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Demo: Improved Selectable() examples. (#1528)
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4
imgui.h
4
imgui.h
@ -376,8 +376,8 @@ namespace ImGui
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IMGUI_API bool CollapsingHeader(const char* label, bool* p_open, ImGuiTreeNodeFlags flags = 0); // when 'p_open' isn't NULL, display an additional small close button on upper right of the header
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// Widgets: Selectable / Lists
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IMGUI_API bool Selectable(const char* label, bool selected = false, ImGuiSelectableFlags flags = 0, const ImVec2& size = ImVec2(0,0)); // size.x==0.0: use remaining width, size.x>0.0: specify width. size.y==0.0: use label height, size.y>0.0: specify height
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IMGUI_API bool Selectable(const char* label, bool* p_selected, ImGuiSelectableFlags flags = 0, const ImVec2& size = ImVec2(0,0));
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IMGUI_API bool Selectable(const char* label, bool selected = false, ImGuiSelectableFlags flags = 0, const ImVec2& size = ImVec2(0,0)); // "bool selected" carry the selection state (read-only). Selectable() is clicked is returns true so you can modify your selection state. size.x==0.0: use remaining width, size.x>0.0: specify width. size.y==0.0: use label height, size.y>0.0: specify height
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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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IMGUI_API bool ListBox(const char* label, int* current_item, const char* const items[], int items_count, int height_in_items = -1);
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IMGUI_API bool ListBox(const char* label, int* current_item, bool (*items_getter)(void* data, int idx, const char** out_text), void* data, int items_count, int height_in_items = -1);
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IMGUI_API bool ListBoxHeader(const char* label, const ImVec2& size = ImVec2(0,0)); // use if you want to reimplement ListBox() will custom data or interactions. make sure to call ListBoxFooter() afterwards.
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@ -609,24 +609,58 @@ void ImGui::ShowDemoWindow(bool* p_open)
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if (ImGui::TreeNode("Selectables"))
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{
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// Selectable() has 2 overloads:
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// - The one taking "bool selected" as a read-only selection information. When Selectable() has been clicked is returns true and you can alter selection state accordingly.
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// - The one taking "bool* p_selected" as a read-write selection information (convenient in some cases)
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// The earlier is more flexible, as in real application your selection may be stored in a different manner (in flags within objects, as an external list, etc).
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if (ImGui::TreeNode("Basic"))
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{
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static bool selected[4] = { false, true, false, false };
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ImGui::Selectable("1. I am selectable", &selected[0]);
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ImGui::Selectable("2. I am selectable", &selected[1]);
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static bool selection[5] = { false, true, false, false, false };
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ImGui::Selectable("1. I am selectable", &selection[0]);
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ImGui::Selectable("2. I am selectable", &selection[1]);
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ImGui::Text("3. I am not selectable");
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ImGui::Selectable("4. I am selectable", &selected[2]);
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if (ImGui::Selectable("5. I am double clickable", selected[3], ImGuiSelectableFlags_AllowDoubleClick))
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ImGui::Selectable("4. I am selectable", &selection[3]);
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if (ImGui::Selectable("5. I am double clickable", selection[4], ImGuiSelectableFlags_AllowDoubleClick))
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if (ImGui::IsMouseDoubleClicked(0))
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selected[3] = !selected[3];
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selection[4] = !selection[4];
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ImGui::TreePop();
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}
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if (ImGui::TreeNode("Rendering more text into the same block"))
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if (ImGui::TreeNode("Selection State: Single Selection"))
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{
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static int selected = -1;
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for (int n = 0; n < 5; n++)
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{
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char buf[32];
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sprintf(buf, "Object %d", n);
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if (ImGui::Selectable(buf, selected == n))
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selected = n;
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}
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ImGui::TreePop();
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}
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if (ImGui::TreeNode("Selection State: Multiple Selection"))
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{
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ShowHelpMarker("Hold CTRL and click to select multiple items.");
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static bool selection[5] = { false, false, false, false, false };
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for (int n = 0; n < 5; n++)
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{
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char buf[32];
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sprintf(buf, "Object %d", n);
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if (ImGui::Selectable(buf, selection[n]))
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{
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if (!ImGui::GetIO().KeyCtrl) // Clear selection when CTRL is not held
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memset(selection, 0, sizeof(selection));
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selection[n] ^= 1;
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}
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}
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ImGui::TreePop();
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}
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if (ImGui::TreeNode("Rendering more text into the same line"))
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{
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// Using the Selectable() override that takes "bool* p_selected" parameter and toggle your booleans automatically.
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static bool selected[3] = { false, false, false };
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ImGui::Selectable("main.c", &selected[0]); ImGui::SameLine(300); ImGui::Text(" 2,345 bytes");
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ImGui::Selectable("main.c", &selected[0]); ImGui::SameLine(300); ImGui::Text(" 2,345 bytes");
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ImGui::Selectable("Hello.cpp", &selected[1]); ImGui::SameLine(300); ImGui::Text("12,345 bytes");
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ImGui::Selectable("Hello.h", &selected[2]); ImGui::SameLine(300); ImGui::Text(" 2,345 bytes");
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ImGui::Selectable("Hello.h", &selected[2]); ImGui::SameLine(300); ImGui::Text(" 2,345 bytes");
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ImGui::TreePop();
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}
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if (ImGui::TreeNode("In columns"))
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