MultiSelect: BoxSelect: fixed using in frozen table. (#7821, #5143) + added Demo.

Amend 0b4a1a40
This commit is contained in:
ocornut
2024-07-29 15:23:24 +02:00
parent 249d5caedb
commit b847c41437
3 changed files with 68 additions and 6 deletions

View File

@@ -7221,7 +7221,7 @@ static void BoxSelectScrollWithMouseDrag(ImGuiBoxSelectState* bs, ImGuiWindow* w
}
}
bool ImGui::BeginBoxSelect(ImGuiWindow* window, ImGuiID box_select_id, ImGuiMultiSelectFlags ms_flags)
bool ImGui::BeginBoxSelect(const ImRect& scope_rect, ImGuiWindow* window, ImGuiID box_select_id, ImGuiMultiSelectFlags ms_flags)
{
ImGuiContext& g = *GImGui;
ImGuiBoxSelectState* bs = &g.BoxSelectState;
@@ -7241,11 +7241,10 @@ bool ImGui::BeginBoxSelect(ImGuiWindow* window, ImGuiID box_select_id, ImGuiMult
// Current frame absolute prev/current rectangles are used to toggle selection.
// They are derived from positions relative to scrolling space.
const ImRect scope_rect = window->InnerClipRect;
ImVec2 start_pos_abs = WindowPosRelToAbs(window, bs->StartPosRel);
ImVec2 prev_end_pos_abs = WindowPosRelToAbs(window, bs->EndPosRel); // Clamped already
ImVec2 curr_end_pos_abs = g.IO.MousePos;
if (ms_flags & ImGuiMultiSelectFlags_ScopeWindow) // Box-select scrolling only happens with ScopeWindow
if (ms_flags & ImGuiMultiSelectFlags_ScopeWindow) // Box-select scrolling only happens with ScopeWindow
curr_end_pos_abs = ImClamp(curr_end_pos_abs, scope_rect.Min, scope_rect.Max);
bs->BoxSelectRectPrev.Min = ImMin(start_pos_abs, prev_end_pos_abs);
bs->BoxSelectRectPrev.Max = ImMax(start_pos_abs, prev_end_pos_abs);
@@ -7299,6 +7298,7 @@ void ImGui::EndBoxSelect(const ImRect& scope_rect, ImGuiMultiSelectFlags ms_flag
// [SECTION] Widgets: Multi-Select support
//-------------------------------------------------------------------------
// - DebugLogMultiSelectRequests() [Internal]
// - CalcScopeRect() [Internal]
// - BeginMultiSelect()
// - EndMultiSelect()
// - SetNextItemSelectionUserData()
@@ -7317,6 +7317,22 @@ static void DebugLogMultiSelectRequests(const char* function, const ImGuiMultiSe
}
}
static ImRect CalcScopeRect(ImGuiMultiSelectTempData* ms, ImGuiWindow* window)
{
if (ms->Flags & ImGuiMultiSelectFlags_ScopeRect)
{
// Warning: this depends on CursorMaxPos so it means to be called by EndMultiSelect() only
return ImRect(ms->ScopeRectMin, ImMax(window->DC.CursorMaxPos, ms->ScopeRectMin));
}
else
{
// Add inner table decoration (#7821) // FIXME: Why not baking in InnerClipRect?
ImRect scope_rect = window->InnerClipRect;
scope_rect.Min = ImMin(scope_rect.Min + ImVec2(window->DecoInnerSizeX1, window->DecoInnerSizeY1), scope_rect.Max);
return scope_rect;
}
}
// Return ImGuiMultiSelectIO structure.
// Lifetime: don't hold on ImGuiMultiSelectIO* pointers over multiple frames or past any subsequent call to BeginMultiSelect() or EndMultiSelect().
// Passing 'selection_size' and 'items_count' parameters is currently optional.
@@ -7399,7 +7415,7 @@ ImGuiMultiSelectIO* ImGui::BeginMultiSelect(ImGuiMultiSelectFlags flags, int sel
if (flags & (ImGuiMultiSelectFlags_BoxSelect1d | ImGuiMultiSelectFlags_BoxSelect2d))
{
ms->BoxSelectId = GetID("##BoxSelect");
if (BeginBoxSelect(window, ms->BoxSelectId, flags))
if (BeginBoxSelect(CalcScopeRect(ms, window), window, ms->BoxSelectId, flags))
request_clear |= bs->RequestClear;
}
@@ -7452,7 +7468,7 @@ ImGuiMultiSelectIO* ImGui::EndMultiSelect()
IM_ASSERT(g.CurrentMultiSelect != NULL && storage->Window == g.CurrentWindow);
IM_ASSERT(g.MultiSelectTempDataStacked > 0 && &g.MultiSelectTempData[g.MultiSelectTempDataStacked - 1] == g.CurrentMultiSelect);
const ImRect scope_rect = (ms->Flags & ImGuiMultiSelectFlags_ScopeRect) ? ImRect(ms->ScopeRectMin, ImMax(window->DC.CursorMaxPos, ms->ScopeRectMin)) : window->InnerClipRect;
ImRect scope_rect = CalcScopeRect(ms, window);
if (ms->IsFocused)
{
// We currently don't allow user code to modify RangeSrcItem by writing to BeginIO's version, but that would be an easy change here.