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This commit is contained in:
Ari Vuollet
2023-09-09 14:45:22 +03:00
parent 49497d1a78
commit 0c8064fb0c
4 changed files with 25 additions and 27 deletions
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40
Source/Engine/Render2D/Font.cpp
View File

@@ -163,19 +163,18 @@ void Font::Invalidate()
#endif
}
void Font::ProcessText(const StringView& text, Array<FontLineCache>& outputLines, const TextLayoutOptions& layout, Array<FontCharacterEntry>& characterEntries, Array<float>& characterKernings)
void Font::ProcessText(const StringView& text, Array<FontLineCache>& outputLines, const TextLayoutOptions& layout, Array<FontCharacterEntry>& characterEntries, Array<int32>& characterKernings)
{
int32 textLength = text.Length();
if (textLength == 0)
return;
float cursorX = 0;
int32 cursorX = 0;
int32 kerning;
FontLineCache tmpLine;
FontCharacterEntry entry;
FontCharacterEntry previous;
Array<FontCharacterEntry> CharacterEntries(textLength);
Char previous = 0;
float scale = layout.Scale / FontManager::FontScale;
float boundsWidth = layout.Bounds.GetWidth();
int32 boundsWidth = layout.Bounds.GetWidth() / scale;
float baseLinesDistance = static_cast<float>(_height) * layout.BaseLinesGapScale * scale;
tmpLine.Location = Float2::Zero;
tmpLine.Size = Float2::Zero;
@@ -183,22 +182,22 @@ void Font::ProcessText(const StringView& text, Array<FontLineCache>& outputLines
tmpLine.LastCharIndex = -1;
int32 lastWrapCharIndex = INVALID_INDEX;
float lastWrapCharX = 0;
int32 lastWrapCharX = 0;
bool lastMoveLine = false;
// Process each character to split text into single lines
for (int32 currentIndex = 0; currentIndex < textLength;)
{
bool moveLine = false;
float xAdvance = 0;
int32 xAdvance = 0;
int32 nextCharIndex = currentIndex + 1;
// Cache current character
const Char currentChar = text[currentIndex];
const bool isWhitespace = StringUtils::IsWhitespace(currentChar);
const bool isWrapChar = isWhitespace || StringUtils::IsUpper(currentChar) || !StringUtils::IsAlnum(currentChar);
// Check if character can wrap words
const bool isWrapChar = !StringUtils::IsAlnum(currentChar) || isWhitespace || StringUtils::IsUpper(currentChar);
if (isWrapChar && currentIndex != 0)
{
lastWrapCharIndex = currentIndex;
@@ -219,16 +218,16 @@ void Font::ProcessText(const StringView& text, Array<FontLineCache>& outputLines
GetCharacter(currentChar, entry);
// Get kerning
if (!isWhitespace && previous.IsValid)
if (!isWhitespace && previous != 0)
{
kerning = entry.Font->GetKerning(previous.Character, entry.Character);
kerning = GetKerning(previous, entry.Character);
}
else
{
kerning = 0;
}
previous = entry;
xAdvance = (kerning + entry.AdvanceX) * scale;
previous = currentChar;
xAdvance = (kerning + entry.AdvanceX);
// Check if character fits the line or skip wrapping
if (cursorX + xAdvance <= boundsWidth || layout.TextWrapping == TextWrapping::NoWrap)
@@ -279,15 +278,14 @@ void Font::ProcessText(const StringView& text, Array<FontLineCache>& outputLines
}
characterEntries.Add(entry);
characterKernings.Add((float)kerning * scale);
characterKernings.Add(kerning);
}
// Check if move to another line
if (moveLine)
{
// Add line
tmpLine.Size.X = cursorX;
tmpLine.Size.X = (float)cursorX * scale;
tmpLine.Size.Y = baseLinesDistance;
tmpLine.LastCharIndex = Math::Max(tmpLine.LastCharIndex, tmpLine.FirstCharIndex);
outputLines.Add(tmpLine);
@@ -299,7 +297,7 @@ void Font::ProcessText(const StringView& text, Array<FontLineCache>& outputLines
cursorX = 0;
lastWrapCharIndex = INVALID_INDEX;
lastWrapCharX = 0;
previous.IsValid = false;
previous = 0;
}
currentIndex = nextCharIndex;
@@ -310,7 +308,7 @@ void Font::ProcessText(const StringView& text, Array<FontLineCache>& outputLines
if (tmpLine.LastCharIndex >= tmpLine.FirstCharIndex || text[textLength - 1] == '\n')
{
// Add line
tmpLine.Size.X = cursorX;
tmpLine.Size.X = (float)cursorX * scale;
tmpLine.Size.Y = baseLinesDistance;
tmpLine.LastCharIndex = textLength;
outputLines.Add(tmpLine);
@@ -361,7 +359,7 @@ Float2 Font::MeasureText(const StringView& text, const TextLayoutOptions& layout
// Process text
Array<FontLineCache> lines;
Array<FontCharacterEntry> characterEntries;
Array<float> xAdvances;
Array<int32> xAdvances;
ProcessText(text, lines, layout, characterEntries, xAdvances);
// Calculate bounds
@@ -384,7 +382,7 @@ int32 Font::HitTestText(const StringView& text, const Float2& location, const Te
// Process text
Array<FontLineCache> lines;
Array<FontCharacterEntry> characterEntries;
Array<float> xAdvances;
Array<int32> xAdvances;
ProcessText(text, lines, layout, characterEntries, xAdvances);
ASSERT(lines.HasItems());
float scale = layout.Scale / FontManager::FontScale;
@@ -460,7 +458,7 @@ Float2 Font::GetCharPosition(const StringView& text, int32 index, const TextLayo
// Process text
Array<FontLineCache> lines;
Array<FontCharacterEntry> characterEntries;
Array<float> xAdvances;
Array<int32> xAdvances;
ProcessText(text, lines, layout, characterEntries, xAdvances);
ASSERT(lines.HasItems());
float scale = layout.Scale / FontManager::FontScale;

6
Source/Engine/Render2D/Font.h
View File

@@ -350,7 +350,7 @@ public:
/// <param name="text">The input text.</param>
/// <param name="layout">The layout properties.</param>
/// <param name="outputLines">The output lines list.</param>
void ProcessText(const StringView& text, Array<FontLineCache>& outputLines, API_PARAM(Ref) const TextLayoutOptions& layout, Array<FontCharacterEntry>& characterEntries, Array<float>& characterKernings);
void ProcessText(const StringView& text, Array<FontLineCache>& outputLines, API_PARAM(Ref) const TextLayoutOptions& layout, Array<FontCharacterEntry>& characterEntries, Array<int32>& characterKernings);
/// <summary>
/// Processes text to get cached lines for rendering.
@@ -362,7 +362,7 @@ public:
{
Array<FontLineCache> lines;
Array<FontCharacterEntry> characterEntries;
Array<float> xAdvances;
Array<int32> xAdvances;
ProcessText(text, lines, layout, characterEntries, xAdvances);
return lines;
}
@@ -378,7 +378,7 @@ public:
{
Array<FontLineCache> lines;
Array<FontCharacterEntry> characterEntries;
Array<float> xAdvances;
Array<int32> xAdvances;
ProcessText(textRange.Substring(text), lines, layout, characterEntries, xAdvances);
return lines;
}

4
Source/Engine/Render2D/Render2D.cpp
View File

@@ -1357,7 +1357,7 @@ void Render2D::DrawText(Font* font, const StringView& text, const Color& color,
// Process text to get lines
Lines.Clear();
static Array<FontCharacterEntry> characterEntries(128);
static Array<float> characterKernings(128);
static Array<int32> characterKernings(128);
characterEntries.Clear();
characterKernings.Clear();
@@ -1409,7 +1409,7 @@ void Render2D::DrawText(Font* font, const StringView& text, const Color& color,
}
pointer.X += (float)kerning * scale;*/
pointer.X += kerning;
pointer.X += kerning * scale;
previous = entry;
// Omit whitespace characters

2
Source/Engine/UI/TextRender.cpp
View File

@@ -159,7 +159,7 @@ void TextRender::UpdateLayout()
// Perform layout
Array<FontLineCache> lines;
Array<FontCharacterEntry> characterEntries;
Array<float> xAdvances;
Array<int32> xAdvances;
font->ProcessText(text, lines, _layoutOptions, characterEntries, xAdvances);
// Prepare buffers capacity