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MultiSelect: Demo: Make ExampleSelection use ImGuiID. More self-explanatory.

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This commit is contained in:
ocornut 2023-08-28 17:36:59 +02:00
parent 530155d85a
commit fa516c3d76
1 changed files with 11 additions and 11 deletions
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22
imgui_demo.cpp
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@ -2801,17 +2801,17 @@ struct ExampleSelection
{
// Data
ImGuiStorage Storage; // Selection set
int Size; // Number of selected items (== number of 1 in the Storage, maintained by this class). // FIXME-MULTISELECT: Imply more difficult to track with intrusive selection schemes?
int Size; // Number of selected items (== number of 1 in the Storage, maintained by this class).
bool QueueDeletion; // Request deleting selected items
// Functions
ExampleSelection() { Clear(); }
void Clear() { Storage.Clear(); Size = 0; QueueDeletion = false; }
void Swap(ExampleSelection& rhs) { Storage.Data.swap(rhs.Storage.Data); }
bool Contains(int n) const { return Storage.GetInt((ImGuiID)n, 0) != 0; }
void AddItem(int n) { int* p_int = Storage.GetIntRef((ImGuiID)n, 0); if (*p_int != 0) return; *p_int = 1; Size++; }
void RemoveItem(int n) { int* p_int = Storage.GetIntRef((ImGuiID)n, 0); if (*p_int == 0) return; *p_int = 0; Size--; }
void UpdateItem(int n, bool v) { if (v) AddItem(n); else RemoveItem(n); }
bool Contains(ImGuiID key) const { return Storage.GetInt(key, 0) != 0; }
void AddItem(ImGuiID key) { int* p_int = Storage.GetIntRef(key, 0); if (*p_int != 0) return; *p_int = 1; Size++; }
void RemoveItem(ImGuiID key) { int* p_int = Storage.GetIntRef(key, 0); if (*p_int == 0) return; *p_int = 0; Size--; }
void UpdateItem(ImGuiID key, bool v){ if (v) AddItem(key); else RemoveItem(key); }
int GetSize() const { return Size; }
void DebugTooltip() { if (ImGui::BeginTooltip()) { for (auto& pair : Storage.Data) if (pair.val_i) ImGui::Text("0x%03X (%d)", pair.key, pair.key); ImGui::EndTooltip(); } }
@ -2985,7 +2985,7 @@ static void ShowDemoWindowMultiSelect()
{
char label[64];
sprintf(label, "Object %05d: %s", n, random_names[n % IM_ARRAYSIZE(random_names)]);
bool item_is_selected = selection.Contains(n);
bool item_is_selected = selection.Contains((ImGuiID)n);
ImGui::SetNextItemSelectionUserData(n);
ImGui::Selectable(label, item_is_selected);
}
@ -3026,7 +3026,7 @@ static void ShowDemoWindowMultiSelect()
{
char label[64];
sprintf(label, "Object %05d: %s", n, random_names[n % IM_ARRAYSIZE(random_names)]);
bool item_is_selected = selection.Contains(n);
bool item_is_selected = selection.Contains((ImGuiID)n);
ImGui::SetNextItemSelectionUserData(n);
ImGui::Selectable(label, item_is_selected);
}
@ -3071,7 +3071,7 @@ static void ShowDemoWindowMultiSelect()
items.push_back(items_next_id++);
if (ImGui::SmallButton("Add 20 items")) { for (int n = 0; n < 20; n++) { items.push_back(items_next_id++); } }
ImGui::SameLine();
if (ImGui::SmallButton("Remove 20 items")) { for (int n = IM_MIN(20, items.Size); n > 0; n--) { selection.RemoveItem(items.Size - 1); items.pop_back(); } } // This is to test
if (ImGui::SmallButton("Remove 20 items")) { for (int n = IM_MIN(20, items.Size); n > 0; n--) { selection.RemoveItem((ImGuiID)(items.Size - 1)); items.pop_back(); } } // This is to test
// (1) Extra to support deletion: Submit scrolling range to avoid glitches on deletion
const float items_height = ImGui::GetTextLineHeightWithSpacing();
@ -3097,7 +3097,7 @@ static void ShowDemoWindowMultiSelect()
char label[64];
sprintf(label, "Object %05d: %s", item_id, random_names[item_id % IM_ARRAYSIZE(random_names)]);
bool item_is_selected = selection.Contains(n);
bool item_is_selected = selection.Contains((ImGuiID)n);
ImGui::SetNextItemSelectionUserData(n);
ImGui::Selectable(label, item_is_selected);
if (next_focus_item_idx == n)
@ -3139,7 +3139,7 @@ static void ShowDemoWindowMultiSelect()
{
char label[64];
sprintf(label, "Object %05d: %s", n, random_names[n % IM_ARRAYSIZE(random_names)]);
bool item_is_selected = selection->Contains(n);
bool item_is_selected = selection->Contains((ImGuiID)n);
ImGui::SetNextItemSelectionUserData(n);
ImGui::Selectable(label, item_is_selected);
}
@ -3261,7 +3261,7 @@ static void ShowDemoWindowMultiSelect()
ImGui::SameLine();
}
bool item_is_selected = selection.Contains(n);
bool item_is_selected = selection.Contains((ImGuiID)n);
ImGui::SetNextItemSelectionUserData(n);
if (widget_type == WidgetType_Selectable)
{