Differential D10942 Diff 34707 kcmkwin/kwindecoration/declarative-plugin/previewitem.cpp

Changeset View

Standalone View

View Options

kcmkwin/kwindecoration/declarative-plugin/previewitem.cpp

Show All 24 Lines
25#include <KDecoration2/DecorationSettings> 25​#include <KDecoration2/DecorationSettings>
26#include <KDecoration2/DecorationShadow> 26​#include <KDecoration2/DecorationShadow>
27#include <KDecoration2/DecoratedClient> 27​#include <KDecoration2/DecoratedClient>
28#include <QCursor> 28​#include <QCursor>
29#include <QPainter> 29​#include <QPainter>
30#include <QQmlContext> 30​#include <QQmlContext>
31#include <QQmlEngine> 31​#include <QQmlEngine>
32 32​
33​#include <cmath>
34​
33#include <QDebug> 35​#include <QDebug>
34 36​
35namespace KDecoration2 37​namespace KDecoration2
36{ 38​{
37namespace Preview 39​namespace Preview
38{ 40​{
39 41​
40PreviewItem::PreviewItem(QQuickItem *parent) 42​PreviewItem::PreviewItem(QQuickItem *parent)
▲ Show 20 Lines • Show All 125 Lines • ▼ Show 20 Line(s)
166} 168​}
167 169​
168void PreviewItem::paintShadow(QPainter *painter, int &paddingLeft, int &paddingRight, int &paddingTop, int &paddingBottom) 170​void PreviewItem::paintShadow(QPainter *painter, int &paddingLeft, int &paddingRight, int &paddingTop, int &paddingBottom)
169{ 171​{
170 const auto &shadow = ((const Decoration*)(m_decoration))->shadow(); 172​ const auto &shadow = ((const Decoration*)(m_decoration))->shadow();
171 if (!shadow) { 173​ if (!shadow) {
172 return; 174​ return;
173 } 175​ }
176​
174 paddingLeft = shadow->paddingLeft(); 177​ paddingLeft = shadow->paddingLeft();
175 paddingTop = shadow->paddingTop(); 178​ paddingTop = shadow->paddingTop();
176 paddingRight = shadow->paddingRight(); 179​ paddingRight = shadow->paddingRight();
177 paddingBottom = shadow->paddingBottom(); 180​ paddingBottom = shadow->paddingBottom();
178 const QImage img = shadow->shadow(); 181​
179 if (img.isNull()) { 182​ const QImage shadowPixmap = shadow->shadow();
183​ if (shadowPixmap.isNull()) {
180 return; 184​ return;
181 } 185​ }
182 const QRect &topLeft = shadow->topLeftGeometry(); 186​
183 const QRect &top = shadow->topGeometry(); 187​ const QRect outerRect(-paddingLeft, -paddingTop, width(), height());
184 const QRect &topRight = shadow->topRightGeometry(); 188​ const QRect shadowRect(shadowPixmap.rect());
185 const QRect &right = shadow->rightGeometry(); 189​
186 const QRect &left = shadow->leftGeometry(); 190​ const QSize topLeftSize(shadow->topLeftGeometry().size());
187 const QRect &bottomLeft = shadow->bottomLeftGeometry(); 191​ QRect topLeftTarget(
188 const QRect &bottom = shadow->bottomGeometry(); 192​ QPoint(outerRect.x(), outerRect.y()),
189 const QRect &bottomRight = shadow->bottomRightGeometry(); 193​ topLeftSize);
194​
195​ const QSize topRightSize(shadow->topRightGeometry().size());
196​ QRect topRightTarget(
197​ QPoint(outerRect.x() + outerRect.width() - topRightSize.width(),
198​ outerRect.y()),
199​ topRightSize);
200​
201​ const QSize bottomRightSize(shadow->bottomRightGeometry().size());
202​ QRect bottomRightTarget(
203​ QPoint(outerRect.x() + outerRect.width() - bottomRightSize.width(),
204​ outerRect.y() + outerRect.height() - bottomRightSize.height()),
205​ bottomRightSize);
206​
207​ const QSize bottomLeftSize(shadow->bottomLeftGeometry().size());
208​ QRect bottomLeftTarget(
209​ QPoint(outerRect.x(),
210​ outerRect.y() + outerRect.height() - bottomLeftSize.height()),
211​ bottomLeftSize);
212​
213​ // Re-distribute the corner tiles so no one of them is overlapping with others.
214​ // By doing this, we assume that shadow's corner tiles are symmetric
215​ // and it is OK to not draw top/right/bottom/left tile between corners.
216​ // For example, let's say top-left and top-right tiles are overlapping.
217​ // In that case, the right side of the top-left tile will be shifted to left,
218​ // the left side of the top-right tile will shifted to right, and the top
219​ // tile won't be rendered.
220​ bool drawTop = true;
221​ if (topLeftTarget.x() + topLeftTarget.width() >= topRightTarget.x()) {
222​ const float halfOverlap = qAbs(topLeftTarget.x() + topLeftTarget.width() - topRightTarget.x()) / 2.0f;
223​ topLeftTarget.setRight(topLeftTarget.right() - std::floor(halfOverlap));
224​ topRightTarget.setLeft(topRightTarget.left() + std::ceil(halfOverlap));
225​ drawTop = false;
226​ }
227​
228​ bool drawRight = true;
229​ if (topRightTarget.y() + topRightTarget.height() >= bottomRightTarget.y()) {
230​ const float halfOverlap = qAbs(topRightTarget.y() + topRightTarget.height() - bottomRightTarget.y()) / 2.0f;
231​ topRightTarget.setBottom(topRightTarget.bottom() - std::floor(halfOverlap));
232​ bottomRightTarget.setTop(bottomRightTarget.top() + std::ceil(halfOverlap));
233​ drawRight = false;
234​ }
235​
236​ bool drawBottom = true;
237​ if (bottomLeftTarget.x() + bottomLeftTarget.width() >= bottomRightTarget.x()) {
238​ const float halfOverlap = qAbs(bottomLeftTarget.x() + bottomLeftTarget.width() - bottomRightTarget.x()) / 2.0f;
239​ bottomLeftTarget.setRight(bottomLeftTarget.right() - std::floor(halfOverlap));
240​ bottomRightTarget.setLeft(bottomRightTarget.left() + std::ceil(halfOverlap));
241​ drawBottom = false;
242​ }
243​
244​ bool drawLeft = true;
245​ if (topLeftTarget.y() + topLeftTarget.height() >= bottomLeftTarget.y()) {
246​ const float halfOverlap = qAbs(topLeftTarget.y() + topLeftTarget.height() - bottomLeftTarget.y()) / 2.0f;
247​ topLeftTarget.setBottom(topLeftTarget.bottom() - std::floor(halfOverlap));
248​ bottomLeftTarget.setTop(bottomLeftTarget.top() + std::ceil(halfOverlap));
249​ drawLeft = false;
250​ }
190 251​
191 painter->translate(paddingLeft, paddingTop); 252​ painter->translate(paddingLeft, paddingTop);
192 253​
193 // top left 254​ painter->drawImage(topLeftTarget, shadowPixmap,
194 painter->drawImage(QPoint(-paddingLeft, -paddingTop), img, topLeft); 255​ QRect(QPoint(0, 0), topLeftTarget.size()));
195 // top 256​
196 painter->drawImage(QRect(-paddingLeft + topLeft.width(), -paddingTop, width() - topLeft.width() - topRight.width(), top.height()), img, top); 257​ painter->drawImage(topRightTarget, shadowPixmap,
197 // top right 258​ QRect(QPoint(shadowRect.width() - topRightTarget.width(), 0),
198 painter->drawImage(QPoint(width() - topRight.width() - paddingLeft, -paddingTop), img, topRight); 259​ topRightTarget.size()));
199 // right 260​
200 painter->drawImage(QRect(width() - right.width() - paddingLeft, -paddingTop + topRight.height(), right.width(), height() - topRight.height() - bottomRight.height()), img, right); 261​ painter->drawImage(bottomRightTarget, shadowPixmap,
201 // bottom right 262​ QRect(QPoint(shadowRect.width() - bottomRightTarget.width(),
202 painter->drawImage(QPoint(width() - paddingLeft - bottomRight.width(), height() - paddingTop - bottomRight.height()), img, bottomRight); 263​ shadowRect.height() - bottomRightTarget.height()),
203 // bottom 264​ bottomRightTarget.size()));
204 painter->drawImage(QRect(-paddingLeft + bottomLeft.width(), height() - bottom.height() - paddingTop, width() - bottomLeft.width() - bottomRight.width(), bottom.height()), img, bottom); 265​
205 // bottom left 266​ painter->drawImage(bottomLeftTarget, shadowPixmap,
206 painter->drawImage(QPoint(-paddingLeft, height() - bottomLeft.height() - paddingTop), img, bottomLeft); 267​ QRect(QPoint(0, shadowRect.height() - bottomLeftTarget.height()),
207 // left 268​ bottomLeftTarget.size()));
208 painter->drawImage(QRect(-paddingLeft, -paddingTop + topLeft.height(), left.width(), height() - topLeft.height() - bottomLeft.height()), img, left); 269​
270​ if (drawTop) {
271​ QRect topTarget(topLeftTarget.x() + topLeftTarget.width(),
272​ topLeftTarget.y(),
273​ topRightTarget.x() - topLeftTarget.x() - topLeftTarget.width(),
274​ topRightTarget.height());
275​ QRect topSource(shadow->topGeometry());
276​ topSource.setHeight(topTarget.height());
277​ topSource.moveTop(shadowRect.top());
278​ painter->drawImage(topTarget, shadowPixmap, topSource);
279​ }
280​
281​ if (drawRight) {
282​ QRect rightTarget(topRightTarget.x(),
283​ topRightTarget.y() + topRightTarget.height(),
284​ topRightTarget.width(),
285​ bottomRightTarget.y() - topRightTarget.y() - topRightTarget.height());
286​ QRect rightSource(shadow->rightGeometry());
287​ rightSource.setWidth(rightTarget.width());
288​ rightSource.moveRight(shadowRect.right());
289​ painter->drawImage(rightTarget, shadowPixmap, rightSource);
290​ }
291​
292​ if (drawBottom) {
293​ QRect bottomTarget(bottomLeftTarget.x() + bottomLeftTarget.width(),
294​ bottomLeftTarget.y(),
295​ bottomRightTarget.x() - bottomLeftTarget.x() - bottomLeftTarget.width(),
296​ bottomRightTarget.height());
297​ QRect bottomSource(shadow->bottomGeometry());
298​ bottomSource.setHeight(bottomTarget.height());
299​ bottomSource.moveBottom(shadowRect.bottom());
300​ painter->drawImage(bottomTarget, shadowPixmap, bottomSource);
301​ }
302​
303​ if (drawLeft) {
304​ QRect leftTarget(topLeftTarget.x(),
305​ topLeftTarget.y() + topLeftTarget.height(),
306​ topLeftTarget.width(),
307​ bottomLeftTarget.y() - topLeftTarget.y() - topLeftTarget.height());
308​ QRect leftSource(shadow->leftGeometry());
309​ leftSource.setWidth(leftTarget.width());
310​ leftSource.moveLeft(shadowRect.left());
311​ painter->drawImage(leftTarget, shadowPixmap, leftSource);
312​ }
209} 313​}
210 314​
211void PreviewItem::mouseDoubleClickEvent(QMouseEvent *event) 315​void PreviewItem::mouseDoubleClickEvent(QMouseEvent *event)
212{ 316​{
213 const auto &shadow = m_decoration->shadow(); 317​ const auto &shadow = m_decoration->shadow();
214 if (shadow) { 318​ if (shadow) {
215 QMouseEvent e(event->type(), 319​ QMouseEvent e(event->type(),
216 event->localPos() - QPointF(shadow->paddingLeft(), shadow->paddingTop()), 320​ event->localPos() - QPointF(shadow->paddingLeft(), shadow->paddingTop()),
▲ Show 20 Lines • Show All 179 Lines • Show Last 20 Lines