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Internals: added indent, shallow tweaks + unused context pointer to InputTextCalcTextLenAndLineCount() to reduce noise in wip patch.

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ocornut
2025-08-18 16:43:44 +02:00
parent 0ef9610e70
commit 8dc457fda2
3 changed files with 26 additions and 20 deletions
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2
imgui.h
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@@ -3832,7 +3832,7 @@ struct ImFont
// 'max_width' stops rendering after a certain width (could be turned into a 2d size). FLT_MAX to disable.
// 'wrap_width' enable automatic word-wrapping across multiple lines to fit into given width. 0.0f to disable.
IMGUI_API ImFontBaked* GetFontBaked(float font_size, float density = -1.0f); // Get or create baked data for given size
IMGUI_API ImVec2 CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end = NULL, const char** remaining = NULL); // utf8
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);

6
imgui_draw.cpp
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@@ -5458,7 +5458,7 @@ const char* ImFont::CalcWordWrapPosition(float size, const char* text, const cha
return s;
}
ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining)
ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** out_remaining)
{
if (!text_end)
text_end = text_begin + ImStrlen(text_begin); // FIXME-OPT: Need to avoid this.
@@ -5536,8 +5536,8 @@ ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, cons
if (line_width > 0 || text_size.y == 0.0f)
text_size.y += line_height;
if (remaining)
*remaining = s;
if (out_remaining != NULL)
*out_remaining = s;
return text_size;
}

38
imgui_widgets.cpp
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@@ -135,7 +135,7 @@ static const ImU64 IM_U64_MAX = (2ULL * 9223372036854775807LL + 1);
// For InputTextEx()
static bool InputTextFilterCharacter(ImGuiContext* ctx, unsigned int* p_char, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data, bool input_source_is_clipboard = false);
static int InputTextCalcTextLenAndLineCount(const char* text_begin, const char** out_text_end);
static int InputTextCalcTextLenAndLineCount(ImGuiContext* ctx, const char* text_begin, const char** out_text_end);
static ImVec2 InputTextCalcTextSize(ImGuiContext* ctx, const char* text_begin, const char* text_end, const char** remaining = NULL, ImVec2* out_offset = NULL, bool stop_on_new_line = false);
//-------------------------------------------------------------------------
@@ -3941,20 +3941,22 @@ bool ImGui::InputTextWithHint(const char* label, const char* hint, char* buf, si
}
// This is only used in the path where the multiline widget is inactive.
static int InputTextCalcTextLenAndLineCount(const char* text_begin, const char** out_text_end)
static int InputTextCalcTextLenAndLineCount(ImGuiContext*, const char* text_begin, const char** out_text_end)
{
int line_count = 0;
const char* s = text_begin;
while (true)
{
const char* s_eol = strchr(s, '\n');
line_count++;
if (s_eol == NULL)
while (true)
{
s = s + ImStrlen(s);
break;
const char* s_eol = strchr(s, '\n');
line_count++;
if (s_eol == NULL)
{
s = s + ImStrlen(s);
break;
}
s = s_eol + 1;
}
s = s_eol + 1;
}
*out_text_end = s;
return line_count;
@@ -5259,7 +5261,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
}
// Render text. We currently only render selection when the widget is active or while scrolling.
// FIXME: We could remove the '&& render_cursor' to keep rendering selection when inactive.
// FIXME: This is one of the messiest piece of the whole codebase.
if (render_cursor || render_selection)
{
IM_ASSERT(state != NULL);
@@ -5285,14 +5287,17 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
const char* selmin_ptr = render_selection ? text_begin + ImMin(state->Stb->select_start, state->Stb->select_end) : NULL;
// Count lines and find line number for cursor and selection ends
// FIXME: Switch to zero-based index to reduce confusion.
int line_count = 1;
if (is_multiline)
{
for (const char* s = text_begin; (s = (const char*)ImMemchr(s, '\n', (size_t)(text_end - s))) != NULL; s++)
{
if (cursor_line_no == -1 && s >= cursor_ptr) { cursor_line_no = line_count; }
if (selmin_line_no == -1 && s >= selmin_ptr) { selmin_line_no = line_count; }
line_count++;
for (const char* s = text_begin; (s = (const char*)ImMemchr(s, '\n', (size_t)(text_end - s))) != NULL; s++)
{
if (cursor_line_no == -1 && s >= cursor_ptr) { cursor_line_no = line_count; }
if (selmin_line_no == -1 && s >= selmin_ptr) { selmin_line_no = line_count; }
line_count++;
}
}
}
if (cursor_line_no == -1)
@@ -5372,7 +5377,8 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
else
{
ImVec2 rect_size = InputTextCalcTextSize(&g, p, text_selected_end, &p, NULL, true);
if (rect_size.x <= 0.0f) rect_size.x = IM_TRUNC(g.FontBaked->GetCharAdvance((ImWchar)' ') * 0.50f); // So we can see selected empty lines
if (rect_size.x <= 0.0f)
rect_size.x = IM_TRUNC(g.FontBaked->GetCharAdvance((ImWchar)' ') * 0.50f); // So we can see selected empty lines
ImRect rect(rect_pos + ImVec2(0.0f, bg_offy_up - g.FontSize), rect_pos + ImVec2(rect_size.x, bg_offy_dn));
rect.ClipWith(clip_rect);
if (rect.Overlaps(clip_rect))
@@ -5419,7 +5425,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
{
// Render text only (no selection, no cursor)
if (is_multiline)
text_size = ImVec2(inner_size.x, InputTextCalcTextLenAndLineCount(buf_display, &buf_display_end) * g.FontSize); // We don't need width
text_size = ImVec2(inner_size.x, InputTextCalcTextLenAndLineCount(&g, buf_display, &buf_display_end) * g.FontSize); // We don't need width
else if (!is_displaying_hint && g.ActiveId == id)
buf_display_end = buf_display + state->TextLen;
else if (!is_displaying_hint)