131 lines
4.4 KiB
C++
131 lines
4.4 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 shadow_effect;
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Border* border{};
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std::map<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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std::vector<Handle_Mouse> mouse_handlers;
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void set_border(const QColor& border_color, int len = 1) {
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if (!border)
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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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shadow_effect.setBlurRadius(10); // 设置模糊半径
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shadow_effect.setOffset(5, 5); // 设置阴影偏移量（x, y）
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shadow_effect.setColor(Qt::black); // 设置阴影颜色
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that->setGraphicsEffect(&shadow_effect);
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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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mouse_state = Mouse_State::Pressed;
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}
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else if (t == QEvent::MouseButtonRelease) {
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if (enter)
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mouse_state = Mouse_State::Entered;
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else
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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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enter = true;
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mouse_state = Mouse_State::Entered;
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return Event_Type::refresh;
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}
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else if (t == QEvent::Leave) {
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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 half_pen_width = 0;
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QRect adjusted_rect = rect.adjusted(half_pen_width, half_pen_width, -half_pen_width, -half_pen_width);
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qreal x_radius, y_radius;
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get_rounded_rect_radius(adjusted_rect, x_radius, y_radius);
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QPainterPath border_path;
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border_path.addRoundedRect(adjusted_rect, x_radius, y_radius);
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QRect inner_rect = adjusted_rect;
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if (border) {
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inner_rect.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 inner_path;
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inner_path.addRoundedRect(inner_rect, x_radius, y_radius);
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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(border_path);
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}
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painter->setBrush(c);
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painter->drawPath(inner_path);
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painter->restore();
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}
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else {
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if (border) {
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border_path = border_path.subtracted(inner_path);
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painter->setBrush(border->border_color);
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painter->drawPath(border_path);
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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 get_rounded_rect_radius(const QRect& rect, qreal& x_radius, qreal& y_radius) const {
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if (mode == Qt::RelativeSize) {
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x_radius = rect.width() * radius;
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y_radius = rect.height() * radius;
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}
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else {
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x_radius = radius;
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y_radius = radius;
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}
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}
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};
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