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Internals: Extracted some code out of the NewFrame() function.

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This commit is contained in:
omar 2019-07-21 12:13:44 -07:00
parent c37f21788f
commit f1ba217a92
1 changed files with 33 additions and 18 deletions
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51
imgui.cpp
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@ -1089,6 +1089,7 @@ static int FindWindowFocusIndex(ImGuiWindow* window);
static void UpdateMouseInputs();
static void UpdateMouseWheel();
static bool UpdateManualResize(ImGuiWindow* window, const ImVec2& size_auto_fit, int* border_held, int resize_grip_count, ImU32 resize_grip_col[4]);
static void UpdateDebugToolItemPicker();
static void RenderWindowOuterBorders(ImGuiWindow* window);
static void RenderWindowDecorations(ImGuiWindow* window, const ImRect& title_bar_rect, bool title_bar_is_highlight, int resize_grip_count, const ImU32 resize_grip_col[4], float resize_grip_draw_size);
static void RenderWindowTitleBarContents(ImGuiWindow* window, const ImRect& title_bar_rect, const char* name, bool* p_open);
@ -3584,15 +3585,10 @@ void ImGui::UpdateHoveredWindowAndCaptureFlags()
g.IO.WantTextInput = (g.WantTextInputNextFrame != -1) ? (g.WantTextInputNextFrame != 0) : false;
}
void ImGui::NewFrame()
static void NewFrameSanityChecks()
{
IM_ASSERT(GImGui != NULL && "No current context. Did you call ImGui::CreateContext() and ImGui::SetCurrentContext() ?");
ImGuiContext& g = *GImGui;
#ifdef IMGUI_ENABLE_TEST_ENGINE
ImGuiTestEngineHook_PreNewFrame(&g);
#endif
// Check user data
// (We pass an error message in the assert expression to make it visible to programmers who are not using a debugger, as most assert handlers display their argument)
IM_ASSERT(g.Initialized);
@ -3605,7 +3601,6 @@ void ImGui::NewFrame()
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)!");
IM_ASSERT(g.Style.WindowMinSize.x >= 1.0f && g.Style.WindowMinSize.y >= 1.0f && "Invalid style setting.");
IM_ASSERT(g.Style.WindowMenuButtonPosition == ImGuiDir_Left || g.Style.WindowMenuButtonPosition == ImGuiDir_Right);
for (int n = 0; n < ImGuiKey_COUNT; n++)
IM_ASSERT(g.IO.KeyMap[n] >= -1 && g.IO.KeyMap[n] < IM_ARRAYSIZE(g.IO.KeysDown) && "io.KeyMap[] contains an out of bound value (need to be 0..512, or -1 for unmapped key)");
@ -3616,6 +3611,19 @@ void ImGui::NewFrame()
// Perform simple check: the beta io.ConfigWindowsResizeFromEdges option requires back-end to honor mouse cursor changes and set the ImGuiBackendFlags_HasMouseCursors flag accordingly.
if (g.IO.ConfigWindowsResizeFromEdges && !(g.IO.BackendFlags & ImGuiBackendFlags_HasMouseCursors))
g.IO.ConfigWindowsResizeFromEdges = false;
}
void ImGui::NewFrame()
{
IM_ASSERT(GImGui != NULL && "No current context. Did you call ImGui::CreateContext() and ImGui::SetCurrentContext() ?");
ImGuiContext& g = *GImGui;
#ifdef IMGUI_ENABLE_TEST_ENGINE
ImGuiTestEngineHook_PreNewFrame(&g);
#endif
// Check and assert for various common IO and Configuration mistakes
NewFrameSanityChecks();
// Load settings on first frame (if not explicitly loaded manually before)
if (!g.SettingsLoaded)
@ -3798,6 +3806,24 @@ void ImGui::NewFrame()
ClosePopupsOverWindow(g.NavWindow, false);
// [DEBUG] Item picker tool - start with DebugStartItemPicker() - useful to visually select an item and break into its call-stack.
UpdateDebugToolItemPicker();
// Create implicit/fallback window - which we will only render it if the user has added something to it.
// We don't use "Debug" to avoid colliding with user trying to create a "Debug" window with custom flags.
// This fallback is particularly important as it avoid ImGui:: calls from crashing.
SetNextWindowSize(ImVec2(400,400), ImGuiCond_FirstUseEver);
Begin("Debug##Default");
g.FrameScopePushedImplicitWindow = true;
#ifdef IMGUI_ENABLE_TEST_ENGINE
ImGuiTestEngineHook_PostNewFrame(&g);
#endif
}
// [DEBUG] Item picker tool - start with DebugStartItemPicker() - useful to visually select an item and break into its call-stack.
void ImGui::UpdateDebugToolItemPicker()
{
ImGuiContext& g = *GImGui;
g.DebugItemPickerBreakID = 0;
if (g.DebugItemPickerActive)
{
@ -3817,17 +3843,6 @@ void ImGui::NewFrame()
ImGui::TextColored(GetStyleColorVec4(hovered_id ? ImGuiCol_Text : ImGuiCol_TextDisabled), "Click to break in debugger!");
ImGui::EndTooltip();
}
// Create implicit/fallback window - which we will only render it if the user has added something to it.
// We don't use "Debug" to avoid colliding with user trying to create a "Debug" window with custom flags.
// This fallback is particularly important as it avoid ImGui:: calls from crashing.
SetNextWindowSize(ImVec2(400,400), ImGuiCond_FirstUseEver);
Begin("Debug##Default");
g.FrameScopePushedImplicitWindow = true;
#ifdef IMGUI_ENABLE_TEST_ENGINE
ImGuiTestEngineHook_PostNewFrame(&g);
#endif
}
void ImGui::Initialize(ImGuiContext* context)