implementation of TIP 63 (accepted) -compound option to menu items.

1 files changed, 145 insertions, 23 deletions

diff --git a/win/tkWinMenu.c b/win/tkWinMenu.c
index 3108ccc..f612690 100644
--- a/win/tkWinMenu.c
+++ b/win/tkWinMenu.c
@@ -9,7 +9,7 @@
  * See the file "license.terms" for information on usage and redistribution
  * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tkWinMenu.c,v 1.15 2001/09/21 21:34:10 hobbs Exp $
+ * RCS: @(#) $Id: tkWinMenu.c,v 1.16 2001/10/12 13:30:32 tmh Exp $
  */
 
 #define OEMRESOURCE
@@ -1889,7 +1889,6 @@ TkpInitializeMenuBindings(interp, bindingTable)
  *
  *----------------------------------------------------------------------
  */
-
 static void
 DrawMenuEntryLabel(
     TkMenu *menuPtr,			/* The menu we are drawing */
@@ -1903,46 +1902,122 @@ DrawMenuEntryLabel(
     int width,				/* width of entry */
     int height)				/* height of entry */
 {
-    int baseline;
     int indicatorSpace =  mePtr->indicatorSpace;
     int activeBorderWidth;
     int leftEdge;
     int imageHeight, imageWidth;
+    int textHeight, textWidth;
+    int haveImage = 0, haveText = 0;
+    int imageXOffset = 0, imageYOffset = 0;
+    int textXOffset = 0, textYOffset = 0;
 
     Tk_GetPixelsFromObj(menuPtr->interp, menuPtr->tkwin,
 	    menuPtr->activeBorderWidthPtr, &activeBorderWidth);
     leftEdge = x + indicatorSpace + activeBorderWidth;
 
     /*
-     * Draw label or bitmap or image for entry.
+     * Work out what we will need to draw first.
      */
 
-    baseline = y + (height + fmPtr->ascent - fmPtr->descent) / 2;
     if (mePtr->image != NULL) {
     	Tk_SizeOfImage(mePtr->image, &imageWidth, &imageHeight);
+        haveImage = 1;
+    } else if (mePtr->bitmapPtr != NULL) {
+	Pixmap bitmap = Tk_GetBitmapFromObj(menuPtr->tkwin, mePtr->bitmapPtr);
+	Tk_SizeOfBitmap(menuPtr->display, bitmap, &imageWidth, &imageHeight);
+	haveImage = 1;
+    }
+    if (!haveImage || (mePtr->compound != COMPOUND_NONE)) {
+        if (mePtr->labelLength > 0) {
+	    char *label = Tcl_GetStringFromObj(mePtr->labelPtr, NULL);
+	    textWidth = Tk_TextWidth(tkfont, label, mePtr->labelLength);
+	    textHeight = fmPtr->linespace;
+	    haveText = 1;
+        }
+    }
+    
+    /*
+     * Now work out what the relative positions are.
+     */
+
+    if (haveImage && haveText) {
+	int fullWidth = (imageWidth > textWidth ? imageWidth : textWidth);
+	switch ((enum compound) mePtr->compound) {
+	    case COMPOUND_TOP: {
+		textXOffset = (fullWidth - textWidth)/2;
+		textYOffset = imageHeight/2 + 2;
+		imageXOffset = (fullWidth - imageWidth)/2;
+		imageYOffset = -textHeight/2;
+		break;
+	    }
+	    case COMPOUND_BOTTOM: {
+		textXOffset = (fullWidth - textWidth)/2;
+		textYOffset = -imageHeight/2;
+		imageXOffset = (fullWidth - imageWidth)/2;
+		imageYOffset = textHeight/2 + 2;
+		break;
+	    }
+	    case COMPOUND_LEFT: {
+		textXOffset = imageWidth + 2;
+		textYOffset = 0;
+		imageXOffset = 0;
+		imageYOffset = 0;
+		break;
+	    }
+	    case COMPOUND_RIGHT: {
+		textXOffset = 0;
+		textYOffset = 0;
+		imageXOffset = textWidth + 2;
+		imageYOffset = 0;
+		break;
+	    }
+	    case COMPOUND_CENTER: {
+		textXOffset = (fullWidth - textWidth)/2;
+		textYOffset = 0;
+		imageXOffset = (fullWidth - imageWidth)/2;
+		imageYOffset = 0;
+		break;
+	    }
+	    case COMPOUND_NONE: {break;}
+	}
+    } else {
+	textXOffset = 0;
+	textYOffset = 0;
+	imageXOffset = 0;
+	imageYOffset = 0;
+    }
+    
+    /*
+     * Draw label and/or bitmap or image for entry.
+     */
+
+    if (mePtr->image != NULL) {
     	if ((mePtr->selectImage != NULL)
 	    	&& (mePtr->entryFlags & ENTRY_SELECTED)) {
 	    Tk_RedrawImage(mePtr->selectImage, 0, 0,
-		    imageWidth, imageHeight, d, leftEdge,
-	            (int) (y + (mePtr->height - imageHeight)/2));
+		    imageWidth, imageHeight, d, leftEdge + imageXOffset,
+	            (int) (y + (mePtr->height - imageHeight)/2 + imageYOffset));
     	} else {
 	    Tk_RedrawImage(mePtr->image, 0, 0, imageWidth,
-		    imageHeight, d, leftEdge,
-		    (int) (y + (mePtr->height - imageHeight)/2));
+		    imageHeight, d, leftEdge + imageXOffset,
+		    (int) (y + (mePtr->height - imageHeight)/2 + imageYOffset));
     	}
     } else if (mePtr->bitmapPtr != NULL) {
-    	int width, height;
 	Pixmap bitmap = Tk_GetBitmapFromObj(menuPtr->tkwin, mePtr->bitmapPtr);
-        Tk_SizeOfBitmap(menuPtr->display, bitmap, &width, &height);
-    	XCopyPlane(menuPtr->display, bitmap, d,	gc, 0, 0, (unsigned) width, 
-		(unsigned) height, leftEdge,
-		(int) (y + (mePtr->height - height)/2), 1);
-    } else {
+    	XCopyPlane(menuPtr->display, bitmap, d,	gc, 0, 0, 
+		(unsigned) imageWidth, (unsigned) imageHeight, 
+		leftEdge + imageXOffset,
+		(int) (y + (mePtr->height - imageHeight)/2 + imageYOffset), 1);
+    }
+    if ((mePtr->compound != COMPOUND_NONE) || !haveImage) {
     	if (mePtr->labelLength > 0) {
+	    int baseline = y + (height + fmPtr->ascent - fmPtr->descent) / 2;
 	    char *label = Tcl_GetStringFromObj(mePtr->labelPtr, NULL);
 	    Tk_DrawChars(menuPtr->display, d, gc, tkfont, label, 
-		    mePtr->labelLength, leftEdge, baseline);
-	    DrawMenuUnderline(menuPtr, mePtr, d, gc, tkfont, fmPtr, x, y,
+		    mePtr->labelLength, leftEdge + textXOffset, 
+		    baseline + textYOffset);
+	    DrawMenuUnderline(menuPtr, mePtr, d, gc, tkfont, fmPtr, 
+	            x + textXOffset, y + textYOffset,
 		    width, height);
     	}
     }
@@ -1954,8 +2029,8 @@ DrawMenuEntryLabel(
 	} else if ((mePtr->image != NULL) 
 		&& (menuPtr->disabledImageGC != None)) {
 	    XFillRectangle(menuPtr->display, d, menuPtr->disabledImageGC,
-		    leftEdge,
-		    (int) (y + (mePtr->height - imageHeight)/2),
+		    leftEdge + imageXOffset,
+		    (int) (y + (mePtr->height - imageHeight)/2 + imageYOffset),
 		    (unsigned) imageWidth, (unsigned) imageHeight);
 	}
     }
@@ -2237,21 +2312,68 @@ GetMenuLabelGeometry(mePtr, tkfont, fmPtr, widthPtr, heightPtr)
 					 * portion */
 {
     TkMenu *menuPtr = mePtr->menuPtr;
+    int haveImage = 0, haveText = 0;
  
     if (mePtr->image != NULL) {
     	Tk_SizeOfImage(mePtr->image, widthPtr, heightPtr);
+	haveImage = 1;
     } else if (mePtr->bitmapPtr != NULL) {
 	Pixmap bitmap = Tk_GetBitmapFromObj(menuPtr->tkwin, mePtr->bitmapPtr);
     	Tk_SizeOfBitmap(menuPtr->display, bitmap, widthPtr, heightPtr);
+	haveImage = 1;
     } else {
-    	*heightPtr = fmPtr->linespace;
+	*heightPtr = 0;
+	*widthPtr = 0;
+    }
     	
+    if (haveImage && (mePtr->compound == COMPOUND_NONE)) {
+	/* We don't care about the text in this case */
+    } else {
+	/* Either it is compound or we don't have an image */
     	if (mePtr->labelPtr != NULL) {
+	    int textWidth;
 	    char *label = Tcl_GetStringFromObj(mePtr->labelPtr, NULL);
-
-    	    *widthPtr = Tk_TextWidth(tkfont, label, mePtr->labelLength);
+	    textWidth = Tk_TextWidth(tkfont, label, mePtr->labelLength);
+
+	    if ((mePtr->compound != COMPOUND_NONE) && haveImage) {
+		switch ((enum compound) mePtr->compound) {
+		    case COMPOUND_TOP:
+		    case COMPOUND_BOTTOM: {
+			if (textWidth > *widthPtr) {
+			    *widthPtr = textWidth;
+			}
+			/* Add text and padding */
+			*heightPtr += fmPtr->linespace + 2;
+			break;
+		    }
+		    case COMPOUND_LEFT:
+		    case COMPOUND_RIGHT: {
+			if (fmPtr->linespace > *heightPtr) {
+			    *heightPtr = fmPtr->linespace;
+			}
+			/* Add text and padding */
+			*widthPtr += textWidth + 2;
+			break;
+		    }
+		    case COMPOUND_CENTER: {
+			if (fmPtr->linespace > *heightPtr) {
+			    *heightPtr = fmPtr->linespace;
+			}
+			if (textWidth > *widthPtr) {
+			    *widthPtr = textWidth;
+			}
+			break;
+		    }
+		    case COMPOUND_NONE: {break;}
+		}
     	} else {
-    	    *widthPtr = 0;
+		/* We don't have an image or we're not compound */
+		*heightPtr = fmPtr->linespace;
+		*widthPtr = textWidth;
+	    }
+	} else {
+	    /* An empty entry still has this height */
+	    *heightPtr = fmPtr->linespace;
     	}
     }
     *heightPtr += 1;