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Adding DrawTextStyled and DrawTextStyledEx to draw styled texts

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SultansOfCode 2025-03-06 20:28:58 -03:00
parent f1385f3aec
commit 7d2fa7eb8f
2 changed files with 139 additions and 0 deletions
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2
src/raylib.h
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@ -1479,6 +1479,8 @@ RLAPI void DrawFPS(int posX, int posY);
RLAPI void DrawText(const char *text, int posX, int posY, int fontSize, Color color); // Draw text (using default font)
RLAPI void DrawTextEx(Font font, const char *text, Vector2 position, float fontSize, float spacing, Color tint); // Draw text using font and additional parameters
RLAPI void DrawTextPro(Font font, const char *text, Vector2 position, Vector2 origin, float rotation, float fontSize, float spacing, Color tint); // Draw text using Font and pro parameters (rotation)
RLAPI void DrawTextStyled(const char *text, int posX, int posY, int fontSize, const Color *colors, int colorCount); // Draw styled text (using default font)
RLAPI void DrawTextStyledEx(Font font, const char *text, Vector2 position, float fontSize, float spacing, const Color *colors, int colorCount); // Draw styled text using font and additional parameters
RLAPI void DrawTextCodepoint(Font font, int codepoint, Vector2 position, float fontSize, Color tint); // Draw one character (codepoint)
RLAPI void DrawTextCodepoints(Font font, const int *codepoints, int codepointCount, Vector2 position, float fontSize, float spacing, Color tint); // Draw multiple character (codepoint)

137
src/rtext.c
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@ -1202,6 +1202,143 @@ void DrawTextPro(Font font, const char *text, Vector2 position, Vector2 origin,
rlPopMatrix();
}
// Draw styled text
void DrawTextStyled(const char *text, int posX, int posY, int fontSize, const Color *colors, int colorCount)
{
if (GetFontDefault().texture.id != 0)
{
Vector2 position = { (float)posX, (float)posY };
int defaultFontSize = 10;
if (fontSize < defaultFontSize) fontSize = defaultFontSize;
int spacing = fontSize/defaultFontSize;
DrawTextStyledEx(GetFontDefault(), text, position, (float)fontSize, (float)spacing, colors, colorCount);
}
}
// Draw styled text using Font
void DrawTextStyledEx(Font font, const char *text, Vector2 position, float fontSize, float spacing, const Color *colors, int colorCount)
{
if (font.texture.id == 0) font = GetFontDefault();
int size = TextLength(text);
Color defaultForeground = colorCount > 0 ? colors[0] : BLACK;
Color defaultBackground = { 0, 0, 0, 0 };
Color foreground = defaultForeground;
Color background = defaultBackground;
float textOffsetY = 0.0f;
float textOffsetX = 0.0f;
float scaleFactor = fontSize/font.baseSize;
for (int i = 0; i < size;)
{
int codepointByteCount = 0;
int codepoint = GetCodepointNext(&text[i], &codepointByteCount);
if (codepoint == '\n')
{
textOffsetY += (fontSize + textLineSpacing);
textOffsetX = 0.0f;
}
else
{
if (codepoint == '\3') {
char colorBuffer[16] = { 0 };
int colorBufferIndex = 0;
i += codepointByteCount;
codepoint = GetCodepointNext(&text[i], &codepointByteCount);
while (codepoint >= '0' && codepoint <= '9' && i < size && colorBufferIndex < sizeof(colorBuffer) - 1) {
colorBuffer[colorBufferIndex++] = codepoint;
i += codepointByteCount;
codepoint = GetCodepointNext(&text[i], &codepointByteCount);
}
int colorIndex = atoi(&colorBuffer);
foreground = colorIndex < colorCount ? colors[colorIndex] : defaultForeground;
if (codepoint == ',' && i + codepointByteCount < size) {
int nextCodepointByteCount = 0;
int nextI = i + codepointByteCount;
int nextCodepoint = GetCodepointNext(&text[nextI], &nextCodepointByteCount);
if (nextCodepoint >= '0' && nextCodepoint <= '9') {
memset(colorBuffer, 0, sizeof(colorBuffer));
colorBufferIndex = 0;
i += codepointByteCount;
codepoint = GetCodepointNext(&text[i], &codepointByteCount);
while (codepoint >= '0' && codepoint <= '9' && i < size && colorBufferIndex < sizeof(colorBuffer) - 1) {
colorBuffer[colorBufferIndex++] = codepoint;
i += codepointByteCount;
codepoint = GetCodepointNext(&text[i], &codepointByteCount);
}
colorIndex = atoi(&colorBuffer);
background = colorIndex < colorCount ? colors[colorIndex] : defaultBackground;
}
}
}
else if (codepoint == '\15') {
foreground = defaultForeground;
background = defaultBackground;
i += codepointByteCount;
codepoint = GetCodepointNext(&text[i], &codepointByteCount);
}
else if (codepoint == '\22') {
Color temp = foreground;
foreground = background;
background = temp;
i += codepointByteCount;
codepoint = GetCodepointNext(&text[i], &codepointByteCount);
}
if (i >= size) break;
int index = GetGlyphIndex(font, codepoint);
float increaseX = 0.0f;
if (font.glyphs[index].advanceX == 0) increaseX = ((float)font.recs[index].width*scaleFactor + spacing);
else increaseX += ((float)font.glyphs[index].advanceX*scaleFactor + spacing);
if (background.a > 0)
{
DrawRectangle(position.x + textOffsetX, position.y + textOffsetY, increaseX, fontSize + textLineSpacing, background);
}
if ((codepoint != ' ') && (codepoint != '\t'))
{
DrawTextCodepoint(font, codepoint, (Vector2){ position.x + textOffsetX, position.y + textOffsetY }, fontSize, foreground);
}
textOffsetX += increaseX;
}
i += codepointByteCount;
}
}
// Draw one character (codepoint)
void DrawTextCodepoint(Font font, int codepoint, Vector2 position, float fontSize, Color tint)
{