diff --git a/docs/CHANGELOG.txt b/docs/CHANGELOG.txt index 56f6ca796..673ec1c2e 100644 --- a/docs/CHANGELOG.txt +++ b/docs/CHANGELOG.txt @@ -87,6 +87,8 @@ Other changes: - Mostly legacy behavior when used inside old Columns(), as we favored that idiom back then, only different is left position follows indentation level, to match calling a Separator() inside or outside Columns(). +- Drag and Drop: Fixed submitting a tooltip from drop target location when using AcceptDragDropPayload() + with ImGuiDragDropFlags_AcceptNoPreviewTooltip and submitting a tooltip manually. - Tables: Fixed an edge-case when no columns are visible + table scrollbar is visible + user code is always testing return value of TableSetColumnIndex() to coarse clip. With an active clipper it would have asserted. Without a clipper, the scrollbar range would be wrong. @@ -123,6 +125,7 @@ Other changes: - Debug Tools: Metrics: Added "Show groups rectangles" in tools. - ImDrawList: Added AddEllipse(), AddEllipseFilled(), PathEllipticalArcTo(). (#2743) [@Doohl] - ImVector: Added find_index() helper. +- Demo: Added "Drag and Drop -> Tooltip at target location" demo. - Backends: GLFW: Clear emscripten's MouseWheel callback before shutdown. (#6790, #6096, #4019) [@halx99] - Backends: Win32: Added support for keyboard codepage conversion for when application is compiled in MBCS mode and using a non-Unicode window. (#6785, #6782, #5725, #5961) [@sneakyevil] diff --git a/imgui.cpp b/imgui.cpp index c65df0b1d..3b679fc31 100644 --- a/imgui.cpp +++ b/imgui.cpp @@ -12403,6 +12403,14 @@ void ImGui::ClearDragDrop() memset(&g.DragDropPayloadBufLocal, 0, sizeof(g.DragDropPayloadBufLocal)); } +bool ImGui::BeginTooltipHidden() +{ + ImGuiContext& g = *GImGui; + bool ret = Begin("##Tooltip_Hidden", NULL, ImGuiWindowFlags_Tooltip | ImGuiWindowFlags_NoInputs | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_AlwaysAutoResize); + SetWindowHiddendAndSkipItemsForCurrentFrame(g.CurrentWindow); + return ret; +} + // When this returns true you need to: a) call SetDragDropPayload() exactly once, b) you may render the payload visual/description, c) call EndDragDropSource() // If the item has an identifier: // - This assume/require the item to be activated (typically via ButtonBehavior). @@ -12505,12 +12513,13 @@ bool ImGui::BeginDragDropSource(ImGuiDragDropFlags flags) { // Target can request the Source to not display its tooltip (we use a dedicated flag to make this request explicit) // We unfortunately can't just modify the source flags and skip the call to BeginTooltip, as caller may be emitting contents. - bool ret = BeginTooltip(); + bool ret; + if (g.DragDropAcceptIdPrev && (g.DragDropAcceptFlags & ImGuiDragDropFlags_AcceptNoPreviewTooltip)) + ret = BeginTooltipHidden(); + else + ret = BeginTooltip(); IM_ASSERT(ret); // FIXME-NEWBEGIN: If this ever becomes false, we need to Begin("##Hidden", NULL, ImGuiWindowFlags_NoSavedSettings) + SetWindowHiddendAndSkipItemsForCurrentFrame(). IM_UNUSED(ret); - - if (g.DragDropAcceptIdPrev && (g.DragDropAcceptFlags & ImGuiDragDropFlags_AcceptNoPreviewTooltip)) - SetWindowHiddendAndSkipItemsForCurrentFrame(g.CurrentWindow); } if (!(flags & ImGuiDragDropFlags_SourceNoDisableHover) && !(flags & ImGuiDragDropFlags_SourceExtern)) diff --git a/imgui_demo.cpp b/imgui_demo.cpp index 84bdca2f3..e66b10e3a 100644 --- a/imgui_demo.cpp +++ b/imgui_demo.cpp @@ -2425,6 +2425,35 @@ static void ShowDemoWindowWidgets() ImGui::TreePop(); } + IMGUI_DEMO_MARKER("Widgets/Drag and Drop/Tooltip at target location"); + if (ImGui::TreeNode("Tooltip at target location")) + { + for (int n = 0; n < 2; n++) + { + // Drop targets + ImGui::Button(n ? "drop here##1" : "drop here##0"); + if (ImGui::BeginDragDropTarget()) + { + ImGuiDragDropFlags drop_target_flags = ImGuiDragDropFlags_AcceptBeforeDelivery | ImGuiDragDropFlags_AcceptNoPreviewTooltip; + if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_4F, drop_target_flags)) + { + ImGui::SetMouseCursor(ImGuiMouseCursor_NotAllowed); + ImGui::BeginTooltip(); + ImGui::Text("Cannot drop here!"); + ImGui::EndTooltip(); + } + ImGui::EndDragDropTarget(); + } + + // Drop source + static ImVec4 col4 = { 1.0f, 0.0f, 0.2f, 1.0f }; + if (n == 0) + ImGui::ColorButton("drag me", col4); + + } + ImGui::TreePop(); + } + ImGui::TreePop(); } diff --git a/imgui_internal.h b/imgui_internal.h index 70aef423f..f7eb5dbab 100644 --- a/imgui_internal.h +++ b/imgui_internal.h @@ -3013,6 +3013,7 @@ namespace ImGui IMGUI_API bool IsPopupOpen(ImGuiID id, ImGuiPopupFlags popup_flags); IMGUI_API bool BeginPopupEx(ImGuiID id, ImGuiWindowFlags extra_flags); IMGUI_API bool BeginTooltipEx(ImGuiTooltipFlags tooltip_flags, ImGuiWindowFlags extra_window_flags); + IMGUI_API bool BeginTooltipHidden(); IMGUI_API ImRect GetPopupAllowedExtentRect(ImGuiWindow* window); IMGUI_API ImGuiWindow* GetTopMostPopupModal(); IMGUI_API ImGuiWindow* GetTopMostAndVisiblePopupModal();