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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 demonstration applications 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 "demoitemanimation.h" |
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43 #include "demoitem.h" |
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44 #include "colors.h" |
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45 |
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46 DemoItemAnimation::DemoItemAnimation(DemoItem *item, INOROUT inOrOut) |
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47 { |
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48 this->opacityAt0 = 1.0; |
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49 this->opacityAt1 = 1.0; |
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50 this->startDelay = 0; |
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51 this->inOrOut = inOrOut; |
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52 this->hideOnFinished = false; |
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53 this->forcePlay = false; |
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54 this->timeline = new QTimeLine(5000); |
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55 this->timeline->setFrameRange(0, 2000); |
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56 this->timeline->setUpdateInterval(int(1000.0/Colors::fps)); |
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57 this->moveOnPlay = false; |
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58 setTimeLine(this->timeline); |
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59 setItem(item); |
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60 } |
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61 |
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62 DemoItemAnimation::~DemoItemAnimation() |
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63 { |
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64 // Do not delete demoitem. It is not |
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65 // owned by an animation |
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66 delete this->timeline; |
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67 } |
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68 |
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69 void DemoItemAnimation::prepare() |
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70 { |
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71 this->demoItem()->prepare(); |
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72 } |
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73 |
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74 void DemoItemAnimation::setStartPos(const QPointF &pos){ |
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75 this->startPos = pos; |
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76 } |
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77 |
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78 void DemoItemAnimation::setDuration(int duration) |
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79 { |
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80 duration = int(duration * Colors::animSpeed); |
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81 this->timeline->setDuration(duration); |
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82 this->moveOnPlay = true; |
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83 } |
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84 |
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85 void DemoItemAnimation::setCurrentTime(int ms) |
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86 { |
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87 this->timeline->setCurrentTime(ms); |
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88 } |
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89 |
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90 bool DemoItemAnimation::notOwnerOfItem() |
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91 { |
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92 return this != demoItem()->currentAnimation; |
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93 } |
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94 |
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95 void DemoItemAnimation::play(bool fromStart, bool force) |
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96 { |
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97 this->fromStart = fromStart; |
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98 this->forcePlay = force; |
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99 |
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100 QPointF currPos = this->demoItem()->pos(); |
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101 |
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102 // If the item that this animation controls in currently under the |
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103 // control of another animation, stop that animation first |
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104 if (this->demoItem()->currentAnimation) |
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105 this->demoItem()->currentAnimation->timeline->stop(); |
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106 this->demoItem()->currentAnimation = this; |
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107 this->timeline->stop(); |
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108 |
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109 if (Colors::noAnimations && !this->forcePlay){ |
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110 this->timeline->setCurrentTime(1); |
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111 this->demoItem()->setPos(this->posAt(1)); |
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112 } |
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113 else{ |
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114 if (this->demoItem()->isVisible()) |
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115 // If the item is already visible, start the animation from |
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116 // the items current position rather than from start. |
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117 this->setPosAt(0.0, currPos); |
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118 else |
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119 this->setPosAt(0.0, this->startPos); |
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120 |
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121 if (this->fromStart){ |
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122 this->timeline->setCurrentTime(0); |
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123 this->demoItem()->setPos(this->posAt(0)); |
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124 } |
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125 } |
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126 |
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127 if (this->inOrOut == ANIM_IN) |
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128 this->demoItem()->setRecursiveVisible(true); |
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129 |
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130 if (this->startDelay){ |
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131 QTimer::singleShot(this->startDelay, this, SLOT(playWithoutDelay())); |
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132 return; |
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133 } |
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134 else |
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135 this->playWithoutDelay(); |
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136 } |
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137 |
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138 void DemoItemAnimation::playWithoutDelay() |
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139 { |
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140 if (this->moveOnPlay && !(Colors::noAnimations && !this->forcePlay)) |
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141 this->timeline->start(); |
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142 this->demoItem()->animationStarted(this->inOrOut); |
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143 } |
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144 |
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145 void DemoItemAnimation::stop(bool reset) |
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146 { |
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147 this->timeline->stop(); |
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148 if (reset) |
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149 this->demoItem()->setPos(this->posAt(0)); |
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150 if (this->hideOnFinished && !this->moveOnPlay) |
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151 this->demoItem()->setRecursiveVisible(false); |
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152 this->demoItem()->animationStopped(this->inOrOut); |
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153 } |
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154 |
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155 void DemoItemAnimation::setRepeat(int nr) |
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156 { |
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157 this->timeline->setLoopCount(nr); |
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158 } |
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159 |
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160 void DemoItemAnimation::playReverse() |
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161 { |
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162 } |
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163 |
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164 bool DemoItemAnimation::running() |
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165 { |
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166 return (this->timeLine()->state() == QTimeLine::Running); |
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167 } |
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168 |
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169 bool DemoItemAnimation::runningOrItemLocked() |
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170 { |
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171 return (this->running() || this->demoItem()->locked); |
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172 } |
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173 |
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174 void DemoItemAnimation::lockItem(bool state) |
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175 { |
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176 this->demoItem()->locked = state; |
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177 } |
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178 |
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179 DemoItem *DemoItemAnimation::demoItem() |
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180 { |
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181 return (DemoItem *) this->item(); |
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182 } |
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183 |
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184 void DemoItemAnimation::setOpacityAt0(qreal opacity) |
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185 { |
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186 this->opacityAt0 = opacity; |
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187 } |
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188 |
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189 void DemoItemAnimation::setOpacityAt1(qreal opacity) |
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190 { |
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191 this->opacityAt1 = opacity; |
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192 } |
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193 |
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194 void DemoItemAnimation::setOpacity(qreal step) |
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195 { |
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196 DemoItem *demoItem = (DemoItem *) item(); |
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197 demoItem->opacity = this->opacityAt0 + step * step * step * (this->opacityAt1 - this->opacityAt0); |
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198 } |
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199 |
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200 void DemoItemAnimation::afterAnimationStep(qreal step) |
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201 { |
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202 if (step == 1.0f){ |
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203 if (this->timeline->loopCount() > 0){ |
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204 // animation finished. |
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205 if (this->hideOnFinished) |
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206 this->demoItem()->setRecursiveVisible(false); |
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207 this->demoItem()->animationStopped(this->inOrOut); |
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208 } |
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209 } else if (Colors::noAnimations && !this->forcePlay){ |
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210 // The animation is not at end, but |
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211 // the animations should not play, so go to end. |
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212 this->setStep(1.0f); // will make this method being called recursive. |
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213 } |
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214 } |
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215 |
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216 |
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217 |
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218 |
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219 |