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GuiTextBox(): Do not get previous code point when at start of string (#420)

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Co-authored-by: segcore <segcore@github.com>
This commit is contained in:
segcore
2024-09-23 02:25:21 +08:00
committed by GitHub
parent 20950c555d
commit 38bc79b432
1 changed files with 8 additions and 7 deletions
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15
src/raygui.h
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@ -2611,16 +2611,17 @@ int GuiTextBox(Rectangle bounds, char *text, int textSize, bool editMode)
if (IsKeyPressed(KEY_BACKSPACE) || (autoCursorDelayCounter%RAYGUI_TEXTBOX_AUTO_CURSOR_DELAY) == 0) // Delay every movement some frames if (IsKeyPressed(KEY_BACKSPACE) || (autoCursorDelayCounter%RAYGUI_TEXTBOX_AUTO_CURSOR_DELAY) == 0) // Delay every movement some frames
{ {
int prevCodepointSize = 0; int prevCodepointSize = 0;
GetCodepointPrevious(text + textBoxCursorIndex, &prevCodepointSize);
// Move backward text from cursor position
for (int i = (textBoxCursorIndex - prevCodepointSize); i < textLength; i++) text[i] = text[i + prevCodepointSize];
// TODO Check: >= cursor+codepointsize and <= length-codepointsize
// Prevent cursor index from decrementing past 0 // Prevent cursor index from decrementing past 0
if (textBoxCursorIndex > 0) if (textBoxCursorIndex > 0)
{ {
GetCodepointPrevious(text + textBoxCursorIndex, &prevCodepointSize);
// Move backward text from cursor position
for (int i = (textBoxCursorIndex - prevCodepointSize); i < textLength; i++) text[i] = text[i + prevCodepointSize];
// TODO Check: >= cursor+codepointsize and <= length-codepointsize
textBoxCursorIndex -= codepointSize; textBoxCursorIndex -= codepointSize;
textLength -= codepointSize; textLength -= codepointSize;
} }
@ -2638,7 +2639,7 @@ int GuiTextBox(Rectangle bounds, char *text, int textSize, bool editMode)
if (IsKeyPressed(KEY_LEFT) || (autoCursorDelayCounter%RAYGUI_TEXTBOX_AUTO_CURSOR_DELAY) == 0) // Delay every movement some frames if (IsKeyPressed(KEY_LEFT) || (autoCursorDelayCounter%RAYGUI_TEXTBOX_AUTO_CURSOR_DELAY) == 0) // Delay every movement some frames
{ {
int prevCodepointSize = 0; int prevCodepointSize = 0;
GetCodepointPrevious(text + textBoxCursorIndex, &prevCodepointSize); if (textBoxCursorIndex > 0) GetCodepointPrevious(text + textBoxCursorIndex, &prevCodepointSize);
if (textBoxCursorIndex >= prevCodepointSize) textBoxCursorIndex -= prevCodepointSize; if (textBoxCursorIndex >= prevCodepointSize) textBoxCursorIndex -= prevCodepointSize;
} }