mirror of https://github.com/OpenTTD/OpenTTD.git
Fix: FallbackParagraphLayouter wasn't reverse-mapping glyphs to character indexes right
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5db4473ae8
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b52e526017
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@ -46,7 +46,7 @@ public:
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int glyph_count; ///< The number of glyphs.
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public:
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FallbackVisualRun(Font *font, const WChar *chars, int glyph_count, int x);
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FallbackVisualRun(Font *font, const WChar *chars, int glyph_count, int char_offset, int x);
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FallbackVisualRun(FallbackVisualRun &&other) noexcept;
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~FallbackVisualRun() override;
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const Font *GetFont() const override;
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@ -107,9 +107,10 @@ public:
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* @param font The font to use for this run.
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* @param chars The characters to use for this run.
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* @param char_count The number of characters in this run.
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* @param char_offset This run's offset from the start of the layout input string.
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* @param x The initial x position for this run.
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*/
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FallbackParagraphLayout::FallbackVisualRun::FallbackVisualRun(Font *font, const WChar *chars, int char_count, int x) :
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FallbackParagraphLayout::FallbackVisualRun::FallbackVisualRun(Font *font, const WChar *chars, int char_count, int char_offset, int x) :
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font(font), glyph_count(char_count)
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{
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const bool isbuiltin = font->fc->IsBuiltInFont();
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@ -131,7 +132,7 @@ FallbackParagraphLayout::FallbackVisualRun::FallbackVisualRun(Font *font, const
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this->positions[2 * i + 1] = 0; // No ascender adjustment.
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}
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this->positions[2 * i + 2] = this->positions[2 * i] + font->fc->GetGlyphWidth(this->glyphs[i]);
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this->glyph_to_char[i] = i;
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this->glyph_to_char[i] = char_offset + i;
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}
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}
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@ -295,7 +296,7 @@ std::unique_ptr<const ParagraphLayouter::Line> FallbackParagraphLayout::NextLine
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if (*this->buffer == '\0') {
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/* Only a newline. */
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this->buffer = nullptr;
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l->emplace_back(this->runs.begin()->second, this->buffer, 0, 0);
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l->emplace_back(this->runs.begin()->second, this->buffer, 0, 0, 0);
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return l;
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}
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@ -324,7 +325,7 @@ std::unique_ptr<const ParagraphLayouter::Line> FallbackParagraphLayout::NextLine
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if (this->buffer == next_run) {
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int w = l->GetWidth();
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l->emplace_back(iter->second, begin, this->buffer - begin, w);
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l->emplace_back(iter->second, begin, this->buffer - begin, begin - this->buffer_begin, w);
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++iter;
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assert(iter != this->runs.end());
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@ -369,7 +370,7 @@ std::unique_ptr<const ParagraphLayouter::Line> FallbackParagraphLayout::NextLine
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if (l->size() == 0 || last_char - begin > 0) {
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int w = l->GetWidth();
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l->emplace_back(iter->second, begin, last_char - begin, w);
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l->emplace_back(iter->second, begin, last_char - begin, begin - this->buffer_begin, w);
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}
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return l;
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}
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