78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
#include <pd/ultra/canvas.hpp>
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namespace PD {
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namespace Ultra {
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PD_API Canvas::Canvas() {}
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PD_API Canvas::Canvas(const PD::fvec2& size) : pViewport(size) {}
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PD_API Canvas::~Canvas() {}
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PD_API void Canvas::SetVirtualViewport(const PD::fvec2& size) {
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pVirtualViewPort = size;
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if (pVirtualViewPort.x && pVirtualViewPort.y) {
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pVfactor = std::min(pViewport.x / pVirtualViewPort.x,
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pViewport.y / pVirtualViewPort.y);
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pVoff = (pViewport - (pVirtualViewPort * pVfactor)) * 0.5f;
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}
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}
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PD_API void Canvas::SetViewport(const PD::fvec2& size) {
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pViewport = size;
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SetVirtualViewport(pVirtualViewPort); // recalculate Vfactor
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}
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PD_API PD::fvec2 Canvas::VTranslatePos(const PD::fvec2& p) const {
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return p * pVfactor + pVoff;
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}
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PD_API PD::fvec2 Canvas::TranslatePos(const PD::fvec2& p) const {
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return p * pViewport;
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}
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PD_API PD::fvec2 Canvas::VTranslateSize(const PD::fvec2& s) const {
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return s * pVfactor;
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}
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PD_API PD::fvec2 Canvas::TranslateSize(const PD::fvec2& s) const {
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return s * pViewport.y;
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}
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PD_API float Canvas::VTranslateFontscale(float f) const { return f * pVfactor; }
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PD_API float Canvas::TranslateFontscale(float f) const {
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return f * pViewport.y;
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}
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PD_API PD::Li::Rect Canvas::VTranslateObject(const PD::fvec2& pos,
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const PD::fvec2& size,
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UltraAlignment align,
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bool size_modified) const {
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PD::fvec2 nsize = size;
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if (!size_modified) nsize *= pVfactor;
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PD::fvec2 final;
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if (align & UltraAlignment_Left) {
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final.x = pos.x * pVfactor;
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} else if (align & UltraAlignment_Right) {
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final.x = pViewport.x - (pos.x * pVfactor) - nsize.x;
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} else {
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final.x = pVoff.x + (pos.x * pVfactor) - nsize.x * 0.5;
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}
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if (align & UltraAlignment_Top) {
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final.y = pos.y * pVfactor;
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} else if (align & UltraAlignment_Bot) {
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final.y = pViewport.y - (pos.y * pVfactor) - nsize.y;
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} else {
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final.y = pVoff.y + (pos.y * pVfactor) - nsize.y * 0.5;
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}
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return PD::fvec4(final, final + nsize);
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}
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PD_API PD::fvec2 Canvas::VTranslateAlignPos(const PD::fvec2& pos,
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const PD::fvec2& size,
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UltraAlignment align) const {
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return VTranslateObject(pos, size, align).TopLeft();
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}
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} // namespace Ultra
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} // namespace PD
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