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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the examples of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #include <QtGui> |
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43 |
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44 #include "analogclock.h" |
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45 |
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46 //! [0] //! [1] |
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47 AnalogClock::AnalogClock(QWidget *parent) |
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48 //! [0] //! [2] |
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49 : QWidget(parent) |
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50 //! [2] //! [3] |
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51 { |
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52 //! [3] //! [4] |
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53 QTimer *timer = new QTimer(this); |
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54 //! [4] //! [5] |
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55 connect(timer, SIGNAL(timeout()), this, SLOT(update())); |
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56 //! [5] //! [6] |
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57 timer->start(1000); |
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58 //! [6] |
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59 |
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60 setWindowTitle(tr("Analog Clock")); |
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61 resize(200, 200); |
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62 //! [7] |
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63 } |
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64 //! [1] //! [7] |
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65 |
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66 //! [8] //! [9] |
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67 void AnalogClock::paintEvent(QPaintEvent *) |
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68 //! [8] //! [10] |
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69 { |
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70 static const QPoint hourHand[3] = { |
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71 QPoint(7, 8), |
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72 QPoint(-7, 8), |
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73 QPoint(0, -40) |
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74 }; |
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75 static const QPoint minuteHand[3] = { |
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76 QPoint(7, 8), |
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77 QPoint(-7, 8), |
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78 QPoint(0, -70) |
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79 }; |
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80 |
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81 QColor hourColor(127, 0, 127); |
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82 QColor minuteColor(0, 127, 127, 191); |
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83 |
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84 int side = qMin(width(), height()); |
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85 QTime time = QTime::currentTime(); |
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86 //! [10] |
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87 |
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88 //! [11] |
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89 QPainter painter(this); |
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90 //! [11] //! [12] |
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91 painter.setRenderHint(QPainter::Antialiasing); |
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92 //! [12] //! [13] |
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93 painter.translate(width() / 2, height() / 2); |
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94 //! [13] //! [14] |
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95 painter.scale(side / 200.0, side / 200.0); |
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96 //! [9] //! [14] |
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97 |
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98 //! [15] |
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99 painter.setPen(Qt::NoPen); |
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100 //! [15] //! [16] |
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101 painter.setBrush(hourColor); |
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102 //! [16] |
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103 |
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104 //! [17] //! [18] |
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105 painter.save(); |
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106 //! [17] //! [19] |
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107 painter.rotate(30.0 * ((time.hour() + time.minute() / 60.0))); |
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108 painter.drawConvexPolygon(hourHand, 3); |
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109 painter.restore(); |
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110 //! [18] //! [19] |
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111 |
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112 //! [20] |
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113 painter.setPen(hourColor); |
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114 //! [20] //! [21] |
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115 |
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116 for (int i = 0; i < 12; ++i) { |
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117 painter.drawLine(88, 0, 96, 0); |
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118 painter.rotate(30.0); |
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119 } |
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120 //! [21] |
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121 |
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122 //! [22] |
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123 painter.setPen(Qt::NoPen); |
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124 //! [22] //! [23] |
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125 painter.setBrush(minuteColor); |
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126 |
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127 //! [24] |
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128 painter.save(); |
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129 painter.rotate(6.0 * (time.minute() + time.second() / 60.0)); |
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130 painter.drawConvexPolygon(minuteHand, 3); |
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131 painter.restore(); |
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132 //! [23] //! [24] |
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133 |
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134 //! [25] |
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135 painter.setPen(minuteColor); |
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136 //! [25] //! [26] |
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137 |
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138 //! [27] |
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139 for (int j = 0; j < 60; ++j) { |
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140 if ((j % 5) != 0) |
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141 painter.drawLine(92, 0, 96, 0); |
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142 painter.rotate(6.0); |
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143 } |
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144 //! [27] |
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145 } |
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146 //! [26] |