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authordkf <donal.k.fellows@manchester.ac.uk>2005-11-15 15:18:21 (GMT)
committerdkf <donal.k.fellows@manchester.ac.uk>2005-11-15 15:18:21 (GMT)
commit880c27d88e6fe14e3834ff5403249e1fe7b1bf74 (patch)
tree7807395c24a76cc57ed6ff2e3510a03e04efbc37 /generic/tkImgBmap.c
parent510452cedeeebfa59bfb1f13e86e74a6bc287320 (diff)
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ANSIfy
Diffstat (limited to 'generic/tkImgBmap.c')
-rw-r--r--generic/tkImgBmap.c607
1 files changed, 301 insertions, 306 deletions
diff --git a/generic/tkImgBmap.c b/generic/tkImgBmap.c
index b5e77c0..26322c9 100644
--- a/generic/tkImgBmap.c
+++ b/generic/tkImgBmap.c
@@ -1,4 +1,4 @@
-/*
+/*
* tkImgBmap.c --
*
* This procedure implements images of type "bitmap" for Tk.
@@ -10,7 +10,7 @@
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tkImgBmap.c,v 1.16 2004/01/13 02:06:00 davygrvy Exp $
+ * RCS: @(#) $Id: tkImgBmap.c,v 1.17 2005/11/15 15:18:21 dkf Exp $
*/
#include "tkInt.h"
@@ -22,21 +22,19 @@
*/
typedef struct BitmapMaster {
- Tk_ImageMaster tkMaster; /* Tk's token for image master. NULL means
- * the image is being deleted. */
- Tcl_Interp *interp; /* Interpreter for application that is
- * using image. */
- Tcl_Command imageCmd; /* Token for image command (used to delete
- * it when the image goes away). NULL means
- * the image command has already been
- * deleted. */
+ Tk_ImageMaster tkMaster; /* Tk's token for image master. NULL means the
+ * image is being deleted. */
+ Tcl_Interp *interp; /* Interpreter for application that is using
+ * image. */
+ Tcl_Command imageCmd; /* Token for image command (used to delete it
+ * when the image goes away). NULL means the
+ * image command has already been deleted. */
int width, height; /* Dimensions of image. */
- char *data; /* Data comprising bitmap (suitable for
- * input to XCreateBitmapFromData). May
- * be NULL if no data. Malloc'ed. */
- char *maskData; /* Data for bitmap's mask (suitable for
- * input to XCreateBitmapFromData).
- * Malloc'ed. */
+ char *data; /* Data comprising bitmap (suitable for input
+ * to XCreateBitmapFromData). May be NULL if
+ * no data. Malloc'ed. */
+ char *maskData; /* Data for bitmap's mask (suitable for input
+ * to XCreateBitmapFromData). Malloc'ed. */
Tk_Uid fgUid; /* Value of -foreground option (malloc'ed). */
Tk_Uid bgUid; /* Value of -background option (malloc'ed). */
char *fileString; /* Value of -file option (malloc'ed). */
@@ -49,13 +47,13 @@ typedef struct BitmapMaster {
} BitmapMaster;
/*
- * The following data structure represents all of the instances of an
- * image that lie within a particular window:
+ * The following data structure represents all of the instances of an image
+ * that lie within a particular window:
*/
typedef struct BitmapInstance {
- int refCount; /* Number of instances that share this
- * data structure. */
+ int refCount; /* Number of instances that share this data
+ * structure. */
BitmapMaster *masterPtr; /* Pointer to master for image. */
Tk_Window tkwin; /* Window in which the instances will be
* displayed. */
@@ -65,37 +63,35 @@ typedef struct BitmapInstance {
Pixmap mask; /* Mask: only display bitmap pixels where
* there are 1's here. */
GC gc; /* Graphics context for displaying bitmap.
- * None means there was an error while
- * setting up the instance, so it cannot
- * be displayed. */
+ * None means there was an error while setting
+ * up the instance, so it cannot be
+ * displayed. */
struct BitmapInstance *nextPtr;
/* Next in list of all instance structures
- * associated with masterPtr (NULL means
- * end of list). */
+ * associated with masterPtr (NULL means end
+ * of list). */
} BitmapInstance;
/*
* The type record for bitmap images:
*/
-static int GetByte _ANSI_ARGS_((Tcl_Channel chan));
-static int ImgBmapCreate _ANSI_ARGS_((Tcl_Interp *interp,
+static int GetByte(Tcl_Channel chan);
+static int ImgBmapCreate(Tcl_Interp *interp,
char *name, int argc, Tcl_Obj *CONST objv[],
Tk_ImageType *typePtr, Tk_ImageMaster master,
- ClientData *clientDataPtr));
-static ClientData ImgBmapGet _ANSI_ARGS_((Tk_Window tkwin,
- ClientData clientData));
-static void ImgBmapDisplay _ANSI_ARGS_((ClientData clientData,
- Display *display, Drawable drawable,
+ ClientData *clientDataPtr);
+static ClientData ImgBmapGet(Tk_Window tkwin, ClientData clientData);
+static void ImgBmapDisplay(ClientData clientData,
+ Display *display, Drawable drawable,
int imageX, int imageY, int width, int height,
- int drawableX, int drawableY));
-static void ImgBmapFree _ANSI_ARGS_((ClientData clientData,
- Display *display));
-static void ImgBmapDelete _ANSI_ARGS_((ClientData clientData));
-static int ImgBmapPostscript _ANSI_ARGS_((ClientData clientData,
+ int drawableX, int drawableY);
+static void ImgBmapFree(ClientData clientData, Display *display);
+static void ImgBmapDelete(ClientData clientData);
+static int ImgBmapPostscript(ClientData clientData,
Tcl_Interp *interp, Tk_Window tkwin,
Tk_PostscriptInfo psinfo, int x, int y,
- int width, int height, int prepass));
+ int width, int height, int prepass);
Tk_ImageType tkBitmapImageType = {
"bitmap", /* name */
@@ -105,7 +101,7 @@ Tk_ImageType tkBitmapImageType = {
ImgBmapFree, /* freeProc */
ImgBmapDelete, /* deleteProc */
ImgBmapPostscript, /* postscriptProc */
- (Tk_ImageType *) NULL /* nextPtr */
+ NULL /* nextPtr */
};
/*
@@ -113,28 +109,25 @@ Tk_ImageType tkBitmapImageType = {
*/
static Tk_ConfigSpec configSpecs[] = {
- {TK_CONFIG_UID, "-background", (char *) NULL, (char *) NULL,
+ {TK_CONFIG_UID, "-background", NULL, NULL,
"", Tk_Offset(BitmapMaster, bgUid), 0},
- {TK_CONFIG_STRING, "-data", (char *) NULL, (char *) NULL,
- (char *) NULL, Tk_Offset(BitmapMaster, dataString), TK_CONFIG_NULL_OK},
- {TK_CONFIG_STRING, "-file", (char *) NULL, (char *) NULL,
- (char *) NULL, Tk_Offset(BitmapMaster, fileString), TK_CONFIG_NULL_OK},
- {TK_CONFIG_UID, "-foreground", (char *) NULL, (char *) NULL,
+ {TK_CONFIG_STRING, "-data", NULL, NULL,
+ NULL, Tk_Offset(BitmapMaster, dataString), TK_CONFIG_NULL_OK},
+ {TK_CONFIG_STRING, "-file", NULL, NULL,
+ NULL, Tk_Offset(BitmapMaster, fileString), TK_CONFIG_NULL_OK},
+ {TK_CONFIG_UID, "-foreground", NULL, NULL,
"#000000", Tk_Offset(BitmapMaster, fgUid), 0},
- {TK_CONFIG_STRING, "-maskdata", (char *) NULL, (char *) NULL,
- (char *) NULL, Tk_Offset(BitmapMaster, maskDataString),
- TK_CONFIG_NULL_OK},
- {TK_CONFIG_STRING, "-maskfile", (char *) NULL, (char *) NULL,
- (char *) NULL, Tk_Offset(BitmapMaster, maskFileString),
- TK_CONFIG_NULL_OK},
- {TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL,
- (char *) NULL, 0, 0}
+ {TK_CONFIG_STRING, "-maskdata", NULL, NULL,
+ NULL, Tk_Offset(BitmapMaster, maskDataString), TK_CONFIG_NULL_OK},
+ {TK_CONFIG_STRING, "-maskfile", NULL, NULL,
+ NULL, Tk_Offset(BitmapMaster, maskFileString), TK_CONFIG_NULL_OK},
+ {TK_CONFIG_END, NULL, NULL, NULL, NULL, 0, 0}
};
/*
- * The following data structure is used to describe the state of
- * parsing a bitmap file or string. It is used for communication
- * between TkGetBitmapData and NextBitmapWord.
+ * The following data structure is used to describe the state of parsing a
+ * bitmap file or string. It is used for communication between TkGetBitmapData
+ * and NextBitmapWord.
*/
#define MAX_WORD_LENGTH 100
@@ -142,8 +135,8 @@ typedef struct ParseInfo {
char *string; /* Next character of string data for bitmap,
* or NULL if bitmap is being read from
* file. */
- Tcl_Channel chan; /* File containing bitmap data, or NULL
- * if no file. */
+ Tcl_Channel chan; /* File containing bitmap data, or NULL if no
+ * file. */
char word[MAX_WORD_LENGTH+1];
/* Current word of bitmap data, NULL
* terminated. */
@@ -154,24 +147,20 @@ typedef struct ParseInfo {
* Prototypes for procedures used only locally in this file:
*/
-static int ImgBmapCmd _ANSI_ARGS_((ClientData clientData,
- Tcl_Interp *interp, int argc, Tcl_Obj *CONST objv[]));
-static void ImgBmapCmdDeletedProc _ANSI_ARGS_((
- ClientData clientData));
-static void ImgBmapConfigureInstance _ANSI_ARGS_((
- BitmapInstance *instancePtr));
-static int ImgBmapConfigureMaster _ANSI_ARGS_((
- BitmapMaster *masterPtr, int argc, Tcl_Obj *CONST objv[],
- int flags));
-static int NextBitmapWord _ANSI_ARGS_((ParseInfo *parseInfoPtr));
+static int ImgBmapCmd(ClientData clientData, Tcl_Interp *interp,
+ int argc, Tcl_Obj *CONST objv[]);
+static void ImgBmapCmdDeletedProc(ClientData clientData);
+static void ImgBmapConfigureInstance(BitmapInstance *instancePtr);
+static int ImgBmapConfigureMaster(BitmapMaster *masterPtr,
+ int argc, Tcl_Obj *CONST objv[], int flags);
+static int NextBitmapWord(ParseInfo *parseInfoPtr);
/*
*----------------------------------------------------------------------
*
* ImgBmapCreate --
*
- * This procedure is called by the Tk image code to create "test"
- * images.
+ * This procedure is called by the Tk image code to create "test" images.
*
* Results:
* A standard Tcl result.
@@ -184,18 +173,18 @@ static int NextBitmapWord _ANSI_ARGS_((ParseInfo *parseInfoPtr));
/* ARGSUSED */
static int
-ImgBmapCreate(interp, name, argc, argv, typePtr, master, clientDataPtr)
- Tcl_Interp *interp; /* Interpreter for application containing
+ImgBmapCreate(
+ Tcl_Interp *interp, /* Interpreter for application containing
* image. */
- char *name; /* Name to use for image. */
- int argc; /* Number of arguments. */
- Tcl_Obj *CONST argv[]; /* Argument objects for options (doesn't
+ char *name, /* Name to use for image. */
+ int argc, /* Number of arguments. */
+ Tcl_Obj *CONST argv[], /* Argument objects for options (doesn't
* include image name or type). */
- Tk_ImageType *typePtr; /* Pointer to our type record (not used). */
- Tk_ImageMaster master; /* Token for image, to be used by us in
- * later callbacks. */
- ClientData *clientDataPtr; /* Store manager's token for image here;
- * it will be returned in later callbacks. */
+ Tk_ImageType *typePtr, /* Pointer to our type record (not used). */
+ Tk_ImageMaster master, /* Token for image, to be used by us in later
+ * callbacks. */
+ ClientData *clientDataPtr) /* Store manager's token for image here; it
+ * will be returned in later callbacks. */
{
BitmapMaster *masterPtr;
@@ -228,28 +217,28 @@ ImgBmapCreate(interp, name, argc, argv, typePtr, master, clientDataPtr)
* ImgBmapConfigureMaster --
*
* This procedure is called when a bitmap image is created or
- * reconfigured. It process configuration options and resets
- * any instances of the image.
+ * reconfigured. It process configuration options and resets any
+ * instances of the image.
*
* Results:
- * A standard Tcl return value. If TCL_ERROR is returned then
- * an error message is left in the masterPtr->interp's result.
+ * A standard Tcl return value. If TCL_ERROR is returned then an error
+ * message is left in the masterPtr->interp's result.
*
* Side effects:
- * Existing instances of the image will be redisplayed to match
- * the new configuration options.
+ * Existing instances of the image will be redisplayed to match the new
+ * configuration options.
*
*----------------------------------------------------------------------
*/
static int
-ImgBmapConfigureMaster(masterPtr, objc, objv, flags)
- BitmapMaster *masterPtr; /* Pointer to data structure describing
+ImgBmapConfigureMaster(
+ BitmapMaster *masterPtr, /* Pointer to data structure describing
* overall bitmap image to (reconfigure). */
- int objc; /* Number of entries in objv. */
- Tcl_Obj *CONST objv[]; /* Pairs of configuration options for image. */
- int flags; /* Flags to pass to Tk_ConfigureWidget,
- * such as TK_CONFIG_ARGV_ONLY. */
+ int objc, /* Number of entries in objv. */
+ Tcl_Obj *CONST objv[], /* Pairs of configuration options for image. */
+ int flags) /* Flags to pass to Tk_ConfigureWidget, such
+ * as TK_CONFIG_ARGV_ONLY. */
{
BitmapInstance *instancePtr;
int maskWidth, maskHeight, dummy1, dummy2;
@@ -269,8 +258,8 @@ ImgBmapConfigureMaster(masterPtr, objc, objv, flags)
ckfree((char *) argv);
/*
- * Parse the bitmap and/or mask to create binary data. Make sure that
- * the bitmap and mask have the same dimensions.
+ * Parse the bitmap and/or mask to create binary data. Make sure that the
+ * bitmap and mask have the same dimensions.
*/
if (masterPtr->data != NULL) {
@@ -313,9 +302,9 @@ ImgBmapConfigureMaster(masterPtr, objc, objv, flags)
}
/*
- * Cycle through all of the instances of this image, regenerating
- * the information for each instance. Then force the image to be
- * redisplayed everywhere that it is used.
+ * Cycle through all of the instances of this image, regenerating the
+ * information for each instance. Then force the image to be redisplayed
+ * everywhere that it is used.
*/
for (instancePtr = masterPtr->instancePtr; instancePtr != NULL;
@@ -332,24 +321,24 @@ ImgBmapConfigureMaster(masterPtr, objc, objv, flags)
*
* ImgBmapConfigureInstance --
*
- * This procedure is called to create displaying information for
- * a bitmap image instance based on the configuration information
- * in the master. It is invoked both when new instances are
- * created and when the master is reconfigured.
+ * This procedure is called to create displaying information for a bitmap
+ * image instance based on the configuration information in the master.
+ * It is invoked both when new instances are created and when the master
+ * is reconfigured.
*
* Results:
* None.
*
* Side effects:
- * Generates errors via Tcl_BackgroundError if there are problems
- * in setting up the instance.
+ * Generates errors via Tcl_BackgroundError if there are problems in
+ * setting up the instance.
*
*----------------------------------------------------------------------
*/
static void
-ImgBmapConfigureInstance(instancePtr)
- BitmapInstance *instancePtr; /* Instance to reconfigure. */
+ImgBmapConfigureInstance(
+ BitmapInstance *instancePtr)/* Instance to reconfigure. */
{
BitmapMaster *masterPtr = instancePtr->masterPtr;
XColor *colorPtr;
@@ -359,8 +348,8 @@ ImgBmapConfigureInstance(instancePtr)
Pixmap oldMask;
/*
- * For each of the options in masterPtr, translate the string
- * form into an internal form appropriate for instancePtr.
+ * For each of the options in masterPtr, translate the string form into an
+ * internal form appropriate for instancePtr.
*/
if (*masterPtr->bgUid != 0) {
@@ -400,11 +389,12 @@ ImgBmapConfigureInstance(instancePtr)
}
/*
- * Careful: We have to allocate a new mask Pixmap before deleting
- * the old one. Otherwise, The XID allocator will always return
- * the same XID for the new Pixmap as was used for the old Pixmap.
- * And that will prevent the mask from changing in the GC below.
+ * Careful: We have to allocate a new mask Pixmap before deleting the old
+ * one. Otherwise, The XID allocator will always return the same XID for
+ * the new Pixmap as was used for the old Pixmap. And that will prevent
+ * the mask from changing in the GC below.
*/
+
oldMask = instancePtr->mask;
instancePtr->mask = None;
if (masterPtr->maskData != NULL) {
@@ -415,7 +405,7 @@ ImgBmapConfigureInstance(instancePtr)
(unsigned) masterPtr->height);
}
if (oldMask != None) {
- Tk_FreePixmap(Tk_Display(instancePtr->tkwin), oldMask);
+ Tk_FreePixmap(Tk_Display(instancePtr->tkwin), oldMask);
}
if (masterPtr->data != NULL) {
@@ -443,11 +433,10 @@ ImgBmapConfigureInstance(instancePtr)
instancePtr->gc = gc;
return;
- error:
+ error:
/*
- * An error occurred: clear the graphics context in the instance to
- * make it clear that this instance cannot be displayed. Then report
- * the error.
+ * An error occurred: clear the graphics context in the instance to make
+ * it clear that this instance cannot be displayed. Then report the error.
*/
if (instancePtr->gc != None) {
@@ -465,17 +454,16 @@ ImgBmapConfigureInstance(instancePtr)
*
* TkGetBitmapData --
*
- * Given a file name or ASCII string, this procedure parses the
- * file or string contents to produce binary data for a bitmap.
+ * Given a file name or ASCII string, this procedure parses the file or
+ * string contents to produce binary data for a bitmap.
*
* Results:
- * If the bitmap description was parsed successfully then the
- * return value is a malloc-ed array containing the bitmap data.
- * The dimensions of the data are stored in *widthPtr and
- * *heightPtr. *hotXPtr and *hotYPtr are set to the bitmap
- * hotspot if one is defined, otherwise they are set to -1, -1.
- * If an error occurred, NULL is returned and an error message is
- * left in the interp's result.
+ * If the bitmap description was parsed successfully then the return
+ * value is a malloc-ed array containing the bitmap data. The dimensions
+ * of the data are stored in *widthPtr and *heightPtr. *hotXPtr and
+ * *hotYPtr are set to the bitmap hotspot if one is defined, otherwise
+ * they are set to -1, -1. If an error occurred, NULL is returned and an
+ * error message is left in the interp's result.
*
* Side effects:
* A bitmap is created.
@@ -484,18 +472,15 @@ ImgBmapConfigureInstance(instancePtr)
*/
char *
-TkGetBitmapData(interp, string, fileName, widthPtr, heightPtr,
- hotXPtr, hotYPtr)
- Tcl_Interp *interp; /* For reporting errors, or NULL. */
- char *string; /* String describing bitmap. May
- * be NULL. */
- char *fileName; /* Name of file containing bitmap
- * description. Used only if string
- * is NULL. Must not be NULL if
- * string is NULL. */
- int *widthPtr, *heightPtr; /* Dimensions of bitmap get returned
- * here. */
- int *hotXPtr, *hotYPtr; /* Position of hot spot or -1,-1. */
+TkGetBitmapData(
+ Tcl_Interp *interp, /* For reporting errors, or NULL. */
+ char *string, /* String describing bitmap. May be NULL. */
+ char *fileName, /* Name of file containing bitmap description.
+ * Used only if string is NULL. Must not be
+ * NULL if string is NULL. */
+ int *widthPtr, int *heightPtr,
+ /* Dimensions of bitmap get returned here. */
+ int *hotXPtr, int *hotYPtr) /* Position of hot spot or -1,-1. */
{
int width, height, numBytes, hotX, hotY;
CONST char *expandedFileName;
@@ -506,11 +491,11 @@ TkGetBitmapData(interp, string, fileName, widthPtr, heightPtr,
pi.string = string;
if (string == NULL) {
- if ((interp != NULL) && Tcl_IsSafe(interp)) {
- Tcl_AppendResult(interp, "can't get bitmap data from a file in a",
- " safe interpreter", (char *) NULL);
- return NULL;
- }
+ if ((interp != NULL) && Tcl_IsSafe(interp)) {
+ Tcl_AppendResult(interp, "can't get bitmap data from a file in a",
+ " safe interpreter", NULL);
+ return NULL;
+ }
expandedFileName = Tcl_TranslateFileName(interp, fileName, &buffer);
if (expandedFileName == NULL) {
return NULL;
@@ -521,29 +506,28 @@ TkGetBitmapData(interp, string, fileName, widthPtr, heightPtr,
if (interp != NULL) {
Tcl_ResetResult(interp);
Tcl_AppendResult(interp, "couldn't read bitmap file \"",
- fileName, "\": ", Tcl_PosixError(interp),
- (char *) NULL);
+ fileName, "\": ", Tcl_PosixError(interp), NULL);
}
return NULL;
}
-
- if (Tcl_SetChannelOption(interp, pi.chan, "-translation", "binary")
+
+ if (Tcl_SetChannelOption(interp, pi.chan, "-translation", "binary")
!= TCL_OK) {
- return NULL;
- }
- if (Tcl_SetChannelOption(interp, pi.chan, "-encoding", "binary")
+ return NULL;
+ }
+ if (Tcl_SetChannelOption(interp, pi.chan, "-encoding", "binary")
!= TCL_OK) {
- return NULL;
- }
+ return NULL;
+ }
} else {
pi.chan = NULL;
}
/*
- * Parse the lines that define the dimensions of the bitmap,
- * plus the first line that defines the bitmap data (it declares
- * the name of a data variable but doesn't include any actual
- * data). These lines look something like the following:
+ * Parse the lines that define the dimensions of the bitmap, plus the
+ * first line that defines the bitmap data (it declares the name of a data
+ * variable but doesn't include any actual data). These lines look
+ * something like the following:
*
* #define foo_width 16
* #define foo_height 16
@@ -551,9 +535,9 @@ TkGetBitmapData(interp, string, fileName, widthPtr, heightPtr,
* #define foo_y_hot 3
* static char foo_bits[] = {
*
- * The x_hot and y_hot lines may or may not be present. It's
- * important to check for "char" in the last line, in order to
- * reject old X10-style bitmaps that used shorts.
+ * The x_hot and y_hot lines may or may not be present. It's important to
+ * check for "char" in the last line, in order to reject old X10-style
+ * bitmaps that used shorts.
*/
width = 0;
@@ -612,19 +596,18 @@ TkGetBitmapData(interp, string, fileName, widthPtr, heightPtr,
} else if ((pi.word[0] == '{') && (pi.word[1] == 0)) {
if (interp != NULL) {
Tcl_AppendResult(interp, "format error in bitmap data; ",
- "looks like it's an obsolete X10 bitmap file",
- (char *) NULL);
+ "looks like it's an obsolete X10 bitmap file", NULL);
}
goto errorCleanup;
}
}
/*
- * Now we've read everything but the data. Allocate an array
- * and read in the data.
+ * Now we've read everything but the data. Allocate an array and read in
+ * the data.
*/
- getData:
+ getData:
if ((width <= 0) || (height <= 0)) {
goto error;
}
@@ -641,7 +624,7 @@ TkGetBitmapData(interp, string, fileName, widthPtr, heightPtr,
}
/*
- * All done. Clean up and return.
+ * All done. Clean up and return.
*/
if (pi.chan != NULL) {
@@ -653,12 +636,12 @@ TkGetBitmapData(interp, string, fileName, widthPtr, heightPtr,
*hotYPtr = hotY;
return data;
- error:
+ error:
if (interp != NULL) {
Tcl_SetResult(interp, "format error in bitmap data", TCL_STATIC);
}
-
- errorCleanup:
+
+ errorCleanup:
if (data != NULL) {
ckfree(data);
}
@@ -673,13 +656,13 @@ TkGetBitmapData(interp, string, fileName, widthPtr, heightPtr,
*
* NextBitmapWord --
*
- * This procedure retrieves the next word of information (stuff
- * between commas or white space) from a bitmap description.
+ * This procedure retrieves the next word of information (stuff between
+ * commas or white space) from a bitmap description.
*
* Results:
- * Returns TCL_OK if all went well. In this case the next word,
- * and its length, will be availble in *parseInfoPtr. If the end
- * of the bitmap description was reached then TCL_ERROR is returned.
+ * Returns TCL_OK if all went well. In this case the next word, and its
+ * length, will be availble in *parseInfoPtr. If the end of the bitmap
+ * description was reached then TCL_ERROR is returned.
*
* Side effects:
* None.
@@ -688,9 +671,9 @@ TkGetBitmapData(interp, string, fileName, widthPtr, heightPtr,
*/
static int
-NextBitmapWord(parseInfoPtr)
- ParseInfo *parseInfoPtr; /* Describes what we're reading
- * and where we are in it. */
+NextBitmapWord(
+ ParseInfo *parseInfoPtr) /* Describes what we're reading and where we
+ * are in it. */
{
char *src, *dst;
int c;
@@ -742,9 +725,9 @@ NextBitmapWord(parseInfoPtr)
*
* ImgBmapCmd --
*
- * This procedure is invoked to process the Tcl command
- * that corresponds to an image managed by this module.
- * See the user documentation for details on what it does.
+ * This procedure is invoked to process the Tcl command that corresponds
+ * to an image managed by this module. See the user documentation for
+ * details on what it does.
*
* Results:
* A standard Tcl result.
@@ -756,15 +739,15 @@ NextBitmapWord(parseInfoPtr)
*/
static int
-ImgBmapCmd(clientData, interp, objc, objv)
- ClientData clientData; /* Information about the image master. */
- Tcl_Interp *interp; /* Current interpreter. */
- int objc; /* Number of arguments. */
- Tcl_Obj *CONST objv[]; /* Argument objects. */
+ImgBmapCmd(
+ ClientData clientData, /* Information about the image master. */
+ Tcl_Interp *interp, /* Current interpreter. */
+ int objc, /* Number of arguments. */
+ Tcl_Obj *CONST objv[]) /* Argument objects. */
{
- static CONST char *bmapOptions[] = {"cget", "configure", (char *) NULL};
+ static CONST char *bmapOptions[] = {"cget", "configure", NULL};
BitmapMaster *masterPtr = (BitmapMaster *) clientData;
- int code, index;
+ int index;
if (objc < 2) {
Tcl_WrongNumArgs(interp, 1, objv, "option ?arg arg ...?");
@@ -775,33 +758,29 @@ ImgBmapCmd(clientData, interp, objc, objv)
return TCL_ERROR;
}
switch (index) {
- case 0: {
+ case 0: /* cget */
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "option");
return TCL_ERROR;
}
return Tk_ConfigureValue(interp, Tk_MainWindow(interp), configSpecs,
(char *) masterPtr, Tcl_GetString(objv[2]), 0);
- }
- case 1: {
+ case 1: /* configure */
if (objc == 2) {
- code = Tk_ConfigureInfo(interp, Tk_MainWindow(interp),
- configSpecs, (char *) masterPtr, (char *) NULL, 0);
+ return Tk_ConfigureInfo(interp, Tk_MainWindow(interp),
+ configSpecs, (char *) masterPtr, NULL, 0);
} else if (objc == 3) {
- code = Tk_ConfigureInfo(interp, Tk_MainWindow(interp),
+ return Tk_ConfigureInfo(interp, Tk_MainWindow(interp),
configSpecs, (char *) masterPtr,
Tcl_GetString(objv[2]), 0);
} else {
- code = ImgBmapConfigureMaster(masterPtr, objc-2, objv+2,
+ return ImgBmapConfigureMaster(masterPtr, objc-2, objv+2,
TK_CONFIG_ARGV_ONLY);
}
- return code;
- }
- default: {
+ default:
Tcl_Panic("bad const entries to bmapOptions in ImgBmapCmd");
- }
+ return TCL_OK;
}
- return TCL_OK;
}
/*
@@ -809,33 +788,32 @@ ImgBmapCmd(clientData, interp, objc, objv)
*
* ImgBmapGet --
*
- * This procedure is called for each use of a bitmap image in a
- * widget.
+ * This procedure is called for each use of a bitmap image in a widget.
*
* Results:
- * The return value is a token for the instance, which is passed
- * back to us in calls to ImgBmapDisplay and ImgBmapFree.
+ * The return value is a token for the instance, which is passed back to
+ * us in calls to ImgBmapDisplay and ImgBmapFree.
*
* Side effects:
- * A data structure is set up for the instance (or, an existing
- * instance is re-used for the new one).
+ * A data structure is set up for the instance (or, an existing instance
+ * is re-used for the new one).
*
*----------------------------------------------------------------------
*/
static ClientData
-ImgBmapGet(tkwin, masterData)
- Tk_Window tkwin; /* Window in which the instance will be
+ImgBmapGet(
+ Tk_Window tkwin, /* Window in which the instance will be
* used. */
- ClientData masterData; /* Pointer to our master structure for the
+ ClientData masterData) /* Pointer to our master structure for the
* image. */
{
BitmapMaster *masterPtr = (BitmapMaster *) masterData;
BitmapInstance *instancePtr;
/*
- * See if there is already an instance for this window. If so
- * then just re-use it.
+ * See if there is already an instance for this window. If so then just
+ * re-use it.
*/
for (instancePtr = masterPtr->instancePtr; instancePtr != NULL;
@@ -847,8 +825,8 @@ ImgBmapGet(tkwin, masterData)
}
/*
- * The image isn't already in use in this window. Make a new
- * instance of the image.
+ * The image isn't already in use in this window. Make a new instance of
+ * the image.
*/
instancePtr = (BitmapInstance *) ckalloc(sizeof(BitmapInstance));
@@ -893,24 +871,24 @@ ImgBmapGet(tkwin, masterData)
*/
static void
-ImgBmapDisplay(clientData, display, drawable, imageX, imageY, width,
- height, drawableX, drawableY)
- ClientData clientData; /* Pointer to BitmapInstance structure for
- * for instance to be displayed. */
- Display *display; /* Display on which to draw image. */
- Drawable drawable; /* Pixmap or window in which to draw image. */
- int imageX, imageY; /* Upper-left corner of region within image
- * to draw. */
- int width, height; /* Dimensions of region within image to draw. */
- int drawableX, drawableY; /* Coordinates within drawable that
- * correspond to imageX and imageY. */
+ImgBmapDisplay(
+ ClientData clientData, /* Pointer to BitmapInstance structure for
+ * instance to be displayed. */
+ Display *display, /* Display on which to draw image. */
+ Drawable drawable, /* Pixmap or window in which to draw image. */
+ int imageX, int imageY, /* Upper-left corner of region within image to
+ * draw. */
+ int width, int height, /* Dimensions of region within image to draw. */
+ int drawableX, int drawableY)
+ /* Coordinates within drawable that correspond
+ * to imageX and imageY. */
{
BitmapInstance *instancePtr = (BitmapInstance *) clientData;
int masking;
/*
- * If there's no graphics context, it means that an error occurred
- * while creating the image instance so it can't be displayed.
+ * If there's no graphics context, it means that an error occurred while
+ * creating the image instance so it can't be displayed.
*/
if (instancePtr->gc == None) {
@@ -918,10 +896,9 @@ ImgBmapDisplay(clientData, display, drawable, imageX, imageY, width,
}
/*
- * If masking is in effect, must modify the mask origin within
- * the graphics context to line up with the image's origin.
- * Then draw the image and reset the clip origin, if there's
- * a mask.
+ * If masking is in effect, must modify the mask origin within the
+ * graphics context to line up with the image's origin. Then draw the
+ * image and reset the clip origin, if there's a mask.
*/
masking = (instancePtr->mask != None) || (instancePtr->bg == NULL);
@@ -942,8 +919,8 @@ ImgBmapDisplay(clientData, display, drawable, imageX, imageY, width,
*
* ImgBmapFree --
*
- * This procedure is called when a widget ceases to use a
- * particular instance of an image.
+ * This procedure is called when a widget ceases to use a particular
+ * instance of an image.
*
* Results:
* None.
@@ -955,10 +932,10 @@ ImgBmapDisplay(clientData, display, drawable, imageX, imageY, width,
*/
static void
-ImgBmapFree(clientData, display)
- ClientData clientData; /* Pointer to BitmapInstance structure for
- * for instance to be displayed. */
- Display *display; /* Display containing window that used image. */
+ImgBmapFree(
+ ClientData clientData, /* Pointer to BitmapInstance structure for
+ * instance to be displayed. */
+ Display *display) /* Display containing window that used image. */
{
BitmapInstance *instancePtr = (BitmapInstance *) clientData;
BitmapInstance *prevPtr;
@@ -969,8 +946,8 @@ ImgBmapFree(clientData, display)
}
/*
- * There are no more uses of the image within this widget. Free
- * the instance structure.
+ * There are no more uses of the image within this widget. Free the
+ * instance structure.
*/
if (instancePtr->fg != NULL) {
@@ -1005,8 +982,8 @@ ImgBmapFree(clientData, display)
*
* ImgBmapDelete --
*
- * This procedure is called by the image code to delete the
- * master structure for an image.
+ * This procedure is called by the image code to delete the master
+ * structure for an image.
*
* Results:
* None.
@@ -1018,9 +995,9 @@ ImgBmapFree(clientData, display)
*/
static void
-ImgBmapDelete(masterData)
- ClientData masterData; /* Pointer to BitmapMaster structure for
- * image. Must not have any more instances. */
+ImgBmapDelete(
+ ClientData masterData) /* Pointer to BitmapMaster structure for
+ * image. Must not have any more instances. */
{
BitmapMaster *masterPtr = (BitmapMaster *) masterData;
@@ -1037,7 +1014,7 @@ ImgBmapDelete(masterData)
if (masterPtr->maskData != NULL) {
ckfree(masterPtr->maskData);
}
- Tk_FreeOptions(configSpecs, (char *) masterPtr, (Display *) NULL, 0);
+ Tk_FreeOptions(configSpecs, (char *) masterPtr, NULL, 0);
ckfree((char *) masterPtr);
}
@@ -1046,8 +1023,8 @@ ImgBmapDelete(masterData)
*
* ImgBmapCmdDeletedProc --
*
- * This procedure is invoked when the image command for an image
- * is deleted. It deletes the image.
+ * This procedure is invoked when the image command for an image is
+ * deleted. It deletes the image.
*
* Results:
* None.
@@ -1059,8 +1036,8 @@ ImgBmapDelete(masterData)
*/
static void
-ImgBmapCmdDeletedProc(clientData)
- ClientData clientData; /* Pointer to BitmapMaster structure for
+ImgBmapCmdDeletedProc(
+ ClientData clientData) /* Pointer to BitmapMaster structure for
* image. */
{
BitmapMaster *masterPtr = (BitmapMaster *) clientData;
@@ -1088,8 +1065,8 @@ ImgBmapCmdDeletedProc(clientData)
*/
static int
-GetByte(chan)
- Tcl_Channel chan; /* The channel we read from. */
+GetByte(
+ Tcl_Channel chan) /* The channel we read from. */
{
char buffer;
int size;
@@ -1108,29 +1085,28 @@ GetByte(chan)
*
* ImgBmapPsImagemask --
*
- * This procedure generates postscript suitable for rendering a
- * single bitmap of an image. A single bitmap image might contain both
- * a foreground and a background bitmap. This routine is called once
- * for each such bitmap in a bitmap image.
+ * This procedure generates postscript suitable for rendering a single
+ * bitmap of an image. A single bitmap image might contain both a
+ * foreground and a background bitmap. This routine is called once for
+ * each such bitmap in a bitmap image.
*
- * Prior to invoking this routine, the following setup has occurred:
+ * Prior to invoking this routine, the following setup has occurred:
*
- * 1. The postscript foreground color has been set to the color
- * used to render the bitmap.
+ * 1. The postscript foreground color has been set to the color used
+ * to render the bitmap.
*
- * 2. The origin of the postscript coordinate system is set to
- * the lower left corner of the bitmap.
+ * 2. The origin of the postscript coordinate system is set to the
+ * lower left corner of the bitmap.
*
- * 3. The postscript coordinate system has been scaled so that
- * the entire bitmap is one unit squared.
+ * 3. The postscript coordinate system has been scaled so that the
+ * entire bitmap is one unit squared.
*
- * Some postscript implementations cannot handle bitmap strings
- * longer than about 60k characters. If the bitmap data is that big
- * or bigger, then we render it by splitting it into several smaller
- * bitmaps.
+ * Some postscript implementations cannot handle bitmap strings longer
+ * than about 60k characters. If the bitmap data is that big or bigger,
+ * then we render it by splitting it into several smaller bitmaps.
*
* Results:
- * Returns TCL_OK on success. Returns TCL_ERROR and leaves and error
+ * Returns TCL_OK on success. Returns TCL_ERROR and leaves and error
* message in interp->result if there is a problem.
*
* Side effects:
@@ -1140,21 +1116,22 @@ GetByte(chan)
*/
static int
-ImgBmapPsImagemask(interp, width, height, data)
- Tcl_Interp *interp; /* Append postscript to this interpreter */
- int width, height; /* Width and height of the bitmap in pixels */
- char *data; /* Data for the bitmap */
+ImgBmapPsImagemask(
+ Tcl_Interp *interp, /* Append postscript to this interpreter */
+ int width, int height, /* Width and height of the bitmap in pixels */
+ char *data) /* Data for the bitmap */
{
int i, j, nBytePerRow;
char buffer[200];
- /*
+ /*
* The bit order of bitmaps in Tk is the opposite of the bit order that
- * postscript uses. (In Tk, the least significant bit is on the right
- * side of the bitmap and in postscript the least significant bit is shown
- * on the left.) The following array is used to reverse the order of bits
+ * postscript uses. (In Tk, the least significant bit is on the right side
+ * of the bitmap and in postscript the least significant bit is shown on
+ * the left.) The following array is used to reverse the order of bits
* within a byte so that the bits will be in the order postscript expects.
*/
+
static unsigned char bit_reverse[] = {
0, 128, 64, 192, 32, 160, 96, 224, 16, 144, 80, 208, 48, 176, 112, 240,
8, 136, 72, 200, 40, 168, 104, 232, 24, 152, 88, 216, 56, 184, 120, 248,
@@ -1177,21 +1154,25 @@ ImgBmapPsImagemask(interp, width, height, data)
if (width*height > 60000) {
Tcl_ResetResult(interp);
Tcl_AppendResult(interp, "unable to generate postscript for bitmaps "
- "larger than 60000 pixels", 0);
+ "larger than 60000 pixels", NULL);
return TCL_ERROR;
}
+
sprintf(buffer, "0 0 moveto %d %d true [%d 0 0 %d 0 %d] {<\n",
- width, height, width, -height, height);
- Tcl_AppendResult(interp, buffer, 0);
+ width, height, width, -height, height);
+ Tcl_AppendResult(interp, buffer, NULL);
+
nBytePerRow = (width+7)/8;
for(i=0; i<height; i++){
- for(j=0; j<nBytePerRow; j++){
- sprintf(buffer, " %02x", bit_reverse[0xff & data[i*nBytePerRow + j]]);
- Tcl_AppendResult(interp, buffer, 0);
- }
- Tcl_AppendResult(interp, "\n", 0);
+ for(j=0; j<nBytePerRow; j++){
+ sprintf(buffer, " %02x",
+ bit_reverse[0xff & data[i*nBytePerRow + j]]);
+ Tcl_AppendResult(interp, buffer, NULL);
+ }
+ Tcl_AppendResult(interp, "\n", NULL);
}
- Tcl_AppendResult(interp, ">} imagemask \n", 0);
+
+ Tcl_AppendResult(interp, ">} imagemask \n", NULL);
return TCL_OK;
}
@@ -1203,9 +1184,10 @@ ImgBmapPsImagemask(interp, width, height, data)
* This procedure generates postscript for rendering a bitmap image.
*
* Results:
+
* On success, this routine writes postscript code into interp->result
- * and returns TCL_OK TCL_ERROR is returned and an error
- * message is left in interp->result if anything goes wrong.
+ * and returns TCL_OK TCL_ERROR is returned and an error message is left
+ * in interp->result if anything goes wrong.
*
* Side effects:
* None.
@@ -1214,13 +1196,13 @@ ImgBmapPsImagemask(interp, width, height, data)
*/
static int
-ImgBmapPostscript(clientData, interp, tkwin, psinfo, x, y, width, height,
- prepass)
- ClientData clientData;
- Tcl_Interp *interp;
- Tk_Window tkwin;
- Tk_PostscriptInfo psinfo;
- int x, y, width, height, prepass;
+ImgBmapPostscript(
+ ClientData clientData,
+ Tcl_Interp *interp,
+ Tk_Window tkwin,
+ Tk_PostscriptInfo psinfo,
+ int x, int y, int width, int height,
+ int prepass)
{
BitmapMaster *masterPtr = (BitmapMaster *) clientData;
char buffer[200];
@@ -1230,38 +1212,42 @@ ImgBmapPostscript(clientData, interp, tkwin, psinfo, x, y, width, height,
}
/*
- * There is nothing to do for bitmaps with zero width or height
+ * There is nothing to do for bitmaps with zero width or height.
*/
- if( width<=0 || height<=0 || masterPtr->width<=0 || masterPtr->height<=0 ){
+
+ if (width<=0 || height<=0 || masterPtr->width<=0 || masterPtr->height<= 0){
return TCL_OK;
}
/*
* Translate the origin of the coordinate system to be the lower-left
- * corner of the bitmap and adjust the scale of the coordinate system
- * so that entire bitmap covers one square unit of the page.
- * The calling function put a "gsave" into the postscript and
- * will add a "grestore" at after this routine returns, so it is safe
- * to make whatever changes are necessary here.
+ * corner of the bitmap and adjust the scale of the coordinate system so
+ * that entire bitmap covers one square unit of the page. The calling
+ * function put a "gsave" into the postscript and will add a "grestore" at
+ * after this routine returns, so it is safe to make whatever changes are
+ * necessary here.
*/
- if( x!=0 || y!=0 ){
+
+ if (x!=0 || y!=0) {
sprintf(buffer, "%d %d moveto\n", x, y);
Tcl_AppendResult(interp, buffer, 0);
}
- if( width!=1 || height!=1 ){
+ if (width!=1 || height!=1) {
sprintf(buffer, "%d %d scale\n", width, height);
Tcl_AppendResult(interp, buffer, 0);
}
/*
- * Color the background, if there is one. This step is skipped if the
- * background is transparent. If the background is not transparent and
+ * Color the background, if there is one. This step is skipped if the
+ * background is transparent. If the background is not transparent and
* there is no background mask, then color the complete rectangle that
- * encloses the bitmap. If there is a background mask, then only apply
+ * encloses the bitmap. If there is a background mask, then only apply
* color to the bits specified by the mask.
*/
+
if ((masterPtr->bgUid != NULL) && (masterPtr->bgUid[0] != '\000')) {
XColor color;
+
XParseColor(Tk_Display(tkwin), Tk_Colormap(tkwin), masterPtr->bgUid,
&color);
if (Tk_PostscriptColor(interp, psinfo, &color) != TCL_OK) {
@@ -1269,11 +1255,10 @@ ImgBmapPostscript(clientData, interp, tkwin, psinfo, x, y, width, height,
}
if (masterPtr->maskData == NULL) {
Tcl_AppendResult(interp,
- "0 0 moveto 1 0 rlineto 0 1 rlineto -1 0 rlineto "
- "closepath fill\n", 0
- );
+ "0 0 moveto 1 0 rlineto 0 1 rlineto -1 0 rlineto ",
+ "closepath fill\n", NULL);
} else if (ImgBmapPsImagemask(interp, masterPtr->width,
- masterPtr->height, masterPtr->maskData) != TCL_OK) {
+ masterPtr->height, masterPtr->maskData) != TCL_OK) {
return TCL_ERROR;
}
}
@@ -1281,8 +1266,10 @@ ImgBmapPostscript(clientData, interp, tkwin, psinfo, x, y, width, height,
/*
* Draw the bitmap foreground, assuming there is one.
*/
- if ( (masterPtr->fgUid != NULL) && (masterPtr->data != NULL) ) {
+
+ if ((masterPtr->fgUid != NULL) && (masterPtr->data != NULL)) {
XColor color;
+
XParseColor(Tk_Display(tkwin), Tk_Colormap(tkwin), masterPtr->fgUid,
&color);
if (Tk_PostscriptColor(interp, psinfo, &color) != TCL_OK) {
@@ -1295,3 +1282,11 @@ ImgBmapPostscript(clientData, interp, tkwin, psinfo, x, y, width, height,
}
return TCL_OK;
}
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * End:
+ */