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Fix: Layouter::GetCharAtPosition counting wrong

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Bug introduced in commit 60399e
This commit is contained in:
Niels Martin Hansen 2023-06-18 19:26:53 +02:00
parent 31cc349a09
commit ed3f14686d
1 changed files with 4 additions and 5 deletions
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9
src/gfx_layout.cpp
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@ -255,9 +255,9 @@ Point Layouter::GetCharPosition(std::string_view::const_iterator ch) const
}
/**
* Get the character that is at a position.
* Get the character that is at a pixel position in the first line of the layouted text.
* @param x Position in the string.
* @return Index of the position or -1 if no character is at the position.
* @return String offset of the position (bytes) or -1 if no character is at the position.
*/
ptrdiff_t Layouter::GetCharAtPosition(int x) const
{
@ -278,9 +278,8 @@ ptrdiff_t Layouter::GetCharAtPosition(int x) const
size_t index = run.GetGlyphToCharMap()[i];
size_t cur_idx = 0;
int char_index = 0;
for (auto str = this->string.begin(); str != this->string.end(); char_index++) {
if (cur_idx == index) return char_index;
for (auto str = this->string.begin(); str != this->string.end();) {
if (cur_idx == index) return str - this->string.begin();
WChar c = Utf8Consume(str);
cur_idx += line->GetInternalCharLength(c);