1 |
/* $Header$ */ |
/* $Header$ */ |
2 |
|
|
3 |
/* |
/* |
4 |
* tkCanvas.h -- |
* tkCanvas.h -- |
5 |
* |
* |
6 |
* Declarations shared among all the files that implement |
* Declarations shared among all the files that implement |
7 |
* canvas widgets. |
* canvas widgets. |
8 |
* |
* |
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* Copyright (c) 1991-1994 The Regents of the University of California. |
* Copyright (c) 1991-1994 The Regents of the University of California. |
10 |
* Copyright (c) 1994-1995 Sun Microsystems, Inc. |
* Copyright (c) 1994-1995 Sun Microsystems, Inc. |
11 |
* Copyright (c) 1998 by Scriptics Corporation. |
* Copyright (c) 1998 by Scriptics Corporation. |
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* |
* |
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* See the file "license.terms" for information on usage and redistribution |
* See the file "license.terms" for information on usage and redistribution |
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* of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
* of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
15 |
* |
* |
16 |
* RCS: @(#) $Id: tkcanvas.h,v 1.1.1.1 2001/06/13 04:56:06 dtashley Exp $ |
* RCS: @(#) $Id: tkcanvas.h,v 1.1.1.1 2001/06/13 04:56:06 dtashley Exp $ |
17 |
*/ |
*/ |
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#ifndef _TKCANVAS |
#ifndef _TKCANVAS |
20 |
#define _TKCANVAS |
#define _TKCANVAS |
21 |
|
|
22 |
#ifndef _TK |
#ifndef _TK |
23 |
#include "tk.h" |
#include "tk.h" |
24 |
#endif |
#endif |
25 |
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|
26 |
#ifndef USE_OLD_TAG_SEARCH |
#ifndef USE_OLD_TAG_SEARCH |
27 |
typedef struct TagSearchExpr_s TagSearchExpr; |
typedef struct TagSearchExpr_s TagSearchExpr; |
28 |
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|
29 |
struct TagSearchExpr_s { |
struct TagSearchExpr_s { |
30 |
TagSearchExpr *next; /* for linked lists of expressions - used in bindings */ |
TagSearchExpr *next; /* for linked lists of expressions - used in bindings */ |
31 |
Tk_Uid uid; /* the uid of the whole expression */ |
Tk_Uid uid; /* the uid of the whole expression */ |
32 |
Tk_Uid *uids; /* expresion compiled to an array of uids */ |
Tk_Uid *uids; /* expresion compiled to an array of uids */ |
33 |
int allocated; /* available space for array of uids */ |
int allocated; /* available space for array of uids */ |
34 |
int length; /* length of expression */ |
int length; /* length of expression */ |
35 |
int index; /* current position in expression evaluation */ |
int index; /* current position in expression evaluation */ |
36 |
int match; /* this expression matches event's item's tags*/ |
int match; /* this expression matches event's item's tags*/ |
37 |
}; |
}; |
38 |
#endif /* not USE_OLD_TAG_SEARCH */ |
#endif /* not USE_OLD_TAG_SEARCH */ |
39 |
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/* |
/* |
41 |
* The record below describes a canvas widget. It is made available |
* The record below describes a canvas widget. It is made available |
42 |
* to the item procedures so they can access certain shared fields such |
* to the item procedures so they can access certain shared fields such |
43 |
* as the overall displacement and scale factor for the canvas. |
* as the overall displacement and scale factor for the canvas. |
44 |
*/ |
*/ |
45 |
|
|
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typedef struct TkCanvas { |
typedef struct TkCanvas { |
47 |
Tk_Window tkwin; /* Window that embodies the canvas. NULL |
Tk_Window tkwin; /* Window that embodies the canvas. NULL |
48 |
* means that the window has been destroyed |
* means that the window has been destroyed |
49 |
* but the data structures haven't yet been |
* but the data structures haven't yet been |
50 |
* cleaned up.*/ |
* cleaned up.*/ |
51 |
Display *display; /* Display containing widget; needed, among |
Display *display; /* Display containing widget; needed, among |
52 |
* other things, to release resources after |
* other things, to release resources after |
53 |
* tkwin has already gone away. */ |
* tkwin has already gone away. */ |
54 |
Tcl_Interp *interp; /* Interpreter associated with canvas. */ |
Tcl_Interp *interp; /* Interpreter associated with canvas. */ |
55 |
Tcl_Command widgetCmd; /* Token for canvas's widget command. */ |
Tcl_Command widgetCmd; /* Token for canvas's widget command. */ |
56 |
Tk_Item *firstItemPtr; /* First in list of all items in canvas, |
Tk_Item *firstItemPtr; /* First in list of all items in canvas, |
57 |
* or NULL if canvas empty. */ |
* or NULL if canvas empty. */ |
58 |
Tk_Item *lastItemPtr; /* Last in list of all items in canvas, |
Tk_Item *lastItemPtr; /* Last in list of all items in canvas, |
59 |
* or NULL if canvas empty. */ |
* or NULL if canvas empty. */ |
60 |
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/* |
/* |
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* Information used when displaying widget: |
* Information used when displaying widget: |
63 |
*/ |
*/ |
64 |
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65 |
int borderWidth; /* Width of 3-D border around window. */ |
int borderWidth; /* Width of 3-D border around window. */ |
66 |
Tk_3DBorder bgBorder; /* Used for canvas background. */ |
Tk_3DBorder bgBorder; /* Used for canvas background. */ |
67 |
int relief; /* Indicates whether window as a whole is |
int relief; /* Indicates whether window as a whole is |
68 |
* raised, sunken, or flat. */ |
* raised, sunken, or flat. */ |
69 |
int highlightWidth; /* Width in pixels of highlight to draw |
int highlightWidth; /* Width in pixels of highlight to draw |
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* around widget when it has the focus. |
* around widget when it has the focus. |
71 |
* <= 0 means don't draw a highlight. */ |
* <= 0 means don't draw a highlight. */ |
72 |
XColor *highlightBgColorPtr; |
XColor *highlightBgColorPtr; |
73 |
/* Color for drawing traversal highlight |
/* Color for drawing traversal highlight |
74 |
* area when highlight is off. */ |
* area when highlight is off. */ |
75 |
XColor *highlightColorPtr; /* Color for drawing traversal highlight. */ |
XColor *highlightColorPtr; /* Color for drawing traversal highlight. */ |
76 |
int inset; /* Total width of all borders, including |
int inset; /* Total width of all borders, including |
77 |
* traversal highlight and 3-D border. |
* traversal highlight and 3-D border. |
78 |
* Indicates how much interior stuff must |
* Indicates how much interior stuff must |
79 |
* be offset from outside edges to leave |
* be offset from outside edges to leave |
80 |
* room for borders. */ |
* room for borders. */ |
81 |
GC pixmapGC; /* Used to copy bits from a pixmap to the |
GC pixmapGC; /* Used to copy bits from a pixmap to the |
82 |
* screen and also to clear the pixmap. */ |
* screen and also to clear the pixmap. */ |
83 |
int width, height; /* Dimensions to request for canvas window, |
int width, height; /* Dimensions to request for canvas window, |
84 |
* specified in pixels. */ |
* specified in pixels. */ |
85 |
int redrawX1, redrawY1; /* Upper left corner of area to redraw, |
int redrawX1, redrawY1; /* Upper left corner of area to redraw, |
86 |
* in pixel coordinates. Border pixels |
* in pixel coordinates. Border pixels |
87 |
* are included. Only valid if |
* are included. Only valid if |
88 |
* REDRAW_PENDING flag is set. */ |
* REDRAW_PENDING flag is set. */ |
89 |
int redrawX2, redrawY2; /* Lower right corner of area to redraw, |
int redrawX2, redrawY2; /* Lower right corner of area to redraw, |
90 |
* in integer canvas coordinates. Border |
* in integer canvas coordinates. Border |
91 |
* pixels will *not* be redrawn. */ |
* pixels will *not* be redrawn. */ |
92 |
int confine; /* Non-zero means constrain view to keep |
int confine; /* Non-zero means constrain view to keep |
93 |
* as much of canvas visible as possible. */ |
* as much of canvas visible as possible. */ |
94 |
|
|
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/* |
/* |
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* Information used to manage the selection and insertion cursor: |
* Information used to manage the selection and insertion cursor: |
97 |
*/ |
*/ |
98 |
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|
99 |
Tk_CanvasTextInfo textInfo; /* Contains lots of fields; see tk.h for |
Tk_CanvasTextInfo textInfo; /* Contains lots of fields; see tk.h for |
100 |
* details. This structure is shared with |
* details. This structure is shared with |
101 |
* the code that implements individual items. */ |
* the code that implements individual items. */ |
102 |
int insertOnTime; /* Number of milliseconds cursor should spend |
int insertOnTime; /* Number of milliseconds cursor should spend |
103 |
* in "on" state for each blink. */ |
* in "on" state for each blink. */ |
104 |
int insertOffTime; /* Number of milliseconds cursor should spend |
int insertOffTime; /* Number of milliseconds cursor should spend |
105 |
* in "off" state for each blink. */ |
* in "off" state for each blink. */ |
106 |
Tcl_TimerToken insertBlinkHandler; |
Tcl_TimerToken insertBlinkHandler; |
107 |
/* Timer handler used to blink cursor on and |
/* Timer handler used to blink cursor on and |
108 |
* off. */ |
* off. */ |
109 |
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|
110 |
/* |
/* |
111 |
* Transformation applied to canvas as a whole: to compute screen |
* Transformation applied to canvas as a whole: to compute screen |
112 |
* coordinates (X,Y) from canvas coordinates (x,y), do the following: |
* coordinates (X,Y) from canvas coordinates (x,y), do the following: |
113 |
* |
* |
114 |
* X = x - xOrigin; |
* X = x - xOrigin; |
115 |
* Y = y - yOrigin; |
* Y = y - yOrigin; |
116 |
*/ |
*/ |
117 |
|
|
118 |
int xOrigin, yOrigin; /* Canvas coordinates corresponding to |
int xOrigin, yOrigin; /* Canvas coordinates corresponding to |
119 |
* upper-left corner of window, given in |
* upper-left corner of window, given in |
120 |
* canvas pixel units. */ |
* canvas pixel units. */ |
121 |
int drawableXOrigin, drawableYOrigin; |
int drawableXOrigin, drawableYOrigin; |
122 |
/* During redisplay, these fields give the |
/* During redisplay, these fields give the |
123 |
* canvas coordinates corresponding to |
* canvas coordinates corresponding to |
124 |
* the upper-left corner of the drawable |
* the upper-left corner of the drawable |
125 |
* where items are actually being drawn |
* where items are actually being drawn |
126 |
* (typically a pixmap smaller than the |
* (typically a pixmap smaller than the |
127 |
* whole window). */ |
* whole window). */ |
128 |
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129 |
/* |
/* |
130 |
* Information used for event bindings associated with items. |
* Information used for event bindings associated with items. |
131 |
*/ |
*/ |
132 |
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Tk_BindingTable bindingTable; |
Tk_BindingTable bindingTable; |
134 |
/* Table of all bindings currently defined |
/* Table of all bindings currently defined |
135 |
* for this canvas. NULL means that no |
* for this canvas. NULL means that no |
136 |
* bindings exist, so the table hasn't been |
* bindings exist, so the table hasn't been |
137 |
* created. Each "object" used for this |
* created. Each "object" used for this |
138 |
* table is either a Tk_Uid for a tag or |
* table is either a Tk_Uid for a tag or |
139 |
* the address of an item named by id. */ |
* the address of an item named by id. */ |
140 |
Tk_Item *currentItemPtr; /* The item currently containing the mouse |
Tk_Item *currentItemPtr; /* The item currently containing the mouse |
141 |
* pointer, or NULL if none. */ |
* pointer, or NULL if none. */ |
142 |
Tk_Item *newCurrentPtr; /* The item that is about to become the |
Tk_Item *newCurrentPtr; /* The item that is about to become the |
143 |
* current one, or NULL. This field is |
* current one, or NULL. This field is |
144 |
* used to detect deletions of the new |
* used to detect deletions of the new |
145 |
* current item pointer that occur during |
* current item pointer that occur during |
146 |
* Leave processing of the previous current |
* Leave processing of the previous current |
147 |
* item. */ |
* item. */ |
148 |
double closeEnough; /* The mouse is assumed to be inside an |
double closeEnough; /* The mouse is assumed to be inside an |
149 |
* item if it is this close to it. */ |
* item if it is this close to it. */ |
150 |
XEvent pickEvent; /* The event upon which the current choice |
XEvent pickEvent; /* The event upon which the current choice |
151 |
* of currentItem is based. Must be saved |
* of currentItem is based. Must be saved |
152 |
* so that if the currentItem is deleted, |
* so that if the currentItem is deleted, |
153 |
* can pick another. */ |
* can pick another. */ |
154 |
int state; /* Last known modifier state. Used to |
int state; /* Last known modifier state. Used to |
155 |
* defer picking a new current object |
* defer picking a new current object |
156 |
* while buttons are down. */ |
* while buttons are down. */ |
157 |
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|
158 |
/* |
/* |
159 |
* Information used for managing scrollbars: |
* Information used for managing scrollbars: |
160 |
*/ |
*/ |
161 |
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|
162 |
char *xScrollCmd; /* Command prefix for communicating with |
char *xScrollCmd; /* Command prefix for communicating with |
163 |
* horizontal scrollbar. NULL means no |
* horizontal scrollbar. NULL means no |
164 |
* horizontal scrollbar. Malloc'ed*/ |
* horizontal scrollbar. Malloc'ed*/ |
165 |
char *yScrollCmd; /* Command prefix for communicating with |
char *yScrollCmd; /* Command prefix for communicating with |
166 |
* vertical scrollbar. NULL means no |
* vertical scrollbar. NULL means no |
167 |
* vertical scrollbar. Malloc'ed*/ |
* vertical scrollbar. Malloc'ed*/ |
168 |
int scrollX1, scrollY1, scrollX2, scrollY2; |
int scrollX1, scrollY1, scrollX2, scrollY2; |
169 |
/* These four coordinates define the region |
/* These four coordinates define the region |
170 |
* that is the 100% area for scrolling (i.e. |
* that is the 100% area for scrolling (i.e. |
171 |
* these numbers determine the size and |
* these numbers determine the size and |
172 |
* location of the sliders on scrollbars). |
* location of the sliders on scrollbars). |
173 |
* Units are pixels in canvas coords. */ |
* Units are pixels in canvas coords. */ |
174 |
char *regionString; /* The option string from which scrollX1 |
char *regionString; /* The option string from which scrollX1 |
175 |
* etc. are derived. Malloc'ed. */ |
* etc. are derived. Malloc'ed. */ |
176 |
int xScrollIncrement; /* If >0, defines a grid for horizontal |
int xScrollIncrement; /* If >0, defines a grid for horizontal |
177 |
* scrolling. This is the size of the "unit", |
* scrolling. This is the size of the "unit", |
178 |
* and the left edge of the screen will always |
* and the left edge of the screen will always |
179 |
* lie on an even unit boundary. */ |
* lie on an even unit boundary. */ |
180 |
int yScrollIncrement; /* If >0, defines a grid for horizontal |
int yScrollIncrement; /* If >0, defines a grid for horizontal |
181 |
* scrolling. This is the size of the "unit", |
* scrolling. This is the size of the "unit", |
182 |
* and the left edge of the screen will always |
* and the left edge of the screen will always |
183 |
* lie on an even unit boundary. */ |
* lie on an even unit boundary. */ |
184 |
|
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/* |
/* |
186 |
* Information used for scanning: |
* Information used for scanning: |
187 |
*/ |
*/ |
188 |
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|
189 |
int scanX; /* X-position at which scan started (e.g. |
int scanX; /* X-position at which scan started (e.g. |
190 |
* button was pressed here). */ |
* button was pressed here). */ |
191 |
int scanXOrigin; /* Value of xOrigin field when scan started. */ |
int scanXOrigin; /* Value of xOrigin field when scan started. */ |
192 |
int scanY; /* Y-position at which scan started (e.g. |
int scanY; /* Y-position at which scan started (e.g. |
193 |
* button was pressed here). */ |
* button was pressed here). */ |
194 |
int scanYOrigin; /* Value of yOrigin field when scan started. */ |
int scanYOrigin; /* Value of yOrigin field when scan started. */ |
195 |
|
|
196 |
/* |
/* |
197 |
* Information used to speed up searches by remembering the last item |
* Information used to speed up searches by remembering the last item |
198 |
* created or found with an item id search. |
* created or found with an item id search. |
199 |
*/ |
*/ |
200 |
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|
201 |
Tk_Item *hotPtr; /* Pointer to "hot" item (one that's been |
Tk_Item *hotPtr; /* Pointer to "hot" item (one that's been |
202 |
* recently used. NULL means there's no |
* recently used. NULL means there's no |
203 |
* hot item. */ |
* hot item. */ |
204 |
Tk_Item *hotPrevPtr; /* Pointer to predecessor to hotPtr (NULL |
Tk_Item *hotPrevPtr; /* Pointer to predecessor to hotPtr (NULL |
205 |
* means item is first in list). This is |
* means item is first in list). This is |
206 |
* only a hint and may not really be hotPtr's |
* only a hint and may not really be hotPtr's |
207 |
* predecessor. */ |
* predecessor. */ |
208 |
|
|
209 |
/* |
/* |
210 |
* Miscellaneous information: |
* Miscellaneous information: |
211 |
*/ |
*/ |
212 |
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|
213 |
Tk_Cursor cursor; /* Current cursor for window, or None. */ |
Tk_Cursor cursor; /* Current cursor for window, or None. */ |
214 |
char *takeFocus; /* Value of -takefocus option; not used in |
char *takeFocus; /* Value of -takefocus option; not used in |
215 |
* the C code, but used by keyboard traversal |
* the C code, but used by keyboard traversal |
216 |
* scripts. Malloc'ed, but may be NULL. */ |
* scripts. Malloc'ed, but may be NULL. */ |
217 |
double pixelsPerMM; /* Scale factor between MM and pixels; |
double pixelsPerMM; /* Scale factor between MM and pixels; |
218 |
* used when converting coordinates. */ |
* used when converting coordinates. */ |
219 |
int flags; /* Various flags; see below for |
int flags; /* Various flags; see below for |
220 |
* definitions. */ |
* definitions. */ |
221 |
int nextId; /* Number to use as id for next item |
int nextId; /* Number to use as id for next item |
222 |
* created in widget. */ |
* created in widget. */ |
223 |
Tk_PostscriptInfo psInfo; |
Tk_PostscriptInfo psInfo; |
224 |
/* Pointer to information used for generating |
/* Pointer to information used for generating |
225 |
* Postscript for the canvas. NULL means |
* Postscript for the canvas. NULL means |
226 |
* no Postscript is currently being |
* no Postscript is currently being |
227 |
* generated. */ |
* generated. */ |
228 |
Tcl_HashTable idTable; /* Table of integer indices. */ |
Tcl_HashTable idTable; /* Table of integer indices. */ |
229 |
/* |
/* |
230 |
* Additional information, added by the 'dash'-patch |
* Additional information, added by the 'dash'-patch |
231 |
*/ |
*/ |
232 |
VOID *reserved1; |
VOID *reserved1; |
233 |
Tk_State canvas_state; /* state of canvas */ |
Tk_State canvas_state; /* state of canvas */ |
234 |
VOID *reserved2; |
VOID *reserved2; |
235 |
VOID *reserved3; |
VOID *reserved3; |
236 |
Tk_TSOffset tsoffset; |
Tk_TSOffset tsoffset; |
237 |
#ifndef USE_OLD_TAG_SEARCH |
#ifndef USE_OLD_TAG_SEARCH |
238 |
TagSearchExpr *bindTagExprs; /* linked list of tag expressions used in bindings */ |
TagSearchExpr *bindTagExprs; /* linked list of tag expressions used in bindings */ |
239 |
#endif |
#endif |
240 |
} TkCanvas; |
} TkCanvas; |
241 |
|
|
242 |
/* |
/* |
243 |
* Flag bits for canvases: |
* Flag bits for canvases: |
244 |
* |
* |
245 |
* REDRAW_PENDING - 1 means a DoWhenIdle handler has already |
* REDRAW_PENDING - 1 means a DoWhenIdle handler has already |
246 |
* been created to redraw some or all of the |
* been created to redraw some or all of the |
247 |
* canvas. |
* canvas. |
248 |
* REDRAW_BORDERS - 1 means that the borders need to be redrawn |
* REDRAW_BORDERS - 1 means that the borders need to be redrawn |
249 |
* during the next redisplay operation. |
* during the next redisplay operation. |
250 |
* REPICK_NEEDED - 1 means DisplayCanvas should pick a new |
* REPICK_NEEDED - 1 means DisplayCanvas should pick a new |
251 |
* current item before redrawing the canvas. |
* current item before redrawing the canvas. |
252 |
* GOT_FOCUS - 1 means the focus is currently in this |
* GOT_FOCUS - 1 means the focus is currently in this |
253 |
* widget, so should draw the insertion cursor |
* widget, so should draw the insertion cursor |
254 |
* and traversal highlight. |
* and traversal highlight. |
255 |
* CURSOR_ON - 1 means the insertion cursor is in the "on" |
* CURSOR_ON - 1 means the insertion cursor is in the "on" |
256 |
* phase of its blink cycle. 0 means either |
* phase of its blink cycle. 0 means either |
257 |
* we don't have the focus or the cursor is in |
* we don't have the focus or the cursor is in |
258 |
* the "off" phase of its cycle. |
* the "off" phase of its cycle. |
259 |
* UPDATE_SCROLLBARS - 1 means the scrollbars should get updated |
* UPDATE_SCROLLBARS - 1 means the scrollbars should get updated |
260 |
* as part of the next display operation. |
* as part of the next display operation. |
261 |
* LEFT_GRABBED_ITEM - 1 means that the mouse left the current |
* LEFT_GRABBED_ITEM - 1 means that the mouse left the current |
262 |
* item while a grab was in effect, so we |
* item while a grab was in effect, so we |
263 |
* didn't change canvasPtr->currentItemPtr. |
* didn't change canvasPtr->currentItemPtr. |
264 |
* REPICK_IN_PROGRESS - 1 means PickCurrentItem is currently |
* REPICK_IN_PROGRESS - 1 means PickCurrentItem is currently |
265 |
* executing. If it should be called recursively, |
* executing. If it should be called recursively, |
266 |
* it should simply return immediately. |
* it should simply return immediately. |
267 |
* BBOX_NOT_EMPTY - 1 means that the bounding box of the area |
* BBOX_NOT_EMPTY - 1 means that the bounding box of the area |
268 |
* that should be redrawn is not empty. |
* that should be redrawn is not empty. |
269 |
*/ |
*/ |
270 |
|
|
271 |
#define REDRAW_PENDING 1 |
#define REDRAW_PENDING 1 |
272 |
#define REDRAW_BORDERS 2 |
#define REDRAW_BORDERS 2 |
273 |
#define REPICK_NEEDED 4 |
#define REPICK_NEEDED 4 |
274 |
#define GOT_FOCUS 8 |
#define GOT_FOCUS 8 |
275 |
#define CURSOR_ON 0x10 |
#define CURSOR_ON 0x10 |
276 |
#define UPDATE_SCROLLBARS 0x20 |
#define UPDATE_SCROLLBARS 0x20 |
277 |
#define LEFT_GRABBED_ITEM 0x40 |
#define LEFT_GRABBED_ITEM 0x40 |
278 |
#define REPICK_IN_PROGRESS 0x100 |
#define REPICK_IN_PROGRESS 0x100 |
279 |
#define BBOX_NOT_EMPTY 0x200 |
#define BBOX_NOT_EMPTY 0x200 |
280 |
|
|
281 |
/* |
/* |
282 |
* Flag bits for canvas items (redraw_flags): |
* Flag bits for canvas items (redraw_flags): |
283 |
* |
* |
284 |
* FORCE_REDRAW - 1 means that the new coordinates of some |
* FORCE_REDRAW - 1 means that the new coordinates of some |
285 |
* item are not yet registered using |
* item are not yet registered using |
286 |
* Tk_CanvasEventuallyRedraw(). It should still |
* Tk_CanvasEventuallyRedraw(). It should still |
287 |
* be done by the general canvas code. |
* be done by the general canvas code. |
288 |
*/ |
*/ |
289 |
|
|
290 |
#define FORCE_REDRAW 8 |
#define FORCE_REDRAW 8 |
291 |
|
|
292 |
/* |
/* |
293 |
* Canvas-related procedures that are shared among Tk modules but not |
* Canvas-related procedures that are shared among Tk modules but not |
294 |
* exported to the outside world: |
* exported to the outside world: |
295 |
*/ |
*/ |
296 |
|
|
297 |
extern int TkCanvPostscriptCmd _ANSI_ARGS_((TkCanvas *canvasPtr, |
extern int TkCanvPostscriptCmd _ANSI_ARGS_((TkCanvas *canvasPtr, |
298 |
Tcl_Interp *interp, int argc, char **argv)); |
Tcl_Interp *interp, int argc, char **argv)); |
299 |
|
|
300 |
/* |
/* |
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* The following definition is shared between tkCanvPs.c and tkCanvImg.c, |
* The following definition is shared between tkCanvPs.c and tkCanvImg.c, |
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* and is used in generating postscript for images and windows. |
* and is used in generating postscript for images and windows. |
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*/ |
*/ |
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typedef struct TkColormapData { /* Hold color information for a window */ |
typedef struct TkColormapData { /* Hold color information for a window */ |
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int separated; /* Whether to use separate color bands */ |
int separated; /* Whether to use separate color bands */ |
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int color; /* Whether window is color or black/white */ |
int color; /* Whether window is color or black/white */ |
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int ncolors; /* Number of color values stored */ |
int ncolors; /* Number of color values stored */ |
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XColor *colors; /* Pixel value -> RGB mappings */ |
XColor *colors; /* Pixel value -> RGB mappings */ |
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int red_mask, green_mask, blue_mask; /* Masks and shifts for each */ |
int red_mask, green_mask, blue_mask; /* Masks and shifts for each */ |
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int red_shift, green_shift, blue_shift; /* color band */ |
int red_shift, green_shift, blue_shift; /* color band */ |
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} TkColormapData; |
} TkColormapData; |
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#endif /* _TKCANVAS */ |
#endif /* _TKCANVAS */ |
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/* End of tkcanvas.h */ |
/* End of tkcanvas.h */ |