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Drag and Drop: Calling BeginTooltip() between a BeginDragSource()/EndDragSource() or BeginDropTarget()/EndDropTarget() uses adjusted tooltip settings matching the one created when calling BeginDragSource() without the ImGuiDragDropFlags_SourceNoPreviewTooltip flag. (#143) + additional safety checks.
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omar
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@ -47,6 +47,8 @@ Other Changes:
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- Drag and Drop: Fixed an incorrect assert when dropping a source that is submitted after the target (bug introduced with 1.62 changes
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related to the addition of IsItemDeactivated()). (#1875, #143)
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- Drag and Drop: Fixed ImGuiDragDropFlags_SourceNoDisableHover to affect hovering state prior to calling IsItemHovered() + fixed description. (#143)
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- Drag and Drop: Calling BeginTooltip() between a BeginDragSource()/EndDragSource() or BeginDropTarget()/EndDropTarget() uses adjusted tooltip
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settings matching the one created when calling BeginDragSource() without the ImGuiDragDropFlags_SourceNoPreviewTooltip flag. (#143)
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- Misc: Added ImGuiMouseCursor_Hand cursor enum + corresponding software cursor. (#1913, 1914) [@aiekick, @ocornut]
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- Misc: Tweaked software mouse cursor offset to match the offset of the corresponding Windows 10 cursors.
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- Fixed a include build issue for Cygwin in non-POSIX (Win32) mode. (#1917, #1319, #276)
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53
imgui.cpp
53
imgui.cpp
@ -3790,6 +3790,7 @@ void ImGui::NewFrame()
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g.DragDropAcceptIdPrev = g.DragDropAcceptIdCurr;
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g.DragDropAcceptIdCurr = 0;
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g.DragDropAcceptIdCurrRectSurface = FLT_MAX;
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g.DragDropWithinSourceOrTarget = false;
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// Update keyboard input state
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memcpy(g.IO.KeysDownDurationPrev, g.IO.KeysDownDuration, sizeof(g.IO.KeysDownDuration));
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@ -5158,7 +5159,23 @@ void ImGui::SetTooltip(const char* fmt, ...)
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void ImGui::BeginTooltip()
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{
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ImGuiContext& g = *GImGui;
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if (g.DragDropWithinSourceOrTarget)
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{
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// The default tooltip position is a little offset to give space to see the context menu (it's also clamped within the current viewport/monitor)
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// In the context of a dragging tooltip we try to reduce that offset and we enforce following the cursor.
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// Whatever we do we want to call SetNextWindowPos() to enforce a tooltip position and disable clipping the tooltip without our display area, like regular tooltip do.
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//ImVec2 tooltip_pos = g.IO.MousePos - g.ActiveIdClickOffset - g.Style.WindowPadding;
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ImVec2 tooltip_pos = g.IO.MousePos + ImVec2(16 * g.Style.MouseCursorScale, 8 * g.Style.MouseCursorScale);
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SetNextWindowPos(tooltip_pos);
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SetNextWindowBgAlpha(g.Style.Colors[ImGuiCol_PopupBg].w * 0.60f);
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//PushStyleVar(ImGuiStyleVar_Alpha, g.Style.Alpha * 0.60f); // This would be nice but e.g ColorButton with checkboard has issue with transparent colors :(
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BeginTooltipEx(0, true);
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}
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else
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{
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BeginTooltipEx(0, false);
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}
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}
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void ImGui::EndTooltip()
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@ -13521,12 +13538,13 @@ bool ImGui::BeginDragDropSource(ImGuiDragDropFlags flags)
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g.DragDropSourceFlags = flags;
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g.DragDropMouseButton = mouse_button;
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}
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g.DragDropWithinSourceOrTarget = true;
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if (!(flags & ImGuiDragDropFlags_SourceNoPreviewTooltip))
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{
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// Target can request the Source to not display its tooltip (we use a dedicated flag to make this request explicit)
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// We unfortunately can't just modify the source flags and skip the call to BeginTooltip, as caller may be emitting contents.
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BeginDragDropTooltip();
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BeginTooltip();
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if (g.DragDropActive && g.DragDropAcceptIdPrev && (g.DragDropAcceptFlags & ImGuiDragDropFlags_AcceptNoPreviewTooltip))
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{
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ImGuiWindow* tooltip_window = g.CurrentWindow;
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@ -13547,32 +13565,15 @@ void ImGui::EndDragDropSource()
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{
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ImGuiContext& g = *GImGui;
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IM_ASSERT(g.DragDropActive);
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IM_ASSERT(g.DragDropWithinSourceOrTarget && "Not after a BeginDragDropSource()?");
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if (!(g.DragDropSourceFlags & ImGuiDragDropFlags_SourceNoPreviewTooltip))
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EndDragDropTooltip();
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EndTooltip();
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// Discard the drag if have not called SetDragDropPayload()
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if (g.DragDropPayload.DataFrameCount == -1)
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ClearDragDrop();
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}
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void ImGui::BeginDragDropTooltip()
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{
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// The default tooltip position is a little offset to give space to see the context menu (it's also clamped within the current viewport/monitor)
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// In the context of a dragging tooltip we try to reduce that offset and we enforce following the cursor.
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// Whatever we do we want to call SetNextWindowPos() to enforce a tooltip position and disable clipping the tooltip without our display area, like regular tooltip do.
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ImGuiContext& g = *GImGui;
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//ImVec2 tooltip_pos = g.IO.MousePos - g.ActiveIdClickOffset - g.Style.WindowPadding;
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ImVec2 tooltip_pos = g.IO.MousePos + ImVec2(16 * g.Style.MouseCursorScale, 8 * g.Style.MouseCursorScale);
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SetNextWindowPos(tooltip_pos);
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SetNextWindowBgAlpha(g.Style.Colors[ImGuiCol_PopupBg].w * 0.60f);
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//PushStyleVar(ImGuiStyleVar_Alpha, g.Style.Alpha * 0.60f); // This would be nice but e.g ColorButton with checkboard has issue with transparent colors :(
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BeginTooltipEx(0, true);
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}
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void ImGui::EndDragDropTooltip()
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{
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EndTooltip();
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g.DragDropWithinSourceOrTarget = false;
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}
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// Use 'cond' to choose to submit payload on drag start or every frame
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@ -13632,8 +13633,10 @@ bool ImGui::BeginDragDropTargetCustom(const ImRect& bb, ImGuiID id)
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if (!IsMouseHoveringRect(bb.Min, bb.Max) || (id == g.DragDropPayload.SourceId))
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return false;
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IM_ASSERT(g.DragDropWithinSourceOrTarget == false);
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g.DragDropTargetRect = bb;
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g.DragDropTargetId = id;
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g.DragDropWithinSourceOrTarget = true;
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return true;
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}
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@ -13660,8 +13663,10 @@ bool ImGui::BeginDragDropTarget()
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if (g.DragDropPayload.SourceId == id)
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return false;
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IM_ASSERT(g.DragDropWithinSourceOrTarget == false);
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g.DragDropTargetRect = display_rect;
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g.DragDropTargetId = id;
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g.DragDropWithinSourceOrTarget = true;
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return true;
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}
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@ -13717,8 +13722,10 @@ const ImGuiPayload* ImGui::AcceptDragDropPayload(const char* type, ImGuiDragDrop
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// We don't really use/need this now, but added it for the sake of consistency and because we might need it later.
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void ImGui::EndDragDropTarget()
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{
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ImGuiContext& g = *GImGui; (void)g;
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ImGuiContext& g = *GImGui;
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IM_ASSERT(g.DragDropActive);
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IM_ASSERT(g.DragDropWithinSourceOrTarget);
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g.DragDropWithinSourceOrTarget = false;
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}
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//-----------------------------------------------------------------------------
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@ -13944,7 +13951,7 @@ void ImGui::ShowMetricsWindow(bool* p_open)
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(flags & ImGuiWindowFlags_Modal) ? "Modal " : "", (flags & ImGuiWindowFlags_ChildMenu) ? "ChildMenu " : "", (flags & ImGuiWindowFlags_NoSavedSettings) ? "NoSavedSettings " : "",
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(flags & ImGuiWindowFlags_AlwaysAutoResize) ? "AlwaysAutoResize" : "");
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ImGui::BulletText("Scroll: (%.2f/%.2f,%.2f/%.2f)", window->Scroll.x, GetScrollMaxX(window), window->Scroll.y, GetScrollMaxY(window));
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ImGui::BulletText("Active: %d, WriteAccessed: %d", window->Active, window->WriteAccessed);
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ImGui::BulletText("Active: %d, WriteAccessed: %d", window->Active || window->WasActive, window->WriteAccessed);
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ImGui::BulletText("NavLastIds: 0x%08X,0x%08X, NavLayerActiveMask: %X", window->NavLastIds[0], window->NavLastIds[1], window->DC.NavLayerActiveMask);
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ImGui::BulletText("NavLastChildNavWindow: %s", window->NavLastChildNavWindow ? window->NavLastChildNavWindow->Name : "NULL");
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if (!window->NavRectRel[0].IsInverted())
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@ -692,6 +692,7 @@ struct ImGuiContext
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// Drag and Drop
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bool DragDropActive;
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bool DragDropWithinSourceOrTarget;
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ImGuiDragDropFlags DragDropSourceFlags;
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int DragDropMouseButton;
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ImGuiPayload DragDropPayload;
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@ -810,7 +811,7 @@ struct ImGuiContext
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OverlayDrawList._OwnerName = "##Overlay"; // Give it a name for debugging
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MouseCursor = ImGuiMouseCursor_Arrow;
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DragDropActive = false;
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DragDropActive = DragDropWithinSourceOrTarget = false;
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DragDropSourceFlags = 0;
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DragDropMouseButton = -1;
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DragDropTargetId = 0;
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@ -1130,8 +1131,6 @@ namespace ImGui
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IMGUI_API bool BeginDragDropTargetCustom(const ImRect& bb, ImGuiID id);
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IMGUI_API void ClearDragDrop();
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IMGUI_API bool IsDragDropPayloadBeingAccepted();
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IMGUI_API void BeginDragDropTooltip();
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IMGUI_API void EndDragDropTooltip();
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// FIXME-WIP: New Columns API
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IMGUI_API void BeginColumns(const char* str_id, int count, ImGuiColumnsFlags flags = 0); // setup number of columns. use an identifier to distinguish multiple column sets. close with EndColumns().
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