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# ifndef APP_DRAW_H
# define APP_DRAW_H
# include <appGuiBase.h>
# include <utilPropMask.h>
# include <appGeo.h>
# include <docFont.h>
# include <psFont.h>
# include <bmcolor.h>
/************************************************************************/
/* */
/* An attempt to consistently use the same formula to convert from */
/* twips to pixels. */
/* */
/************************************************************************/
# define TWIPStoPIXELS(xmag,t) ((xmag)*(t))
# define PIXELStoTWIPS(p,xmag) ((p)/(xmag))
/************************************************************************/
/* */
/* An attempt to define a more or less device independent graphics */
/* interface. */
/* */
/* Where appropriate, concepts are borrowed from the PDF file format. */
/* */
/* The unit of the coordinates is dependent on the instance. For the */
/* PostScript and PDF instances of the library it is the 'twip': One */
/* twentieth part of a point. For the raw X11 and GTK instances it is */
/* the pixel. */
/* It is upto the user to do the necessary coordinate transforms. The */
/* library tries to provide the necessary commodity functions. */
/* */
/************************************************************************/
/************************************************************************/
/* */
/* For the administration of the relation between PostScript fonts and */
/* X11 fonts. */
/* */
/************************************************************************/
typedef struct AppPhysicalFont
{
TextAttribute apfAttribute;
int apfDocFamilyNumber;
int apfFontEncoding;
int apfPsFamilyNumber;
int apfPsFaceNumber;
APP_FONT * apfFontStruct;
unsigned long apfUnderLinePositionPixels;
unsigned long apfUnderlineThicknessPixels;
int apfAscentPixels;
int apfDescentPixels;
int apfFullSizePixels;
unsigned long apfXHeightPixels;
} AppPhysicalFont;
typedef struct AppPhysicalFontList
{
const char * apflAfmDirectory;
const char * apflGhostscriptFontmap;
const char * apflGhostscriptFontToXmapping;
int apflCount;
AppPhysicalFont * apflFonts;
} AppPhysicalFontList;
typedef struct AppDrawingData
{
int addForScreenDrawing;
DocumentRectangle addBackRect;
DocumentRectangle addPaperRect;
DocumentRectangle addDocRect;
int addBottomMarginPixels;
int addPageGapPixels;
int addPageStepPixels;
double addMagnification;
double addMagnifiedPixelsPerTwip;
double addScreenPixelsPerMM;
AppPhysicalFontList addPhysicalFontList;
APP_COLOR_RGB addForeColor;
APP_COLOR_RGB addBackColor;
APP_COLOR_RGB addTopColor;
APP_COLOR_RGB addBottomColor;
# ifdef USE_MOTIF
Display * addDisplay;
int addScreen;
Drawable addDrawable;
GC addGc;
# endif
# ifdef USE_GTK
GdkWindow * addDrawable;
GdkGC * addGc;
GdkFont * addCurrentFont;
GdkColormap * addColorMap;
# endif
} AppDrawingData;
typedef struct VerticalCharacter
{
APP_BITMAP_IMAGE vcPixmap;
int vcWidth;
} VerticalCharacter;
typedef struct VerticalXFont
{
APP_GC vxfScratchBitmapGc;
APP_GC vxfPixmapGc;
APP_FONT * vxfFontStruct;
APP_BITMAP_IMAGE vxfScratchBitmap;
int vxfDirection;
VerticalCharacter vxfCharacters[256];
} VerticalXFont;
/************************************************************************/
/* */
/* Administration on colors. */
/* */
/************************************************************************/
typedef struct AppColors
{
ColorAllocator acAllocator;
# ifdef USE_MOTIF
Display * acDisplay;
Colormap acColormap;
int acVisualClass;
# endif
# ifdef USE_GTK
GdkColormap * acColormap;
int acVisualClass;
# endif
} AppColors;
/************************************************************************/
/* */
/* Procedure declarations. */
/* */
/************************************************************************/
# ifdef USE_GTK
extern void appDrawGtkSetXFillRule( GdkGC * gc,
int rule );
# endif
extern void appCollectExposures( DocumentRectangle * drClip,
AppDrawingData * add,
int ox,
int oy,
APP_EVENT * event );
extern void appInitDrawingData( AppDrawingData * add );
extern void appCleanDrawingData( AppDrawingData * add );
extern void appInitFontList( AppPhysicalFontList * apfl );
extern void appCleanFontList( AppDrawingData * add,
AppPhysicalFontList * apfl );
extern int appFontCatalog( AppDrawingData * add,
AppFontFamily ** pFamilies,
int * pCount );
extern void appFontFormatCurrent( char * target,
AppFontFamily * aff,
AppFontTypeface * aft,
int size );
extern int appOpenDocumentFont( AppDrawingData * add,
const DocumentFontList * dfl,
TextAttribute ta );
extern void appFontAttributeString( char * target,
const char * familyName,
const PropertyMask * updMask,
TextAttribute taNew );
extern int appFontXFont( char * target,
AppDrawingData * add,
const AppFontFamily * aff,
int encoding,
AppFontTypeface * aft,
int twipsSize,
int variant );
extern int appCharExistsInFont( const APP_FONT * xfs,
int ch );
extern int appFontGetAttributes( char * attributeString,
char ** pFamilyName,
PropertyMask * pUpdMask,
TextAttribute * pTaNew );
extern void appInitVerticalXFont( VerticalXFont * vxf );
extern void appCleanVerticalXFont( VerticalXFont * vxf,
AppDrawingData * add );
extern int appOpenVerticalXFont( VerticalXFont * vxf,
AppDrawingData * add,
const char * name,
int direction,
APP_COLOR_RGB * background );
extern int appDrawVerticalString( VerticalXFont * vxf,
AppDrawingData * add,
int x,
int y,
char * string,
int length );
extern void appSetDrawingEnvironment(
AppDrawingData * add,
double magnification,
double xfac,
double screenPixPerMM,
const char * afmDirectory,
const char * apflGhostscriptFontmap,
const char * ghostscriptFontToXmapping,
APP_WIDGET appWidget );
extern void appExposeRectangle( const AppDrawingData * add,
int x,
int y,
int wide,
int high );
extern int appDrawBlackColor( AppDrawingData * add,
APP_COLOR_RGB * xc );
extern int appDrawWhiteColor( AppDrawingData * add,
APP_COLOR_RGB * xc );
extern void appDrawSetForegroundBlack( AppDrawingData * add );
extern void appDrawSetForegroundWhite( AppDrawingData * add );
extern void appDrawSetBackgroundWhite( AppDrawingData * add );
extern void appDrawSetForegroundColor( AppDrawingData * add,
APP_COLOR_RGB * xc );
extern void appDrawSetBackgroundColor( AppDrawingData * add,
APP_COLOR_RGB * xc );
extern void appDrawFillRectangle( AppDrawingData * add,
int x,
int y,
int wide,
int high );
extern void appDrawDrawRectangle( AppDrawingData * add,
int x,
int y,
int wide,
int high );
extern int appSetDrawingDataForWidget( APP_WIDGET w,
double magnification,
AppDrawingData * add );
extern void appCloneDrawingEnvironment( AppDrawingData * add,
const AppDrawingData * parent_add,
double magnification,
double xfac,
APP_WINDOW drawable );
extern APP_FONT * appDrawOpenFont( AppDrawingData * add,
const char * name );
extern void appDrawSetFont( AppDrawingData * add,
APP_FONT * xfs );
extern void appDrawDrawString( AppDrawingData * add,
int x,
int y,
const char * s,
int len );
extern void appDrawDrawLine( AppDrawingData * add,
int x0,
int y0,
int x1,
int y1 );
extern void appDrawMoveArea( AppDrawingData * add,
int src_x,
int src_y,
int wide,
int high,
int dest_x,
int dest_y );
extern void appDrawFreeFont( AppDrawingData * add,
APP_FONT * font );
extern void appDrawNoClipping( AppDrawingData * add );
extern void appDrawSetClipRect( AppDrawingData * add,
const DocumentRectangle * drClip );
extern void appDrawTextExtents( int * pWidth,
int * pFontAscent,
int * pFontDescent,
const AppDrawingData * add,
APP_FONT * xfs,
const char * s,
int l );
extern void appDrawFreePixmap( AppDrawingData * add,
APP_BITMAP_IMAGE pixmap );
extern void appDrawFillPolygon( AppDrawingData * add,
APP_POINT * points,
int count );
extern void appDrawDrawLines( AppDrawingData * add,
APP_POINT * points,
int count );
extern int appDrawGetSizeOfWidget( int * pWide,
int * pHigh,
APP_WIDGET w );
extern int appDrawGetSizeFromConfigureEvent( int * pWide,
int * pHigh,
APP_WIDGET w,
APP_EVENT * event );
extern void appDrawDrawPixmap( AppDrawingData * add,
APP_BITMAP_IMAGE pixmap,
int xSrc,
int ySrc,
int wide,
int high,
int xDest,
int yDest );
extern int appGetCoordinatesFromMouseButtonEvent( int * pX,
int * pY,
int * pButton,
int * pUpDown,
int * pSeq,
unsigned int * pKeyState,
APP_WIDGET w,
APP_EVENT * event );
extern int appGetCoordinatesFromMouseMoveEvent( int * pX,
int * pY,
APP_WIDGET w,
APP_EVENT * event );
extern void appInitColors( AppColors * ac );
APP_BITMAP_MASK appMakeBitmap( AppDrawingData * add,
int wide,
int high );
extern int appAllocateColors( AppDrawingData * add,
AppColors * ac );
extern void appCleanColors( AppColors * ac );
extern int appColorRgb( APP_COLOR_RGB * xc,
AppColors * ac,
unsigned int r,
unsigned int g,
unsigned int b );
extern int appColorFindRgb( APP_COLOR_RGB * xc,
AppColors * ac,
unsigned int r,
unsigned int g,
unsigned int b );
extern int appColorNamed( APP_COLOR_RGB * xc,
AppColors * ac,
const char * name );
extern void appDrawDrawSegments( AppDrawingData * add,
APP_SEGMENT * segments,
int count );
extern void appDrawDrawArc( AppDrawingData * add,
int x,
int y,
int wide,
int high,
int angle1,
int angle2 );
extern void appDrawFillArc( AppDrawingData * add,
int x,
int y,
int wide,
int high,
int angle1,
int angle2 );
extern void appDrawSetRedrawHandler( APP_WIDGET w,
APP_EVENT_HANDLER handler,
void * through );
extern void appDrawSetConfigureHandler( APP_WIDGET w,
APP_EVENT_HANDLER handler,
void * through );
extern void appDrawSetButtonPressHandler( APP_WIDGET w,
APP_EVENT_HANDLER handler,
void * through );
extern void appDrawSetKeyboardHandler( APP_WIDGET w,
APP_EVENT_HANDLER handler,
void * through );
extern int appDrawGetInoutFromFocusEvent( int * pInOut,
APP_WIDGET w,
APP_EVENT * event );
extern APP_BITMAP_IMAGE appMakePixmap( AppDrawingData * add,
int wide,
int high );
# endif
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