C++ (Cpp) obs_sceneitem_setscale Examples

Example #1

File: test.cpp Project: ClockwerkKaiser/obs-studio

static void AddTestItems(obs_scene_t scene, obs_source_t source)
{
	obs_sceneitem_t item = NULL;
	struct vec2 scale;

	vec2_set(&scale, 20.0f, 20.0f);

	item = obs_scene_add(scene, source);
	obs_sceneitem_setscale(item, &scale);
}

Example #2

File: window-basic-preview.cpp Project: antihax/obs-studio

void OBSBasicPreview::StretchItem(const vec2 &pos)
{
	Qt::KeyboardModifiers modifiers = QGuiApplication::keyboardModifiers();
	obs_bounds_type boundsType = obs_sceneitem_get_bounds_type(stretchItem);
	uint32_t stretchFlags = (uint32_t)stretchHandle;
	bool shiftDown = (modifiers & Qt::ShiftModifier);
	vec3 tl, br, pos3;

	vec3_zero(&tl);
	vec3_set(&br, stretchItemSize.x, stretchItemSize.y, 0.0f);

	vec3_set(&pos3, pos.x, pos.y, 0.0f);
	vec3_transform(&pos3, &pos3, &screenToItem);

	if (stretchFlags & ITEM_LEFT)
		tl.x = pos3.x;
	else if (stretchFlags & ITEM_RIGHT)
		br.x = pos3.x;

	if (stretchFlags & ITEM_TOP)
		tl.y = pos3.y;
	else if (stretchFlags & ITEM_BOTTOM)
		br.y = pos3.y;

	if (!(modifiers & Qt::ControlModifier))
		SnapStretchingToScreen(tl, br);

	obs_source_t source = obs_sceneitem_getsource(stretchItem);

	vec2 baseSize;
	vec2_set(&baseSize,
		float(obs_source_getwidth(source)),
		float(obs_source_getheight(source)));

	vec2 size;
	vec2_set(&size,br. x - tl.x, br.y - tl.y);

	if (boundsType != OBS_BOUNDS_NONE) {
		if (shiftDown)
			ClampAspect(tl, br, size, baseSize);

		if (tl.x > br.x) std::swap(tl.x, br.x);
		if (tl.y > br.y) std::swap(tl.y, br.y);

		vec2_abs(&size, &size);

		obs_sceneitem_set_bounds(stretchItem, &size);
	} else {
		if (!shiftDown)
			ClampAspect(tl, br, size, baseSize);

		vec2_div(&size, &size, &baseSize);
		obs_sceneitem_setscale(stretchItem, &size);
	}

	pos3 = CalculateStretchPos(tl, br);
	vec3_transform(&pos3, &pos3, &itemToScreen);

	vec2 newPos;
	vec2_set(&newPos, std::round(pos3.x), std::round(pos3.y));
	obs_sceneitem_setpos(stretchItem, &newPos);
}