Files
ts-qt/modern-qt/widget/buttons/icon-button.impl.hh
2025-10-20 00:32:01 +08:00

287 lines
11 KiB
C++

#pragma once
#include "icon-button.hh"
#include "modern-qt/utility/animation/animatable.hh"
#include "modern-qt/utility/animation/state/pid.hh"
#include "modern-qt/utility/animation/state/spring.hh"
#include "modern-qt/utility/animation/transition.hh"
#include "modern-qt/utility/animation/water-ripple.hh"
#include "modern-qt/utility/material-icon.hh"
#include "modern-qt/utility/painter/helper.hh"
using namespace creeper::icon_button::internal;
constexpr auto kHoverOpacity = double { 0.1 };
constexpr auto kWaterOpacity = double { 0.4 };
constexpr auto kWidthRatio = double { 1.25 };
constexpr auto kOutlineWidth = double { 1.5 };
constexpr auto kSquareRatio = double { 0.5 };
constexpr double kp = 15.0, ki = 0.0, kd = 0.0;
constexpr auto kSpringK = double { 400.0 };
constexpr auto kSpringD = double { 15.0 };
constexpr auto kThreshold1D = double { 1e-1 };
constexpr auto kWaterSpeed = double { 5.0 };
struct IconButton::Impl {
bool is_hovered = false;
QString font_icon {};
Types types { Types::DEFAULT };
Shape shape { Shape::DEFAULT_ROUND };
Color color { Color::DEFAULT_FILLED };
Width width { Width::DEFAULT };
QColor container_color = Qt::white;
QColor container_color_unselected = Qt::white;
QColor container_color_selected = Qt::white;
QColor outline_color = Qt::gray;
QColor outline_color_unselected = Qt::gray;
QColor outline_color_selected = Qt::gray;
QColor icon_color = Qt::black;
QColor icon_color_unselected = Qt::black;
QColor icon_color_selected = Qt::black;
QColor hover_color = Qt::gray;
QColor hover_color_unselected = Qt::gray;
QColor hover_color_selected = Qt::gray;
QColor water_color = Qt::gray;
Animatable animatable;
WaterRippleRenderer water_ripple;
std::unique_ptr<TransitionValue<SpringState<double>>> now_container_radius;
std::unique_ptr<TransitionValue<PidState<Eigen::Vector4d>>> now_color_container;
std::unique_ptr<TransitionValue<PidState<Eigen::Vector4d>>> now_color_icon;
std::unique_ptr<TransitionValue<PidState<Eigen::Vector4d>>> now_color_outline;
explicit Impl(IconButton& self) noexcept
: animatable { self }
, water_ripple { animatable, kWaterSpeed } {
{
auto state = std::make_shared<SpringState<double>>();
state->config.epsilon = kThreshold1D;
state->config.k = kSpringK;
state->config.d = kSpringD;
now_container_radius = make_transition(animatable, std::move(state));
}
{
constexpr auto make_state = [] {
auto state = std::make_shared<PidState<Eigen::Vector4d>>();
state->config.kp = kp;
state->config.ki = ki;
state->config.kd = kd;
return state;
};
now_color_container = make_transition(animatable, make_state());
now_color_icon = make_transition(animatable, make_state());
now_color_outline = make_transition(animatable, make_state());
}
QObject::connect(&self, &IconButton::clicked, [this, &self] {
if (types == Types::DEFAULT) {
const auto center_point = self.mapFromGlobal(QCursor::pos());
const auto max_distance = std::max(self.width(), self.height());
water_ripple.clicked(center_point, max_distance);
}
toggle_status();
update_animation_status(self);
});
}
auto enter_event(IconButton& self, const QEvent& event) {
self.setCursor(Qt::PointingHandCursor);
is_hovered = true;
}
auto leave_event(IconButton& self, const QEvent& event) { is_hovered = false; }
auto paint_event(IconButton& self, const QPaintEvent& event) {
// TODO: 做计算数据缓存优化,特别是 Resize 相关的计算
const auto icon = self.icon();
const auto color_container = from_vector4(*now_color_container);
const auto color_icon = from_vector4(*now_color_icon);
const auto color_outline = from_vector4(*now_color_outline);
const auto hover_color = is_hovered ? get_hover_color() : Qt::transparent;
const auto container_radius = *now_container_radius;
const auto container_rect = container_rectangle(self);
auto clip_path = QPainterPath {};
clip_path.addRoundedRect(container_rect, container_radius, container_radius);
auto renderer = QPainter { &self };
util::PainterHelper { renderer }
.set_render_hint(QPainter::Antialiasing)
.rounded_rectangle(color_container, color_outline, kOutlineWidth, container_rect,
container_radius, container_radius)
.apply(water_ripple.renderer(clip_path, water_color))
.simple_text(font_icon, self.font(), color_icon, container_rect, Qt::AlignCenter)
.rounded_rectangle(
hover_color, Qt::transparent, 0, container_rect, container_radius, container_radius)
.done();
}
auto set_types_type(IconButton& self, Types types) {
this->types = types;
update_animation_status(self);
}
auto set_color_type(IconButton& self, Color color) {
this->color = color;
update_animation_status(self);
}
auto set_shape_type(IconButton& self, Shape shape) {
this->shape = shape;
update_animation_status(self);
}
auto set_width_type(IconButton& self, Width width) {
this->width = width;
update_animation_status(self);
}
auto set_color_scheme(IconButton& self, const ColorScheme& scheme) {
switch (color) {
case Color::DEFAULT_FILLED:
container_color = scheme.primary;
icon_color = scheme.on_primary;
outline_color = Qt::transparent;
container_color_unselected = scheme.surface_container_high;
icon_color_unselected = scheme.primary;
outline_color_unselected = Qt::transparent;
container_color_selected = scheme.primary;
icon_color_selected = scheme.on_primary;
outline_color_selected = Qt::transparent;
break;
case Color::TONAL:
container_color = scheme.secondary_container;
icon_color = scheme.on_secondary_container;
outline_color = Qt::transparent;
container_color_unselected = scheme.surface_container_high;
icon_color_unselected = scheme.surface_variant;
outline_color_unselected = Qt::transparent;
container_color_selected = scheme.secondary_container;
icon_color_selected = scheme.on_secondary_container;
outline_color_selected = Qt::transparent;
break;
case Color::OUTLINED:
container_color = Qt::transparent;
outline_color = scheme.outline_variant;
icon_color = scheme.on_surface_variant;
container_color_unselected = Qt::transparent;
outline_color_unselected = scheme.outline_variant;
icon_color_unselected = scheme.surface_variant;
container_color_selected = scheme.inverse_surface;
outline_color_selected = scheme.inverse_surface;
icon_color_selected = scheme.inverse_on_surface;
break;
case Color::STANDARD:
container_color = Qt::transparent;
outline_color = Qt::transparent;
icon_color = scheme.on_surface_variant;
container_color_unselected = Qt::transparent;
outline_color_unselected = Qt::transparent;
icon_color_unselected = scheme.on_surface_variant;
container_color_selected = Qt::transparent;
outline_color_selected = Qt::transparent;
icon_color_selected = scheme.primary;
break;
}
hover_color = icon_color;
hover_color.setAlphaF(kHoverOpacity);
hover_color_selected = icon_color_selected;
hover_color_selected.setAlphaF(kHoverOpacity);
hover_color_unselected = icon_color_unselected;
hover_color_unselected.setAlphaF(kHoverOpacity);
water_color = icon_color;
water_color.setAlphaF(kWaterOpacity);
update_animation_status(self);
}
auto load_theme_manager(IconButton& self, ThemeManager& manager) {
manager.append_handler(&self, [this, &self](const ThemeManager& manager) {
set_color_scheme(self, manager.color_scheme());
});
}
private:
auto update_animation_status(IconButton& self) -> void {
const auto container_color_target = (types == Types::DEFAULT) ? container_color : //
(types == Types::TOGGLE_SELECTED) ? container_color_selected
: container_color_unselected;
now_color_container->transition_to(from_color(container_color_target));
const auto icon_color_target = (types == Types::DEFAULT) ? icon_color : //
(types == Types::TOGGLE_SELECTED) ? icon_color_selected
: icon_color_unselected;
now_color_icon->transition_to(from_color(icon_color_target));
const auto outline_color_target //
= (types == Types::DEFAULT) ? outline_color
: (types == Types::TOGGLE_SELECTED) ? outline_color_selected
: outline_color_unselected;
now_color_outline->transition_to(from_color(outline_color_target));
const auto rectangle = container_rectangle(self);
const auto radius_round = std::min<double>(rectangle.width(), rectangle.height()) / 2.;
const auto radius_target = (types == Types::TOGGLE_SELECTED || shape == Shape::SQUARE)
? radius_round * kSquareRatio
: radius_round * 1.0;
now_container_radius->transition_to(radius_target);
}
auto get_hover_color() const noexcept -> QColor {
switch (types) {
case Types::DEFAULT:
return hover_color;
case Types::TOGGLE_UNSELECTED:
return hover_color_unselected;
case Types::TOGGLE_SELECTED:
return hover_color_selected;
}
return { /* 不可能到达的彼岸 */ };
}
auto toggle_status() -> void {
if (types == Types::TOGGLE_UNSELECTED) types = Types::TOGGLE_SELECTED;
else if (types == Types::TOGGLE_SELECTED) types = Types::TOGGLE_UNSELECTED;
}
// 设计指南上的大小全是固定的,十分不自由,故转成比例
auto container_rectangle(IconButton& self) -> QRectF {
return (width == Width::DEFAULT) ? (extract_rect(self.rect(), 1, 1))
: (width == Width::NARROW) ? (extract_rect(self.rect(), 1, kWidthRatio))
: (extract_rect(self.rect(), kWidthRatio, 1));
}
};