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-rw-r--r--generic/tkCanvArc.c80
1 files changed, 32 insertions, 48 deletions
diff --git a/generic/tkCanvArc.c b/generic/tkCanvArc.c
index ab48720..1b9e4e9 100644
--- a/generic/tkCanvArc.c
+++ b/generic/tkCanvArc.c
@@ -4,12 +4,12 @@
* This file implements arc items for canvas widgets.
*
* Copyright (c) 1992-1994 The Regents of the University of California.
- * Copyright (c) 1994-1995 Sun Microsystems, Inc.
+ * Copyright (c) 1994-1997 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tkCanvArc.c,v 1.3 1998/09/14 18:23:04 stanton Exp $
+ * RCS: @(#) $Id: tkCanvArc.c,v 1.4 1999/04/16 01:51:11 stanton Exp $
*/
#include <stdio.h>
@@ -168,14 +168,6 @@ Tk_ItemType tkArcType = {
# define PI 3.14159265358979323846
#endif
-/*
- * The uid's below comprise the legal values for the "-style"
- * option for arcs.
- */
-
-static Tk_Uid arcUid = NULL;
-static Tk_Uid chordUid = NULL;
-static Tk_Uid pieSliceUid = NULL;
/*
*--------------------------------------------------------------
@@ -188,7 +180,7 @@ static Tk_Uid pieSliceUid = NULL;
* Results:
* A standard Tcl return value. If an error occurred in
* creating the item, then an error message is left in
- * interp->result; in this case itemPtr is
+ * the interp's result; in this case itemPtr is
* left uninitialized, so it can be safely freed by the
* caller.
*
@@ -218,16 +210,6 @@ CreateArc(interp, canvas, itemPtr, argc, argv)
}
/*
- * Carry out once-only initialization.
- */
-
- if (arcUid == NULL) {
- arcUid = Tk_GetUid("arc");
- chordUid = Tk_GetUid("chord");
- pieSliceUid = Tk_GetUid("pieslice");
- }
-
- /*
* Carry out initialization that is needed in order to clean
* up after errors during the the remainder of this procedure.
*/
@@ -241,7 +223,7 @@ CreateArc(interp, canvas, itemPtr, argc, argv)
arcPtr->fillColor = NULL;
arcPtr->fillStipple = None;
arcPtr->outlineStipple = None;
- arcPtr->style = pieSliceUid;
+ arcPtr->style = Tk_GetUid("pieslice");
arcPtr->outlineGC = None;
arcPtr->fillGC = None;
@@ -276,7 +258,7 @@ CreateArc(interp, canvas, itemPtr, argc, argv)
* on what it does.
*
* Results:
- * Returns TCL_OK or TCL_ERROR, and sets interp->result.
+ * Returns TCL_OK or TCL_ERROR, and sets the interp's result.
*
* Side effects:
* The coordinates for the given item may be changed.
@@ -319,9 +301,10 @@ ArcCoords(interp, canvas, itemPtr, argc, argv)
}
ComputeArcBbox(canvas, arcPtr);
} else {
- sprintf(interp->result,
- "wrong # coordinates: expected 0 or 4, got %d",
- argc);
+ char buf[64 + TCL_INTEGER_SPACE];
+
+ sprintf(buf, "wrong # coordinates: expected 0 or 4, got %d", argc);
+ Tcl_SetResult(interp, buf, TCL_VOLATILE);
return TCL_ERROR;
}
return TCL_OK;
@@ -337,7 +320,7 @@ ArcCoords(interp, canvas, itemPtr, argc, argv)
*
* Results:
* A standard Tcl result code. If an error occurs, then
- * an error message is left in interp->result.
+ * an error message is left in the interp's result.
*
* Side effects:
* Configuration information, such as colors and stipple
@@ -381,12 +364,13 @@ ConfigureArc(interp, canvas, itemPtr, argc, argv, flags)
i = (int) (arcPtr->extent/360.0);
arcPtr->extent -= i*360.0;
- if ((arcPtr->style != arcUid) && (arcPtr->style != chordUid)
- && (arcPtr->style != pieSliceUid)) {
+ if ((arcPtr->style != Tk_GetUid("arc"))
+ && (arcPtr->style != Tk_GetUid("chord"))
+ && (arcPtr->style != Tk_GetUid("pieslice"))) {
Tcl_AppendResult(interp, "bad -style option \"",
arcPtr->style, "\": must be arc, chord, or pieslice",
(char *) NULL);
- arcPtr->style = pieSliceUid;
+ arcPtr->style = Tk_GetUid("pieslice");
return TCL_ERROR;
}
@@ -412,11 +396,11 @@ ConfigureArc(interp, canvas, itemPtr, argc, argv, flags)
}
arcPtr->outlineGC = newGC;
- if ((arcPtr->fillColor == NULL) || (arcPtr->style == arcUid)) {
+ if ((arcPtr->fillColor == NULL) || (arcPtr->style == Tk_GetUid("arc"))) {
newGC = None;
} else {
gcValues.foreground = arcPtr->fillColor->pixel;
- if (arcPtr->style == chordUid) {
+ if (arcPtr->style == Tk_GetUid("chord")) {
gcValues.arc_mode = ArcChord;
} else {
gcValues.arc_mode = ArcPieSlice;
@@ -545,7 +529,7 @@ ComputeArcBbox(canvas, arcPtr)
TkIncludePoint((Tk_Item *) arcPtr, arcPtr->center2);
center[0] = (arcPtr->bbox[0] + arcPtr->bbox[2])/2;
center[1] = (arcPtr->bbox[1] + arcPtr->bbox[3])/2;
- if (arcPtr->style == pieSliceUid) {
+ if (arcPtr->style == Tk_GetUid("pieslice")) {
TkIncludePoint((Tk_Item *) arcPtr, center);
}
@@ -689,10 +673,10 @@ DisplayArc(canvas, itemPtr, display, drawable, x, y, width, height)
Tk_CanvasDrawableCoords(canvas, arcPtr->center2[0],
arcPtr->center2[1], &x2, &y2);
- if (arcPtr->style == chordUid) {
+ if (arcPtr->style == Tk_GetUid("chord")) {
XDrawLine(display, drawable, arcPtr->outlineGC,
x1, y1, x2, y2);
- } else if (arcPtr->style == pieSliceUid) {
+ } else if (arcPtr->style == Tk_GetUid("pieslice")) {
short cx, cy;
Tk_CanvasDrawableCoords(canvas,
@@ -704,10 +688,10 @@ DisplayArc(canvas, itemPtr, display, drawable, x, y, width, height)
cx, cy, x2, y2);
}
} else {
- if (arcPtr->style == chordUid) {
+ if (arcPtr->style == Tk_GetUid("chord")) {
TkFillPolygon(canvas, arcPtr->outlinePtr, CHORD_OUTLINE_PTS,
display, drawable, arcPtr->outlineGC, None);
- } else if (arcPtr->style == pieSliceUid) {
+ } else if (arcPtr->style == Tk_GetUid("pieslice")) {
TkFillPolygon(canvas, arcPtr->outlinePtr, PIE_OUTLINE1_PTS,
display, drawable, arcPtr->outlineGC, None);
TkFillPolygon(canvas, arcPtr->outlinePtr + 2*PIE_OUTLINE1_PTS,
@@ -785,7 +769,7 @@ ArcToPoint(canvas, itemPtr, pointPtr)
* we're dealing with.
*/
- if (arcPtr->style == arcUid) {
+ if (arcPtr->style == Tk_GetUid("arc")) {
if (angleInRange) {
return TkOvalToPoint(arcPtr->bbox, (double) arcPtr->width,
0, pointPtr);
@@ -811,7 +795,7 @@ ArcToPoint(canvas, itemPtr, pointPtr)
width = arcPtr->width;
}
- if (arcPtr->style == pieSliceUid) {
+ if (arcPtr->style == Tk_GetUid("pieslice")) {
if (width > 1.0) {
dist = TkPolygonToPoint(arcPtr->outlinePtr, PIE_OUTLINE1_PTS,
pointPtr);
@@ -966,7 +950,7 @@ ArcToArea(canvas, itemPtr, rectPtr)
numPoints = 2;
pointPtr += 4;
- if ((arcPtr->style == pieSliceUid) && (arcPtr->extent < 180.0)) {
+ if ((arcPtr->style == Tk_GetUid("pieslice")) && (arcPtr->extent < 180.0)) {
pointPtr[0] = 0.0;
pointPtr[1] = 0.0;
numPoints++;
@@ -1040,7 +1024,7 @@ ArcToArea(canvas, itemPtr, rectPtr)
* polygon(s) forming the sides of a chord or pie-slice.
*/
- if (arcPtr->style == pieSliceUid) {
+ if (arcPtr->style == Tk_GetUid("pieslice")) {
if (width >= 1.0) {
if (TkPolygonToArea(arcPtr->outlinePtr, PIE_OUTLINE1_PTS,
rectPtr) != -1) {
@@ -1056,7 +1040,7 @@ ArcToArea(canvas, itemPtr, rectPtr)
return 0;
}
}
- } else if (arcPtr->style == chordUid) {
+ } else if (arcPtr->style == Tk_GetUid("chord")) {
if (width >= 1.0) {
if (TkPolygonToArea(arcPtr->outlinePtr, CHORD_OUTLINE_PTS,
rectPtr) != -1) {
@@ -1307,7 +1291,7 @@ ComputeArcOutline(arcPtr)
* center point. The second point is the corner point.
*/
- if (arcPtr->style == chordUid) {
+ if (arcPtr->style == Tk_GetUid("chord")) {
outlinePtr[0] = outlinePtr[12] = corner1[0];
outlinePtr[1] = outlinePtr[13] = corner1[1];
TkGetButtPoints(arcPtr->center2, arcPtr->center1,
@@ -1322,7 +1306,7 @@ ComputeArcOutline(arcPtr)
- arcPtr->center1[0];
outlinePtr[9] = arcPtr->center2[1] + outlinePtr[11]
- arcPtr->center1[1];
- } else if (arcPtr->style == pieSliceUid) {
+ } else if (arcPtr->style == Tk_GetUid("pieslice")) {
/*
* For pie slices, generate two polygons, one for each side
* of the pie slice. The first arm has a shape like this,
@@ -1574,7 +1558,7 @@ AngleInRange(x, y, start, extent)
* Results:
* The return value is a standard Tcl result. If an error
* occurs in generating Postscript then an error message is
- * left in interp->result, replacing whatever used
+ * left in the interp's result, replacing whatever used
* to be there. If no error occurs, then Postscript for the
* item is appended to the result.
*
@@ -1618,7 +1602,7 @@ ArcToPostscript(interp, canvas, itemPtr, prepass)
(arcPtr->bbox[0] + arcPtr->bbox[2])/2, (y1 + y2)/2,
(arcPtr->bbox[2] - arcPtr->bbox[0])/2, (y1 - y2)/2);
Tcl_AppendResult(interp, buffer, (char *) NULL);
- if (arcPtr->style == chordUid) {
+ if (arcPtr->style == Tk_GetUid("chord")) {
sprintf(buffer, "0 0 1 %.15g %.15g arc closepath\nsetmatrix\n",
ang1, ang2);
} else {
@@ -1670,9 +1654,9 @@ ArcToPostscript(interp, canvas, itemPtr, prepass)
} else {
Tcl_AppendResult(interp, "stroke\n", (char *) NULL);
}
- if (arcPtr->style != arcUid) {
+ if (arcPtr->style != Tk_GetUid("arc")) {
Tcl_AppendResult(interp, "grestore gsave\n", (char *) NULL);
- if (arcPtr->style == chordUid) {
+ if (arcPtr->style == Tk_GetUid("chord")) {
Tk_CanvasPsPath(interp, canvas, arcPtr->outlinePtr,
CHORD_OUTLINE_PTS);
} else {
generated by cgit v0.12 at 2024-07-17 05:10:17 (GMT)