114 lines
3.3 KiB
C++
114 lines
3.3 KiB
C++
#pragma once
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#include <obs.hpp>
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#include <graphics/vec2.h>
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#include <graphics/matrix4.h>
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#include "qt-display.hpp"
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#include "obs-app.hpp"
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class OBSBasic;
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class QMouseEvent;
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#define ITEM_LEFT (1<<0)
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#define ITEM_RIGHT (1<<1)
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#define ITEM_TOP (1<<2)
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#define ITEM_BOTTOM (1<<3)
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enum class ItemHandle : uint32_t {
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None = 0,
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TopLeft = ITEM_TOP | ITEM_LEFT,
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TopCenter = ITEM_TOP,
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TopRight = ITEM_TOP | ITEM_RIGHT,
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CenterLeft = ITEM_LEFT,
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CenterRight = ITEM_RIGHT,
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BottomLeft = ITEM_BOTTOM | ITEM_LEFT,
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BottomCenter = ITEM_BOTTOM,
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BottomRight = ITEM_BOTTOM | ITEM_RIGHT
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};
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enum class ScalingMode : uint32_t {
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Window = 0,
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Canvas = 1,
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Output = 2
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};
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class OBSBasicPreview : public OBSQTDisplay {
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Q_OBJECT
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private:
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obs_sceneitem_crop startCrop;
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vec2 startItemPos;
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vec2 cropSize;
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OBSSceneItem stretchItem;
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ItemHandle stretchHandle = ItemHandle::None;
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ScalingMode scale = ScalingMode::Window;
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vec2 stretchItemSize;
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matrix4 screenToItem;
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matrix4 itemToScreen;
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vec2 startPos;
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vec2 lastMoveOffset;
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vec2 scrollingFrom;
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vec2 scrollingOffset;
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bool mouseDown = false;
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bool mouseMoved = false;
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bool mouseOverItems = false;
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bool cropping = false;
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bool locked = false;
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bool scrollMode = false;
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static vec2 GetMouseEventPos(QMouseEvent *event);
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static bool DrawSelectedItem(obs_scene_t *scene, obs_sceneitem_t *item,
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void *param);
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static OBSSceneItem GetItemAtPos(const vec2 &pos, bool selectBelow);
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static bool SelectedAtPos(const vec2 &pos);
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static void DoSelect(const vec2 &pos);
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static void DoCtrlSelect(const vec2 &pos);
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static vec3 GetSnapOffset(const vec3 &tl, const vec3 &br);
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void GetStretchHandleData(const vec2 &pos);
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void SnapStretchingToScreen(vec3 &tl, vec3 &br);
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void ClampAspect(vec3 &tl, vec3 &br, vec2 &size, const vec2 &baseSize);
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vec3 CalculateStretchPos(const vec3 &tl, const vec3 &br);
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void CropItem(const vec2 &pos);
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void StretchItem(const vec2 &pos);
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static void SnapItemMovement(vec2 &offset);
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void MoveItems(const vec2 &pos);
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void ProcessClick(const vec2 &pos);
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public:
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OBSBasicPreview(QWidget *parent, Qt::WindowFlags flags = 0);
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virtual void keyPressEvent(QKeyEvent *event) override;
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virtual void keyReleaseEvent(QKeyEvent *event) override;
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virtual void mousePressEvent(QMouseEvent *event) override;
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virtual void mouseReleaseEvent(QMouseEvent *event) override;
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virtual void mouseMoveEvent(QMouseEvent *event) override;
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void DrawSceneEditing();
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void ResetScrollingOffset();
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inline void SetLocked(bool newLockedVal) {locked = newLockedVal;}
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inline void ToggleLocked() {locked = !locked;}
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inline bool Locked() const {return locked;}
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inline void SetScaling(ScalingMode newScaledVal) {scale = newScaledVal;}
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inline ScalingMode GetScalingMode() const {return scale;}
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inline float ScrollX() const {return scrollingOffset.x;}
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inline float ScrollY() const {return scrollingOffset.y;}
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/* use libobs allocator for alignment because the matrices itemToScreen
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* and screenToItem may contain SSE data, which will cause SSE
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* instructions to crash if the data is not aligned to at least a 16
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* byte boundary. */
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static inline void* operator new(size_t size) {return bmalloc(size);}
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static inline void operator delete(void* ptr) {bfree(ptr);}
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};
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