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Docking, Settings: Allow reload of settings data at runtime. (#2573)

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This commit is contained in:
omar 2020-05-07 23:28:29 +02:00
parent 51e568f9dc
commit 574ff0a280
2 changed files with 24 additions and 3 deletions
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24
imgui.cpp
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@ -10520,6 +10520,12 @@ void ImGui::LoadIniSettingsFromMemory(const char* ini_data, size_t ini_size)
memcpy(buf, ini_data, ini_size);
buf_end[0] = 0;
// Call pre-read handlers
// Some types will clear their data (e.g. dock information) some types will allow merge/override (window)
for (int handler_n = 0; handler_n < g.SettingsHandlers.Size; handler_n++)
if (g.SettingsHandlers[handler_n].ReadInitFn)
g.SettingsHandlers[handler_n].ReadInitFn(&g, &g.SettingsHandlers[handler_n]);
void* entry_data = NULL;
ImGuiSettingsHandler* entry_handler = NULL;
@ -11683,6 +11689,7 @@ namespace ImGui
static void DockSettingsRenameNodeReferences(ImGuiID old_node_id, ImGuiID new_node_id);
static void DockSettingsRemoveNodeReferences(ImGuiID* node_ids, int node_ids_count);
static ImGuiDockNodeSettings* DockSettingsFindNodeSettings(ImGuiContext* ctx, ImGuiID node_id);
static void DockSettingsHandler_ClearAll(ImGuiContext*, ImGuiSettingsHandler*);
static void DockSettingsHandler_ApplyAll(ImGuiContext*, ImGuiSettingsHandler*);
static void* DockSettingsHandler_ReadOpen(ImGuiContext*, ImGuiSettingsHandler*, const char* name);
static void DockSettingsHandler_ReadLine(ImGuiContext*, ImGuiSettingsHandler*, void* entry, const char* line);
@ -11726,9 +11733,11 @@ void ImGui::DockContextInitialize(ImGuiContext* ctx)
ImGuiSettingsHandler ini_handler;
ini_handler.TypeName = "Docking";
ini_handler.TypeHash = ImHashStr("Docking");
ini_handler.ApplyAllFn = DockSettingsHandler_ApplyAll;
ini_handler.ClearAllFn = DockSettingsHandler_ClearAll;
ini_handler.ReadInitFn = DockSettingsHandler_ClearAll; // Also clear on read
ini_handler.ReadOpenFn = DockSettingsHandler_ReadOpen;
ini_handler.ReadLineFn = DockSettingsHandler_ReadLine;
ini_handler.ApplyAllFn = DockSettingsHandler_ApplyAll;
ini_handler.WriteAllFn = DockSettingsHandler_WriteAll;
g.SettingsHandlers.push_back(ini_handler);
}
@ -11752,7 +11761,8 @@ void ImGui::DockContextClearNodes(ImGuiContext* ctx, ImGuiID root_id, bool clear
DockBuilderRemoveNodeChildNodes(root_id);
}
// This function also acts as a defacto test to make sure we can rebuild from scratch without a glitch
// [DEBUG] This function also acts as a defacto test to make sure we can rebuild from scratch without a glitch
// (Different from DockSettingsHandler_ClearAll() + DockSettingsHandler_ApplyAll() because this reuses current settings!)
void ImGui::DockContextRebuildNodes(ImGuiContext* ctx)
{
IMGUI_DEBUG_LOG_DOCKING("DockContextRebuild()\n");
@ -14867,6 +14877,15 @@ static ImGuiDockNodeSettings* ImGui::DockSettingsFindNodeSettings(ImGuiContext*
return NULL;
}
// Clear settings data
static void ImGui::DockSettingsHandler_ClearAll(ImGuiContext* ctx, ImGuiSettingsHandler*)
{
ImGuiDockContext* dc = ctx->DockContext;
dc->SettingsNodes.clear();
DockContextClearNodes(ctx, 0, true);
}
// Recreate dones based on settings data
static void ImGui::DockSettingsHandler_ApplyAll(ImGuiContext* ctx, ImGuiSettingsHandler*)
{
// Prune settings at boot time only
@ -14874,6 +14893,7 @@ static void ImGui::DockSettingsHandler_ApplyAll(ImGuiContext* ctx, ImGuiSettings
if (ctx->Windows.Size == 0)
DockContextPruneUnusedSettingsNodes(ctx);
DockContextBuildNodesFromSettings(ctx, dc->SettingsNodes.Data, dc->SettingsNodes.Size);
DockContextBuildAddWindowsToNodes(ctx, 0);
}
static void* ImGui::DockSettingsHandler_ReadOpen(ImGuiContext*, ImGuiSettingsHandler*, const char* name)

3
imgui_internal.h
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@ -855,9 +855,10 @@ struct ImGuiSettingsHandler
const char* TypeName; // Short description stored in .ini file. Disallowed characters: '[' ']'
ImGuiID TypeHash; // == ImHashStr(TypeName)
void (*ClearAllFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler); // Clear all settings data
void (*ApplyAllFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler); // Read: Called after reading (in registration order)
void (*ReadInitFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler); // Read: Called before reading (in registration order)
void* (*ReadOpenFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler, const char* name); // Read: Called when entering into a new ini entry e.g. "[Window][Name]"
void (*ReadLineFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler, void* entry, const char* line); // Read: Called for every line of text within an ini entry
void (*ApplyAllFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler); // Read: Called after reading (in registration order)
void (*WriteAllFn)(ImGuiContext* ctx, ImGuiSettingsHandler* handler, ImGuiTextBuffer* out_buf); // Write: Output every entries into 'out_buf'
void* UserData;