220 lines
6.8 KiB
C++
220 lines
6.8 KiB
C++
// This file is part of Desktop App Toolkit,
|
|
// a set of libraries for developing nice desktop applications.
|
|
//
|
|
// For license and copyright information please follow this link:
|
|
// https://github.com/desktop-app/legal/blob/master/LEGAL
|
|
//
|
|
#include "ui/widgets/shadow.h"
|
|
|
|
#include "ui/ui_utility.h"
|
|
#include "styles/style_widgets.h"
|
|
#include "styles/palette.h"
|
|
|
|
#include <QtGui/QPainter>
|
|
#include <QtGui/QtEvents>
|
|
|
|
namespace Ui {
|
|
namespace {
|
|
|
|
struct CustomImage {
|
|
public:
|
|
explicit CustomImage(const QImage &image)
|
|
: _image(image) {
|
|
}
|
|
void paint(QPainter &p, int x, int y, int outerw) const {
|
|
p.drawImage(x, y, _image);
|
|
}
|
|
void fill(QPainter &p, QRect rect) const {
|
|
p.drawImage(rect, _image);
|
|
}
|
|
[[nodiscard]] bool empty() const {
|
|
return _image.isNull();
|
|
}
|
|
[[nodiscard]] int width() const {
|
|
return _image.width() / style::DevicePixelRatio();
|
|
}
|
|
[[nodiscard]] int height() const {
|
|
return _image.height() / style::DevicePixelRatio();
|
|
}
|
|
|
|
private:
|
|
const QImage &_image;
|
|
|
|
};
|
|
|
|
struct CustomShadowCorners {
|
|
const style::icon &left;
|
|
CustomImage topLeft;
|
|
const style::icon ⊤
|
|
CustomImage topRight;
|
|
const style::icon &right;
|
|
CustomImage bottomRight;
|
|
const style::icon ⊥
|
|
CustomImage bottomLeft;
|
|
const style::margins &extend;
|
|
};
|
|
|
|
struct CustomShadow {
|
|
CustomImage left;
|
|
CustomImage topLeft;
|
|
CustomImage top;
|
|
CustomImage topRight;
|
|
CustomImage right;
|
|
CustomImage bottomRight;
|
|
CustomImage bottom;
|
|
CustomImage bottomLeft;
|
|
const style::margins &extend;
|
|
};
|
|
|
|
template <typename Shadow>
|
|
void ShadowPaint(QPainter &p, const QRect &box, int outerWidth, const Shadow &st, RectParts sides) {
|
|
auto left = (sides & RectPart::Left);
|
|
auto top = (sides & RectPart::Top);
|
|
auto right = (sides & RectPart::Right);
|
|
auto bottom = (sides & RectPart::Bottom);
|
|
if (left) {
|
|
auto from = box.y();
|
|
auto to = from + box.height();
|
|
if (top && !st.topLeft.empty()) {
|
|
st.topLeft.paint(p, box.x() - st.extend.left(), box.y() - st.extend.top(), outerWidth);
|
|
from += st.topLeft.height() - st.extend.top();
|
|
}
|
|
if (bottom && !st.bottomLeft.empty()) {
|
|
st.bottomLeft.paint(p, box.x() - st.extend.left(), box.y() + box.height() + st.extend.bottom() - st.bottomLeft.height(), outerWidth);
|
|
to -= st.bottomLeft.height() - st.extend.bottom();
|
|
}
|
|
if (to > from && !st.left.empty()) {
|
|
st.left.fill(p, style::rtlrect(box.x() - st.extend.left(), from, st.left.width(), to - from, outerWidth));
|
|
}
|
|
}
|
|
if (right) {
|
|
auto from = box.y();
|
|
auto to = from + box.height();
|
|
if (top && !st.topRight.empty()) {
|
|
st.topRight.paint(p, box.x() + box.width() + st.extend.right() - st.topRight.width(), box.y() - st.extend.top(), outerWidth);
|
|
from += st.topRight.height() - st.extend.top();
|
|
}
|
|
if (bottom && !st.bottomRight.empty()) {
|
|
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);
|
|
to -= st.bottomRight.height() - st.extend.bottom();
|
|
}
|
|
if (to > from && !st.right.empty()) {
|
|
st.right.fill(p, style::rtlrect(box.x() + box.width() + st.extend.right() - st.right.width(), from, st.right.width(), to - from, outerWidth));
|
|
}
|
|
}
|
|
if (top && !st.top.empty()) {
|
|
auto from = box.x();
|
|
auto to = from + box.width();
|
|
if (left && !st.topLeft.empty()) from += st.topLeft.width() - st.extend.left();
|
|
if (right && !st.topRight.empty()) to -= st.topRight.width() - st.extend.right();
|
|
if (to > from) {
|
|
st.top.fill(p, style::rtlrect(from, box.y() - st.extend.top(), to - from, st.top.height(), outerWidth));
|
|
}
|
|
}
|
|
if (bottom && !st.bottom.empty()) {
|
|
auto from = box.x();
|
|
auto to = from + box.width();
|
|
if (left && !st.bottomLeft.empty()) from += st.bottomLeft.width() - st.extend.left();
|
|
if (right && !st.bottomRight.empty()) to -= st.bottomRight.width() - st.extend.right();
|
|
if (to > from) {
|
|
st.bottom.fill(p, style::rtlrect(from, box.y() + box.height() + st.extend.bottom() - st.bottom.height(), to - from, st.bottom.height(), outerWidth));
|
|
}
|
|
}
|
|
}
|
|
|
|
} // namespace
|
|
|
|
PlainShadow::PlainShadow(QWidget *parent)
|
|
: PlainShadow(parent, st::shadowFg) {
|
|
}
|
|
|
|
PlainShadow::PlainShadow(QWidget *parent, style::color color)
|
|
: RpWidget(parent)
|
|
, _color(color) {
|
|
resize(st::lineWidth, st::lineWidth);
|
|
}
|
|
|
|
void PlainShadow::paintEvent(QPaintEvent *e) {
|
|
QPainter(this).fillRect(e->rect(), _color);
|
|
}
|
|
|
|
void Shadow::paint(QPainter &p, const QRect &box, int outerWidth, const style::Shadow &st, RectParts sides) {
|
|
ShadowPaint<style::Shadow>(p, box, outerWidth, st, sides);
|
|
}
|
|
|
|
void Shadow::paint(
|
|
QPainter &p,
|
|
const QRect &box,
|
|
int outerWidth,
|
|
const style::Shadow &st,
|
|
const std::array<QImage, 4> &corners,
|
|
RectParts sides) {
|
|
const auto shadow = CustomShadowCorners{
|
|
.left = st.left,
|
|
.topLeft = CustomImage(corners[0]),
|
|
.top = st.top,
|
|
.topRight = CustomImage(corners[2]),
|
|
.right = st.right,
|
|
.bottomRight = CustomImage(corners[3]),
|
|
.bottom = st.bottom,
|
|
.bottomLeft = CustomImage(corners[1]),
|
|
.extend = st.extend,
|
|
};
|
|
ShadowPaint<CustomShadowCorners>(p, box, outerWidth, shadow, sides);
|
|
}
|
|
|
|
void Shadow::paint(
|
|
QPainter &p,
|
|
const QRect &box,
|
|
int outerWidth,
|
|
const style::Shadow &st,
|
|
const std::array<QImage, 4> &sides,
|
|
const std::array<QImage, 4> &corners) {
|
|
const auto shadow = CustomShadow{
|
|
.left = CustomImage(sides[0]),
|
|
.topLeft = CustomImage(corners[0]),
|
|
.top = CustomImage(sides[1]),
|
|
.topRight = CustomImage(corners[2]),
|
|
.right = CustomImage(sides[2]),
|
|
.bottomRight = CustomImage(corners[3]),
|
|
.bottom = CustomImage(sides[3]),
|
|
.bottomLeft = CustomImage(corners[1]),
|
|
.extend = st.extend,
|
|
};
|
|
ShadowPaint<CustomShadow>(p, box, outerWidth, shadow, RectPart()
|
|
| (sides[0].isNull() ? RectPart() : RectPart::Left)
|
|
| (sides[1].isNull() ? RectPart() : RectPart::Top)
|
|
| (sides[2].isNull() ? RectPart() : RectPart::Right)
|
|
| (sides[3].isNull() ? RectPart() : RectPart::Bottom));
|
|
}
|
|
|
|
QPixmap Shadow::grab(
|
|
not_null<TWidget*> target,
|
|
const style::Shadow &shadow,
|
|
RectParts sides) {
|
|
SendPendingMoveResizeEvents(target);
|
|
auto rect = target->rect();
|
|
auto extend = QMargins(
|
|
(sides & RectPart::Left) ? shadow.extend.left() : 0,
|
|
(sides & RectPart::Top) ? shadow.extend.top() : 0,
|
|
(sides & RectPart::Right) ? shadow.extend.right() : 0,
|
|
(sides & RectPart::Bottom) ? shadow.extend.bottom() : 0
|
|
);
|
|
auto full = QRect(0, 0, extend.left() + rect.width() + extend.right(), extend.top() + rect.height() + extend.bottom());
|
|
auto result = QPixmap(full.size() * style::DevicePixelRatio());
|
|
result.setDevicePixelRatio(style::DevicePixelRatio());
|
|
result.fill(Qt::transparent);
|
|
{
|
|
QPainter p(&result);
|
|
Shadow::paint(p, full.marginsRemoved(extend), full.width(), shadow);
|
|
RenderWidget(p, target, QPoint(extend.left(), extend.top()));
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void Shadow::paintEvent(QPaintEvent *e) {
|
|
QPainter p(this);
|
|
paint(p, rect().marginsRemoved(_st.extend), width(), _st, _sides);
|
|
}
|
|
|
|
} // namespace Ui
|