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UI: Change cursor when interacting with the preview

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Includes move, resize, crop, stretch, box select.
This commit is contained in:
Matt Gajownik 2020-02-15 19:44:07 +11:00 committed by jp9000
parent b8e2220b61
commit ff23eb4a24
2 changed files with 50 additions and 0 deletions
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48
UI/window-basic-preview.cpp
View File

@ -583,6 +583,25 @@ void OBSBasicPreview::mousePressEvent(QMouseEvent *event)
mousePos = startPos;
}
void OBSBasicPreview::UpdateCursor(uint32_t &flags)
{
if (!flags && cursor().shape() != Qt::OpenHandCursor)
unsetCursor();
if (cursor().shape() != Qt::ArrowCursor)
return;
if ((flags & ITEM_LEFT && flags & ITEM_TOP) ||
(flags & ITEM_RIGHT && flags & ITEM_BOTTOM))
setCursor(Qt::SizeFDiagCursor);
else if ((flags & ITEM_LEFT && flags & ITEM_BOTTOM) ||
(flags & ITEM_RIGHT && flags & ITEM_TOP))
setCursor(Qt::SizeBDiagCursor);
else if (flags & ITEM_LEFT || flags & ITEM_RIGHT)
setCursor(Qt::SizeHorCursor);
else if (flags & ITEM_TOP || flags & ITEM_BOTTOM)
setCursor(Qt::SizeVerCursor);
}
static bool select_one(obs_scene_t *scene, obs_sceneitem_t *item, void *param)
{
obs_sceneitem_t *selectedItem =
@ -685,6 +704,7 @@ void OBSBasicPreview::mouseReleaseEvent(QMouseEvent *event)
mouseMoved = false;
cropping = false;
selectionBox = false;
unsetCursor();
OBSSceneItem item = GetItemAtPos(pos, true);
@ -1090,6 +1110,9 @@ void OBSBasicPreview::BoxItems(const vec2 &startPos, const vec2 &pos)
if (!scene)
return;
if (cursor().shape() != Qt::CrossCursor)
setCursor(Qt::CrossCursor);
SceneFindBoxData data(startPos, pos);
obs_scene_enum_items(scene, FindItemsInBox, &data);
@ -1423,6 +1446,8 @@ void OBSBasicPreview::mouseMoveEvent(QMouseEvent *event)
if (locked)
return;
bool updateCursor = false;
if (mouseDown) {
vec2 pos = GetMouseEventPos(event);
@ -1458,6 +1483,8 @@ void OBSBasicPreview::mouseMoveEvent(QMouseEvent *event)
StretchItem(pos);
} else if (mouseOverItems) {
if (cursor().shape() != Qt::SizeAllCursor)
setCursor(Qt::SizeAllCursor);
selectionBox = false;
MoveItems(pos);
} else {
@ -1476,6 +1503,27 @@ void OBSBasicPreview::mouseMoveEvent(QMouseEvent *event)
std::lock_guard<std::mutex> lock(selectMutex);
hoveredPreviewItems.clear();
hoveredPreviewItems.push_back(item);
if (!mouseMoved && hoveredPreviewItems.size() > 0) {
mousePos = pos;
OBSBasic *main = reinterpret_cast<OBSBasic *>(
App()->GetMainWindow());
#ifdef SUPPORTS_FRACTIONAL_SCALING
float scale = main->devicePixelRatioF();
#else
float scale = main->devicePixelRatio();
#endif
float x = float(event->x()) - main->previewX / scale;
float y = float(event->y()) - main->previewY / scale;
vec2_set(&startPos, x, y);
updateCursor = true;
}
}
if (updateCursor) {
GetStretchHandleData(startPos);
uint32_t stretchFlags = (uint32_t)stretchHandle;
UpdateCursor(stretchFlags);
}
}

2
UI/window-basic-preview.hpp
View File

@ -92,6 +92,8 @@ private:
void GetStretchHandleData(const vec2 &pos);
void UpdateCursor(uint32_t &flags);
void SnapStretchingToScreen(vec3 &tl, vec3 &br);
void ClampAspect(vec3 &tl, vec3 &br, vec2 &size, const vec2 &baseSize);
vec3 CalculateStretchPos(const vec3 &tl, const vec3 &br);