116 lines
4.2 KiB
C++
116 lines
4.2 KiB
C++
// This file is part of Desktop App Toolkit,
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// a set of libraries for developing nice desktop applications.
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//
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// For license and copyright information please follow this link:
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// https://github.com/desktop-app/legal/blob/master/LEGAL
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//
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#include "ui/widgets/shadow.h"
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#include "ui/ui_utility.h"
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#include "styles/style_widgets.h"
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#include "styles/palette.h"
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#include <QtGui/QPainter>
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#include <QtGui/QtEvents>
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namespace Ui {
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PlainShadow::PlainShadow(QWidget *parent)
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: PlainShadow(parent, st::shadowFg) {
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}
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PlainShadow::PlainShadow(QWidget *parent, style::color color)
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: RpWidget(parent)
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, _color(color) {
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resize(st::lineWidth, st::lineWidth);
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}
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void PlainShadow::paintEvent(QPaintEvent *e) {
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QPainter(this).fillRect(e->rect(), _color);
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}
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void Shadow::paint(QPainter &p, const QRect &box, int outerWidth, const style::Shadow &st, RectParts sides) {
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auto left = (sides & RectPart::Left);
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auto top = (sides & RectPart::Top);
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auto right = (sides & RectPart::Right);
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auto bottom = (sides & RectPart::Bottom);
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if (left) {
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auto from = box.y();
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auto to = from + box.height();
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if (top && !st.topLeft.empty()) {
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st.topLeft.paint(p, box.x() - st.extend.left(), box.y() - st.extend.top(), outerWidth);
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from += st.topLeft.height() - st.extend.top();
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}
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if (bottom && !st.bottomLeft.empty()) {
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st.bottomLeft.paint(p, box.x() - st.extend.left(), box.y() + box.height() + st.extend.bottom() - st.bottomLeft.height(), outerWidth);
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to -= st.bottomLeft.height() - st.extend.bottom();
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}
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if (to > from && !st.left.empty()) {
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st.left.fill(p, style::rtlrect(box.x() - st.extend.left(), from, st.left.width(), to - from, outerWidth));
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}
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}
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if (right) {
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auto from = box.y();
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auto to = from + box.height();
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if (top && !st.topRight.empty()) {
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st.topRight.paint(p, box.x() + box.width() + st.extend.right() - st.topRight.width(), box.y() - st.extend.top(), outerWidth);
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from += st.topRight.height() - st.extend.top();
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}
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if (bottom && !st.bottomRight.empty()) {
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st.bottomRight.paint(p, box.x() + box.width() + st.extend.right() - st.bottomRight.width(), box.y() + box.height() + st.extend.bottom() - st.bottomRight.height(), outerWidth);
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to -= st.bottomRight.height() - st.extend.bottom();
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}
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if (to > from && !st.right.empty()) {
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st.right.fill(p, style::rtlrect(box.x() + box.width() + st.extend.right() - st.right.width(), from, st.right.width(), to - from, outerWidth));
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}
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}
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if (top && !st.top.empty()) {
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auto from = box.x();
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auto to = from + box.width();
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if (left && !st.topLeft.empty()) from += st.topLeft.width() - st.extend.left();
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if (right && !st.topRight.empty()) to -= st.topRight.width() - st.extend.right();
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if (to > from) {
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st.top.fill(p, style::rtlrect(from, box.y() - st.extend.top(), to - from, st.top.height(), outerWidth));
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}
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}
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if (bottom && !st.bottom.empty()) {
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auto from = box.x();
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auto to = from + box.width();
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if (left && !st.bottomLeft.empty()) from += st.bottomLeft.width() - st.extend.left();
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if (right && !st.bottomRight.empty()) to -= st.bottomRight.width() - st.extend.right();
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if (to > from) {
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st.bottom.fill(p, style::rtlrect(from, box.y() + box.height() + st.extend.bottom() - st.bottom.height(), to - from, st.bottom.height(), outerWidth));
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}
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}
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}
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QPixmap Shadow::grab(
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not_null<TWidget*> target,
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const style::Shadow &shadow,
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RectParts sides) {
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SendPendingMoveResizeEvents(target);
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auto rect = target->rect();
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auto extend = QMargins(
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(sides & RectPart::Left) ? shadow.extend.left() : 0,
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(sides & RectPart::Top) ? shadow.extend.top() : 0,
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(sides & RectPart::Right) ? shadow.extend.right() : 0,
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(sides & RectPart::Bottom) ? shadow.extend.bottom() : 0
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);
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auto full = QRect(0, 0, extend.left() + rect.width() + extend.right(), extend.top() + rect.height() + extend.bottom());
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auto result = QPixmap(full.size() * style::DevicePixelRatio());
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result.setDevicePixelRatio(style::DevicePixelRatio());
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result.fill(Qt::transparent);
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{
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QPainter p(&result);
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Shadow::paint(p, full.marginsRemoved(extend), full.width(), shadow);
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RenderWidget(p, target, QPoint(extend.left(), extend.top()));
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}
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return result;
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}
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void Shadow::paintEvent(QPaintEvent *e) {
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QPainter p(this);
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paint(p, rect().marginsRemoved(_st.extend), width(), _st, _sides);
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}
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} // namespace Ui
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