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MultiSelect: Box-Select: fixes for checkboxes support. Comments.

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ocornut 2024-05-31 21:37:45 +02:00
parent 2f56df4839
commit 7bbbbea200
3 changed files with 11 additions and 15 deletions
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4
imgui.h
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@ -2775,8 +2775,8 @@ enum ImGuiMultiSelectFlags_
ImGuiMultiSelectFlags_NoRangeSelect = 1 << 2, // Disable Shift+Click/Shift+Keyboard handling (useful for unordered 2D selection).
ImGuiMultiSelectFlags_NoAutoSelect = 1 << 3, // Disable selecting items when navigating (useful for e.g. supporting range-select in a list of checkboxes)
ImGuiMultiSelectFlags_NoAutoClear = 1 << 4, // Disable clearing other items when navigating or selecting another one (generally used with ImGuiMultiSelectFlags_NoAutoSelect. useful for e.g. supporting range-select in a list of checkboxes)
ImGuiMultiSelectFlags_BoxSelect = 1 << 5, // Enable box-selection (only supporting 1D list when using clipper, not 2D grids). Box-selection works better with little bit of spacing between items hit-box in order to be able to aim at empty space.
ImGuiMultiSelectFlags_BoxSelect2d = 1 << 6, // Enable box-selection with 2D layout/grid support. This alters clipping logic so that e.g. horizontal movements will update selection of normally clipped items.
ImGuiMultiSelectFlags_BoxSelect = 1 << 5, // Enable box-selection with same width and same x pos items. Box-selection works better with little bit of spacing between items hit-box in order to be able to aim at empty space.
ImGuiMultiSelectFlags_BoxSelect2d = 1 << 6, // Enable box-selection with varying width or varying x pos items (e.g. different width labels, or 2D layout/grid). This alters clipping logic so that e.g. horizontal movements will update selection of normally clipped items.
ImGuiMultiSelectFlags_BoxSelectNoScroll = 1 << 7, // Disable scrolling when box-selecting near edges of scope.
ImGuiMultiSelectFlags_ClearOnEscape = 1 << 8, // Clear selection when pressing Escape while scope is focused.
ImGuiMultiSelectFlags_ClearOnClickVoid = 1 << 9, // Clear selection when clicking on empty location within scope.

2
imgui_demo.cpp
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@ -3215,7 +3215,7 @@ static void ShowDemoWindowMultiSelect()
static ImGuiMultiSelectFlags flags = ImGuiMultiSelectFlags_NoAutoSelect | ImGuiMultiSelectFlags_NoAutoClear | ImGuiMultiSelectFlags_ClearOnEscape;
ImGui::CheckboxFlags("ImGuiMultiSelectFlags_NoAutoSelect", &flags, ImGuiMultiSelectFlags_NoAutoSelect);
ImGui::CheckboxFlags("ImGuiMultiSelectFlags_NoAutoClear", &flags, ImGuiMultiSelectFlags_NoAutoClear);
ImGui::CheckboxFlags("ImGuiMultiSelectFlags_BoxSelect", &flags, ImGuiMultiSelectFlags_BoxSelect);
ImGui::CheckboxFlags("ImGuiMultiSelectFlags_BoxSelect2d", &flags, ImGuiMultiSelectFlags_BoxSelect2d); // Use 2D version as checkboxes are not same width.
struct Funcs
{

20
imgui_widgets.cpp
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@ -1136,10 +1136,11 @@ bool ImGui::Checkbox(const char* label, bool* v)
ItemSize(total_bb, style.FramePadding.y);
const bool is_visible = ItemAdd(total_bb, id);
if (!is_visible)
{
IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags | ImGuiItemStatusFlags_Checkable | (*v ? ImGuiItemStatusFlags_Checked : 0));
return false;
}
if (!g.BoxSelectState.UnclipMode || (g.LastItemData.InFlags & ImGuiItemFlags_IsMultiSelect) == 0 || !g.BoxSelectState.UnclipRect.Overlaps(total_bb)) // Extra layer of "no logic clip" for box-select support
{
IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags | ImGuiItemStatusFlags_Checkable | (*v ? ImGuiItemStatusFlags_Checked : 0));
return false;
}
// Range-Selection/Multi-selection support (header)
bool checked = *v;
@ -6801,13 +6802,8 @@ bool ImGui::Selectable(const char* label, bool selected, ImGuiSelectableFlags fl
const bool is_multi_select = (g.LastItemData.InFlags & ImGuiItemFlags_IsMultiSelect) != 0;
if (!is_visible)
{
// Extra layer of "no logic clip" for box-select support
if (!is_multi_select)
if (!is_multi_select || !g.BoxSelectState.UnclipMode || !g.BoxSelectState.UnclipRect.Overlaps(bb)) // Extra layer of "no logic clip" for box-select support (would be more overhead to add to ItemAdd)
return false;
if (!g.BoxSelectState.UnclipMode || !g.BoxSelectState.UnclipRect.Overlaps(bb))
return false;
}
const bool disabled_global = (g.CurrentItemFlags & ImGuiItemFlags_Disabled) != 0;
if (disabled_item && !disabled_global) // Only testing this as an optimization
@ -7242,9 +7238,9 @@ bool ImGui::BeginBoxSelect(ImGuiWindow* window, ImGuiID box_select_id, ImGuiMult
if (ms_flags & ImGuiMultiSelectFlags_BoxSelect2d)
if (bs->BoxSelectRectPrev.Min.x != bs->BoxSelectRectCurr.Min.x || bs->BoxSelectRectPrev.Max.x != bs->BoxSelectRectCurr.Max.x)
{
bs->UnclipRect = bs->BoxSelectRectPrev;
bs->UnclipRect.Add(bs->BoxSelectRectCurr);
bs->UnclipMode = true;
bs->UnclipRect = bs->BoxSelectRectPrev; // FIXME-OPT: UnclipRect x coordinates could be intersection of Prev and Curr rect on X axis.
bs->UnclipRect.Add(bs->BoxSelectRectCurr);
}
//GetForegroundDrawList()->AddRect(bs->UnclipRect.Min, bs->UnclipRect.Max, IM_COL32(255,0,0,200), 0.0f, 0, 3.0f);