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@ -15,14 +15,12 @@ |
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/* */ |
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/***************************************************************************/ |
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/*************************************************************************/ |
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/* */ |
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/* This component has a _single_ role: to compute exact outline bounding */ |
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/* boxes. */ |
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/* */ |
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/* It is separated from the rest of the engine for various technical */ |
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/* reasons. It may well be integrated in `ftoutln' later. */ |
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/* */ |
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/*************************************************************************/ |
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@ -30,6 +28,7 @@ |
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#include <freetype/ftimage.h> |
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#include <freetype/ftoutln.h> |
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typedef struct TBBox_Rec_ |
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{ |
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FT_Vector last; |
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@ -45,8 +44,8 @@ |
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/* */ |
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/* <Description> */ |
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/* This function is used as a `move_to' and `line_to' emitter during */ |
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/* FT_Outline_Decompose. It simply records the destination point in */ |
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/* `user->last'. */ |
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/* FT_Outline_Decompose(). It simply records the destination point */ |
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/* in `user->last'. */ |
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/* */ |
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/* <Input> */ |
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/* to :: A pointer to the destination vector. */ |
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@ -55,7 +54,7 @@ |
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/* user :: A pointer to the current walk context. */ |
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/* */ |
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/* <Return> */ |
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/* Error code. 0 means success. */ |
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/* Always 0. Needed for the interface only. */ |
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/* */ |
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static |
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int BBox_Move_To( FT_Vector* to, |
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@ -151,7 +150,7 @@ |
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/* user :: The address of the current walk context. */ |
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/* */ |
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/* <Return> */ |
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/* Error code. 0 means success. */ |
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/* Always 0. Needed for the interface only. */ |
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/* */ |
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/* <Note> */ |
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/* In the case of a non-monotonous arc, we compute directly the */ |
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@ -273,7 +272,7 @@ |
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Suite: |
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; |
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} while (arc >= stack); |
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} while ( arc >= stack ); |
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} |
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@ -297,7 +296,7 @@ |
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/* user :: The address of the current walk context. */ |
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/* */ |
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/* <Return> */ |
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/* Error code. 0 means success. */ |
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/* Always 0. Needed for the interface only. */ |
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/* */ |
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/* <Note> */ |
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/* In the case of a non-monotonous arc, we don't compute directly */ |
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@ -354,21 +353,24 @@ |
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/* abbox :: A pointer to the outline's exact bounding box. */ |
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/* */ |
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/* <Return> */ |
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/* Error code. 0 means success. */ |
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/* FreeType error code. 0 means success. */ |
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/* */ |
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FT_EXPORT_FUNC( FT_Error ) FT_Outline_Get_BBox( FT_Outline* outline, |
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FT_BBox* abbox ) |
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{ |
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FT_BBox cbox; |
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FT_BBox bbox; |
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FT_Vector* vec; |
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FT_UShort n; |
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FT_BBox cbox; |
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FT_BBox bbox; |
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FT_Vector* vec; |
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FT_UShort n; |
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/* if outline is empty, return (0,0,0,0) */ |
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if ( !abbox ) |
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return FT_Err_Invalid_Argument; |
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if ( !outline ) |
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return FT_Err_Invalid_Outline; |
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/* if outline is empty, return (0,0,0,0) */ |
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if ( outline->n_points == 0 || outline->n_contours <= 0 ) |
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{ |
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abbox->xMin = abbox->xMax = 0; |
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Werner Lemberg
25 years ago