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Internals: Added ImChunkStream, used by window settings. (more generic followup to 4c13807, the class will be used more extensively by Tables)

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This commit is contained in:
omar
2019-11-07 16:05:03 +01:00
parent a337e219b6
commit d003674f2c
2 changed files with 51 additions and 27 deletions
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36
imgui.cpp
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@ -2525,7 +2525,7 @@ ImGuiWindow::ImGuiWindow(ImGuiContext* context, const char* name)
LastTimeActive = -1.0f;
ItemWidthDefault = 0.0f;
FontWindowScale = 1.0f;
SettingsIdx = -1;
SettingsOffset = -1;
DrawList = &DrawListInst;
DrawList->_OwnerName = Name;
@ -3818,7 +3818,6 @@ void ImGui::Shutdown(ImGuiContext* context)
g.PrivateClipboard.clear();
g.InputTextState.ClearFreeMemory();
g.SettingsWindowsNames.clear();
g.SettingsWindows.clear();
g.SettingsHandlers.clear();
@ -4704,7 +4703,7 @@ static ImGuiWindow* CreateNewWindow(const char* name, ImVec2 size, ImGuiWindowFl
if (ImGuiWindowSettings* settings = ImGui::FindWindowSettings(window->ID))
{
// Retrieve settings from .ini file
window->SettingsIdx = g.SettingsWindows.index_from_ptr(settings);
window->SettingsOffset = g.SettingsWindows.offset_from_ptr(settings);
SetWindowConditionAllowFlags(window, ImGuiCond_FirstUseEver, false);
window->Pos = ImVec2(settings->Pos.x, settings->Pos.y);
window->Collapsed = settings->Collapsed;
@ -9205,27 +9204,31 @@ void ImGui::MarkIniSettingsDirty(ImGuiWindow* window)
ImGuiWindowSettings* ImGui::CreateNewWindowSettings(const char* name)
{
ImGuiContext& g = *GImGui;
g.SettingsWindows.push_back(ImGuiWindowSettings());
ImGuiWindowSettings* settings = &g.SettingsWindows.back();
#if !IMGUI_DEBUG_INI_SETTINGS
// Skip to the "###" marker if any. We don't skip past to match the behavior of GetID()
// Preserve the full string when IMGUI_DEBUG_INI_SETTINGS is set to make .ini inspection easier.
if (const char* p = strstr(name, "###"))
name = p;
#endif
size_t name_len = strlen(name);
settings->NameOffset = g.SettingsWindowsNames.size();
g.SettingsWindowsNames.append(name, name + name_len + 1); // Append with zero terminator
const size_t name_len = strlen(name);
// Allocate chunk
const size_t chunk_size = sizeof(ImGuiWindowSettings) + name_len + 1;
ImGuiWindowSettings* settings = g.SettingsWindows.alloc_chunk(chunk_size);
IM_PLACEMENT_NEW(settings) ImGuiWindowSettings();
settings->ID = ImHashStr(name, name_len);
memcpy(settings->GetName(), name, name_len + 1); // Store with zero terminator
return settings;
}
ImGuiWindowSettings* ImGui::FindWindowSettings(ImGuiID id)
{
ImGuiContext& g = *GImGui;
for (int i = 0; i != g.SettingsWindows.Size; i++)
if (g.SettingsWindows[i].ID == id)
return &g.SettingsWindows[i];
for (ImGuiWindowSettings* settings = g.SettingsWindows.begin(); settings != NULL; settings = g.SettingsWindows.next_chunk(settings))
if (settings->ID == id)
return settings;
return NULL;
}
@ -9380,11 +9383,11 @@ static void WindowSettingsHandler_WriteAll(ImGuiContext* ctx, ImGuiSettingsHandl
if (window->Flags & ImGuiWindowFlags_NoSavedSettings)
continue;
ImGuiWindowSettings* settings = (window->SettingsIdx != -1) ? &g.SettingsWindows[window->SettingsIdx] : ImGui::FindWindowSettings(window->ID);
ImGuiWindowSettings* settings = (window->SettingsOffset != -1) ? g.SettingsWindows.ptr_from_offset(window->SettingsOffset) : ImGui::FindWindowSettings(window->ID);
if (!settings)
{
settings = ImGui::CreateNewWindowSettings(window->Name);
window->SettingsIdx = g.SettingsWindows.index_from_ptr(settings);
window->SettingsOffset = g.SettingsWindows.offset_from_ptr(settings);
}
IM_ASSERT(settings->ID == window->ID);
settings->Pos = ImVec2ih((short)window->Pos.x, (short)window->Pos.y);
@ -9393,11 +9396,10 @@ static void WindowSettingsHandler_WriteAll(ImGuiContext* ctx, ImGuiSettingsHandl
}
// Write to text buffer
buf->reserve(buf->size() + g.SettingsWindows.Size * 96); // ballpark reserve
for (int i = 0; i != g.SettingsWindows.Size; i++)
buf->reserve(buf->size() + g.SettingsWindows.size() * 6); // ballpark reserve
for (ImGuiWindowSettings* settings = g.SettingsWindows.begin(); settings != NULL; settings = g.SettingsWindows.next_chunk(settings))
{
const ImGuiWindowSettings* settings = &g.SettingsWindows[i];
const char* settings_name = g.SettingsWindowsNames.c_str() + settings->NameOffset;
const char* settings_name = settings->GetName();
buf->appendf("[%s][%s]\n", handler->TypeName, settings_name);
buf->appendf("Pos=%d,%d\n", settings->Pos.x, settings->Pos.y);
buf->appendf("Size=%d,%d\n", settings->Size.x, settings->Size.y);