,500,30,fill=\"red\",dash=(1)) #dotted line\n",

+      "l3 = C.create_line(0,50,500,50,fill=\"red\",dash=(5,1,1,1)) #dash dot\n",

+      "l4 = C.create_line(0,70,500,70,fill=\"red\",dash=(5,1,1,1,1)) #dash dot dot\n",

+      "l5 = C.create_line(0,90,500,90,fill=\"red\",width=4) #solid line\n",

+      "C.pack()\n",

+      "top.mainloop()\n"

+     ],

+     "language": "python",

+     "metadata": {},

+     "outputs": []

+    },

+    {

+     "cell_type": "markdown",

+     "metadata": {},

+     "source": [

+      "<h3>Types of Brushes, Page number: 592<h3>"

+     ]

+    },

+    {

+     "cell_type": "code",

+     "collapsed": false,

+     "input": [

+      "import sys\n",

+      "from PyQt4 import QtGui, QtCore\n",

+      "\n",

+      "\n",

+      "class Example(QtGui.QWidget):\n",

+      "    \n",

+      "    def __init__(self):\n",

+      "        super(Example, self).__init__()\n",

+      "        \n",

+      "        self.initUI()\n",

+      "        \n",

+      "    def initUI(self):      \n",

+      "\n",

+      "        self.setGeometry(300, 300, 355, 280)\n",

+      "        self.setWindowTitle('Brush Styles')\n",

+      "        self.show()\n",

+      "\n",

+      "    def paintEvent(self, e):\n",

+      "\n",

+      "        qp = QtGui.QPainter()\n",

+      "        qp.begin(self)\n",

+      "        self.drawBrushes(qp)\n",

+      "        qp.end()\n",

+      "        \n",

+      "    def drawBrushes(self, qp):\n",

+      "      \n",

+      "        brush = QtGui.QBrush(QtCore.Qt.SolidPattern)\n",

+      "        qp.setBrush(brush)\n",

+      "        qp.drawRect(10, 15, 90, 60)\n",

+      "\n",

+      "        brush.setStyle(QtCore.Qt.CrossPattern)\n",

+      "        qp.setBrush(brush)\n",

+      "        qp.drawRect(130, 15, 90, 60)\n",

+      "\n",

+      "       \n",

+      "        image = QtGui.QImage(\"C:/Users/Public/Pictures/Sample Pictures/Chrysanthemum.jpg\")\n",

+      "        brush.setTextureImage (image)\n",

+      "        qp.setBrush(brush)\n",

+      "        qp.drawRect(250, 15, 90, 60)\n",

+      "\n",

+      "       \n",

+      "              \n",

+      "        \n",

+      "def main():\n",

+      "    \n",

+      "    app = QtGui.QApplication(sys.argv)\n",

+      "    ex = Example()\n",

+      "    sys.exit(app.exec_())\n",

+      "\n",

+      "\n",

+      "if __name__ == '__main__':\n",

+      "    main()\n"

+     ],

+     "language": "python",

+     "metadata": {},

+     "outputs": []

+    },

+    {

+     "cell_type": "markdown",

+     "metadata": {},

+     "source": [

+      "<h3>Displaying a Bitmap, Page number: 605<h3>"

+     ]

+    },

+    {

+     "cell_type": "code",

+     "collapsed": false,

+     "input": [

+      "'''Program to display a image in a window.'''\n",

+      "\n",

+      "from tkinter import *\n",

+      "\n",

+      "\n",

+      "top = Tk()\n",

+      "top.title(\"Pen styles\")\n",

+      "C = Canvas(top, height=300, width=500)\n",

+      "filename = PhotoImage(file = \"C:/Users/Akshatha M/Desktop/dialog1.gif\")\n",

+      "image = C.create_image(50, 50, anchor=NE, image=filename)\n",

+      "C.pack()\n",

+      "top.mainloop()\n"

+     ],

+     "language": "python",

+     "metadata": {},

+     "outputs": []

+    },

+    {

+     "cell_type": "markdown",

+     "metadata": {},

+     "source": [

+      "<h3>Animation at Work, Page number: 608<h3>"

+     ]

+    },

+    {

+     "cell_type": "code",

+     "collapsed": false,

+     "input": [

+      "'''Program to illustrate a animation of a ball bouncing off a window '''\n",

+      "from visual import *\n",

+      "\n",

+      "floor = box(length=4, height=0.5, width=4, color=color.blue)\n",

+      "\n",

+      "ball = sphere(pos=(0,4,0), color=color.red)\n",

+      "ball.velocity = vector(0,-1,0)\n",

+      "\n",

+      "dt = 0.01\n",

+      "while 1:\n",

+      "    rate(100)\n",

+      "    ball.pos = ball.pos + ball.velocity*dt\n",

+      "    if ball.y < 1:\n",

+      "        ball.velocity.y = -ball.velocity.y\n",

+      "    else:\n",

+      "        ball.velocity.y = ball.velocity.y - 9.8*dt\n"

+     ],

+     "language": "python",

+     "metadata": {},

+     "outputs": []

+    }

+   ],

+   "metadata": {}

+  }

+ ]

+}
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