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[client] egl: implement nicer drag & drop re-ordering of filters

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This commit is contained in:
Geoffrey McRae 2021-08-24 22:05:46 +10:00
parent e5e76d784e
commit b118c3b681
1 changed files with 58 additions and 16 deletions
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74
client/renderers/EGL/postprocess.c
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@ -52,49 +52,91 @@ void egl_postProcessEarlyInit(void)
EGL_Filters[i]->earlyInit();
}
static void drawDropTarget(void)
{
igPushStyleColorVec4(ImGuiCol_Separator, (ImVec4) { 1.0f, 1.0f, 0.0f, 1.0f });
igSeparator();
igPopStyleColor(1);
}
static void configUI(void * opaque, int * id)
{
struct EGL_PostProcess * this = opaque;
bool redraw = false;
size_t moveIdx = 0;
float lastBegin = 0.0f;
ImVec2 window;
static size_t mouseIdx = -1;
static bool moving = false;
static size_t moveIdx = 0;
bool doMove = false;
ImVec2 window, pos;
igGetWindowPos(&window);
igGetMousePos(&pos);
EGL_Filter ** filters = vector_data(this->filters);
size_t count = vector_size(this->filters);
for (size_t i = 0; i < count; ++i)
{
EGL_Filter * filter = filters[i];
float begin = igGetCursorPosY();
if (moving && mouseIdx < moveIdx && i == mouseIdx)
drawDropTarget();
igPushIDPtr(filter);
bool draw = igCollapsingHeaderBoolPtr(filter->ops.name, NULL, 0);
if (igIsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByActiveItem))
mouseIdx = i;
bool active = igIsItemActive();
if (draw)
redraw |= egl_filterImguiConfig(filter);
igPopID();
if (active && igIsMouseDragging(ImGuiMouseButton_Left, -1.0f))
if (moving)
{
ImVec2 pos;
igGetMousePos(&pos);
if (i > 0 && pos.y - window.y < (lastBegin + begin) / 2.0f)
moveIdx = i;
else if (i + 1 < count && pos.y - window.y > igGetCursorPosY())
moveIdx = i + 1;
if (!igIsMouseDragging(ImGuiMouseButton_Left, -1.0f))
{
moving = false;
doMove = true;
}
}
else
if (active && igIsMouseDragging(ImGuiMouseButton_Left, -1.0f))
{
moveIdx = mouseIdx;
moving = true;
}
lastBegin = begin;
if (moving && mouseIdx > moveIdx && i == mouseIdx)
drawDropTarget();
}
if (moveIdx)
if (moving)
{
EGL_Filter * tmp = filters[moveIdx];
filters[moveIdx] = filters[moveIdx - 1];
filters[moveIdx - 1] = tmp;
igSetMouseCursor(ImGuiMouseCursor_Hand);
igSetTooltip(filters[moveIdx]->ops.name);
}
if (doMove)
{
EGL_Filter * tmp[count];
memcpy(tmp, filters, sizeof(*tmp) * count);
size_t s = 0, d = 0;
for(size_t i = 0; i < count; ++i)
{
if (i == mouseIdx)
{
filters[d++] = tmp[moveIdx];
continue;
}
if (s == moveIdx)
++s;
filters[d++] = tmp[s++];
}
}
if (redraw)