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Centralize Text

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Added two methods into rtext.c -
CentralizeText (for default font),
CentralizeTextEx (for specific font).
Used the same logic as in "MeasureText" method:
In "CentralizeText" method check if the default font has been loaded, if it doesn't - return the zero vector.
if it does - modify the fontSize, calculate the spacing, and then call to "CentralizeTextEx" method that will calculate the desired textPosition.
Added the methods declarations into raylib.h
This commit is contained in:
Nir Cohen Hershkovitz 2024-12-20 15:51:18 +02:00
parent 0212ed0a4b
commit 90a73b5504
2 changed files with 32 additions and 0 deletions
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2
src/raylib.h
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@ -1485,7 +1485,9 @@ RLAPI void DrawTextCodepoints(Font font, const int *codepoints, int codepointCou
// Text font info functions
RLAPI void SetTextLineSpacing(int spacing); // Set vertical line spacing when drawing with line-breaks
RLAPI int MeasureText(const char *text, int fontSize); // Measure string width for default font
RLAPI Vector2 CentralizeText(const char *text, int fontSize, Vector2 anchorPosition, Vector2 areaSize); // Gives you the position (Vector2) for your text so it will be Centered in specific area for default font
RLAPI Vector2 MeasureTextEx(Font font, const char *text, float fontSize, float spacing); // Measure string size for Font
RLAPI Vector2 CentralizeTextEx(Font font, const char *text, float fontSize, float spacing, Vector2 anchorPosition, Vector2 areaSize); // Gives you the position (Vector2) for your text so it will be Centered in specific area for Font
RLAPI int GetGlyphIndex(Font font, int codepoint); // Get glyph index position in font for a codepoint (unicode character), fallback to '?' if not found
RLAPI GlyphInfo GetGlyphInfo(Font font, int codepoint); // Get glyph font info data for a codepoint (unicode character), fallback to '?' if not found
RLAPI Rectangle GetGlyphAtlasRec(Font font, int codepoint); // Get glyph rectangle in font atlas for a codepoint (unicode character), fallback to '?' if not found

30
src/rtext.c
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@ -1277,6 +1277,24 @@ int MeasureText(const char *text, int fontSize)
return (int)textSize.x;
}
// Gives you the position (Vector2) for your text so it will be Centered in specific area for default font
Vector2 CentralizeText(const char *text, int fontSize, Vector2 anchorPosition, Vector2 areaSize)
{
Vector2 textPosition = { 0.0f, 0.0f };
// Check if default font has been loaded
if (GetFontDefault().texture.id != 0)
{
int defaultFontSize = 10; // Default Font chars height in pixel
if (fontSize < defaultFontSize) fontSize = defaultFontSize;
int spacing = fontSize/defaultFontSize;
textPosition = CentralizeTextEx(GetFontDefault(), text, (float)fontSize, (float)spacing, anchorPosition, areaSize);
}
return textPosition;
}
// Measure string size for Font
Vector2 MeasureTextEx(Font font, const char *text, float fontSize, float spacing)
{
@ -1334,6 +1352,18 @@ Vector2 MeasureTextEx(Font font, const char *text, float fontSize, float spacing
return textSize;
}
// Gives you the position (Vector2) for your text so it will be Centered in specific area for Font
Vector2 CentralizeTextEx(Font font, const char *text, float fontSize, float spacing, Vector2 anchorPosition, Vector2 areaSize)
{
Vector2 textPosition = { 0 };
Vector2 textSize = MeasureTextEx(font, text, fontSize, spacing);
textPosition.x = anchorPosition.x + ((areaSize.x - textSize.x) / 2.0f);
textPosition.y = anchorPosition.y + ((areaSize.y - textSize.y) / 2.0f);
return textPosition;
}
// Get index position for a unicode character on font
// NOTE: If codepoint is not found in the font it fallbacks to '?'
int GetGlyphIndex(Font font, int codepoint)