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#pragma once
#include "pre.hpp"
#include <d2d1_1.h>
#include <functional>
#include "exception.hpp"
#include "graph_manager.hpp"
namespace cru::graph {
struct Dpi {
float x;
float y;
};
inline Dpi GetDpi() {
Dpi dpi;
GraphManager::GetInstance()->GetD2D1Factory()->GetDesktopDpi(&dpi.x, &dpi.y);
return dpi;
}
inline int DipToPixelInternal(const float dip, const float dpi) {
return static_cast<int>(dip * dpi / 96.0f);
}
inline int DipToPixelX(const float dip_x) {
return DipToPixelInternal(dip_x, GetDpi().x);
}
inline int DipToPixelY(const float dip_y) {
return DipToPixelInternal(dip_y, GetDpi().y);
}
inline float DipToPixelInternal(const int pixel, const float dpi) {
return static_cast<float>(pixel) * 96.0f / dpi;
}
inline float PixelToDipX(const int pixel_x) {
return DipToPixelInternal(pixel_x, GetDpi().x);
}
inline float PixelToDipY(const int pixel_y) {
return DipToPixelInternal(pixel_y, GetDpi().y);
}
inline void WithTransform(
ID2D1RenderTarget* render_target, const D2D1_MATRIX_3X2_F matrix,
const std::function<void(ID2D1RenderTarget*)>& action) {
D2D1_MATRIX_3X2_F old_transform;
render_target->GetTransform(&old_transform);
render_target->SetTransform(old_transform * matrix);
action(render_target);
render_target->SetTransform(old_transform);
}
inline ID2D1SolidColorBrush* CreateSolidColorBrush(const D2D1_COLOR_F& color) {
ID2D1SolidColorBrush* brush;
ThrowIfFailed(GraphManager::GetInstance()
->GetD2D1DeviceContext()
->CreateSolidColorBrush(color, &brush));
return brush;
}
} // namespace cru::graph
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