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Begin: Work toward obsoleting the 5-arguments Begin() overload. (1)

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This commit is contained in:
omar 2017-10-17 15:47:55 +02:00
parent 1a35766356
commit 55d873875e
2 changed files with 21 additions and 10 deletions
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29
imgui.cpp
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@ -4010,6 +4010,17 @@ static ImVec2 CalcNextScrollFromScrollTargetAndClamp(ImGuiWindow* window)
return scroll;
}
static ImGuiCol GetWindowBgColorIdxFromFlags(ImGuiWindowFlags flags)
{
if (flags & ImGuiWindowFlags_ComboBox)
return ImGuiCol_ComboBg;
if (flags & (ImGuiWindowFlags_Tooltip | ImGuiWindowFlags_Popup))
return ImGuiCol_PopupBg;
if (flags & ImGuiWindowFlags_ChildWindow)
return ImGuiCol_ChildWindowBg;
return ImGuiCol_WindowBg;
}
// Push a new ImGui window to add widgets to.
// - A default window called "Debug" is automatically stacked at the beginning of every frame so you can use widgets without explicitly calling a Begin/End pair.
// - Begin/End can be called multiple times during the frame with the same window name to append content.
@ -4021,10 +4032,15 @@ static ImVec2 CalcNextScrollFromScrollTargetAndClamp(ImGuiWindow* window)
// - Passing non-zero 'size' is roughly equivalent to calling SetNextWindowSize(size, ImGuiCond_FirstUseEver) prior to calling Begin().
bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
{
return ImGui::Begin(name, p_open, ImVec2(0.f, 0.f), -1.0f, flags);
return BeginEx(name, p_open, ImVec2(0.f, 0.f), -1.0f, flags);
}
bool ImGui::Begin(const char* name, bool* p_open, const ImVec2& size_on_first_use, float bg_alpha, ImGuiWindowFlags flags)
{
return BeginEx(name, p_open, size_on_first_use, bg_alpha, flags);
}
bool ImGui::BeginEx(const char* name, bool* p_open, const ImVec2& size_on_first_use, float bg_alpha, ImGuiWindowFlags flags)
{
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
@ -4371,13 +4387,7 @@ bool ImGui::Begin(const char* name, bool* p_open, const ImVec2& size_on_first_us
window->BorderSize = (flags & ImGuiWindowFlags_ShowBorders) ? 1.0f : 0.0f;
// Window background, Default Alpha
ImGuiCol bg_color_idx = ImGuiCol_WindowBg;
if ((flags & ImGuiWindowFlags_ComboBox) != 0)
bg_color_idx = ImGuiCol_ComboBg;
else if ((flags & ImGuiWindowFlags_Tooltip) != 0 || (flags & ImGuiWindowFlags_Popup) != 0)
bg_color_idx = ImGuiCol_PopupBg;
else if ((flags & ImGuiWindowFlags_ChildWindow) != 0)
bg_color_idx = ImGuiCol_ChildWindowBg;
ImGuiCol bg_color_idx = GetWindowBgColorIdxFromFlags(flags);
ImVec4 bg_color = style.Colors[bg_color_idx]; // We don't use GetColorU32() because bg_alpha is assigned (not multiplied) below
if (bg_alpha >= 0.0f)
bg_color.w = bg_alpha;
@ -5151,8 +5161,7 @@ void ImGui::SetWindowSize(const ImVec2& size, ImGuiCond cond)
void ImGui::SetWindowSize(const char* name, const ImVec2& size, ImGuiCond cond)
{
ImGuiWindow* window = FindWindowByName(name);
if (window)
if (ImGuiWindow* window = FindWindowByName(name))
SetWindowSize(window, size, cond);
}

2
imgui_internal.h
View File

@ -782,6 +782,8 @@ namespace ImGui
IMGUI_API void PushItemFlag(ImGuiItemFlags option, bool enabled);
IMGUI_API void PopItemFlag();
IMGUI_API bool BeginEx(const char* name, bool* p_open, const ImVec2& size_on_first_use, float bg_alpha, ImGuiWindowFlags flags);
IMGUI_API void OpenPopupEx(ImGuiID id, bool reopen_existing);
IMGUI_API void ClosePopup(ImGuiID id);
IMGUI_API bool IsPopupOpen(ImGuiID id);