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Better documented the difference between BeginListBox() and BeginChild() w/ ImGuiChildFlags_FrameStyle.
BeginListBox() can't yet expose child flags because coarse clipping require query of stored size (same issue as with adding resize support to Tables).
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parent
fa4c49b4a7
commit
44345c2108
12
imgui.cpp
12
imgui.cpp
@ -14287,8 +14287,7 @@ void ImGui::ShowMetricsWindow(bool* p_open)
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Text("KEY OWNERS");
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{
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Indent();
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if (BeginListBox("##owners", ImVec2(-FLT_MIN, GetTextLineHeightWithSpacing() * 6)))
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{
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if (BeginChild("##owners", ImVec2(-FLT_MIN, GetTextLineHeightWithSpacing() * 6), ImGuiChildFlags_FrameStyle | ImGuiChildFlags_ResizeY, ImGuiWindowFlags_NoSavedSettings))
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for (ImGuiKey key = ImGuiKey_NamedKey_BEGIN; key < ImGuiKey_NamedKey_END; key = (ImGuiKey)(key + 1))
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{
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ImGuiKeyOwnerData* owner_data = GetKeyOwnerData(&g, key);
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@ -14298,15 +14297,13 @@ void ImGui::ShowMetricsWindow(bool* p_open)
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owner_data->LockUntilRelease ? " LockUntilRelease" : owner_data->LockThisFrame ? " LockThisFrame" : "");
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DebugLocateItemOnHover(owner_data->OwnerCurr);
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}
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EndListBox();
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}
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EndChild();
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Unindent();
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}
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Text("SHORTCUT ROUTING");
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{
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Indent();
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if (BeginListBox("##routes", ImVec2(-FLT_MIN, GetTextLineHeightWithSpacing() * 6)))
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{
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if (BeginChild("##routes", ImVec2(-FLT_MIN, GetTextLineHeightWithSpacing() * 6), ImGuiChildFlags_FrameStyle | ImGuiChildFlags_ResizeY, ImGuiWindowFlags_NoSavedSettings))
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for (ImGuiKey key = ImGuiKey_NamedKey_BEGIN; key < ImGuiKey_NamedKey_END; key = (ImGuiKey)(key + 1))
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{
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ImGuiKeyRoutingTable* rt = &g.KeysRoutingTable;
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@ -14320,8 +14317,7 @@ void ImGui::ShowMetricsWindow(bool* p_open)
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idx = routing_data->NextEntryIndex;
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}
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}
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EndListBox();
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}
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EndChild();
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Text("(ActiveIdUsing: AllKeyboardKeys: %d, NavDirMask: 0x%X)", g.ActiveIdUsingAllKeyboardKeys, g.ActiveIdUsingNavDirMask);
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Unindent();
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}
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4
imgui.h
4
imgui.h
@ -635,8 +635,8 @@ namespace ImGui
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IMGUI_API bool Selectable(const char* label, bool* p_selected, ImGuiSelectableFlags flags = 0, const ImVec2& size = ImVec2(0, 0)); // "bool* p_selected" point to the selection state (read-write), as a convenient helper.
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// Widgets: List Boxes
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// - This is essentially a thin wrapper to using BeginChild/EndChild with some stylistic changes.
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// - The BeginListBox()/EndListBox() api allows you to manage your contents and selection state however you want it, by creating e.g. Selectable() or any items.
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// - This is essentially a thin wrapper to using BeginChild/EndChild with the ImGuiChildFlags_FrameStyle flag for stylistic changes + displaying a label.
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// - You can submit contents and manage your selection state however you want it, by creating e.g. Selectable() or any other items.
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// - The simplified/old ListBox() api are helpers over BeginListBox()/EndListBox() which are kept available for convenience purpose. This is analoguous to how Combos are created.
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// - Choose frame width: size.x > 0.0f: custom / size.x < 0.0f or -FLT_MIN: right-align / size.x = 0.0f (default): use current ItemWidth
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// - Choose frame height: size.y > 0.0f: custom / size.y < 0.0f or -FLT_MIN: bottom-align / size.y = 0.0f (default): arbitrary default height which can fit ~7 items
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@ -1250,6 +1250,9 @@ static void ShowDemoWindowWidgets()
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IMGUI_DEMO_MARKER("Widgets/List Boxes");
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if (ImGui::TreeNode("List boxes"))
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{
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// BeginListBox() is essentially a thin wrapper to using BeginChild()/EndChild() with the ImGuiChildFlags_FrameStyle flag for stylistic changes + displaying a label.
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// You may be tempted to simply use BeginChild() directly, however note that BeginChild() requires EndChild() to always be called (inconsistent with BeginListBox()/EndListBox()).
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// Using the generic BeginListBox() API, you have full control over how to display the combo contents.
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// (your selection data could be an index, a pointer to the object, an id for the object, a flag intrusively
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// stored in the object itself, etc.)
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@ -6863,6 +6863,7 @@ void ImGui::SetNextItemSelectionUserData(ImGuiSelectionUserData selection_user_d
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// - ListBox()
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//-------------------------------------------------------------------------
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// This is essentially a thin wrapper to using BeginChild/EndChild with the ImGuiChildFlags_FrameStyle flag for stylistic changes + displaying a label.
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// Tip: To have a list filling the entire window width, use size.x = -FLT_MIN and pass an non-visible label e.g. "##empty"
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// Tip: If your vertical size is calculated from an item count (e.g. 10 * item_height) consider adding a fractional part to facilitate seeing scrolling boundaries (e.g. 10.25 * item_height).
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bool ImGui::BeginListBox(const char* label, const ImVec2& size_arg)
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@ -6892,7 +6893,7 @@ bool ImGui::BeginListBox(const char* label, const ImVec2& size_arg)
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return false;
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}
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// FIXME-OPT: We could omit the BeginGroup() if label_size.x but would need to omit the EndGroup() as well.
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// FIXME-OPT: We could omit the BeginGroup() if label_size.x == 0.0f but would need to omit the EndGroup() as well.
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BeginGroup();
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if (label_size.x > 0.0f)
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{
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