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Skip most logic is alpha is 0.0, Begin() also return false to allow user to early out

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features/sdl_renderer3_multiviewports
ocornut ago%!(EXTRA string=11 years)
parent ca027e1754
commit 7c61822d26
1 changed files with 37 additions and 29 deletions
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  1. 66
      imgui.cpp

66
imgui.cpp
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@ -671,7 +671,8 @@ struct ImGuiWindow
bool ScrollbarY;
bool Visible; // Set to true on Begin()
bool Accessed; // Set to true when any widget access the current window
bool Collapsed;
bool Collapsed; // Set when collapsing window to become only title-bar
bool SkipItems; // == Visible && !Collapsed
int AutoFitFrames;
ImGuiDrawContext DC;
@ -926,6 +927,7 @@ ImGuiWindow::ImGuiWindow(const char* name, ImVec2 default_pos, ImVec2 default_si
Visible = false;
Accessed = false;
Collapsed = false;
SkipItems = false;
AutoFitFrames = -1;
LastFrameDrawn = -1;
ItemWidthDefault = 0.0f;
@ -1945,7 +1947,7 @@ bool Begin(const char* name, bool* open, ImVec2 size, float fill_alpha, ImGuiWin
// Apply and ImClamp scrolling
window->ScrollY = window->NextScrollY;
window->ScrollY = ImMax(window->ScrollY, 0.0f);
if (!window->Collapsed)
if (!window->Collapsed && !window->SkipItems)
window->ScrollY = ImMin(window->ScrollY, ImMax(0.0f, (float)window->SizeContentsFit.y - window->SizeFull.y));
window->NextScrollY = window->ScrollY;
@ -2186,9 +2188,12 @@ bool Begin(const char* name, bool* open, ImVec2 size, float fill_alpha, ImGuiWin
if (window->Collapsed)
window->Visible = false;
}
if (g.Style.Alpha <= 0.0f)
window->Visible = false;
// Return collapsed so that user can perform an early out optimisation
return !window->Collapsed;
// Return false if we don't intend to display anything to allow user to perform an early out optimisation
window->SkipItems = !window->Visible || window->Collapsed;
return !window->SkipItems;
}
void End()
@ -2456,7 +2461,7 @@ ImGuiStorage* GetTreeStateStorage()
void TextV(const char* fmt, va_list args)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return;
static char buf[1024];
@ -2486,7 +2491,7 @@ void TextUnformatted(const char* text, const char* text_end)
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return;
const char* text_begin = text;
@ -2584,7 +2589,7 @@ void AlignFirstTextHeightToWidgets()
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return;
// Declare a dummy item size to that upcoming items that are smaller will center-align on the newly expanded line height.
@ -2596,7 +2601,7 @@ void LabelText(const char* label, const char* fmt, ...)
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return;
const ImGuiStyle& style = g.Style;
const float w = window->DC.ItemWidth.back();
@ -2669,7 +2674,7 @@ bool Button(const char* label, ImVec2 size, bool repeat_when_held)
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return false;
const ImGuiStyle& style = g.Style;
@ -2709,7 +2714,7 @@ bool SmallButton(const char* label)
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return false;
const ImGuiStyle& style = g.Style;
@ -2827,7 +2832,7 @@ bool CollapsingHeader(const char* label, const char* str_id, const bool display_
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return false;
const ImGuiStyle& style = g.Style;
@ -2907,7 +2912,7 @@ void BulletText(const char* fmt, ...)
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return;
static char buf[1024];
@ -3059,7 +3064,7 @@ bool SliderFloat(const char* label, float* v, float v_min, float v_max, const ch
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return false;
const ImGuiStyle& style = g.Style;
@ -3295,7 +3300,7 @@ static bool SliderFloatN(const char* label, float v[3], int components, float v_
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return false;
const ImGuiStyle& style = g.Style;
@ -3358,7 +3363,7 @@ static void Plot(ImGuiPlotType plot_type, const char* label, const float* values
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return;
const ImGuiStyle& style = g.Style;
@ -3466,7 +3471,7 @@ void Checkbox(const char* label, bool* v)
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return;
const ImGuiStyle& style = g.Style;
@ -3520,7 +3525,7 @@ bool RadioButton(const char* label, bool active)
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return false;
const ImGuiStyle& style = g.Style;
@ -3709,7 +3714,7 @@ bool InputFloat(const char* label, float *v, float step, float step_fast, int de
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return false;
const ImGuiStyle& style = g.Style;
@ -3773,7 +3778,7 @@ bool InputText(const char* label, char* buf, size_t buf_size, ImGuiInputTextFlag
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return false;
const ImGuiIO& io = g.IO;
@ -3997,7 +4002,7 @@ static bool InputFloatN(const char* label, float* v, int components, int decimal
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return false;
const ImGuiStyle& style = g.Style;
@ -4094,7 +4099,7 @@ bool Combo(const char* label, int* current_item, bool (*items_getter)(void*, int
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return false;
const ImGuiStyle& style = g.Style;
@ -4209,7 +4214,7 @@ bool ColorButton(const ImVec4& col, bool small_height, bool outline_border)
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return false;
const ImGuiStyle& style = g.Style;
@ -4256,7 +4261,7 @@ bool ColorEdit4(const char* label, float col[4], bool alpha)
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return false;
const ImGuiStyle& style = g.Style;
@ -4392,7 +4397,7 @@ void ColorEditMode(ImGuiColorEditMode mode)
void Separator()
{
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return;
if (window->DC.ColumnsCount > 1)
@ -4417,7 +4422,7 @@ void Separator()
void Spacing()
{
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return;
ItemSize(ImVec2(0,0));
@ -4427,7 +4432,7 @@ static void ItemSize(ImVec2 size, ImVec2* adjust_start_offset)
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return;
const float line_height = ImMax(window->DC.CurrentLineHeight, size.y);
@ -4453,7 +4458,7 @@ void NextColumn()
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return;
if (window->DC.ColumnsCount > 1)
@ -4507,7 +4512,7 @@ void SameLine(int column_x, int spacing_w)
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return;
float x, y;
@ -4580,7 +4585,7 @@ void Columns(int columns_count, const char* id, bool border)
{
ImGuiState& g = GImGui;
ImGuiWindow* window = GetCurrentWindow();
if (window->Collapsed)
if (window->SkipItems)
return;
if (window->DC.ColumnsCount != 1)
@ -4809,6 +4814,9 @@ void ImDrawList::AddLine(const ImVec2& a, const ImVec2& b, ImU32 col)
void ImDrawList::AddArc(const ImVec2& center, float rad, ImU32 col, int a_min, int a_max, bool tris, const ImVec2& third_point_offset)
{
if ((col >> 24) == 0)
return;
static ImVec2 circle_vtx[12];
static bool circle_vtx_builds = false;
if (!circle_vtx_builds)

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