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Demo: moved ExampleTreeNode, ExampleMemberInfo above in the demo file. Tidying up index.

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+ change ExampleTreeNode::UID from ImGuiID to int to not suggest that the user ID needs to be of a certain type
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ocornut 2024-07-19 12:35:57 +02:00
parent d7e605d430
commit 2546d0a0db
2 changed files with 116 additions and 99 deletions
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2
docs/CHANGELOG.txt
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@ -77,7 +77,7 @@ Other changes:
Disabling this was previously possible for Selectable() via a direct flag but not for MenuItem().
(#1379, #1468, #2200, #4936, #5216, #7302, #7573)
- This was mostly all previously in imgui_internal.h.
- Multi-Select: added multi-select API and demos. (#1861)
- Multi-Select: added multi-select API and demos. (#1861, #6518)
- This system implements standard multi-selection idioms (CTRL+mouse click, CTRL+keyboard moves,
SHIFT+mouse click, SHIFT+keyboard moves, etc.) with support for clipper (not submitting non-visible
items), box-selection with scrolling, and many other details.

213
imgui_demo.cpp
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@ -11,7 +11,7 @@
// Get the latest version at https://github.com/ocornut/imgui
// How to easily locate code?
// - Use the Item Picker to debug break in code by clicking any widgets: https://github.com/ocornut/imgui/wiki/Debug-Tools
// - Use Tools->Item Picker to debug break in code by clicking any widgets: https://github.com/ocornut/imgui/wiki/Debug-Tools
// - Browse an online version the demo with code linked to hovered widgets: https://pthom.github.io/imgui_manual_online/manual/imgui_manual.html
// - Find a visible string and search for it in the code!
@ -62,6 +62,7 @@
// - In Visual Studio: CTRL+comma ("Edit.GoToAll") can follow symbols inside comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
// - In Visual Studio w/ Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols inside comments.
// - In VS Code, CLion, etc.: CTRL+click can follow symbols inside comments.
// - You can search/grep for all sections listed in the index to find the section.
/*
@ -69,14 +70,14 @@ Index of this file:
// [SECTION] Forward Declarations
// [SECTION] Helpers
// [SECTION] Helpers: ExampleTreeNode, ExampleMemberInfo (for use by Property Editor & Multi-Select demos)
// [SECTION] Demo Window / ShowDemoWindow()
// - ShowDemoWindow()
// - sub section: ShowDemoWindowWidgets()
// - sub section: ShowDemoWindowMultiSelect()
// - sub section: ShowDemoWindowLayout()
// - sub section: ShowDemoWindowPopups()
// - sub section: ShowDemoWindowTables()
// - sub section: ShowDemoWindowInputs()
// [SECTION] ShowDemoWindowWidgets()
// [SECTION] ShowDemoWindowMultiSelect()
// [SECTION] ShowDemoWindowLayout()
// [SECTION] ShowDemoWindowPopups()
// [SECTION] ShowDemoWindowTables()
// [SECTION] ShowDemoWindowInputs()
// [SECTION] About Window / ShowAboutWindow()
// [SECTION] Style Editor / ShowStyleEditor()
// [SECTION] User Guide / ShowUserGuide()
@ -84,7 +85,6 @@ Index of this file:
// [SECTION] Example App: Debug Console / ShowExampleAppConsole()
// [SECTION] Example App: Debug Log / ShowExampleAppLog()
// [SECTION] Example App: Simple Layout / ShowExampleAppLayout()
// [SECTION] Helpers: ExampleTreeNode, ExampleMemberInfo (for use by Property Editor etc.)
// [SECTION] Example App: Property Editor / ShowExampleAppPropertyEditor()
// [SECTION] Example App: Long Text / ShowExampleAppLongText()
// [SECTION] Example App: Auto Resize / ShowExampleAppAutoResize()
@ -192,7 +192,7 @@ Index of this file:
#endif
//-----------------------------------------------------------------------------
// [SECTION] Forward Declarations, Helpers
// [SECTION] Forward Declarations
//-----------------------------------------------------------------------------
#if !defined(IMGUI_DISABLE_DEMO_WINDOWS)
@ -215,7 +215,7 @@ static void ShowExampleAppWindowTitles(bool* p_open);
static void ShowExampleMenuFile();
// We split the contents of the big ShowDemoWindow() function into smaller functions
// (because the link time of very large functions grow non-linearly)
// (because the link time of very large functions tends to grow non-linearly)
static void ShowDemoWindowWidgets();
static void ShowDemoWindowMultiSelect();
static void ShowDemoWindowLayout();
@ -251,16 +251,85 @@ void* GImGuiDemoMarkerCallbackUserData = NULL;
#define IMGUI_DEMO_MARKER(section) do { if (GImGuiDemoMarkerCallback != NULL) GImGuiDemoMarkerCallback(__FILE__, __LINE__, section, GImGuiDemoMarkerCallbackUserData); } while (0)
//-----------------------------------------------------------------------------
// [SECTION] Demo Window / ShowDemoWindow()
// [SECTION] Helpers: ExampleTreeNode, ExampleMemberInfo (for use by Property Editor etc.)
//-----------------------------------------------------------------------------
// - ShowDemoWindow()
// - ShowDemoWindowWidgets()
// - ShowDemoWindowMultiSelect()
// - ShowDemoWindowLayout()
// - ShowDemoWindowPopups()
// - ShowDemoWindowTables()
// - ShowDemoWindowColumns()
// - ShowDemoWindowInputs()
// Simple representation for a tree
// (this is designed to be simple to understand for our demos, not to be fancy or efficient etc.)
struct ExampleTreeNode
{
// Tree structure
char Name[28];
int UID = 0;
ExampleTreeNode* Parent = NULL;
ImVector<ExampleTreeNode*> Childs;
// Leaf Data
bool HasData = false; // All leaves have data
bool DataMyBool = false;
int DataMyInt = 128;
ImVec2 DataMyVec2 = ImVec2(0.0f, 3.141592f);
};
// Simple representation of struct metadata/serialization data.
// (this is a minimal version of what a typical advanced application may provide)
struct ExampleMemberInfo
{
const char* Name; // Member name
ImGuiDataType DataType; // Member type
int DataCount; // Member count (1 when scalar)
int Offset; // Offset inside parent structure
};
// Metadata description of ExampleTreeNode struct.
static const ExampleMemberInfo ExampleTreeNodeMemberInfos[]
{
{ "MyBool", ImGuiDataType_Bool, 1, offsetof(ExampleTreeNode, DataMyBool) },
{ "MyInt", ImGuiDataType_S32, 1, offsetof(ExampleTreeNode, DataMyInt) },
{ "MyVec2", ImGuiDataType_Float, 2, offsetof(ExampleTreeNode, DataMyVec2) },
};
static ExampleTreeNode* ExampleTree_CreateNode(const char* name, int uid, ExampleTreeNode* parent)
{
ExampleTreeNode* node = IM_NEW(ExampleTreeNode);
snprintf(node->Name, IM_ARRAYSIZE(node->Name), "%s", name);
node->UID = uid;
node->Parent = parent;
if (parent)
parent->Childs.push_back(node);
return node;
}
// Create example tree data
static ExampleTreeNode* ExampleTree_CreateDemoTree()
{
static const char* root_names[] = { "Apple", "Banana", "Cherry", "Kiwi", "Mango", "Orange", "Pineapple", "Strawberry", "Watermelon" };
char name_buf[32];
int uid = 0;
ExampleTreeNode* node_L0 = ExampleTree_CreateNode("<ROOT>", ++uid, NULL);
for (int idx_L0 = 0; idx_L0 < IM_ARRAYSIZE(root_names) * 2; idx_L0++)
{
snprintf(name_buf, 32, "%s %d", root_names[idx_L0 / 2], idx_L0 % 2);
ExampleTreeNode* node_L1 = ExampleTree_CreateNode(name_buf, ++uid, node_L0);
const int number_of_childs = (int)strlen(node_L1->Name);
for (int idx_L1 = 0; idx_L1 < number_of_childs; idx_L1++)
{
snprintf(name_buf, 32, "Child %d", idx_L1);
ExampleTreeNode* node_L2 = ExampleTree_CreateNode(name_buf, ++uid, node_L1);
node_L2->HasData = true;
if (idx_L1 == 0)
{
snprintf(name_buf, 32, "Sub-child %d", 0);
ExampleTreeNode* node_L3 = ExampleTree_CreateNode(name_buf, ++uid, node_L2);
node_L3->HasData = true;
}
}
}
return node_L0;
}
//-----------------------------------------------------------------------------
// [SECTION] Demo Window / ShowDemoWindow()
//-----------------------------------------------------------------------------
// Demonstrate most Dear ImGui features (this is big function!)
@ -610,6 +679,10 @@ void ImGui::ShowDemoWindow(bool* p_open)
ImGui::End();
}
//-----------------------------------------------------------------------------
// [SECTION] ShowDemoWindowWidgets()
//-----------------------------------------------------------------------------
static void ShowDemoWindowWidgets()
{
IMGUI_DEMO_MARKER("Widgets");
@ -2991,8 +3064,13 @@ struct ExampleDualListBox
}
};
//-----------------------------------------------------------------------------
// [SECTION] ShowDemoWindowMultiSelect()
//-----------------------------------------------------------------------------
// Multi-selection demos
// Also read: https://github.com/ocornut/imgui/wiki/Multi-Select
//-----------------------------------------------------------------------------
static void ShowDemoWindowMultiSelect()
{
IMGUI_DEMO_MARKER("Widgets/Selection State & Multi-Select");
@ -3525,6 +3603,10 @@ static void ShowDemoWindowMultiSelect()
}
}
//-----------------------------------------------------------------------------
// [SECTION] ShowDemoWindowLayout()
//-----------------------------------------------------------------------------
static void ShowDemoWindowLayout()
{
IMGUI_DEMO_MARKER("Layout");
@ -4384,6 +4466,10 @@ static void ShowDemoWindowLayout()
}
}
//-----------------------------------------------------------------------------
// [SECTION] ShowDemoWindowPopups()
//-----------------------------------------------------------------------------
static void ShowDemoWindowPopups()
{
IMGUI_DEMO_MARKER("Popups");
@ -4844,6 +4930,10 @@ static void ShowTableColumnsStatusFlags(ImGuiTableColumnFlags flags)
ImGui::CheckboxFlags("_IsHovered", &flags, ImGuiTableColumnFlags_IsHovered);
}
//-----------------------------------------------------------------------------
// [SECTION] ShowDemoWindowTables()
//-----------------------------------------------------------------------------
static void ShowDemoWindowTables()
{
//ImGui::SetNextItemOpen(true, ImGuiCond_Once);
@ -6937,6 +7027,10 @@ static void ShowDemoWindowColumns()
ImGui::TreePop();
}
//-----------------------------------------------------------------------------
// [SECTION] ShowDemoWindowInputs()
//-----------------------------------------------------------------------------
static void ShowDemoWindowInputs()
{
IMGUI_DEMO_MARKER("Inputs & Focus");
@ -8484,83 +8578,6 @@ static void ShowExampleAppLayout(bool* p_open)
ImGui::End();
}
//-----------------------------------------------------------------------------
// [SECTION] Helpers: ExampleTreeNode, ExampleMemberInfo (for use by Property Editor etc.)
//-----------------------------------------------------------------------------
// Simple representation for a tree
// (this is designed to be simple to understand for our demos, not to be efficient etc.)
struct ExampleTreeNode
{
char Name[28];
ImGuiID UID = 0;
ExampleTreeNode* Parent = NULL;
ImVector<ExampleTreeNode*> Childs;
// Data
bool HasData = false; // All leaves have data
bool DataIsEnabled = false;
int DataInt = 128;
ImVec2 DataVec2 = ImVec2(0.0f, 3.141592f);
};
// Simple representation of struct metadata/serialization data.
// (this is a minimal version of what a typical advanced application may provide)
struct ExampleMemberInfo
{
const char* Name;
ImGuiDataType DataType;
int DataCount;
int Offset;
};
// Metadata description of ExampleTreeNode struct.
static const ExampleMemberInfo ExampleTreeNodeMemberInfos[]
{
{ "Enabled", ImGuiDataType_Bool, 1, offsetof(ExampleTreeNode, DataIsEnabled) },
{ "MyInt", ImGuiDataType_S32, 1, offsetof(ExampleTreeNode, DataInt) },
{ "MyVec2", ImGuiDataType_Float, 2, offsetof(ExampleTreeNode, DataVec2) },
};
static ExampleTreeNode* ExampleTree_CreateNode(const char* name, const ImGuiID uid, ExampleTreeNode* parent)
{
ExampleTreeNode* node = IM_NEW(ExampleTreeNode);
snprintf(node->Name, IM_ARRAYSIZE(node->Name), "%s", name);
node->UID = uid;
node->Parent = parent;
if (parent)
parent->Childs.push_back(node);
return node;
}
// Create example tree data
static ExampleTreeNode* ExampleTree_CreateDemoTree()
{
static const char* root_names[] = { "Apple", "Banana", "Cherry", "Kiwi", "Mango", "Orange", "Pineapple", "Strawberry", "Watermelon" };
char name_buf[32];
ImGuiID uid = 0;
ExampleTreeNode* node_L0 = ExampleTree_CreateNode("<ROOT>", ++uid, NULL);
for (int idx_L0 = 0; idx_L0 < IM_ARRAYSIZE(root_names) * 2; idx_L0++)
{
snprintf(name_buf, 32, "%s %d", root_names[idx_L0 / 2], idx_L0 % 2);
ExampleTreeNode* node_L1 = ExampleTree_CreateNode(name_buf, ++uid, node_L0);
const int number_of_childs = (int)strlen(node_L1->Name);
for (int idx_L1 = 0; idx_L1 < number_of_childs; idx_L1++)
{
snprintf(name_buf, 32, "Child %d", idx_L1);
ExampleTreeNode* node_L2 = ExampleTree_CreateNode(name_buf, ++uid, node_L1);
node_L2->HasData = true;
if (idx_L1 == 0)
{
snprintf(name_buf, 32, "Sub-child %d", 0);
ExampleTreeNode* node_L3 = ExampleTree_CreateNode(name_buf, ++uid, node_L2);
node_L3->HasData = true;
}
}
}
return node_L0;
}
//-----------------------------------------------------------------------------
// [SECTION] Example App: Property Editor / ShowExampleAppPropertyEditor()
//-----------------------------------------------------------------------------
@ -8601,7 +8618,7 @@ struct ExampleAppPropertyEditor
void DrawTreeNode(ExampleTreeNode* node)
{
// Object tree node
ImGui::PushID((int)node->UID);
ImGui::PushID(node->UID);
ImGui::TableNextRow();
ImGui::TableSetColumnIndex(0);
ImGui::AlignTextToFramePadding();