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Caching current Font, FontSize into state for quicker/simpler access.

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docking
ocornut 10 years ago
parent e16f2e898a
commit 9d16b85ed2
1 changed files with 56 additions and 45 deletions
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101
imgui.cpp
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@ -1088,7 +1088,8 @@ struct ImGuiState
ImGuiIO IO;
ImGuiStyle Style;
ImFont* Font; // (Shortcut) == FontStack.empty() ? IO.Font : FontStack.back()
float FontSize; // (Shortcut) == IO.FontGlobalScale * Font->Scale * Font->FontSize. Size of characters.
float FontSize; // (Shortcut) == FontBaseSize * g.CurrentWindow->FontWindowScale == window->FontSize()
float FontBaseSize; // (Shortcut) == IO.FontGlobalScale * Font->Scale * Font->FontSize. Size of characters.
ImVec2 FontTexUvWhitePixel; // (Shortcut) == Font->TexUvForWhite
float Time;
@ -1157,7 +1158,7 @@ struct ImGuiState
{
Initialized = false;
Font = NULL;
FontSize = 0.0f;
FontBaseSize = FontSize = 0.0f;
FontTexUvWhitePixel = ImVec2(0.0f, 0.0f);
Time = 0.0f;
@ -1261,10 +1262,8 @@ public:
void FocusItemUnregister();
ImRect Rect() const { return ImRect(Pos, Pos+Size); }
ImFont* Font() const { return GImGui->Font; }
float FontSize() const { return GImGui->FontSize * FontWindowScale; }
ImVec2 CursorPos() const { return DC.CursorPos; }
float TitleBarHeight() const { return (Flags & ImGuiWindowFlags_NoTitleBar) ? 0 : FontSize() + GImGui->Style.FramePadding.y * 2.0f; }
float CalcFontSize() const { return GImGui->FontBaseSize * FontWindowScale; }
float TitleBarHeight() const { return (Flags & ImGuiWindowFlags_NoTitleBar) ? 0 : CalcFontSize() + GImGui->Style.FramePadding.y * 2.0f; }
ImRect TitleBarRect() const { return ImRect(Pos, Pos + ImVec2(SizeFull.x, TitleBarHeight())); }
ImVec2 WindowPadding() const { return ((Flags & ImGuiWindowFlags_ChildWindow) && !(Flags & ImGuiWindowFlags_ShowBorders)) ? ImVec2(0,0) : GImGui->Style.WindowPadding; }
ImU32 Color(ImGuiCol idx, float a=1.f) const { ImVec4 c = GImGui->Style.Colors[idx]; c.w *= GImGui->Style.Alpha * a; return ImGui::ColorConvertFloat4ToU32(c); }
@ -1279,6 +1278,14 @@ static inline ImGuiWindow* GetCurrentWindow()
return g.CurrentWindow;
}
static inline void SetCurrentWindow(ImGuiWindow* window)
{
ImGuiState& g = *GImGui;
g.CurrentWindow = window;
if (window)
g.FontSize = window->CalcFontSize();
}
static inline ImGuiWindow* GetParentWindow()
{
ImGuiState& g = *GImGui;
@ -1961,6 +1968,7 @@ void ImGui::NewFrame()
float new_font_scale = ImClamp(window->FontWindowScale + g.IO.MouseWheel * 0.10f, 0.50f, 2.50f);
float scale = new_font_scale / window->FontWindowScale;
window->FontWindowScale = new_font_scale;
g.FontSize = window->CalcFontSize();
const ImVec2 offset = window->Size * (1.0f - scale) * (g.IO.MousePos - window->Pos) / window->Size;
window->Pos += offset;
@ -1975,7 +1983,7 @@ void ImGui::NewFrame()
if (!(window->Flags & ImGuiWindowFlags_NoScrollWithMouse))
{
const int scroll_lines = (window->Flags & ImGuiWindowFlags_ComboBox) ? 3 : 5;
window->NextScrollY -= g.IO.MouseWheel * window->FontSize() * scroll_lines;
window->NextScrollY -= g.IO.MouseWheel * g.FontSize * scroll_lines;
}
}
}
@ -2351,7 +2359,7 @@ static void RenderText(ImVec2 pos, const char* text, const char* text_end, bool
if (text_len > 0)
{
// Render
window->DrawList->AddText(window->Font(), window->FontSize(), pos, window->Color(ImGuiCol_Text), text, text_display_end);
window->DrawList->AddText(g.Font, g.FontSize, pos, window->Color(ImGuiCol_Text), text, text_display_end);
// Log as text
if (g.LogEnabled)
@ -2371,7 +2379,7 @@ static void RenderTextWrapped(ImVec2 pos, const char* text, const char* text_end
if (text_len > 0)
{
// Render
window->DrawList->AddText(window->Font(), window->FontSize(), pos, window->Color(ImGuiCol_Text), text, text_end, wrap_width);
window->DrawList->AddText(g.Font, g.FontSize, pos, window->Color(ImGuiCol_Text), text, text_end, wrap_width);
// Log as text
if (g.LogEnabled)
@ -2395,7 +2403,7 @@ static void RenderTextClipped(ImVec2 pos, const char* text, const char* text_end
const bool need_clipping = (pos.x + text_size.x >= clip_max.x) || (pos.y + text_size.y >= clip_max.y);
// Render
window->DrawList->AddText(window->Font(), window->FontSize(), pos, window->Color(ImGuiCol_Text), text, text_display_end, 0.0f, need_clipping ? &clip_max : NULL);
window->DrawList->AddText(g.Font, g.FontSize, pos, window->Color(ImGuiCol_Text), text, text_display_end, 0.0f, need_clipping ? &clip_max : NULL);
// Log as text
if (g.LogEnabled)
@ -2420,9 +2428,10 @@ static void RenderFrame(ImVec2 p_min, ImVec2 p_max, ImU32 fill_col, bool border,
// Render a triangle to denote expanded/collapsed state
static void RenderCollapseTriangle(ImVec2 p_min, bool opened, float scale, bool shadow)
{
ImGuiState& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
const float h = window->FontSize() * 1.00f;
const float h = g.FontSize * 1.00f;
const float r = h * 0.40f * scale;
ImVec2 center = p_min + ImVec2(h*0.50f, h*0.50f*scale);
@ -2450,7 +2459,7 @@ static void RenderCollapseTriangle(ImVec2 p_min, bool opened, float scale, bool
// CalcTextSize("") should return ImVec2(0.0f, GImGui->FontSize)
ImVec2 ImGui::CalcTextSize(const char* text, const char* text_end, bool hide_text_after_double_hash, float wrap_width)
{
ImGuiWindow* window = GetCurrentWindow();
ImGuiState& g = *GImGui;
const char* text_display_end;
if (hide_text_after_double_hash)
@ -2458,8 +2467,8 @@ ImVec2 ImGui::CalcTextSize(const char* text, const char* text_end, bool hide_tex
else
text_display_end = text_end;
ImFont* font = window->Font();
const float font_size = window->FontSize();
ImFont* font = g.Font;
const float font_size = g.FontSize;
ImVec2 text_size = font->CalcTextSizeA(font_size, FLT_MAX, wrap_width, text, text_display_end, NULL);
// Cancel out character spacing for the last character of a line (it is baked into glyph->XAdvance field)
@ -2963,7 +2972,7 @@ bool ImGui::Begin(const char* name, bool* p_opened, const ImVec2& size_on_first_
// Add to stack
g.CurrentWindowStack.push_back(window);
g.CurrentWindow = window;
SetCurrentWindow(window);
// Process SetNextWindow***() calls
bool window_pos_set_by_api = false;
@ -3331,7 +3340,7 @@ bool ImGui::Begin(const char* name, bool* p_opened, const ImVec2& size_on_first_
if (!(window->Flags & ImGuiWindowFlags_NoCollapse))
{
RenderCollapseTriangle(window->Pos + style.FramePadding, !window->Collapsed, 1.0f, true);
text_min.x += window->FontSize() + style.ItemInnerSpacing.x;
text_min.x += g.FontSize + style.ItemInnerSpacing.x;
}
const ImVec2 text_size = CalcTextSize(name, NULL, true);
@ -3418,7 +3427,7 @@ void ImGui::End()
// Pop
// NB: we don't clear 'window->RootWindow'. The pointer is allowed to live until the next call to Begin().
g.CurrentWindowStack.pop_back();
g.CurrentWindow = g.CurrentWindowStack.empty() ? NULL : g.CurrentWindowStack.back();
SetCurrentWindow(g.CurrentWindowStack.empty() ? NULL : g.CurrentWindowStack.back());
}
// Vertical scrollbar
@ -3549,7 +3558,8 @@ static void SetFont(ImFont* font)
IM_ASSERT(font && font->IsLoaded());
IM_ASSERT(font->Scale > 0.0f);
g.Font = font;
g.FontSize = g.IO.FontGlobalScale * g.Font->FontSize * g.Font->Scale;
g.FontBaseSize = g.IO.FontGlobalScale * g.Font->FontSize * g.Font->Scale;
g.FontSize = g.CurrentWindow ? g.CurrentWindow->CalcFontSize() : 0.0f;
g.FontTexUvWhitePixel = g.Font->ContainerAtlas->TexUvWhitePixel;
}
@ -3948,15 +3958,14 @@ ImVec2 ImGui::GetWindowContentRegionMax()
float ImGui::GetTextLineHeight()
{
ImGuiWindow* window = GetCurrentWindow();
return window->FontSize();
ImGuiState& g = *GImGui;
return g.FontSize;
}
float ImGui::GetTextLineHeightWithSpacing()
{
ImGuiState& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
return window->FontSize() + g.Style.ItemSpacing.y;
return g.FontSize + g.Style.ItemSpacing.y;
}
ImDrawList* ImGui::GetWindowDrawList()
@ -3967,20 +3976,22 @@ ImDrawList* ImGui::GetWindowDrawList()
ImFont* ImGui::GetWindowFont()
{
ImGuiWindow* window = GetCurrentWindow();
return window->Font();
ImGuiState& g = *GImGui;
return g.Font;
}
float ImGui::GetWindowFontSize()
{
ImGuiWindow* window = GetCurrentWindow();
return window->FontSize();
ImGuiState& g = *GImGui;
return g.FontSize;
}
void ImGui::SetWindowFontScale(float scale)
{
ImGuiState& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
window->FontWindowScale = scale;
g.FontSize = window->CalcFontSize();
}
// NB: internally we store CursorPos in absolute screen coordinates because it is more convenient.
@ -4235,7 +4246,7 @@ void ImGui::AlignFirstTextHeightToWidgets()
return;
// Declare a dummy item size to that upcoming items that are smaller will center-align on the newly expanded line height.
ItemSize(ImVec2(0, window->FontSize() + g.Style.FramePadding.y*2), g.Style.FramePadding.y);
ItemSize(ImVec2(0, g.FontSize + g.Style.FramePadding.y*2), g.Style.FramePadding.y);
ImGui::SameLine(0, 0);
}
@ -4697,7 +4708,7 @@ bool ImGui::CollapsingHeader(const char* label, const char* str_id, bool display
}
// FIXME: we don't provide our width so that it doesn't get feed back into AutoFit. Should manage that better so we can still hover without extending ContentsSize
const ImRect text_bb(bb.Min, bb.Min + ImVec2(window->FontSize() + style.FramePadding.x*2*2,0) + label_size);
const ImRect text_bb(bb.Min, bb.Min + ImVec2(g.FontSize + style.FramePadding.x*2*2,0) + label_size);
ItemSize(ImVec2(text_bb.GetSize().x, bb.GetSize().y), display_frame ? style.FramePadding.y : 0.0f);
// When logging is enabled, if automatically expand tree nodes (but *NOT* collapsing headers.. seems like sensible behavior).
@ -4729,7 +4740,7 @@ bool ImGui::CollapsingHeader(const char* label, const char* str_id, bool display
const char log_prefix[] = "\n##";
LogText(bb.Min + style.FramePadding, log_prefix, log_prefix+3);
}
RenderText(bb.Min + style.FramePadding + ImVec2(window->FontSize() + style.FramePadding.x*2,0), label);
RenderText(bb.Min + style.FramePadding + ImVec2(g.FontSize + style.FramePadding.x*2,0), label);
if (g.LogEnabled)
{
const char log_suffix[] = "##";
@ -4741,10 +4752,10 @@ bool ImGui::CollapsingHeader(const char* label, const char* str_id, bool display
// Unframed typed for tree nodes
if ((held && hovered) || hovered)
RenderFrame(bb.Min, bb.Max, col, false);
RenderCollapseTriangle(bb.Min + ImVec2(style.FramePadding.x, window->FontSize()*0.15f), opened, 0.70f, false);
RenderCollapseTriangle(bb.Min + ImVec2(style.FramePadding.x, g.FontSize*0.15f), opened, 0.70f, false);
if (g.LogEnabled)
LogText(bb.Min, ">");
RenderText(bb.Min + ImVec2(window->FontSize() + style.FramePadding.x*2,0), label);
RenderText(bb.Min + ImVec2(g.FontSize + style.FramePadding.x*2,0), label);
}
return opened;
@ -4758,7 +4769,7 @@ void ImGui::Bullet()
return;
const ImGuiStyle& style = g.Style;
const float line_height = window->FontSize();
const float line_height = g.FontSize;
const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(line_height, line_height));
ItemSize(bb);
if (!ItemAdd(bb, NULL))
@ -4784,7 +4795,7 @@ void ImGui::BulletTextV(const char* fmt, va_list args)
const char* text_end = text_begin + ImFormatStringV(g.TempBuffer, IM_ARRAYSIZE(g.TempBuffer), fmt, args);
const ImGuiStyle& style = g.Style;
const float line_height = window->FontSize();
const float line_height = g.FontSize;
const ImVec2 label_size = CalcTextSize(text_begin, text_end, true);
const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(line_height + (label_size.x > 0.0f ? (style.FramePadding.x*2) : 0.0f),0) + label_size); // Empty text doesn't add padding
ItemSize(bb);
@ -4794,7 +4805,7 @@ void ImGui::BulletTextV(const char* fmt, va_list args)
// Render
const float bullet_size = line_height*0.15f;
window->DrawList->AddCircleFilled(bb.Min + ImVec2(style.FramePadding.x + line_height*0.5f, line_height*0.5f), bullet_size, window->Color(ImGuiCol_Text));
RenderText(bb.Min+ImVec2(window->FontSize() + style.FramePadding.x*2,0), text_begin, text_end);
RenderText(bb.Min+ImVec2(g.FontSize + style.FramePadding.x*2,0), text_begin, text_end);
}
void ImGui::BulletText(const char* fmt, ...)
@ -5856,7 +5867,7 @@ bool ImGui::InputFloat(const char* label, float *v, float step, float step_fast,
ImGui::BeginGroup();
ImGui::PushID(label);
const ImVec2 button_sz = ImVec2(window->FontSize(), window->FontSize()) + style.FramePadding * 2;
const ImVec2 button_sz = ImVec2(g.FontSize, g.FontSize) + style.FramePadding * 2;
if (step > 0.0f)
ImGui::PushItemWidth(ImMax(1.0f, w - (button_sz.x + style.ItemInnerSpacing.x)*2));
@ -6101,15 +6112,15 @@ bool ImGui::InputText(const char* label, char* buf, size_t buf_size, ImGuiInputT
// Update some data if we are active or last active
edit_state.Width = w + style.FramePadding.x;
edit_state.BufSizeA = buf_size;
edit_state.Font = window->Font();
edit_state.FontSize = window->FontSize();
edit_state.Font = g.Font;
edit_state.FontSize = g.FontSize;
edit_state.UpdateScrollOffset();
}
if (g.ActiveId == id)
{
// Edit in progress
const float mx = g.IO.MousePos.x - frame_bb.Min.x - style.FramePadding.x;
const float my = window->FontSize()*0.5f; // Flatten mouse because we are doing a single-line edit
const float my = g.FontSize*0.5f; // Flatten mouse because we are doing a single-line edit
if (select_all || (hovered && io.MouseDoubleClicked[0]))
{
@ -6294,8 +6305,8 @@ bool ImGui::InputText(const char* label, char* buf, size_t buf_size, ImGuiInputT
RenderFrame(frame_bb.Min, frame_bb.Max, window->Color(ImGuiCol_FrameBg), true, style.FrameRounding);
const ImVec2 font_off_up = ImVec2(0.0f,window->FontSize()+1.0f); // FIXME: those offsets are part of the style or font API
const ImVec2 font_off_dn = ImVec2(0.0f,2.0f);
const ImVec2 font_off_up = ImVec2(0.0f, g.FontSize+1.0f); // FIXME: those offsets are part of the style or font API
const ImVec2 font_off_dn = ImVec2(0.0f, 2.0f);
if (g.ActiveId == id)
{
@ -6312,7 +6323,7 @@ bool ImGui::InputText(const char* label, char* buf, size_t buf_size, ImGuiInputT
//const float render_scroll_x = (g.ActiveId == id) ? edit_state.ScrollX : 0.0f;
const float render_scroll_x = (edit_state.Id == id) ? edit_state.ScrollX : 0.0f;
ImGuiTextEditState::RenderTextScrolledClipped(window->Font(), window->FontSize(), buf, frame_bb.Min + style.FramePadding, w + style.FramePadding.x, render_scroll_x);
ImGuiTextEditState::RenderTextScrolledClipped(g.Font, g.FontSize, buf, frame_bb.Min + style.FramePadding, w + style.FramePadding.x, render_scroll_x);
if (g.ActiveId == id)
{
@ -6324,7 +6335,7 @@ bool ImGui::InputText(const char* label, char* buf, size_t buf_size, ImGuiInputT
// Notify OS of text input position for advanced IME
if (io.ImeSetInputScreenPosFn && ImLengthSqr(edit_state.InputCursorScreenPos - cursor_pos) > 0.0001f)
io.ImeSetInputScreenPosFn((int)cursor_pos.x - 1, (int)(cursor_pos.y - window->FontSize())); // -1 x offset so that Windows IME can cover our cursor. Bit of an extra nicety.
io.ImeSetInputScreenPosFn((int)cursor_pos.x - 1, (int)(cursor_pos.y - g.FontSize)); // -1 x offset so that Windows IME can cover our cursor. Bit of an extra nicety.
edit_state.InputCursorScreenPos = cursor_pos;
}
@ -6511,7 +6522,7 @@ bool ImGui::Combo(const char* label, int* current_item, bool (*items_getter)(voi
if (!ItemAdd(total_bb, &id))
return false;
const float arrow_size = (window->FontSize() + style.FramePadding.x * 2.0f);
const float arrow_size = (g.FontSize + style.FramePadding.x * 2.0f);
const bool hovered = IsHovered(frame_bb, id);
bool value_changed = false;
@ -6757,7 +6768,7 @@ bool ImGui::ColorButton(const ImVec4& col, bool small_height, bool outline_borde
const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID("#colorbutton");
const float square_size = window->FontSize();
const float square_size = g.FontSize;
const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(square_size + style.FramePadding.x*2, square_size + (small_height ? 0 : style.FramePadding.y*2)));
ItemSize(bb, small_height ? 0.0f : style.FramePadding.y);
if (!ItemAdd(bb, &id))
@ -6805,7 +6816,7 @@ bool ImGui::ColorEdit4(const char* label, float col[4], bool alpha)
const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID(label);
const float w_full = ImGui::CalcItemWidth();
const float square_sz = (window->FontSize() + style.FramePadding.x * 2.0f);
const float square_sz = (g.FontSize + style.FramePadding.x * 2.0f);
ImGuiColorEditMode edit_mode = window->DC.ColorEditMode;
if (edit_mode == ImGuiColorEditMode_UserSelect || edit_mode == ImGuiColorEditMode_UserSelectShowButton)

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