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

387 lines
14 KiB
C++

//
// Created by Lenn on 2025/10/14.
//
#ifndef TOUCHSENSOR_SELECT_IMPL_HH
#define TOUCHSENSOR_SELECT_IMPL_HH
#include <qabstractitemview.h>
#include "select.hh"
#include "modern-qt/utility/animation/animatable.hh"
#include "modern-qt/utility/animation/state/pid.hh"
#include "modern-qt/utility/animation/transition.hh"
#include "modern-qt/utility/painter/common.hh"
#include "modern-qt/utility/painter/container.hh"
#include "modern-qt/utility/painter/helper.hh"
#include "modern-qt/utility/painter/shape.hh"
#include "qpainter.h"
#include "qpainterpath.h"
#include "select.hh"
using namespace creeper::select_widget::internal;
struct BasicSelect::Impl {
public:
explicit Impl(BasicSelect& self) noexcept
: self{self}, animatable{self} {
{
auto state = std::make_shared<PidState<double>>();
state->config.kp = 20.0;
state->config.ki = 00.0;
state->config.kd = 00.0;
state->config.epsilon = 1e-2;
label_position = make_transition(animatable, std::move(state));
}
set_measurements(Measurements{});
}
auto set_color_scheme(const ColorScheme& scheme) -> void {
color_specs.enabled.container = scheme.surface_container_highest;
color_specs.enabled.label_text = scheme.on_surface_variant;
color_specs.enabled.selected_text = scheme.on_surface_variant;
color_specs.enabled.leading_icon = scheme.on_surface_variant;
color_specs.enabled.active_indicator = scheme.on_surface_variant;
color_specs.enabled.supporting_text = scheme.on_surface_variant;
color_specs.enabled.input_text = scheme.on_surface;
color_specs.enabled.caret = scheme.primary;
color_specs.enabled.outline = scheme.outline;
color_specs.disabled.container = scheme.on_surface;
color_specs.disabled.container.setAlphaF(0.04);
color_specs.disabled.label_text = scheme.on_surface;
color_specs.disabled.label_text.setAlphaF(0.38);
color_specs.disabled.selected_text = scheme.on_surface;
color_specs.disabled.selected_text.setAlphaF(0.04);
color_specs.disabled.leading_icon = scheme.on_surface;
color_specs.disabled.leading_icon.setAlphaF(0.38);
color_specs.disabled.supporting_text = scheme.on_surface;
color_specs.disabled.supporting_text.setAlphaF(0.38);
color_specs.disabled.input_text = scheme.on_surface;
color_specs.disabled.input_text.setAlphaF(0.38);
color_specs.disabled.active_indicator = scheme.on_surface;
color_specs.disabled.active_indicator.setAlphaF(0.38);
color_specs.disabled.outline = scheme.outline;
color_specs.disabled.outline.setAlphaF(0.38);
color_specs.focused.container = scheme.surface_container_highest;
color_specs.focused.label_text = scheme.primary;
color_specs.focused.selected_text = scheme.on_surface_variant;
color_specs.focused.leading_icon = scheme.on_surface_variant;
color_specs.focused.input_text = scheme.on_surface;
color_specs.focused.supporting_text = scheme.on_surface_variant;
color_specs.focused.active_indicator = scheme.primary;
color_specs.focused.outline = scheme.primary;
color_specs.error.container = scheme.surface_container_highest;
color_specs.error.active_indicator = scheme.error;
color_specs.error.label_text = scheme.error;
color_specs.error.selected_text = scheme.on_surface;
color_specs.error.input_text = scheme.on_surface;
color_specs.error.supporting_text = scheme.error;
color_specs.error.leading_icon = scheme.on_surface_variant;
color_specs.error.caret = scheme.error;
color_specs.error.outline = scheme.error;
color_specs.state_layer = scheme.on_surface;
color_specs.state_layer.setAlphaF(0.08);
color_specs.selection_container = scheme.primary;
color_specs.selection_container.setAlphaF(0.38);
const auto& color = get_color_tokens();
sync_basic_text_style(
color.input_text,
scheme.surface_container_highest,
color.input_text,
color_specs.selection_container,
color_specs.selection_container
);
}
auto load_theme_manager(ThemeManager& manager) -> void {
manager.append_handler(&self, [this](const ThemeManager& manager) {
set_color_scheme(manager.color_scheme());
});
}
auto set_label_text(const QString& text) -> void { label_text = text; }
auto set_leading_icon(const QString& code, const QString& font) -> void {
leading_icon_code = code;
leading_icon_font = font;
is_update_component_status = false;
}
auto set_measurements(const Measurements& measurements) -> void {
this->measurements = measurements;
self.setFixedHeight(measurements.container_height + measurements.standard_font_height);
is_update_component_status = false;
}
auto paint_filled(QPaintEvent*) -> void {
const auto rect = self.rect();
const auto color = get_color_tokens();
constexpr auto container_radius = 5;
update_component_status();
auto painter = QPainter{&self};
{
util::PainterHelper{painter}
.set_render_hint(QPainter::Antialiasing)
.rounded_rectangle(color.container, Qt::transparent, 0,
rect, container_radius, container_radius, 0, 0);
}
{
const auto p0 = rect.bottomLeft();
const auto p1 = rect.bottomRight();
painter.setBrush(Qt::NoBrush);
painter.setPen(QPen{color.active_indicator, filled_line_width()});
painter.drawLine(p0, p1);
}
if (!leading_icon.isNull()) {
// TODO: 要不要画个默认的
}
else if (!leading_icon_code.isEmpty()){
const auto rect = QRectF {
1.0 * (self.width() - self.textMargins().right() - measurements.icon_rect_size),
0.5 * (self.height() - measurements.icon_rect_size),
1.0 * measurements.icon_rect_size,
1.0 * measurements.icon_rect_size,
};
painter.save();
painter.setBrush(Qt::NoBrush);
painter.setPen(QPen {color.leading_icon});
painter.setFont(leading_icon_font);
const auto icon_center = rect.center();
painter.translate(icon_center);
const bool is_active = (self.view() && self.view()->isVisible());
painter.rotate(is_active ? 180.0 : 0.0);
painter.translate(-icon_center);
painter.drawText(rect, leading_icon_code, {Qt::AlignCenter});
painter.restore();
}
if (!label_text.isEmpty()) {
const auto margins = self.textMargins();
const auto center_label_padding = 0.5 * (measurements.container_height);
const auto rect_center = QRectF {
QPointF {static_cast<double>(margins.left()), center_label_padding},
QPointF (self.width() - margins.right(), self.height() - center_label_padding),
};
const auto rect_top = QRectF {
QPointF (margins.left(), measurements.col_padding),
QPointF (self.width() - margins.right(), margins.top()),
};
const auto position = self.currentText().isEmpty() ? *label_position : 1.;
const auto label_rect = animate::interpolate(rect_center, rect_top, position);
const auto scale = 1. - position * 0.25;
painter.save();
const auto label_anchor = QPointF {label_rect.left(), label_rect.center().y()};
painter.translate(label_anchor);
painter.scale(scale, scale);
painter.translate(-label_anchor);
painter.setBrush(Qt::NoBrush);
painter.setPen(QPen {color.label_text});
painter.setFont(standard_text_font);
painter.setRenderHint(QPainter::Antialiasing);
painter.drawText(label_rect, label_text, {Qt::AlignVCenter | Qt::AlignLeading});
painter.restore();
if (self.currentIndex() != -1) {
qDebug() << "paint currentText index: " << self.currentIndex();
painter.save();
const auto rect_center_selected = QRectF {
QPointF {static_cast<double>(margins.left()), center_label_padding},
QPointF (self.width() - margins.right(), self.height() - 0.5 * center_label_padding),
};
painter.setBrush(Qt::NoBrush);
painter.setPen(QPen {color.selected_text});
painter.setFont(standard_text_font);
painter.setRenderHint(QPainter::Antialiasing);
painter.drawText(rect_center_selected, self.currentText(), Qt::AlignVCenter | Qt::AlignLeading);
painter.restore();
}
}
else if (!label_text.isEmpty() && self.currentIndex() != -1) {
const auto selected_text = self.currentText();
const auto position = self.currentText().isEmpty() ? *label_position : 1.;
}
if (is_hovered) {
util::PainterHelper{painter}
.set_render_hint(QPainter::Antialiasing)
.rounded_rectangle(color_specs.state_layer, Qt::transparent, 0, rect,
container_radius, container_radius, 0, 0);
}
}
auto enter_event(qt::EnterEvent*) -> void {
is_hovered = true;
self.update();
}
auto leave_event(QEvent*) -> void {
is_hovered = false;
self.update();
}
auto focus_in(QFocusEvent*) -> void {
is_focused = true;
update_label_position();
self.update();
}
auto focus_out(QFocusEvent*) -> void {
is_focused = false;
update_label_position();
self.update();
}
auto show_popup() -> void {
if (self.count() == 0) {
return;
}
is_active = true;
self.QComboBox::showPopup();
update_label_position();
self.update();
}
auto hide_popup() -> void {
is_active = false;
self.QComboBox::hidePopup();
update_label_position();
self.update();
}
private:
auto update_component_status() -> void {
if (is_update_component_status) return;
auto font = self.font();
font.setPixelSize(measurements.standard_font_height);
self.setFont(font);
standard_text_font = self.font();
standard_text_font.setPixelSize(measurements.standard_font_height);
is_update_component_status = true;
}
auto update_label_position() -> void {
if ((is_focused || is_active) && self.currentIndex() != -1) {
label_position->transition_to(1.0);
} else if (is_focused || is_active) {
label_position->transition_to(1.0);
} else {
label_position->transition_to(0.0);
}
}
auto sync_basic_text_style(const QColor& text, const QColor& background,
const QColor& selection_text, const QColor& selection_background,
const QColor& hover) -> void {
constexpr auto to_rgba = [](const QColor& color) {
return QStringLiteral("rgba(%1, %2, %3, %4)")
.arg(color.red())
.arg(color.green())
.arg(color.blue())
.arg(color.alpha());
};
constexpr auto kQComboBoxStyle = R"(
QComboBox QAbstractItemView {
border: none;
background-color: %1;
outline: none;
}
QComboBox QAbstractItemView::item {
padding: 3px 5px;
color: %2;
}
QComboBox QAbstractItemView::item:selected {
background-color: %3;
color: %4;
}
QComboBox QAbstractItemView::item:hover {
background-color: %5;
color: %6;
}
)";
const auto qss = QString {kQComboBoxStyle};
self.setStyleSheet(qss.arg(to_rgba(background))
.arg(to_rgba(text))
.arg(to_rgba(selection_background))
.arg(to_rgba(selection_text))
.arg(to_rgba(hover))
.arg(to_rgba(text)));
// self.setStyleSheet(qss.arg(to_rgba(text))
// .arg(to_rgba(background))
// .arg(to_rgba(selection_text))
// .arg(to_rgba(selection_background)));
}
auto get_color_tokens() const -> ColorSpace::Tokens const& {
return is_disable ? color_specs.disabled
: is_error ? color_specs.error
: is_active ? color_specs.focused
: is_focused ? color_specs.focused
: color_specs.enabled;
}
auto filled_line_width() const -> double {
constexpr auto normal_width = 1;
constexpr auto active_width = 3;
return (is_focused && !is_disable) ? active_width : normal_width;
}
constexpr auto measure_text(const QFont& font, const QString& text, const QTextOption& options)
-> double {
const auto fm = QFontMetricsF(font);
const auto size = fm.size(Qt::TextSingleLine, text);
return size.width();
}
private:
Measurements measurements;
ColorSpace color_specs;
bool is_disable = false;
bool is_hovered = false;
bool is_focused = false;
bool is_error = false;
bool is_update_component_status = false;
bool is_active = false;
QString label_text;
QIcon leading_icon;
QString leading_icon_code;
QString leading_font_name;
QFont leading_icon_font;
QFont standard_text_font;
Animatable animatable;
std::unique_ptr<TransitionValue<PidState<double>>> label_position;
std::unique_ptr<TransitionValue<PidState<double>>> rotation_angle;
BasicSelect& self;
};
#endif //TOUCHSENSOR_SELECT_IMPL_HH