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Internals: Split some code out of NewFrame() into an Initialize() function.

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This commit is contained in:
omar 2017-08-26 16:35:39 +08:00
parent 5938f1ba61
commit 419b22a487
2 changed files with 16 additions and 11 deletions
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26
imgui.cpp
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@ -2125,16 +2125,9 @@ void ImGui::NewFrame()
IM_ASSERT(g.Style.CurveTessellationTol > 0.0f); // Invalid style setting
IM_ASSERT(g.Style.Alpha >= 0.0f && g.Style.Alpha <= 1.0f); // Invalid style setting. Alpha cannot be negative (allows us to avoid a few clamps in color computations)
// Initialize on first frame
if (!g.Initialized)
{
// Initialize on first frame
g.LogClipboard = (ImGuiTextBuffer*)ImGui::MemAlloc(sizeof(ImGuiTextBuffer));
IM_PLACEMENT_NEW(g.LogClipboard) ImGuiTextBuffer();
IM_ASSERT(g.Settings.empty());
LoadIniSettingsFromDisk(g.IO.IniFilename);
g.Initialized = true;
}
ImGui::Initialize();
SetCurrentFont(GetDefaultFont());
IM_ASSERT(g.Font->IsLoaded());
@ -2350,7 +2343,18 @@ void ImGui::NewFrame()
ImGui::Begin("Debug");
}
// NB: behavior of ImGui after Shutdown() is not tested/guaranteed at the moment. This function is merely here to free heap allocations.
void ImGui::Initialize()
{
ImGuiContext& g = *GImGui;
g.LogClipboard = (ImGuiTextBuffer*)ImGui::MemAlloc(sizeof(ImGuiTextBuffer));
IM_PLACEMENT_NEW(g.LogClipboard) ImGuiTextBuffer();
IM_ASSERT(g.Settings.empty());
LoadIniSettingsFromDisk(g.IO.IniFilename);
g.Initialized = true;
}
// This function is merely here to free heap allocations.
void ImGui::Shutdown()
{
ImGuiContext& g = *GImGui;
@ -2359,7 +2363,7 @@ void ImGui::Shutdown()
if (g.IO.Fonts) // Testing for NULL to allow user to NULLify in case of running Shutdown() on multiple contexts. Bit hacky.
g.IO.Fonts->Clear();
// Cleanup of other data are conditional on actually having used ImGui.
// Cleanup of other data are conditional on actually having initialize ImGui.
if (!g.Initialized)
return;