|
1 /* |
|
2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: |
|
15 * |
|
16 */ |
|
17 |
|
18 #include <QGraphicsLinearLayout> |
|
19 #include <QParallelAnimationGroup> |
|
20 #include <QPropertyAnimation> |
|
21 #include <QGraphicsDropShadowEffect> |
|
22 #include <QGraphicsSceneResizeEvent> |
|
23 #include <QGesture> |
|
24 #include <QGraphicsScene> |
|
25 |
|
26 |
|
27 #include <HbInstantFeedback> |
|
28 #include <HbTouchArea> |
|
29 |
|
30 #include "hswidgethostvisual.h" |
|
31 #include "hswidgethost.h" |
|
32 #include "hsscene.h" |
|
33 #include "hsconfiguration.h" |
|
34 #include "hswidgettoucharea.h" |
|
35 |
|
36 |
|
37 /*! |
|
38 \class HsWidgetHostVisual |
|
39 \ingroup group_hsdomainmodel |
|
40 \brief Each widget is controlled by the home screen framework through a widget host. |
|
41 */ |
|
42 |
|
43 /*! |
|
44 Constructs a new widget host with given \a databaseId and |
|
45 \a parent item. |
|
46 */ |
|
47 HsWidgetHostVisual::HsWidgetHostVisual(QGraphicsItem *parent) |
|
48 : HbWidget(parent),mWidget(0) |
|
49 |
|
50 { |
|
51 setFlag(QGraphicsItem::ItemClipsChildrenToShape); |
|
52 setFlag(QGraphicsItem::ItemHasNoContents); |
|
53 |
|
54 grabGesture(Qt::TapGesture); |
|
55 grabGesture(Qt::TapAndHoldGesture); |
|
56 grabGesture(Qt::PanGesture); |
|
57 grabGesture(Qt::PinchGesture); |
|
58 grabGesture(Qt::SwipeGesture); |
|
59 grabGesture(Qt::CustomGesture); |
|
60 |
|
61 setupTouchArea(); |
|
62 setupEffects(); |
|
63 |
|
64 setMinimumSize(HSCONFIGURATION_GET(minimumWidgetSizeInPixels)); |
|
65 setMaximumSize(HSCONFIGURATION_GET(maximumWidgetSizeInPixels)); |
|
66 |
|
67 } |
|
68 |
|
69 /*! |
|
70 Destructor. |
|
71 */ |
|
72 HsWidgetHostVisual::~HsWidgetHostVisual() |
|
73 { |
|
74 } |
|
75 |
|
76 |
|
77 /*! |
|
78 Reimplemented from QGraphicsItem. Returns the shape of the |
|
79 this widget host. The shape is computed based on the contained |
|
80 widget. |
|
81 */ |
|
82 QPainterPath HsWidgetHostVisual::shape() const |
|
83 { |
|
84 QPainterPath path; |
|
85 |
|
86 if (mWidget) { |
|
87 QRectF currRect = rect(); |
|
88 path = mWidget->shape(); |
|
89 |
|
90 QRectF pathRect(path.boundingRect()); |
|
91 |
|
92 if (pathRect.width() > currRect.width() |
|
93 || pathRect.height() > currRect.height()) { |
|
94 QPainterPath newPath(currRect.topLeft()); |
|
95 newPath.addRect(currRect); |
|
96 path = path.intersected(newPath); |
|
97 } |
|
98 } |
|
99 return path; |
|
100 } |
|
101 void HsWidgetHostVisual::setWidget(QObject *widget) |
|
102 { |
|
103 mWidget = qobject_cast<QGraphicsWidget *>(widget); |
|
104 if (mWidget) { |
|
105 mWidget->installEventFilter(this); |
|
106 mWidget->setParentItem(this); |
|
107 setNewSize(mWidget->size()); |
|
108 } |
|
109 } |
|
110 |
|
111 void HsWidgetHostVisual::setVisualModel(HsWidgetHost *model) |
|
112 { |
|
113 mVisualModel = model; |
|
114 } |
|
115 HsWidgetHost *HsWidgetHostVisual::visualModel() const |
|
116 { |
|
117 return mVisualModel; |
|
118 } |
|
119 /*! |
|
120 Starts the drag effect. |
|
121 */ |
|
122 void HsWidgetHostVisual::startDragEffect() |
|
123 { |
|
124 /* TODO: Uncomment after the Qt bug has been fixed. |
|
125 QGraphicsDropShadowEffect *effect = |
|
126 static_cast<QGraphicsDropShadowEffect *>(graphicsEffect()); |
|
127 */ |
|
128 HbInstantFeedback::play(HbFeedback::ItemPick); |
|
129 |
|
130 setTransformOriginPoint(rect().center()); |
|
131 |
|
132 QParallelAnimationGroup *animationGroup = new QParallelAnimationGroup(); |
|
133 |
|
134 QPropertyAnimation *animation = new QPropertyAnimation(this, "scale"); |
|
135 animation->setDuration(HSCONFIGURATION_GET(widgetDragEffectDuration)); |
|
136 animation->setEndValue(1.1); |
|
137 animationGroup->addAnimation(animation); |
|
138 |
|
139 /* TODO: Uncomment after the Qt bug has been fixed. |
|
140 animation = new QPropertyAnimation(effect, "offset"); |
|
141 animation->setDuration(200); |
|
142 animation->setEndValue(QPointF(8 ,8)); |
|
143 animationGroup->addAnimation(animation); |
|
144 */ |
|
145 |
|
146 animationGroup->start(QAbstractAnimation::DeleteWhenStopped); |
|
147 } |
|
148 |
|
149 /*! |
|
150 Starts the drop effect. |
|
151 */ |
|
152 void HsWidgetHostVisual::startDropEffect() |
|
153 { |
|
154 /* TODO: Uncomment after the Qt bug has been fixed. |
|
155 QGraphicsDropShadowEffect *effect = |
|
156 static_cast<QGraphicsDropShadowEffect *>(graphicsEffect()); |
|
157 */ |
|
158 HbInstantFeedback::play(HbFeedback::ItemDrop); |
|
159 |
|
160 QParallelAnimationGroup *animationGroup = new QParallelAnimationGroup; |
|
161 |
|
162 QPropertyAnimation *animation = new QPropertyAnimation(this, "scale"); |
|
163 animation->setDuration(HSCONFIGURATION_GET(widgetDropEffectDuration)); |
|
164 animation->setEndValue(1); |
|
165 animationGroup->addAnimation(animation); |
|
166 |
|
167 /* TODO: Uncomment after the Qt bug has been fixed. |
|
168 animation = new QPropertyAnimation(effect, "offset"); |
|
169 animation->setDuration(200); |
|
170 animation->setEndValue(QPointF(3, 3)); |
|
171 animationGroup->addAnimation(animation); |
|
172 */ |
|
173 |
|
174 animationGroup->start(QAbstractAnimation::DeleteWhenStopped); |
|
175 } |
|
176 /*! |
|
177 \fn HsWidgetHost::resized() |
|
178 Notifies the home screen framework that this widget |
|
179 host has resized itself. |
|
180 */ |
|
181 |
|
182 /*! |
|
183 Reimplemented from QObject for monitoring changes in |
|
184 contained widget's size. |
|
185 */ |
|
186 bool HsWidgetHostVisual::eventFilter(QObject *watched, QEvent *event) |
|
187 { |
|
188 if (event->type() == QEvent::GraphicsSceneResize ) { |
|
189 QGraphicsSceneResizeEvent *resizeEvent = |
|
190 static_cast<QGraphicsSceneResizeEvent *>(event); |
|
191 setNewSize(resizeEvent->newSize()); |
|
192 emit resized(); |
|
193 } |
|
194 return HbWidget::eventFilter(watched, event); |
|
195 } |
|
196 |
|
197 /*! |
|
198 Reimplemented from HbWidget for pan gesture handling. |
|
199 */ |
|
200 void HsWidgetHostVisual::gestureEvent(QGestureEvent *event) |
|
201 { |
|
202 HsScene *scene = HsScene::instance(); |
|
203 QGesture *gesture = event->gesture(Qt::PanGesture); |
|
204 if (gesture) { |
|
205 switch (gesture->state()) { |
|
206 case Qt::GestureStarted: |
|
207 grabMouse(); |
|
208 emit scene->pagePanStarted(event); |
|
209 break; |
|
210 case Qt::GestureUpdated: |
|
211 emit scene->pagePanUpdated(event); |
|
212 break; |
|
213 case Qt::GestureFinished: |
|
214 case Qt::GestureCanceled: |
|
215 ungrabMouse(); |
|
216 emit scene->pagePanFinished(event); |
|
217 break; |
|
218 default: |
|
219 break; |
|
220 } |
|
221 } |
|
222 } |
|
223 |
|
224 /*! |
|
225 \fn HsWidgetHostVisual::mousePressEvent(QGraphicsSceneMouseEvent *) |
|
226 Reimplemented from QGraphicsItem for eating all mouse presses. |
|
227 */ |
|
228 |
|
229 /*! |
|
230 Configures the touch are for this widget host. |
|
231 */ |
|
232 void HsWidgetHostVisual::setupTouchArea() |
|
233 { |
|
234 mTouchArea = new HsWidgetTouchArea(this); |
|
235 mTouchArea->setZValue(1); |
|
236 } |
|
237 |
|
238 /*! |
|
239 Configures the effects for this widget host. |
|
240 */ |
|
241 void HsWidgetHostVisual::setupEffects() |
|
242 { |
|
243 /* TODO: Uncomment after the Qt bug has been fixed. |
|
244 QGraphicsDropShadowEffect *effect = |
|
245 new QGraphicsDropShadowEffect(this); |
|
246 effect->setColor(QColor(0, 0, 0, 150)); |
|
247 effect->setBlurRadius(5); |
|
248 effect->setOffset(3); |
|
249 setGraphicsEffect(effect); |
|
250 */ |
|
251 } |
|
252 |
|
253 |
|
254 /*! |
|
255 Resizes this widget host to the given \a size. |
|
256 */ |
|
257 void HsWidgetHostVisual::setNewSize(const QSizeF &size) |
|
258 { |
|
259 mTouchArea->resize(size); |
|
260 resize(size); |
|
261 setPreferredSize(size); |
|
262 } |
|
263 |