146 lines
4.3 KiB
C++
146 lines
4.3 KiB
C++
#pragma once
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#include "global.h"
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enum class Mouse_State {
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Default,
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Pressed,
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Entered
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};
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struct Border {
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QColor border_color = Qt::red;
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int len = 4;
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};
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using Handle_Mouse = std::function<void(QEvent::Type, QMouseEvent*)>;
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struct Background : PaintAble {
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QGraphicsDropShadowEffect shadowEffect;
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Border *border{};
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QMap<Mouse_State, QColor> map;
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Qt::SizeMode mode = Qt::RelativeSize;
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qreal radius = 0.1;
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bool enter = false;
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Mouse_State mouse_state = Mouse_State::Default;
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QVector<Handle_Mouse> mouse_handlers;
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void set_border(const QColor& border_color, int len = 1) {
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if(!border) border = new Border;
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border->border_color = border_color;
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border->len = len;
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}
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void set_effect(QWidget* that) {
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shadowEffect.setBlurRadius(10); // 设置模糊半径
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shadowEffect.setOffset(5, 5); // 设置阴影偏移量（x, y）
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shadowEffect.setColor(Qt::black); // 设置阴影颜色
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that->setGraphicsEffect(&shadowEffect);
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}
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void set_color(const QColor& color) {
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map[Mouse_State::Default] = color;
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double r = color.red();
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double g = color.green();
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double b = color.blue();
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//int alpha = color.alpha();
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double upper = 1.6;
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double lower = 0.4;
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auto ur = qMin(255, (int)(r * upper));
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auto ug = qMin(255, (int)(g * upper));
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auto ub = qMin(255, (int)(b * upper));
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int lr = (int)(r * lower);
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int lg = (int)(g * lower);
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int lb = (int)(b * lower);
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map[Mouse_State::Pressed] = QColor(ur, ug, ub);
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map[Mouse_State::Entered] = QColor(lr, lg, lb);
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}
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Event_Type mouse_event(QEvent::Type t, QMouseEvent* e) override {
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if (t == QEvent::MouseButtonPress)
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{
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mouse_state = Mouse_State::Pressed;
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} else if (t == QEvent::MouseButtonRelease)
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{
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if (enter) mouse_state = Mouse_State::Entered;
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else mouse_state = Mouse_State::Default;
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}
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for (auto& handler : mouse_handlers) {
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handler(t, e);
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}
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return Event_Type::refresh;
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}
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Event_Type event(QEvent::Type t, QEvent* e) override {
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if (t == QEvent::Enter)
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{
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enter = true;
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mouse_state = Mouse_State::Entered;
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return Event_Type::refresh;
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} else if (t == QEvent::Leave)
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{
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enter = false;
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mouse_state = Mouse_State::Default;
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return Event_Type::refresh;
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}
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return PaintAble::event(t, e);
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}
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void paint(QPainter* painter, QRect rect) override {
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painter->save();
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int halfPenWidth = 0;
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QRect adjustedRect = rect.adjusted(halfPenWidth, halfPenWidth, -halfPenWidth, -halfPenWidth);
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qreal xRadius, yRadius;
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getRoundedRectRadius(adjustedRect, xRadius, yRadius);
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QPainterPath borderPath;
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borderPath.addRoundedRect(adjustedRect, xRadius, yRadius);
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QRect innerRect = adjustedRect;
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if(border) {
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innerRect.adjust(border->len, border->len, -border->len, -border->len);
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}
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// 内部区域边距
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QPainterPath innerPath;
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innerPath.addRoundedRect(innerRect, xRadius, yRadius);
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QColor c = map[mouse_state];
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painter->setPen(Qt::NoPen);
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if (c.isValid()) {
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painter->save();
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if (border) {
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painter->setBrush(border->border_color);
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painter->drawPath(borderPath);
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}
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painter->setBrush(c);
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painter->drawPath(innerPath);
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painter->restore();
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} else
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{
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if (border) {
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borderPath = borderPath.subtracted(innerPath);
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painter->setBrush(border->border_color);
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painter->drawPath(borderPath);
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}
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}
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painter->restore();
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}
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void set_radius(Qt::SizeMode mode, qreal value) {
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this->mode = mode;
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this->radius = value;
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}
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protected:
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void getRoundedRectRadius(const QRect& rect, qreal& xRadius, qreal& yRadius) const {
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if (mode == Qt::RelativeSize) {
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xRadius = rect.width() * radius;
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yRadius = rect.height() * radius;
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} else {
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xRadius = radius;
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yRadius = radius;
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}
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}
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};
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