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InputText: Word-Wrap: added ImGuiInputTextFlags_WordWrap support. (#3237, #952, #1062, #7363)

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ocornut 2025-08-29 18:17:46 +02:00
parent e422a38e4c
commit a82f66a9b0
3 changed files with 135 additions and 34 deletions
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11
imgui_internal.h
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@ -1015,6 +1015,15 @@ enum ImGuiHoveredFlagsPrivate_
// Extend ImGuiInputTextFlags_
enum ImGuiInputTextFlagsPrivate_
{
// [Experimental]
// Word-wrapping caveats:
// - Not well tested yet. Please report any incorrect cursor movement, selection behavior etc. bug to https://github.com/ocornut/imgui/issues/3237.
// - With our current design it is _much_ slower than a regular text field. Editing a <50K buffer will generally be ok, but editing a 1MB buffer will waste meaningful amount of CPU.
// We are likely to not make the feature public until this is fixed (which requires bigger changes to InputText will be be generally desirable for this and other features)
// - Wrapping of long words/sections (e.g. words that are larger than available width) is currently visually not pleasing.
// - Vertical scrollbar is currently always visible.
ImGuiInputTextFlags_WordWrap = 1 << 24, // InputTextMultine(): wrap lines that are too long. (Ref #3237, #952, #1062)
// [Internal]
ImGuiInputTextFlags_Multiline = 1 << 26, // For internal use by InputTextMultiline()
ImGuiInputTextFlags_MergedItem = 1 << 27, // For internal use by TempInputText(), will skip calling ItemAdd(). Require bounding-box to strictly match.
@ -1235,11 +1244,13 @@ struct IMGUI_API ImGuiInputTextState
int BufCapacity; // end-user buffer capacity (include zero terminator)
ImVec2 Scroll; // horizontal offset (managed manually) + vertical scrolling (pulled from child window's own Scroll.y)
int LineCount; // last line count (solely for debugging)
float WrapWidth; // word-wrapping width
float CursorAnim; // timer for cursor blink, reset on every user action so the cursor reappears immediately
bool CursorFollow; // set when we want scrolling to follow the current cursor position (not always!)
bool SelectedAllMouseLock; // after a double-click to select all, we ignore further mouse drags to update selection
bool Edited; // edited this frame
bool WantReloadUserBuf; // force a reload of user buf so it may be modified externally. may be automatic in future version.
ImS8 LastMoveDirectionLR; // ImGuiDir_Left or ImGuiDir_Right. track last movement direction so when cursor cross over a word-wrapping boundaries we can display it on either line depending on last move.s
int ReloadSelectionStart;
int ReloadSelectionEnd;