diff options
Diffstat (limited to 'generic/tkCanvText.c')
| -rw-r--r-- | generic/tkCanvText.c | 513 |
1 files changed, 326 insertions, 187 deletions
diff --git a/generic/tkCanvText.c b/generic/tkCanvText.c index 717184a..279e548 100644 --- a/generic/tkCanvText.c +++ b/generic/tkCanvText.c @@ -10,7 +10,6 @@ * this file, and for a DISCLAIMER OF ALL WARRANTIES. */ -#include <stdio.h> #include "tkInt.h" #include "tkCanvas.h" #include "default.h" @@ -55,6 +54,8 @@ typedef struct TextItem { * means no word-wrap. */ int underline; /* Index of character to put underline beneath * or -1 for no underlining. */ + double angle; /* What angle, in degrees, to draw the text + * at. */ /* * Fields whose values are derived from the current values of the @@ -64,70 +65,69 @@ typedef struct TextItem { int numChars; /* Length of text in characters. */ int numBytes; /* Length of text in bytes. */ Tk_TextLayout textLayout; /* Cached text layout information. */ - int leftEdge; /* Pixel location of the left edge of the text - * item; where the left border of the text - * layout is drawn. */ - int rightEdge; /* Pixel just to right of right edge of area - * of text item. Used for selecting up to end - * of line. */ + int actualWidth; /* Width of text as computed. Used to make + * selections of wrapped text display + * right. */ + double drawOrigin[2]; /* Where we start drawing from. */ GC gc; /* Graphics context for drawing text. */ GC selTextGC; /* Graphics context for selected text. */ GC cursorOffGC; /* If not None, this gives a graphics context * to use to draw the insertion cursor when * it's off. Used if the selection and * insertion cursor colors are the same. */ + double sine; /* Sine of angle field. */ + double cosine; /* Cosine of angle field. */ } TextItem; /* * Information used for parsing configuration specs: */ -static Tk_CustomOption stateOption = { - (Tk_OptionParseProc *) TkStateParseProc, - TkStatePrintProc, (ClientData) 2 +static const Tk_CustomOption stateOption = { + TkStateParseProc, TkStatePrintProc, INT2PTR(2) }; -static Tk_CustomOption tagsOption = { - (Tk_OptionParseProc *) Tk_CanvasTagsParseProc, - Tk_CanvasTagsPrintProc, (ClientData) NULL +static const Tk_CustomOption tagsOption = { + Tk_CanvasTagsParseProc, Tk_CanvasTagsPrintProc, NULL }; -static Tk_CustomOption offsetOption = { - (Tk_OptionParseProc *) TkOffsetParseProc, - TkOffsetPrintProc, (ClientData) (TK_OFFSET_RELATIVE) +static const Tk_CustomOption offsetOption = { + TkOffsetParseProc, TkOffsetPrintProc, INT2PTR(TK_OFFSET_RELATIVE) }; -static Tk_ConfigSpec configSpecs[] = { +static const Tk_ConfigSpec configSpecs[] = { {TK_CONFIG_COLOR, "-activefill", NULL, NULL, - NULL, Tk_Offset(TextItem, activeColor), TK_CONFIG_NULL_OK}, + NULL, Tk_Offset(TextItem, activeColor), TK_CONFIG_NULL_OK, NULL}, {TK_CONFIG_BITMAP, "-activestipple", NULL, NULL, - NULL, Tk_Offset(TextItem, activeStipple), TK_CONFIG_NULL_OK}, + NULL, Tk_Offset(TextItem, activeStipple), TK_CONFIG_NULL_OK, NULL}, {TK_CONFIG_ANCHOR, "-anchor", NULL, NULL, - "center", Tk_Offset(TextItem, anchor), TK_CONFIG_DONT_SET_DEFAULT}, + "center", Tk_Offset(TextItem, anchor), TK_CONFIG_DONT_SET_DEFAULT, NULL}, + {TK_CONFIG_DOUBLE, "-angle", NULL, NULL, + "0.0", Tk_Offset(TextItem, angle), TK_CONFIG_DONT_SET_DEFAULT, NULL}, {TK_CONFIG_COLOR, "-disabledfill", NULL, NULL, - NULL, Tk_Offset(TextItem, disabledColor), TK_CONFIG_NULL_OK}, + NULL, Tk_Offset(TextItem, disabledColor), TK_CONFIG_NULL_OK, NULL}, {TK_CONFIG_BITMAP, "-disabledstipple", NULL, NULL, - NULL, Tk_Offset(TextItem, disabledStipple), TK_CONFIG_NULL_OK}, + NULL, Tk_Offset(TextItem, disabledStipple), TK_CONFIG_NULL_OK, NULL}, {TK_CONFIG_COLOR, "-fill", NULL, NULL, - "black", Tk_Offset(TextItem, color), TK_CONFIG_NULL_OK}, + "black", Tk_Offset(TextItem, color), TK_CONFIG_NULL_OK, NULL}, {TK_CONFIG_FONT, "-font", NULL, NULL, - DEF_CANVTEXT_FONT, Tk_Offset(TextItem, tkfont), 0}, + DEF_CANVTEXT_FONT, Tk_Offset(TextItem, tkfont), 0, NULL}, {TK_CONFIG_JUSTIFY, "-justify", NULL, NULL, - "left", Tk_Offset(TextItem, justify), TK_CONFIG_DONT_SET_DEFAULT}, + "left", Tk_Offset(TextItem, justify), TK_CONFIG_DONT_SET_DEFAULT, NULL}, {TK_CONFIG_CUSTOM, "-offset", NULL, NULL, "0,0", Tk_Offset(TextItem, tsoffset), TK_CONFIG_DONT_SET_DEFAULT, &offsetOption}, {TK_CONFIG_CUSTOM, "-state", NULL, NULL, NULL, Tk_Offset(Tk_Item, state), TK_CONFIG_NULL_OK, &stateOption}, {TK_CONFIG_BITMAP, "-stipple", NULL, NULL, - NULL, Tk_Offset(TextItem, stipple), TK_CONFIG_NULL_OK}, + NULL, Tk_Offset(TextItem, stipple), TK_CONFIG_NULL_OK, NULL}, {TK_CONFIG_CUSTOM, "-tags", NULL, NULL, NULL, 0, TK_CONFIG_NULL_OK, &tagsOption}, {TK_CONFIG_STRING, "-text", NULL, NULL, - "", Tk_Offset(TextItem, text), 0}, + "", Tk_Offset(TextItem, text), 0, NULL}, {TK_CONFIG_INT, "-underline", NULL, NULL, - "-1", Tk_Offset(TextItem, underline), 0}, + "-1", Tk_Offset(TextItem, underline), 0, NULL}, {TK_CONFIG_PIXELS, "-width", NULL, NULL, - "0", Tk_Offset(TextItem, width), TK_CONFIG_DONT_SET_DEFAULT}, - {TK_CONFIG_END, NULL, NULL, NULL, NULL, 0, 0} + "0", Tk_Offset(TextItem, width), TK_CONFIG_DONT_SET_DEFAULT, NULL}, + {TK_CONFIG_END, NULL, NULL, NULL, NULL, 0, 0, NULL} }; /* @@ -137,10 +137,10 @@ static Tk_ConfigSpec configSpecs[] = { static void ComputeTextBbox(Tk_Canvas canvas, TextItem *textPtr); static int ConfigureText(Tcl_Interp *interp, Tk_Canvas canvas, Tk_Item *itemPtr, int argc, - Tcl_Obj *CONST objv[], int flags); + Tcl_Obj *const objv[], int flags); static int CreateText(Tcl_Interp *interp, Tk_Canvas canvas, struct Tk_Item *itemPtr, - int argc, Tcl_Obj *CONST objv[]); + int argc, Tcl_Obj *const objv[]); static void DeleteText(Tk_Canvas canvas, Tk_Item *itemPtr, Display *display); static void DisplayCanvText(Tk_Canvas canvas, @@ -159,11 +159,11 @@ static void SetTextCursor(Tk_Canvas canvas, Tk_Item *itemPtr, int index); static int TextCoords(Tcl_Interp *interp, Tk_Canvas canvas, Tk_Item *itemPtr, - int argc, Tcl_Obj *CONST objv[]); + int argc, Tcl_Obj *const objv[]); static void TextDeleteChars(Tk_Canvas canvas, Tk_Item *itemPtr, int first, int last); static void TextInsert(Tk_Canvas canvas, - Tk_Item *itemPtr, int beforeThis, char *string); + Tk_Item *itemPtr, int beforeThis, Tcl_Obj *obj); static int TextToArea(Tk_Canvas canvas, Tk_Item *itemPtr, double *rectPtr); static double TextToPoint(Tk_Canvas canvas, @@ -193,13 +193,16 @@ Tk_ItemType tkTextType = { TextToPostscript, /* postscriptProc */ ScaleText, /* scaleProc */ TranslateText, /* translateProc */ - (Tk_ItemIndexProc *) GetTextIndex,/* indexProc */ + GetTextIndex, /* indexProc */ SetTextCursor, /* icursorProc */ GetSelText, /* selectionProc */ TextInsert, /* insertProc */ TextDeleteChars, /* dTextProc */ NULL, /* nextPtr */ + NULL, 0, NULL, NULL }; + +#define ROUND(d) ((int) floor((d) + 0.5)) /* *-------------------------------------------------------------- @@ -226,13 +229,13 @@ CreateText( Tk_Item *itemPtr, /* Record to hold new item; header has been * initialized by caller. */ int objc, /* Number of arguments in objv. */ - Tcl_Obj *CONST objv[]) /* Arguments describing rectangle. */ + Tcl_Obj *const objv[]) /* Arguments describing rectangle. */ { TextItem *textPtr = (TextItem *) itemPtr; int i; if (objc == 0) { - Tcl_Panic("canvas did not pass any coords\n"); + Tcl_Panic("canvas did not pass any coords"); } /* @@ -259,15 +262,18 @@ CreateText( textPtr->text = NULL; textPtr->width = 0; textPtr->underline = -1; + textPtr->angle = 0.0; textPtr->numChars = 0; textPtr->numBytes = 0; textPtr->textLayout = NULL; - textPtr->leftEdge = 0; - textPtr->rightEdge = 0; + textPtr->actualWidth = 0; + textPtr->drawOrigin[0] = textPtr->drawOrigin[1] = 0.0; textPtr->gc = NULL; textPtr->selTextGC = NULL; textPtr->cursorOffGC = NULL; + textPtr->sine = 0.0; + textPtr->cosine = 1.0; /* * Process the arguments to fill in the item record. Only 1 (list) or 2 (x @@ -277,7 +283,7 @@ CreateText( if (objc == 1) { i = 1; } else { - char *arg = Tcl_GetString(objv[1]); + const char *arg = Tcl_GetString(objv[1]); i = 2; if ((arg[0] == '-') && (arg[1] >= 'a') && (arg[1] <= 'z')) { @@ -320,45 +326,44 @@ TextCoords( Tk_Item *itemPtr, /* Item whose coordinates are to be read or * modified. */ int objc, /* Number of coordinates supplied in objv. */ - Tcl_Obj *CONST objv[]) /* Array of coordinates: x1, y1, x2, y2, ... */ + Tcl_Obj *const objv[]) /* Array of coordinates: x1, y1, x2, y2, ... */ { TextItem *textPtr = (TextItem *) itemPtr; if (objc == 0) { Tcl_Obj *obj = Tcl_NewObj(); - Tcl_Obj *subobj = Tcl_NewDoubleObj(textPtr->x); + Tcl_ListObjAppendElement(interp, obj, subobj); subobj = Tcl_NewDoubleObj(textPtr->y); Tcl_ListObjAppendElement(interp, obj, subobj); Tcl_SetObjResult(interp, obj); - } else if (objc < 3) { - if (objc==1) { - if (Tcl_ListObjGetElements(interp, objv[0], &objc, - (Tcl_Obj ***) &objv) != TCL_OK) { - return TCL_ERROR; - } else if (objc != 2) { - char buf[64 + TCL_INTEGER_SPACE]; - - sprintf(buf, "wrong # coordinates: expected 2, got %d", objc); - Tcl_SetResult(interp, buf, TCL_VOLATILE); - return TCL_ERROR; - } - } - if ((Tk_CanvasGetCoordFromObj(interp, canvas, objv[0], - &textPtr->x) != TCL_OK) - || (Tk_CanvasGetCoordFromObj(interp, canvas, objv[1], - &textPtr->y) != TCL_OK)) { + return TCL_OK; + } else if (objc > 2) { + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "wrong # coordinates: expected 0 or 2, got %d", objc)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "COORDS", "TEXT", NULL); + return TCL_ERROR; + } + + if (objc == 1) { + if (Tcl_ListObjGetElements(interp, objv[0], &objc, + (Tcl_Obj ***) &objv) != TCL_OK) { + return TCL_ERROR; + } else if (objc != 2) { + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "wrong # coordinates: expected 2, got %d", objc)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "COORDS", "TEXT", NULL); return TCL_ERROR; } - ComputeTextBbox(canvas, textPtr); - } else { - char buf[64 + TCL_INTEGER_SPACE]; - - sprintf(buf, "wrong # coordinates: expected 0 or 2, got %d", objc); - Tcl_SetResult(interp, buf, TCL_VOLATILE); + } + if ((Tk_CanvasGetCoordFromObj(interp, canvas, objv[0], + &textPtr->x) != TCL_OK) + || (Tk_CanvasGetCoordFromObj(interp, canvas, objv[1], + &textPtr->y) != TCL_OK)) { return TCL_ERROR; } + ComputeTextBbox(canvas, textPtr); return TCL_OK; } @@ -387,7 +392,7 @@ ConfigureText( Tk_Canvas canvas, /* Canvas containing itemPtr. */ Tk_Item *itemPtr, /* Rectangle item to reconfigure. */ int objc, /* Number of elements in objv. */ - Tcl_Obj *CONST objv[], /* Arguments describing things to configure. */ + Tcl_Obj *const objv[], /* Arguments describing things to configure. */ int flags) /* Flags to pass to Tk_ConfigureWidget. */ { TextItem *textPtr = (TextItem *) itemPtr; @@ -403,7 +408,7 @@ ConfigureText( tkwin = Tk_CanvasTkwin(canvas); if (TCL_OK != Tk_ConfigureWidget(interp, tkwin, configSpecs, objc, - (CONST char **) objv, (char *) textPtr, flags|TK_CONFIG_OBJS)) { + (const char **) objv, (char *) textPtr, flags|TK_CONFIG_OBJS)) { return TCL_ERROR; } @@ -420,24 +425,24 @@ ConfigureText( itemPtr->redraw_flags &= ~TK_ITEM_STATE_DEPENDANT; } - if(state == TK_STATE_NULL) { - state = ((TkCanvas *)canvas)->canvas_state; + if (state == TK_STATE_NULL) { + state = Canvas(canvas)->canvas_state; } color = textPtr->color; stipple = textPtr->stipple; - if (((TkCanvas *)canvas)->currentItemPtr == itemPtr) { - if (textPtr->activeColor!=NULL) { + if (Canvas(canvas)->currentItemPtr == itemPtr) { + if (textPtr->activeColor != NULL) { color = textPtr->activeColor; } - if (textPtr->activeStipple!=None) { + if (textPtr->activeStipple != None) { stipple = textPtr->activeStipple; } - } else if (state==TK_STATE_DISABLED) { - if (textPtr->disabledColor!=NULL) { + } else if (state == TK_STATE_DISABLED) { + if (textPtr->disabledColor != NULL) { color = textPtr->disabledColor; } - if (textPtr->disabledStipple!=None) { + if (textPtr->disabledStipple != None) { stipple = textPtr->disabledStipple; } } @@ -493,7 +498,6 @@ ConfigureText( } textPtr->cursorOffGC = newGC; - /* * If the text was changed, move the selection and insertion indices to * keep them inside the item. @@ -519,6 +523,22 @@ ConfigureText( textPtr->insertPos = textPtr->numChars; } + /* + * Restrict so that 0.0 <= angle < 360.0, and then recompute the cached + * sine and cosine of the angle. Note that fmod() can produce negative + * results, and we try to avoid negative zero as well. + */ + + textPtr->angle = fmod(textPtr->angle, 360.0); + if (textPtr->angle < 0.0) { + textPtr->angle += 360.0; + } + if (textPtr->angle == 0.0) { + textPtr->angle = 0.0; + } + textPtr->sine = sin(textPtr->angle * PI/180.0); + textPtr->cosine = cos(textPtr->angle * PI/180.0); + ComputeTextBbox(canvas, textPtr); return TCL_OK; } @@ -609,11 +629,12 @@ ComputeTextBbox( TextItem *textPtr) /* Item whose bbox is to be recomputed. */ { Tk_CanvasTextInfo *textInfoPtr; - int leftX, topY, width, height, fudge; + int leftX, topY, width, height, fudge, i; Tk_State state = textPtr->header.state; + double x[4], y[4], dx[4], dy[4], sinA, cosA, tmp; - if(state == TK_STATE_NULL) { - state = ((TkCanvas *)canvas)->canvas_state; + if (state == TK_STATE_NULL) { + state = Canvas(canvas)->canvas_state; } Tk_FreeTextLayout(textPtr->textLayout); @@ -630,8 +651,11 @@ ComputeTextBbox( * bounding box for the text item. */ - leftX = (int) floor(textPtr->x + 0.5); - topY = (int) floor(textPtr->y + 0.5); + leftX = ROUND(textPtr->x); + topY = ROUND(textPtr->y); + for (i=0 ; i<4 ; i++) { + dx[i] = dy[i] = 0.0; + } switch (textPtr->anchor) { case TK_ANCHOR_NW: case TK_ANCHOR_N: @@ -642,12 +666,18 @@ ComputeTextBbox( case TK_ANCHOR_CENTER: case TK_ANCHOR_E: topY -= height / 2; + for (i=0 ; i<4 ; i++) { + dy[i] = -height / 2; + } break; case TK_ANCHOR_SW: case TK_ANCHOR_S: case TK_ANCHOR_SE: topY -= height; + for (i=0 ; i<4 ; i++) { + dy[i] = -height; + } break; } switch (textPtr->anchor) { @@ -660,17 +690,27 @@ ComputeTextBbox( case TK_ANCHOR_CENTER: case TK_ANCHOR_S: leftX -= width / 2; + for (i=0 ; i<4 ; i++) { + dx[i] = -width / 2; + } break; case TK_ANCHOR_NE: case TK_ANCHOR_E: case TK_ANCHOR_SE: leftX -= width; + for (i=0 ; i<4 ; i++) { + dx[i] = -width; + } break; } - textPtr->leftEdge = leftX; - textPtr->rightEdge = leftX + width; + textPtr->actualWidth = width; + + sinA = textPtr->sine; + cosA = textPtr->cosine; + textPtr->drawOrigin[0] = textPtr->x + dx[0]*cosA + dy[0]*sinA; + textPtr->drawOrigin[1] = textPtr->y + dy[0]*cosA - dx[0]*sinA; /* * Last of all, update the bounding box for the item. The item's bounding @@ -683,10 +723,50 @@ ComputeTextBbox( if (textInfoPtr->selBorderWidth > fudge) { fudge = textInfoPtr->selBorderWidth; } - textPtr->header.x1 = leftX - fudge; - textPtr->header.y1 = topY; - textPtr->header.x2 = leftX + width + fudge; - textPtr->header.y2 = topY + height; + + /* + * Apply the rotation before computing the bounding box. + */ + + dx[0] -= fudge; + dx[1] += width + fudge; + dx[2] += width + fudge; + dy[2] += height; + dx[3] -= fudge; + dy[3] += height; + for (i=0 ; i<4 ; i++) { + x[i] = textPtr->x + dx[i] * cosA + dy[i] * sinA; + y[i] = textPtr->y + dy[i] * cosA - dx[i] * sinA; + } + + /* + * Convert to a rectilinear bounding box. + */ + + for (i=1,tmp=x[0] ; i<4 ; i++) { + if (x[i] < tmp) { + tmp = x[i]; + } + } + textPtr->header.x1 = ROUND(tmp); + for (i=1,tmp=y[0] ; i<4 ; i++) { + if (y[i] < tmp) { + tmp = y[i]; + } + } + textPtr->header.y1 = ROUND(tmp); + for (i=1,tmp=x[0] ; i<4 ; i++) { + if (x[i] > tmp) { + tmp = x[i]; + } + } + textPtr->header.x2 = ROUND(tmp); + for (i=1,tmp=y[0] ; i<4 ; i++) { + if (y[i] > tmp) { + tmp = y[i]; + } + } + textPtr->header.y2 = ROUND(tmp); } /* @@ -726,16 +806,16 @@ DisplayCanvText( textPtr = (TextItem *) itemPtr; textInfoPtr = textPtr->textInfoPtr; - if(state == TK_STATE_NULL) { - state = ((TkCanvas *)canvas)->canvas_state; + if (state == TK_STATE_NULL) { + state = Canvas(canvas)->canvas_state; } stipple = textPtr->stipple; - if (((TkCanvas *)canvas)->currentItemPtr == itemPtr) { - if (textPtr->activeStipple!=None) { + if (Canvas(canvas)->currentItemPtr == itemPtr) { + if (textPtr->activeStipple != None) { stipple = textPtr->activeStipple; } - } else if (state==TK_STATE_DISABLED) { - if (textPtr->disabledStipple!=None) { + } else if (state == TK_STATE_DISABLED) { + if (textPtr->disabledStipple != None) { stipple = textPtr->disabledStipple; } } @@ -756,6 +836,8 @@ DisplayCanvText( selFirstChar = -1; selLastChar = 0; /* lint. */ + Tk_CanvasDrawableCoords(canvas, textPtr->drawOrigin[0], + textPtr->drawOrigin[1], &drawableX, &drawableY); if (textInfoPtr->selItemPtr == itemPtr) { selFirstChar = textInfoPtr->selectFirst; @@ -786,20 +868,30 @@ DisplayCanvText( x = xFirst; height = hFirst; for (y = yFirst ; y <= yLast; y += height) { + int dx1, dy1, dx2, dy2; + double s = textPtr->sine, c = textPtr->cosine; + XPoint points[4]; + if (y == yLast) { width = xLast + wLast - x; } else { - width = textPtr->rightEdge - textPtr->leftEdge - x; + width = textPtr->actualWidth - x; } - Tk_CanvasDrawableCoords(canvas, - (double) (textPtr->leftEdge + x - - textInfoPtr->selBorderWidth), - (double) (textPtr->header.y1 + y), - &drawableX, &drawableY); - Tk_Fill3DRectangle(Tk_CanvasTkwin(canvas), drawable, - textInfoPtr->selBorder, drawableX, drawableY, - width + 2 * textInfoPtr->selBorderWidth, - height, textInfoPtr->selBorderWidth, TK_RELIEF_RAISED); + dx1 = x - textInfoPtr->selBorderWidth; + dy1 = y; + dx2 = width + 2 * textInfoPtr->selBorderWidth; + dy2 = height; + points[0].x = (short)(drawableX + dx1*c + dy1*s); + points[0].y = (short)(drawableY + dy1*c - dx1*s); + points[1].x = (short)(drawableX + (dx1+dx2)*c + dy1*s); + points[1].y = (short)(drawableY + dy1*c - (dx1+dx2)*s); + points[2].x = (short)(drawableX + (dx1+dx2)*c + (dy1+dy2)*s); + points[2].y = (short)(drawableY + (dy1+dy2)*c - (dx1+dx2)*s); + points[3].x = (short)(drawableX + dx1*c + (dy1+dy2)*s); + points[3].y = (short)(drawableY + (dy1+dy2)*c - dx1*s); + Tk_Fill3DPolygon(Tk_CanvasTkwin(canvas), drawable, + textInfoPtr->selBorder, points, 4, + textInfoPtr->selBorderWidth, TK_RELIEF_RAISED); x = 0; } } @@ -817,18 +909,28 @@ DisplayCanvText( if ((textInfoPtr->focusItemPtr == itemPtr) && (textInfoPtr->gotFocus)) { if (Tk_CharBbox(textPtr->textLayout, textPtr->insertPos, &x, &y, NULL, &height)) { - Tk_CanvasDrawableCoords(canvas, - (double) (textPtr->leftEdge + x - - (textInfoPtr->insertWidth / 2)), - (double) (textPtr->header.y1 + y), - &drawableX, &drawableY); - Tk_SetCaretPos(Tk_CanvasTkwin(canvas), drawableX, drawableY, + int dx1, dy1, dx2, dy2; + double s = textPtr->sine, c = textPtr->cosine; + XPoint points[4]; + + dx1 = x - (textInfoPtr->insertWidth / 2); + dy1 = y; + dx2 = textInfoPtr->insertWidth; + dy2 = height; + points[0].x = (short)(drawableX + dx1*c + dy1*s); + points[0].y = (short)(drawableY + dy1*c - dx1*s); + points[1].x = (short)(drawableX + (dx1+dx2)*c + dy1*s); + points[1].y = (short)(drawableY + dy1*c - (dx1+dx2)*s); + points[2].x = (short)(drawableX + (dx1+dx2)*c + (dy1+dy2)*s); + points[2].y = (short)(drawableY + (dy1+dy2)*c - (dx1+dx2)*s); + points[3].x = (short)(drawableX + dx1*c + (dy1+dy2)*s); + points[3].y = (short)(drawableY + (dy1+dy2)*c - dx1*s); + + Tk_SetCaretPos(Tk_CanvasTkwin(canvas), points[0].x, points[0].y, height); if (textInfoPtr->cursorOn) { - Tk_Fill3DRectangle(Tk_CanvasTkwin(canvas), drawable, - textInfoPtr->insertBorder, - drawableX, drawableY, - textInfoPtr->insertWidth, height, + Tk_Fill3DPolygon(Tk_CanvasTkwin(canvas), drawable, + textInfoPtr->insertBorder, points, 4, textInfoPtr->insertBorderWidth, TK_RELIEF_RAISED); } else if (textPtr->cursorOffGC != NULL) { /* @@ -838,10 +940,8 @@ DisplayCanvText( * where both may be drawn in the same color. */ - XFillRectangle(display, drawable, textPtr->cursorOffGC, - drawableX, drawableY, - (unsigned) textInfoPtr->insertWidth, - (unsigned) height); + XFillPolygon(display, drawable, textPtr->cursorOffGC, + points, 4, Convex, CoordModeOrigin); } } } @@ -856,23 +956,24 @@ DisplayCanvText( * anti-aliasing colors would blend together. */ - Tk_CanvasDrawableCoords(canvas, (double) textPtr->leftEdge, - (double) textPtr->header.y1, &drawableX, &drawableY); - if ((selFirstChar >= 0) && (textPtr->selTextGC != textPtr->gc)) { - Tk_DrawTextLayout(display, drawable, textPtr->gc, textPtr->textLayout, - drawableX, drawableY, 0, selFirstChar); - Tk_DrawTextLayout(display, drawable, textPtr->selTextGC, - textPtr->textLayout, drawableX, drawableY, selFirstChar, - selLastChar + 1); - Tk_DrawTextLayout(display, drawable, textPtr->gc, textPtr->textLayout, - drawableX, drawableY, selLastChar + 1, -1); + TkDrawAngledTextLayout(display, drawable, textPtr->gc, + textPtr->textLayout, drawableX, drawableY, textPtr->angle, + 0, selFirstChar); + TkDrawAngledTextLayout(display, drawable, textPtr->selTextGC, + textPtr->textLayout, drawableX, drawableY, textPtr->angle, + selFirstChar, selLastChar + 1); + TkDrawAngledTextLayout(display, drawable, textPtr->gc, + textPtr->textLayout, drawableX, drawableY, textPtr->angle, + selLastChar + 1, -1); } else { - Tk_DrawTextLayout(display, drawable, textPtr->gc, textPtr->textLayout, - drawableX, drawableY, 0, -1); + TkDrawAngledTextLayout(display, drawable, textPtr->gc, + textPtr->textLayout, drawableX, drawableY, textPtr->angle, + 0, -1); } - Tk_UnderlineTextLayout(display, drawable, textPtr->gc, textPtr->textLayout, - drawableX, drawableY, textPtr->underline); + TkUnderlineAngledTextLayout(display, drawable, textPtr->gc, + textPtr->textLayout, drawableX, drawableY, textPtr->angle, + textPtr->underline); if (stipple != None) { XSetTSOrigin(display, textPtr->gc, 0, 0); @@ -880,7 +981,7 @@ DisplayCanvText( } /* - *-------------------------------------------------------------- + *---------------------------------------------------------------------- * * TextInsert -- * @@ -893,7 +994,7 @@ DisplayCanvText( * The text in the given item is modified. The cursor and selection * positions are also modified to reflect the insertion. * - *-------------------------------------------------------------- + *---------------------------------------------------------------------- */ static void @@ -902,14 +1003,15 @@ TextInsert( Tk_Item *itemPtr, /* Text item to be modified. */ int index, /* Character index before which string is to * be inserted. */ - char *string) /* New characters to be inserted. */ + Tcl_Obj *obj) /* New characters to be inserted. */ { TextItem *textPtr = (TextItem *) itemPtr; int byteIndex, byteCount, charsAdded; char *newStr, *text; + const char *string; Tk_CanvasTextInfo *textInfoPtr = textPtr->textInfoPtr; - string = Tcl_GetStringFromObj((Tcl_Obj *) string, &byteCount); + string = Tcl_GetStringFromObj(obj, &byteCount); text = textPtr->text; @@ -925,7 +1027,7 @@ TextInsert( return; } - newStr = (char *) ckalloc((unsigned) textPtr->numBytes + byteCount + 1); + newStr = ckalloc(textPtr->numBytes + byteCount + 1); memcpy(newStr, text, (size_t) byteIndex); strcpy(newStr + byteIndex, string); strcpy(newStr + byteIndex + byteCount, text + byteIndex); @@ -1006,7 +1108,7 @@ TextDeleteChars( byteCount = Tcl_UtfAtIndex(text + byteIndex, charsRemoved) - (text + byteIndex); - newStr = (char *) ckalloc((unsigned) (textPtr->numBytes + 1 - byteCount)); + newStr = ckalloc(textPtr->numBytes + 1 - byteCount); memcpy(newStr, text, (size_t) byteIndex); strcpy(newStr + byteIndex, text + byteIndex + byteCount); @@ -1082,15 +1184,17 @@ TextToPoint( { TextItem *textPtr; Tk_State state = itemPtr->state; - double value; + double value, px, py; if (state == TK_STATE_NULL) { - state = ((TkCanvas *)canvas)->canvas_state; + state = Canvas(canvas)->canvas_state; } textPtr = (TextItem *) itemPtr; + px = pointPtr[0] - textPtr->drawOrigin[0]; + py = pointPtr[1] - textPtr->drawOrigin[1]; value = (double) Tk_DistanceToTextLayout(textPtr->textLayout, - (int) pointPtr[0] - textPtr->leftEdge, - (int) pointPtr[1] - textPtr->header.y1); + (int) (px*textPtr->cosine - py*textPtr->sine), + (int) (py*textPtr->cosine + px*textPtr->sine)); if ((state == TK_STATE_HIDDEN) || (textPtr->color == NULL) || (textPtr->text == NULL) || (*textPtr->text == 0)) { @@ -1130,15 +1234,16 @@ TextToArea( Tk_State state = itemPtr->state; if (state == TK_STATE_NULL) { - state = ((TkCanvas *)canvas)->canvas_state; + state = Canvas(canvas)->canvas_state; } textPtr = (TextItem *) itemPtr; - return Tk_IntersectTextLayout(textPtr->textLayout, - (int) (rectPtr[0] + 0.5) - textPtr->leftEdge, - (int) (rectPtr[1] + 0.5) - textPtr->header.y1, + return TkIntersectAngledTextLayout(textPtr->textLayout, + (int) ((rectPtr[0] + 0.5) - textPtr->drawOrigin[0]), + (int) ((rectPtr[1] + 0.5) - textPtr->drawOrigin[1]), (int) (rectPtr[2] - rectPtr[0] + 0.5), - (int) (rectPtr[3] - rectPtr[1] + 0.5)); + (int) (rectPtr[3] - rectPtr[1] + 0.5), + textPtr->angle); } /* @@ -1242,7 +1347,7 @@ GetTextIndex( int c; TkCanvas *canvasPtr = (TkCanvas *) canvas; Tk_CanvasTextInfo *textInfoPtr = textPtr->textInfoPtr; - char *string = Tcl_GetStringFromObj(obj, &length); + const char *string = Tcl_GetStringFromObj(obj, &length); c = string[0]; @@ -1254,21 +1359,26 @@ GetTextIndex( } else if ((c == 's') && (length >= 5) && (strncmp(string, "sel.first", (unsigned) length) == 0)) { if (textInfoPtr->selItemPtr != itemPtr) { - Tcl_SetResult(interp, "selection isn't in item", TCL_STATIC); + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "selection isn't in item", -1)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "UNSELECTED", NULL); return TCL_ERROR; } *indexPtr = textInfoPtr->selectFirst; } else if ((c == 's') && (length >= 5) && (strncmp(string, "sel.last", (unsigned) length) == 0)) { if (textInfoPtr->selItemPtr != itemPtr) { - Tcl_SetResult(interp, "selection isn't in item", TCL_STATIC); + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "selection isn't in item", -1)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "UNSELECTED", NULL); return TCL_ERROR; } *indexPtr = textInfoPtr->selectLast; } else if (c == '@') { int x, y; - double tmp; - char *end, *p; + double tmp, c = textPtr->cosine, s = textPtr->sine; + char *end; + const char *p; p = string+1; tmp = strtod(p, &end); @@ -1282,11 +1392,12 @@ GetTextIndex( goto badIndex; } y = (int) ((tmp < 0) ? tmp - 0.5 : tmp + 0.5); + x += canvasPtr->scrollX1 - (int) textPtr->drawOrigin[0]; + y += canvasPtr->scrollY1 - (int) textPtr->drawOrigin[1]; *indexPtr = Tk_PointToChar(textPtr->textLayout, - x + canvasPtr->scrollX1 - textPtr->leftEdge, - y + canvasPtr->scrollY1 - textPtr->header.y1); + (int) (x*c - y*s), (int) (y*c + x*s)); } else if (Tcl_GetIntFromObj(NULL, obj, indexPtr) == TCL_OK) { - if (*indexPtr < 0){ + if (*indexPtr < 0) { *indexPtr = 0; } else if (*indexPtr > textPtr->numChars) { *indexPtr = textPtr->numChars; @@ -1298,8 +1409,8 @@ GetTextIndex( */ badIndex: - Tcl_SetResult(interp, NULL, TCL_STATIC); - Tcl_AppendResult(interp, "bad index \"", string, "\"", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf("bad index \"%s\"", string)); + Tcl_SetErrorCode(interp, "TK", "CANVAS", "ITEM_INDEX", "TEXT", NULL); return TCL_ERROR; } return TCL_OK; @@ -1375,7 +1486,7 @@ GetSelText( TextItem *textPtr = (TextItem *) itemPtr; int byteCount; char *text; - CONST char *selStart, *selEnd; + const char *selStart, *selEnd; Tk_CanvasTextInfo *textInfoPtr = textPtr->textInfoPtr; if ((textInfoPtr->selectFirst < 0) || @@ -1427,59 +1538,73 @@ TextToPostscript( * being created. */ { TextItem *textPtr = (TextItem *) itemPtr; - int x, y; + double x, y; Tk_FontMetrics fm; - char *justify; - char buffer[500]; + const char *justify; XColor *color; Pixmap stipple; Tk_State state = itemPtr->state; + Tcl_Obj *psObj; + Tcl_InterpState interpState; if (state == TK_STATE_NULL) { - state = ((TkCanvas *)canvas)->canvas_state; + state = Canvas(canvas)->canvas_state; } color = textPtr->color; stipple = textPtr->stipple; if (state == TK_STATE_HIDDEN || textPtr->color == NULL || textPtr->text == NULL || *textPtr->text == 0) { return TCL_OK; - } else if (((TkCanvas *)canvas)->currentItemPtr == itemPtr) { - if (textPtr->activeColor!=NULL) { + } else if (Canvas(canvas)->currentItemPtr == itemPtr) { + if (textPtr->activeColor != NULL) { color = textPtr->activeColor; } - if (textPtr->activeStipple!=None) { + if (textPtr->activeStipple != None) { stipple = textPtr->activeStipple; } - } else if (state==TK_STATE_DISABLED) { - if (textPtr->disabledColor!=NULL) { + } else if (state == TK_STATE_DISABLED) { + if (textPtr->disabledColor != NULL) { color = textPtr->disabledColor; } - if (textPtr->disabledStipple!=None) { + if (textPtr->disabledStipple != None) { stipple = textPtr->disabledStipple; } } + /* + * Make our working space. + */ + + psObj = Tcl_NewObj(); + interpState = Tcl_SaveInterpState(interp, TCL_OK); + + /* + * Generate postscript. + */ + + Tcl_ResetResult(interp); if (Tk_CanvasPsFont(interp, canvas, textPtr->tkfont) != TCL_OK) { - return TCL_ERROR; + goto error; } + Tcl_AppendObjToObj(psObj, Tcl_GetObjResult(interp)); + if (prepass != 0) { - return TCL_OK; + goto done; } + + Tcl_ResetResult(interp); if (Tk_CanvasPsColor(interp, canvas, color) != TCL_OK) { - return TCL_ERROR; + goto error; } + Tcl_AppendObjToObj(psObj, Tcl_GetObjResult(interp)); + if (stipple != None) { - Tcl_AppendResult(interp, "/StippleText {\n ", NULL); + Tcl_ResetResult(interp); Tk_CanvasPsStipple(interp, canvas, stipple); - Tcl_AppendResult(interp, "} bind def\n", NULL); + Tcl_AppendPrintfToObj(psObj, "/StippleText {\n %s} bind def\n", + Tcl_GetString(Tcl_GetObjResult(interp))); } - sprintf(buffer, "%.15g %.15g [\n", textPtr->x, - Tk_CanvasPsY(canvas, textPtr->y)); - Tcl_AppendResult(interp, buffer, NULL); - - Tk_TextLayoutToPostscript(interp, textPtr->textLayout); - x = 0; y = 0; justify = NULL; /* lint. */ switch (textPtr->anchor) { case TK_ANCHOR_NW: x = 0; y = 0; break; @@ -1499,17 +1624,31 @@ TextToPostscript( } Tk_GetFontMetrics(textPtr->tkfont, &fm); - sprintf(buffer, "] %d ", fm.linespace); - Tcl_AppendResult(interp, buffer, NULL); - Tcl_PrintDouble(NULL, x / -2.0, buffer); - Tcl_AppendResult(interp, buffer, NULL); - Tcl_PrintDouble(NULL, y / 2.0, buffer); - Tcl_AppendResult(interp, " ", buffer, NULL); - sprintf(buffer, " %s %s DrawText\n", - justify, ((stipple == None) ? "false" : "true")); - Tcl_AppendResult(interp, buffer, NULL); + Tcl_AppendPrintfToObj(psObj, "%.15g %.15g %.15g [\n", + textPtr->angle, textPtr->x, Tk_CanvasPsY(canvas, textPtr->y)); + Tcl_ResetResult(interp); + Tk_TextLayoutToPostscript(interp, textPtr->textLayout); + Tcl_AppendObjToObj(psObj, Tcl_GetObjResult(interp)); + Tcl_AppendPrintfToObj(psObj, + "] %d %g %g %s %s DrawText\n", + fm.linespace, x / -2.0, y / 2.0, justify, + ((stipple == None) ? "false" : "true")); + + /* + * Plug the accumulated postscript back into the result. + */ + + done: + (void) Tcl_RestoreInterpState(interp, interpState); + Tcl_AppendObjToObj(Tcl_GetObjResult(interp), psObj); + Tcl_DecrRefCount(psObj); return TCL_OK; + + error: + Tcl_DiscardInterpState(interpState); + Tcl_DecrRefCount(psObj); + return TCL_ERROR; } /* |