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#pragma once
#include "../content_control.hpp"
#include "../click_detector.hpp"
#include "../render/border_render_object.hpp"
#include "cru/platform/native/basic_types.hpp"
#include <memory>
namespace cru::ui::controls {
using render::CornerRadius;
struct ButtonStateStyle {
std::shared_ptr<platform::graph::IBrush> border_brush;
Thickness border_thickness;
CornerRadius border_radius;
std::shared_ptr<platform::graph::IBrush> foreground_brush;
std::shared_ptr<platform::graph::IBrush> background_brush;
};
struct ButtonStyle {
// corresponds to ButtonState::Normal
ButtonStateStyle normal;
// corresponds to ButtonState::Hover
ButtonStateStyle hover;
// corresponds to ButtonState::Press
ButtonStateStyle press;
// corresponds to ButtonState::PressCancel
ButtonStateStyle press_cancel;
};
enum class ButtonState {
// mouse is not in it
Normal,
// mouse is in it and not pressed
Hover,
// mouse is pressed in it
Press,
// mouse is pressed outside button
PressCancel,
};
class Button : public ContentControl {
public:
static constexpr std::string_view control_type = "Button";
static Button* Create() { return new Button(); }
protected:
Button();
public:
Button(const Button& other) = delete;
Button(Button&& other) = delete;
Button& operator=(const Button& other) = delete;
Button& operator=(Button&& other) = delete;
~Button() override = default;
std::string_view GetControlType() const final {
return control_type;
}
render::RenderObject* GetRenderObject() const override;
public:
const ButtonStyle& GetStyle() const { return style_; }
void SetStyle(ButtonStyle style);
ButtonState GetState() const { return state_; }
// Get the trigger mouse button(s). Return value might be a union of Left,
// Middle and Right.
MouseButton GetTriggerButton() const { return trigger_button_; }
// Set the trigger mouse button(s). You can set multiple buttons by passing a
// union of Left, Middle and Right. If you disable a button when user is
// pressing the same one, click will be stopped.
// Default is only Left.
void SetTriggerButton(MouseButton newTrigger);
protected:
void OnChildChanged(Control* old_child, Control* new_child) override;
virtual void OnStateChange(ButtonState oldState, ButtonState newState);
private:
void SetState(ButtonState newState) {
if (state_ == newState) return;
const auto oldState = state_;
state_ = newState;
OnStateChange(oldState, newState);
}
private:
std::unique_ptr<render::BorderRenderObject> render_object_{};
ButtonState state_ = ButtonState::Normal;
MouseButton trigger_button_ = MouseButton::Left;
ButtonStyle style_;
ClickDetector click_detector_;
};
} // namespace cru::ui::controls
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