2c5aa87468
Adds the ability to lock the preview so sources can't be edited. This feature is typically used in the case where the user wants to prevent accidentally clicking and dragging on sources.
95 lines
2.7 KiB
C++
95 lines
2.7 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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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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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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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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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 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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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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/* 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 boundry. */
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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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