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Clone from http://code.qt.io/qt/qtcharts.git

barchart animation mechanics working. still some todo
sauimone -
r681:223051b363f0
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@@ -3,7 +3,9
3 3 #include <QParallelAnimationGroup>
4 4 #include <QTimer>
5 5
6 Q_DECLARE_METATYPE(QVector<QSizeF>)
6 Q_DECLARE_METATYPE(QVector<QRectF>)
7 //Q_DECLARE_METATYPE(BarLayout) // TODO?
8
7 9
8 10 QTCOMMERCIALCHART_BEGIN_NAMESPACE
9 11
@@ -17,31 +19,35 BarAnimation::~BarAnimation()
17 19 {
18 20 }
19 21
20 void BarAnimation::updateValues(const BarLayout& /*layout*/)
22 void BarAnimation::updateValues(const QVector<QRectF>& layout)
21 23 {
22 // TODO:
23 qDebug() << "BarAnimation::updateValues";
24 // TODO?:
25 // qDebug() << "BarAnimation::updateValues" << layout.count();
24 26 }
25 27
26 28
27 29 QVariant BarAnimation::interpolated(const QVariant &from, const QVariant &to, qreal progress) const
28 30 {
29 QVector<QSizeF> startVector = qVariantValue<QVector<QSizeF> > (from);
30 QVector<QSizeF> endVector = qVariantValue<QVector<QSizeF> > (to);
31 QVector<QSizeF> result;
31 QVector<QRectF> startVector = qVariantValue<QVector<QRectF> > (from);
32 QVector<QRectF> endVector = qVariantValue<QVector<QRectF> > (to);
33 QVector<QRectF> result;
32 34
33 35 Q_ASSERT(startVector.count() == endVector.count()) ;
34 36
35 37 for(int i =0 ;i< startVector.count();i++){
36 QSizeF value = startVector[i] + ((endVector[i]- endVector[i]) * progress);
37 result << value;
38 //QRectF value = startVector[i] + ((endVector[i] - startVector[i]) * progress);
39 QPointF topLeft = startVector[i].topLeft() + ((endVector[i].topLeft() - startVector[i].topLeft()) * progress);
40 QSizeF size = startVector[i].size() + ((endVector[i].size() - startVector[i].size()) * progress);
41 QRectF value(topLeft,size);
42 result << value;
38 43 }
39 44 return qVariantFromValue(result);
40 45 }
41 46
42 void BarAnimation::updateCurrentValue(const QVariant &)
47 void BarAnimation::updateCurrentValue(const QVariant &value)
43 48 {
44 // TODO?
49 QVector<QRectF> layout = qVariantValue<QVector<QRectF> >(value);
50 m_item->setLayout(layout);
45 51 }
46 52
47 53 #include "moc_baranimation_p.cpp"
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@@ -18,7 +18,7 public:
18 18 BarAnimation(BarChartItem *item);
19 19 ~BarAnimation();
20 20
21 void updateValues(const BarLayout& layout);
21 void updateValues(const QVector<QRectF>& layout);
22 22
23 23 public: // from QVariantAnimation
24 24 virtual QVariant interpolated (const QVariant & from, const QVariant & to, qreal progress ) const;
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@@ -13,6 +13,7
13 13
14 14 Q_DECLARE_METATYPE(QVector<QPointF>)
15 15 Q_DECLARE_METATYPE(QVector<qreal>)
16 Q_DECLARE_METATYPE(QVector<QRectF>)
16 17
17 18 QTCOMMERCIALCHART_BEGIN_NAMESPACE
18 19
@@ -267,12 +268,16 void ChartAnimator::updateLayout(PieChartItem* item, QPieSlice *slice, const Pie
267 268 animation->updateValue(slice, sliceData);
268 269 }
269 270
270 void ChartAnimator::updateLayout(BarChartItem* item, const BarLayout &layout)
271 void ChartAnimator::updateLayout(BarChartItem* item, const QVector<QRectF> &oldLayout, const QVector<QRectF> &newLayout)
271 272 {
272 273 qDebug() << "ChartAnimator::updateLayout";
273 274 BarAnimation* animation = static_cast<BarAnimation*>(m_animations.value(item));
274 275 Q_ASSERT(animation);
275 animation->updateValues(layout);
276 // animation->updateValues(layout);
277 animation->setDuration(duration);
278 animation->setKeyValueAt(0.0, qVariantFromValue(oldLayout));
279 animation->setKeyValueAt(1.0, qVariantFromValue(newLayout));
280 QTimer::singleShot(0,animation,SLOT(start()));
276 281 }
277 282
278 283
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@@ -43,7 +43,7 public:
43 43 void updateLayout(PieChartItem* item, const PieLayout &layout);
44 44 void updateLayout(PieChartItem* item, QPieSlice *slice, const PieSliceData &sliceData);
45 45
46 void updateLayout(BarChartItem* item, const BarLayout &layout);
46 void updateLayout(BarChartItem* item, const QVector<QRectF> &oldLayout, const QVector<QRectF> &newLayout);
47 47
48 48 void setState(State state,const QPointF& point = QPointF());
49 49
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@@ -20,7 +20,7 BarChartItem::BarChartItem(QBarSeries *series, ChartPresenter *presenter) :
20 20 mSeries(series)
21 21 {
22 22 connect(series,SIGNAL(showToolTip(QPoint,QString)),this,SLOT(showToolTip(QPoint,QString)));
23 connect(series, SIGNAL(updatedBars()), this, SLOT(layoutChanged()));
23 connect(series, SIGNAL(updatedBars()), this, SLOT(handleLayoutChanged()));
24 24 //TODO: connect(series,SIGNAL("position or size has changed"), this, SLOT(handleLayoutChanged()));
25 25 connect(series, SIGNAL(restructuredBar(int)), this, SLOT(handleModelChanged(int)));
26 26 setZValue(ChartPresenter::BarSeriesZValue);
@@ -59,6 +59,7 void BarChartItem::dataChanged()
59 59
60 60 mBars.clear();
61 61 mFloatingValues.clear();
62 mLayout.clear();
62 63
63 64 // Create new graphic items for bars
64 65 for (int c=0; c<mSeries->categoryCount(); c++) {
@@ -72,6 +73,7 void BarChartItem::dataChanged()
72 73 connect(bar,SIGNAL(rightClicked(QString)),set,SIGNAL(rightClicked(QString)));
73 74 connect(bar,SIGNAL(hoverEntered(QPoint)),set,SLOT(barHoverEnterEvent(QPoint)));
74 75 connect(bar,SIGNAL(hoverLeaved()),set,SLOT(barHoverLeaveEvent()));
76 mLayout.append(QRectF(0,0,0,0));
75 77 }
76 78 }
77 79
@@ -86,9 +88,11 void BarChartItem::dataChanged()
86 88 }
87 89 }
88 90 }
89
91 /*
90 92 void BarChartItem::layoutChanged()
91 93 {
94 qDebug() << "Deprecated BarChartItem::layoutChanged called. aborting";
95 return;
92 96 // Scale bars to new layout
93 97 // Layout for bars:
94 98 if (mSeries->barsetCount() <= 0) {
@@ -118,6 +122,8 void BarChartItem::layoutChanged()
118 122 qreal categoryWidth = width/categoryCount;
119 123 qreal barWidth = categoryWidth / (setCount+1);
120 124
125 BarLayout layout;
126
121 127 int itemIndex(0);
122 128 for (int category=0; category < categoryCount; category++) {
123 129 qreal xPos = categoryWidth * category + barWidth/2;
@@ -126,11 +132,18 void BarChartItem::layoutChanged()
126 132 qreal barHeight = mSeries->valueAt(set,category) * scale;
127 133 Bar* bar = mBars.at(itemIndex);
128 134
135 QRectF rect(xPos,yPos-barHeight,mBarWidth,barHeight);
136 layout.insert(bar,rect);
129 137 // TODO: width settable per bar?
130 138 bar->setRect(xPos, yPos-barHeight,barWidth, barHeight);
131 139 bar->setPen(mSeries->barsetAt(set)->pen());
132 140 bar->setBrush(mSeries->barsetAt(set)->brush());
133 141
142 // bar->resize(mBarWidth, barHeight);
143 // layout.insert(bar,QSizeF(mBarWidth,barHeight));
144 bar->setPen(mSeries->barsetAt(set)->pen());
145 bar->setBrush(mSeries->barsetAt(set)->brush());
146 // bar->setPos(xPos, yPos-barHeight);
134 147 itemIndex++;
135 148 xPos += barWidth;
136 149 }
@@ -160,32 +173,106 void BarChartItem::layoutChanged()
160 173 xPos += barWidth;
161 174 }
162 175 }
163 update();
176 // update();
164 177 }
165
166 BarLayout BarChartItem::calculateLayout()
178 */
179 QVector<QRectF> BarChartItem::calculateLayout()
167 180 {
181 // layoutChanged();
182 /*
168 183 BarLayout layout;
169 184 foreach(Bar* bar, mBars) {
170 185 layout.insert(bar,bar->boundingRect());
171 186 }
187 */
188 QVector<QRectF> layout;
189
190 // Use temporary qreals for accurancy (we might get some compiler warnings... :)
191 int categoryCount = mSeries->categoryCount();
192 int setCount = mSeries->barsetCount();
193
194 qreal tW = mWidth;
195 qreal tH = mHeight;
196 qreal tM = mSeries->max();
197
198 // Domain:
199 if (mDomainMaxY > tM) {
200 tM = mDomainMaxY;
201 }
202
203 qreal scale = (tH/tM);
204 qreal tC = categoryCount + 1;
205 qreal categoryWidth = tW/tC;
206 mBarWidth = categoryWidth / (setCount+1);
207
208 int itemIndex(0);
209 for (int category=0; category < categoryCount; category++) {
210 qreal xPos = categoryWidth * category + categoryWidth /2 + mBarWidth/2;
211 qreal yPos = mHeight;
212 for (int set = 0; set < setCount; set++) {
213 qreal barHeight = mSeries->valueAt(set,category) * scale;
214 Bar* bar = mBars.at(itemIndex);
215
216 QRectF rect(xPos,yPos-barHeight,mBarWidth,barHeight);
217 //layout.insert(bar,rect);
218 layout.append(rect);
219 // TODO: width settable per bar?
220 // bar->resize(mBarWidth, barHeight);
221 // layout.insert(bar,QSizeF(mBarWidth,barHeight));
222 bar->setPen(mSeries->barsetAt(set)->pen());
223 bar->setBrush(mSeries->barsetAt(set)->brush());
224 // bar->setPos(xPos, yPos-barHeight);
225 itemIndex++;
226 xPos += mBarWidth;
227 }
228 }
229
230 // Position floating values
231 itemIndex = 0;
232 for (int category=0; category < mSeries->categoryCount(); category++) {
233 qreal xPos = categoryWidth * category + categoryWidth/2 + mBarWidth;
234 qreal yPos = mHeight;
235 for (int set=0; set < mSeries->barsetCount(); set++) {
236 qreal barHeight = mSeries->valueAt(set,category) * scale;
237 BarValue* value = mFloatingValues.at(itemIndex);
238
239 QBarSet* barSet = mSeries->barsetAt(set);
240 value->resize(100,50); // TODO: proper layout for this.
241 value->setPos(xPos, yPos-barHeight/2);
242 value->setPen(barSet->floatingValuePen());
243
244 if (mSeries->valueAt(set,category) != 0) {
245 value->setValueString(QString::number(mSeries->valueAt(set,category)));
246 } else {
247 value->setValueString(QString(""));
248 }
249
250 itemIndex++;
251 xPos += mBarWidth;
252 }
253 }
172 254
173 255 return layout;
174 256 }
175 257
176 void BarChartItem::applyLayout(const BarLayout &layout)
258 void BarChartItem::applyLayout(const QVector<QRectF> &layout)
177 259 {
178 260 if (animator())
179 animator()->updateLayout(this, layout);
261 animator()->updateLayout(this, mLayout, layout);
180 262 else
181 263 setLayout(layout);
182 264 }
183 265
184 void BarChartItem::setLayout(const BarLayout &layout)
266 void BarChartItem::setLayout(const QVector<QRectF> &layout)
185 267 {
186 foreach (Bar *bar, layout.keys()) {
187 bar->setRect(layout.value(bar));
268 mLayout = layout;
269
270 for (int i=0; i<mBars.count(); i++) {
271 //mBars.at(i)->setSize(layout.at(i).size());
272 //mBars.at(i)->setPos(layout.at(i).topLeft());
273 mBars.at(i)->setRect(layout.at(i));
188 274 }
275
189 276 update();
190 277 }
191 278
@@ -218,7 +305,7 void BarChartItem::handleDomainChanged(qreal minX, qreal maxX, qreal minY, qreal
218 305 mDomainMaxX = maxX;
219 306 mDomainMinY = minY;
220 307 mDomainMaxY = maxY;
221 layoutChanged();
308 handleLayoutChanged();
222 309
223 310 /*
224 311 int count = mSeries->categoryCount();
@@ -249,7 +336,8 void BarChartItem::handleGeometryChanged(const QRectF& rect)
249 336
250 337 void BarChartItem::handleLayoutChanged()
251 338 {
252 BarLayout layout = calculateLayout();
339 qDebug() << "BarChartItem::handleLayoutChanged";
340 QVector<QRectF> layout = calculateLayout();
253 341 applyLayout(layout);
254 342 update();
255 343 }
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@@ -14,7 +14,7 class BarValue;
14 14 class QChartAxisCategories;
15 15 class QChart;
16 16
17 typedef QHash<Bar*, QRectF> BarLayout;
17 //typedef QVector<QRectF> BarLayout;
18 18
19 19 class BarChartItem : public ChartItem
20 20 {
@@ -34,12 +34,13 public:
34 34 // TODO: Consider the domain for layoutChanged. May be use case, may not be. If it is, then the derived classes need to implement it
35 35 virtual void dataChanged(); // data of series has changed -> need to recalculate bar sizes
36 36 private slots:
37 virtual void layoutChanged(); // layout has changed -> need to recalculate bar sizes
37 //virtual void layoutChanged(); // layout has changed -> need to recalculate bar sizes
38 38
39 39 public:
40 BarLayout calculateLayout();
41 void applyLayout(const BarLayout &layout);
42 void setLayout(const BarLayout &layout);
40 QVector<QRectF> calculateLayout();
41 void applyLayout(const QVector<QRectF> &layout);
42 void setLayout(const QVector<QRectF> &layout);
43 void updateLayout(const QVector<QRectF> &layout);
43 44
44 45 QRectF geometry() const { return m_rect;}
45 46
@@ -65,6 +66,7 protected:
65 66
66 67 QRectF m_rect;
67 68 bool mLayoutSet; // True, if component has been laid out.
69 QVector<QRectF> mLayout;
68 70
69 71 // Not owned.
70 72 QBarSeries* mSeries;
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@@ -51,10 +51,12 QBarSeries::QBarSeries(QStringList categories, QObject *parent)
51 51 */
52 52 void QBarSeries::addBarSet(QBarSet *set)
53 53 {
54 qDebug() << "add bar set";
54 55 mModel->addBarSet(set);
55 56 connect(set,SIGNAL(clicked(QString)),this,SLOT(barsetClicked(QString)));
56 57 connect(set,SIGNAL(rightClicked(QString)),this,SLOT(barsetRightClicked(QString)));
57 58 connect(set, SIGNAL(valueChanged()), this, SLOT(barsetChanged()));
59 emit updatedBars();
58 60 }
59 61
60 62 /*!
@@ -67,6 +69,7 void QBarSeries::removeBarSet(QBarSet *set)
67 69 disconnect(set,SIGNAL(clicked(QString)),this,SLOT(barsetClicked(QString)));
68 70 disconnect(set,SIGNAL(rightClicked(QString)),this,SLOT(barsetRightClicked(QString)));
69 71 mModel->removeBarSet(set);
72 emit updatedBars();
70 73 }
71 74
72 75 void QBarSeries::insertBarSet(int i, QBarSet *set)
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