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#include "cru/ui/controls/button.hpp"
#include <memory>
#include "cru/platform/graph/brush.hpp"
#include "cru/platform/graph/graph_factory.hpp"
#include "cru/platform/native/cursor.hpp"
#include "cru/platform/native/native_window.hpp"
#include "cru/platform/native/ui_application.hpp"
#include "cru/ui/render/border_render_object.hpp"
#include "cru/ui/ui_manager.hpp"
#include "cru/ui/window.hpp"
namespace cru::ui::controls {
using platform::native::GetSystemCursor;
using platform::native::SystemCursor;
namespace {
void Set(render::BorderRenderObject* o, const ButtonStateStyle& s) {
o->SetBorderBrush(s.border_brush);
o->SetBorderThickness(s.border_thickness);
o->SetBorderRadius(s.border_radius);
o->SetForegroundBrush(s.foreground_brush);
o->SetBackgroundBrush(s.background_brush);
}
} // namespace
Button::Button() : click_detector_(this) {
style_ = UiManager::GetInstance()->GetThemeResources()->button_style;
render_object_.reset(new render::BorderRenderObject);
render_object_->SetAttachedControl(this);
Set(render_object_.get(), style_.normal);
render_object_->SetBorderEnabled(true);
MouseEnterEvent()->Direct()->AddHandler([this](event::MouseEventArgs& args) {
if (click_detector_.GetPressingButton() & trigger_button_) {
SetState(ButtonState::Press);
} else {
SetState(ButtonState::Hover);
}
});
MouseLeaveEvent()->Direct()->AddHandler([this](event::MouseEventArgs& args) {
if (click_detector_.GetPressingButton() & trigger_button_) {
SetState(ButtonState::Normal);
} else {
SetState(ButtonState::PressCancel);
}
});
click_detector_.ClickBeginEvent()->AddHandler([this](MouseButton button) {
if (button & trigger_button_) {
SetState(ButtonState::Press);
}
});
click_detector_.ClickEndEvent()->AddHandler([this](MouseButton button) {
if (button & trigger_button_) {
SetState(ButtonState::Hover);
}
});
}
render::RenderObject* Button::GetRenderObject() const {
return render_object_.get();
}
void Button::OnChildChanged(Control* old_child, Control* new_child) {
if (old_child != nullptr) render_object_->RemoveChild(0);
if (new_child != nullptr)
render_object_->AddChild(new_child->GetRenderObject(), 0);
}
void Button::OnStateChange(ButtonState oldState, ButtonState newState) {
switch (newState) {
case ButtonState::Normal:
Set(render_object_.get(), style_.normal);
SetCursor(GetSystemCursor(SystemCursor::Arrow));
break;
case ButtonState::Hover:
Set(render_object_.get(), style_.hover);
SetCursor(GetSystemCursor(SystemCursor::Hand));
break;
case ButtonState::Press:
Set(render_object_.get(), style_.press);
SetCursor(GetSystemCursor(SystemCursor::Hand));
break;
case ButtonState::PressCancel:
Set(render_object_.get(), style_.press_cancel);
SetCursor(GetSystemCursor(SystemCursor::Arrow));
break;
}
GetWindow()->GetNativeWindow()->Repaint();
}
} // namespace cru::ui::controls
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