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ImFont::RenderText() takes ImDrawTextFlags_CpuFineClip instead of bool cpu_fine_clip + forward ImDrawTextFlags to word-wrap code.

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(for #3237, #952, #1062, #7363)
This commit is contained in:
ocornut 2025-08-27 22:17:28 +02:00
parent 3cc7d1c81a
commit 11fff1ccf5
3 changed files with 11 additions and 7 deletions
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3
imgui.h
View file

@ -233,6 +233,7 @@ typedef int ImGuiTableBgTarget; // -> enum ImGuiTableBgTarget_ // Enum: A
// - In VS Code, CLion, etc.: CTRL+click can follow symbols inside comments.
typedef int ImDrawFlags; // -> enum ImDrawFlags_ // Flags: for ImDrawList functions
typedef int ImDrawListFlags; // -> enum ImDrawListFlags_ // Flags: for ImDrawList instance
typedef int ImDrawTextFlags; // -> enum ImDrawTextFlags_ // Internal, do not use!
typedef int ImFontFlags; // -> enum ImFontFlags_ // Flags: for ImFont
typedef int ImFontAtlasFlags; // -> enum ImFontAtlasFlags_ // Flags: for ImFontAtlas
typedef int ImGuiBackendFlags; // -> enum ImGuiBackendFlags_ // Flags: for io.BackendFlags
@ -3837,7 +3838,7 @@ struct ImFont
IMGUI_API ImVec2 CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end = NULL, const char** out_remaining = NULL);
IMGUI_API const char* CalcWordWrapPosition(float size, const char* text, const char* text_end, float wrap_width);
IMGUI_API void RenderChar(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, ImWchar c, const ImVec4* cpu_fine_clip = NULL);
IMGUI_API void RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width = 0.0f, bool cpu_fine_clip = false);
IMGUI_API void RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width = 0.0f, ImDrawTextFlags flags = 0);
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
inline const char* CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) { return CalcWordWrapPosition(LegacySize * scale, text, text_end, wrap_width); }
#endif

14
imgui_draw.cpp
View file

@ -1718,7 +1718,7 @@ void ImDrawList::AddText(ImFont* font, float font_size, const ImVec2& pos, ImU32
clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z);
clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w);
}
font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL);
font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, (cpu_fine_clip_rect != NULL) ? ImDrawTextFlags_CpuFineClip : ImDrawTextFlags_None);
}
void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end)
@ -5597,7 +5597,8 @@ void ImFont::RenderChar(ImDrawList* draw_list, float size, const ImVec2& pos, Im
}
// Note: as with every ImDrawList drawing function, this expects that the font atlas texture is bound.
void ImFont::RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width, bool cpu_fine_clip)
// DO NOT CALL DIRECTLY THIS WILL CHANGE WIDLY IN 2025-2025. Use ImDrawList::AddText().
void ImFont::RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width, ImDrawTextFlags flags)
{
// Align to be pixel perfect
begin:
@ -5627,8 +5628,8 @@ begin:
// FIXME-OPT: This is not optimal as do first do a search for \n before calling CalcWordWrapPosition().
// If the specs for CalcWordWrapPosition() were reworked to optionally return on \n we could combine both.
// However it is still better than nothing performing the fast-forward!
s = ImFontCalcWordWrapPositionEx(this, size, s, line_end ? line_end : text_end, wrap_width);
s = ImTextCalcWordWrapNextLineStart(s, text_end);
s = ImFontCalcWordWrapPositionEx(this, size, s, line_end ? line_end : text_end, wrap_width, flags);
s = ImTextCalcWordWrapNextLineStart(s, text_end, flags);
}
else
{
@ -5663,6 +5664,7 @@ begin:
ImDrawIdx* idx_write = draw_list->_IdxWritePtr;
unsigned int vtx_index = draw_list->_VtxCurrentIdx;
const int cmd_count = draw_list->CmdBuffer.Size;
const bool cpu_fine_clip = (flags & ImDrawTextFlags_CpuFineClip) != 0;
const ImU32 col_untinted = col | ~IM_COL32_A_MASK;
const char* word_wrap_eol = NULL;
@ -5673,7 +5675,7 @@ begin:
{
// Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
if (!word_wrap_eol)
word_wrap_eol = ImFontCalcWordWrapPositionEx(this, size, s, text_end, wrap_width - (x - origin_x));
word_wrap_eol = ImFontCalcWordWrapPositionEx(this, size, s, text_end, wrap_width - (x - origin_x), flags);
if (s >= word_wrap_eol)
{
@ -5682,7 +5684,7 @@ begin:
if (y > clip_rect.w)
break; // break out of main loop
word_wrap_eol = NULL;
s = ImTextCalcWordWrapNextLineStart(s, text_end); // Wrapping skips upcoming blanks
s = ImTextCalcWordWrapNextLineStart(s, text_end, flags); // Wrapping skips upcoming blanks
continue;
}
}

1
imgui_internal.h
View file

@ -434,6 +434,7 @@ IMGUI_API int ImTextCountLines(const char* in_text, const char* in_tex
enum ImDrawTextFlags_
{
ImDrawTextFlags_None = 0,
ImDrawTextFlags_CpuFineClip = 1 << 0, // Must be == 1/true for legacy with 'bool cpu_fine_clip' arg to RenderText()
ImDrawTextFlags_WrapKeepBlanks = 1 << 1,
ImDrawTextFlags_StopOnNewLine = 1 << 2,
};