Differential D10844 Diff 28246 lib/documentview/abstractimageview.cpp

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lib/documentview/abstractimageview.cpp

Show First 20 Lines • Show All 45 Lines • ▼ Show 20 Line(s)40{
46 QCursor mZoomCursor; 46​ QCursor mZoomCursor;
47 Document::Ptr mDocument; 47​ Document::Ptr mDocument;
48 48​
49 bool mControlKeyIsDown; 49​ bool mControlKeyIsDown;
50 bool mEnlargeSmallerImages; 50​ bool mEnlargeSmallerImages;
51 51​
52 qreal mZoom; 52​ qreal mZoom;
53 bool mZoomToFit; 53​ bool mZoomToFit;
54 bool mZoomToFitWidth; 54​ bool mZoomToFill;
55 QPointF mImageOffset; 55​ QPointF mImageOffset;
56 QPointF mScrollPos; 56​ QPointF mScrollPos;
57 QPointF mLastDragPos; 57​ QPointF mLastDragPos;
58 58​
59 void adjustImageOffset(Verbosity verbosity = Notify) 59​ void adjustImageOffset(Verbosity verbosity = Notify)
60 { 60​ {
61 QSizeF zoomedDocSize = q->documentSize() * mZoom; 61​ QSizeF zoomedDocSize = q->documentSize() * mZoom;
62 QSizeF viewSize = q->boundingRect().size(); 62​ QSizeF viewSize = q->boundingRect().size();
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115: QGraphicsWidget(parent) 115​: QGraphicsWidget(parent)
116, d(new AbstractImageViewPrivate) 116​, d(new AbstractImageViewPrivate)
117{ 117​{
118 d->q = this; 118​ d->q = this;
119 d->mControlKeyIsDown = false; 119​ d->mControlKeyIsDown = false;
120 d->mEnlargeSmallerImages = false; 120​ d->mEnlargeSmallerImages = false;
121 d->mZoom = 1; 121​ d->mZoom = 1;
122 d->mZoomToFit = true; 122​ d->mZoomToFit = true;
123 d->mZoomToFitWidth = false; 123​ d->mZoomToFill = false;
124 d->mImageOffset = QPointF(0, 0); 124​ d->mImageOffset = QPointF(0, 0);
125 d->mScrollPos = QPointF(0, 0); 125​ d->mScrollPos = QPointF(0, 0);
126 setFocusPolicy(Qt::WheelFocus); 126​ setFocusPolicy(Qt::WheelFocus);
127 setFlag(ItemIsSelectable); 127​ setFlag(ItemIsSelectable);
128 setAcceptHoverEvents(true); 128​ setAcceptHoverEvents(true);
129 d->setupZoomCursor(); 129​ d->setupZoomCursor();
130 updateCursor(); 130​ updateCursor();
131} 131​}
▲ Show 20 Lines • Show All 91 Lines • ▼ Show 20 Line(s)166{
223 zoomChanged(d->mZoom); 223​ zoomChanged(d->mZoom);
224} 224​}
225 225​
226bool AbstractImageView::zoomToFit() const 226​bool AbstractImageView::zoomToFit() const
227{ 227​{
228 return d->mZoomToFit; 228​ return d->mZoomToFit;
229} 229​}
230 230​
231bool AbstractImageView::zoomToFitWidth() const 231​bool AbstractImageView::zoomToFill() const
232{ 232​{
233 return d->mZoomToFitWidth; 233​ return d->mZoomToFill;
234} 234​}
235 235​
236void AbstractImageView::setZoomToFit(bool on) 236​void AbstractImageView::setZoomToFit(bool on)
237{ 237​{
238 d->mZoomToFit = on; 238​ d->mZoomToFit = on;
239 if (on) { 239​ if (on) {
240 setZoom(computeZoomToFit()); 240​ setZoom(computeZoomToFit());
241 } 241​ }
242 // We do not set zoom to 1 if zoomToFit is off, this is up to the code 242​ // We do not set zoom to 1 if zoomToFit is off, this is up to the code
243 // calling us. It may went to zoom to some other level and/or to zoom on 243​ // calling us. It may went to zoom to some other level and/or to zoom on
244 // a particular position 244​ // a particular position
245 zoomToFitChanged(d->mZoomToFit); 245​ zoomToFitChanged(d->mZoomToFit);
246} 246​}
247 247​
248void AbstractImageView::setZoomToFitWidth(bool on) 248​void AbstractImageView::setZoomToFill(bool on)
249{ 249​{
250 d->mZoomToFitWidth = on; 250​ d->mZoomToFill = on;
251 if (on) { 251​ if (on) {
252 setZoom(computeZoomToFitWidth()); 252​ setZoom(computeZoomToFill());
253 } 253​ }
254 // We do not set zoom to 1 if zoomToFit is off, this is up to the code 254​ // We do not set zoom to 1 if zoomToFit is off, this is up to the code
255 // calling us. It may went to zoom to some other level and/or to zoom on 255​ // calling us. It may went to zoom to some other level and/or to zoom on
256 // a particular position 256​ // a particular position
257 zoomToFitWidthChanged(d->mZoomToFitWidth); 257​ zoomToFillChanged(d->mZoomToFill);
258} 258​}
259 259​
260void AbstractImageView::resizeEvent(QGraphicsSceneResizeEvent* event) 260​void AbstractImageView::resizeEvent(QGraphicsSceneResizeEvent* event)
261{ 261​{
262 QGraphicsWidget::resizeEvent(event); 262​ QGraphicsWidget::resizeEvent(event);
263 if (d->mZoomToFit) { 263​ if (d->mZoomToFit) {
264 // setZoom() calls adjustImageOffset(), but only if the zoom changes. 264​ // setZoom() calls adjustImageOffset(), but only if the zoom changes.
265 // If the view is resized but does not cause a zoom change, we call 265​ // If the view is resized but does not cause a zoom change, we call
266 // adjustImageOffset() ourself. 266​ // adjustImageOffset() ourself.
267 const qreal newZoom = computeZoomToFit(); 267​ const qreal newZoom = computeZoomToFit();
268 if (qFuzzyCompare(zoom(), newZoom)) { 268​ if (qFuzzyCompare(zoom(), newZoom)) {
269 d->adjustImageOffset(AbstractImageViewPrivate::Notify); 269​ d->adjustImageOffset(AbstractImageViewPrivate::Notify);
270 } else { 270​ } else {
271 setZoom(newZoom); 271​ setZoom(newZoom);
272 } 272​ }
273 } else if (d->mZoomToFitWidth) { 273​ } else if (d->mZoomToFill) {
274 const qreal newZoom = computeZoomToFitWidth(); 274​ const qreal newZoom = computeZoomToFill();
275 if (qFuzzyCompare(zoom(), newZoom)) { 275​ if (qFuzzyCompare(zoom(), newZoom)) {
276 d->adjustImageOffset(AbstractImageViewPrivate::Notify); 276​ d->adjustImageOffset(AbstractImageViewPrivate::Notify);
277 } else { 277​ } else {
278 setZoom(newZoom); 278​ setZoom(newZoom);
279 } 279​ }
280 } else { 280​ } else {
281 d->adjustImageOffset(); 281​ d->adjustImageOffset();
282 d->adjustScrollPos(); 282​ d->adjustScrollPos();
Show All 11 Lines287{
294 qreal fitHeight = viewSize.height() / docSize.height(); 294​ qreal fitHeight = viewSize.height() / docSize.height();
295 qreal fit = qMin(fitWidth, fitHeight); 295​ qreal fit = qMin(fitWidth, fitHeight);
296 if (!d->mEnlargeSmallerImages) { 296​ if (!d->mEnlargeSmallerImages) {
297 fit = qMin(fit, qreal(1.)); 297​ fit = qMin(fit, qreal(1.));
298 } 298​ }
299 return fit; 299​ return fit;
300} 300​}
301 301​
302qreal AbstractImageView::computeZoomToFitWidth() const 302​qreal AbstractImageView::computeZoomToFill() const
303{ 303​{
304 QSizeF docSize = documentSize(); 304​ QSizeF docSize = documentSize();
305 if (docSize.isEmpty()) { 305​ if (docSize.isEmpty()) {
306 return 1; 306​ return 1;
307 } 307​ }
308 QSizeF viewSize = boundingRect().size(); 308​ QSizeF viewSize = boundingRect().size();
309 qreal fitWidth = viewSize.width() / docSize.width(); 309​ qreal fitWidth = viewSize.width() / docSize.width();
310​ qreal fitHeight = viewSize.height() / docSize.height();
311​ qreal fill = qMax(fitWidth, fitHeight);
310 if (!d->mEnlargeSmallerImages) { 312​ if (!d->mEnlargeSmallerImages) {
311 fitWidth = qMin(fitWidth, qreal(1.)); 313​ fill = qMin(fill, qreal(1.));
312 } 314​ }
313 return fitWidth; 315​ return fill;
ngrahamUnsubmitted
Done

Maybe name this variable "fill" to match the feature it's connected to?

ngraham: Maybe name this variable "fill" to match the feature it's connected to?
314} 316​}
315 317​
316void AbstractImageView::mousePressEvent(QGraphicsSceneMouseEvent* event) 318​void AbstractImageView::mousePressEvent(QGraphicsSceneMouseEvent* event)
317{ 319​{
318 QGraphicsItem::mousePressEvent(event); 320​ QGraphicsItem::mousePressEvent(event);
319 if (event->button() == Qt::MiddleButton) { 321​ if (event->button() == Qt::MiddleButton) {
320 bool value = !zoomToFit(); 322​ bool value = !zoomToFit();
321 setZoomToFit(value); 323​ setZoomToFit(value);
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