/*
 * Smithsonian Astrophysical Observatory, Cambridge, MA, USA
 * This code has been modified under the terms listed below and is made
 * available under the same terms.
 */

/*
 *	Copyright 1993-2004 George A Howlett.
 *
 *	Permission is hereby granted, free of charge, to any person obtaining
 *	a copy of this software and associated documentation files (the
 *	"Software"), to deal in the Software without restriction, including
 *	without limitation the rights to use, copy, modify, merge, publish,
 *	distribute, sublicense, and/or sell copies of the Software, and to
 *	permit persons to whom the Software is furnished to do so, subject to
 *	the following conditions:
 *
 *	The above copyright notice and this permission notice shall be
 *	included in all copies or substantial portions of the Software.
 *
 *	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *	NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 *	LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 *	OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 *	WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef _BLT_TEXT_H
#define _BLT_TEXT_H

#define UPDATE_GC	1

typedef struct {
    unsigned int state;			/* If non-zero, indicates to draw text
					 * in the active color */
    XColor* color;			/* Color to draw the text. */
    Tk_Font font;			/* Font to use to draw text */
    double angle;			/* Rotation of text in degrees. */
    Tk_Justify justify;			/* Justification of the text
					 * string. This only matters if the
					 * text is composed of multiple
					 * lines. */
    Tk_Anchor anchor;			/* Indicates how the text is anchored
					 * around its x,y coordinates. */
    int xPad, yPad;			/* # pixels padding of around text
					 * region. */
    unsigned short int leader;		/* # pixels spacing between lines of
					 * text. */
    short int underline;		/* Index of character to be underlined,
					 * -1 if no underline. */
    int maxLength;			/* Maximum length in pixels of text */
    /* Private fields. */
    unsigned short flags;
    GC gc;			/* GC used to draw the text */
} TextStyle;

extern void Blt_GetTextExtents(Tk_Font font, int leader, const char *text, 
	int textLen, unsigned int *widthPtr, unsigned int *heightPtr);

extern void Blt_Ts_GetExtents(TextStyle *tsPtr, const char *text, 
	unsigned int *widthPtr, unsigned int *heightPtr);

extern void Blt_Ts_ResetStyle(Tk_Window tkwin, TextStyle *tsPtr);

extern void Blt_Ts_FreeStyle(Display *display, TextStyle *tsPtr);

extern void Blt_DrawText(Tk_Window tkwin, Drawable drawable, 
	const char *string, TextStyle *tsPtr, int x, int y);

extern void Blt_DrawText2(Tk_Window tkwin, Drawable drawable, 
	const char *string, TextStyle *tsPtr, int x, int y, Dim2D * dimPtr);

extern void Blt_Ts_DrawText(Tk_Window tkwin, Drawable drawable, 
	const char *text, int textLen, TextStyle *tsPtr, int x, int y);

#define Blt_Ts_InitStyle(ts)		\
    ((ts).anchor = TK_ANCHOR_NW,	\
     (ts).color = (XColor*)NULL,	\
     (ts).font = NULL,			\
     (ts).justify = TK_JUSTIFY_LEFT,	\
     (ts).leader = 0,			\
     (ts).underline = -1,		       \
     (ts).xPad = 0,    \
     (ts).yPad = 0,    \
     (ts).state = 0,			       \
     (ts).flags = 0,			       \
     (ts).gc = NULL,			       \
     (ts).maxLength = -1,		       \
     (ts).angle = 0.0)

#endif