/* * tkMacOSXButton.c -- * * This file implements the Macintosh specific portion of the * button widgets. * * Copyright (c) 1996-1997 by Sun Microsystems, Inc. * Copyright 2001-2009, Apple Inc. * Copyright (c) 2006-2009 Daniel A. Steffen * Copyright 2014 Marc Culler. * * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. */ #include "tkMacOSXPrivate.h" #include "tkButton.h" #include "tkMacOSXFont.h" #include "tkMacOSXDebug.h" /* #ifdef TK_MAC_DEBUG #define TK_MAC_DEBUG_BUTTON #endif */ static NSRect TkMacOSXGetButtonFrame(TkButton *butPtr); /* * A subclass of NSButton with sanity checking: * NSButtons created by Tk will have their tag set to a pointer to the TkButton * which manages the NSButton. This allows a TkNSButton to be aware of the * state of its Tk parent. This subclass overrides the drawRect method * so that it will not draw itself unless the NSButton frame matches * the frame which was installed by DisplayButton, and the TkButton is * mapped. Also, it will not draw anything if the widget is completely * outside of its container. */ @interface TkNSButton: NSButton @end @implementation TkNSButton - (void)drawRect:(NSRect)dirtyRect { NSInteger tag = [self tag]; if ( tag != -1) { TkButton *butPtr = (TkButton *)tag; MacDrawable* macWin = (MacDrawable *)butPtr; NSRect Tkframe = TkMacOSXGetButtonFrame(butPtr); Tk_Window tkwin = butPtr->tkwin; /* Do not draw if the widget is misplaced or unmapped. */ if ( NSIsEmptyRect(Tkframe) || ! macWin->winPtr->flags & TK_MAPPED || ! NSEqualRects(Tkframe, [self frame]) ) { return; } /* Do not draw if the widget is completely outside of its parent, or within 20 pixels of the lower border; this prevents buttons from being drawn on peer widgets as scrolling occurs. */ if (tkwin) { int parent_height = Tk_Height(Tk_Parent(tkwin)); int widget_height = Tk_Height(tkwin); int y = Tk_Y(tkwin); if ( y > parent_height - 20 || y + widget_height < 0 ) { return; } /* Do not draw if the widget is completely outside of its parent, or within 50 pixels of the right border; this prevents buttons from being drawn on peer widgets as scrolling occurs. */ int parent_width = Tk_Width(Tk_Parent(tkwin)); int widget_width = Tk_Width(tkwin); int x = Tk_X(tkwin); if (x > parent_width - 50 || x < 0) { return; } } [super drawRect:dirtyRect]; } } @end typedef struct MacButton { TkButton info; TkNSButton *button; NSImage *image, *selectImage, *tristateImage; #if TK_MAC_BUTTON_USE_COMPATIBILITY_METRICS int fix; #endif } MacButton; #if TK_MAC_BUTTON_USE_COMPATIBILITY_METRICS int tkMacOSXUseCompatibilityMetrics = 1; /* * Use the following heuristic conversion constants to make NSButton-based * widget metrics match up with the old Carbon control buttons (for the * default Lucida Grande 13 font). */ #define NATIVE_BUTTON_INSET 2 #define NATIVE_BUTTON_EXTRA_H 2 typedef struct { int trimW, trimH, inset, shrinkH, offsetX, offsetY; } BoundsFix; #define fixForTypeStyle(type, style) ( \ type == NSSwitchButton ? 0 : \ type == NSRadioButton ? 1 : \ style == NSRoundedBezelStyle ? 2 : \ style == NSRegularSquareBezelStyle ? 3 : \ style == NSShadowlessSquareBezelStyle ? 4 : \ INT_MIN) static const BoundsFix boundsFixes[] = { [fixForTypeStyle(NSSwitchButton,0)] = { 2, 2, -1, 0, 2, 1 }, [fixForTypeStyle(NSRadioButton,0)] = { 0, 2, -1, 0, 1, 1 }, [fixForTypeStyle(0,NSRoundedBezelStyle)] = { 28, 16, -6, 0, 0, 3 }, [fixForTypeStyle(0,NSRegularSquareBezelStyle)] = { 28, 15, -2, -1 }, [fixForTypeStyle(0,NSShadowlessSquareBezelStyle)] = { 2, 2 }, }; #endif static void DisplayNativeButton(TkButton *butPtr); static void ComputeNativeButtonGeometry(TkButton *butPtr); static void DisplayUnixButton(TkButton *butPtr); static void ComputeUnixButtonGeometry(TkButton *butPtr); /* * The class procedure table for the button widgets. */ const Tk_ClassProcs tkpButtonProcs = { sizeof(Tk_ClassProcs), /* size */ TkButtonWorldChanged, /* worldChangedProc */ NULL, /* createProc */ NULL /* modalProc */ }; /* *---------------------------------------------------------------------- * * TkpCreateButton -- * * Allocate a new TkButton structure. * * Results: * Returns a newly allocated TkButton structure. * * Side effects: * Registers an event handler for the widget. * *---------------------------------------------------------------------- */ TkButton * TkpCreateButton( Tk_Window tkwin) { MacButton *macButtonPtr = ckalloc(sizeof(MacButton)); macButtonPtr->button = nil; macButtonPtr->image = nil; macButtonPtr->selectImage = nil; macButtonPtr->tristateImage = nil; return (TkButton *) macButtonPtr; } /* *---------------------------------------------------------------------- * * TkpDestroyButton -- * * Free data structures associated with the button control. * * Results: * None. * * Side effects: * Restores the default control state. * *---------------------------------------------------------------------- */ void TkpDestroyButton( TkButton *butPtr) { MacButton *macButtonPtr = (MacButton *) butPtr; [macButtonPtr->button setTag:(NSInteger)-1]; TkMacOSXMakeCollectableAndRelease(macButtonPtr->button); TkMacOSXMakeCollectableAndRelease(macButtonPtr->selectImage); TkMacOSXMakeCollectableAndRelease(macButtonPtr->selectImage); TkMacOSXMakeCollectableAndRelease(macButtonPtr->tristateImage); } /* *---------------------------------------------------------------------- * * TkpDisplayButton -- * * This procedure is invoked to display a button widget. It is * normally invoked as an idle handler. * * Results: * None. * * Side effects: * Commands are output to X to display the button in its * current mode. The REDRAW_PENDING flag is cleared. * *---------------------------------------------------------------------- */ void TkpDisplayButton( ClientData clientData) /* Information about widget. */ { TkButton *butPtr = (TkButton *) clientData; butPtr->flags &= ~REDRAW_PENDING; if (!butPtr->tkwin || !Tk_IsMapped(butPtr->tkwin)) { return; } switch (butPtr->type) { case TYPE_LABEL: DisplayUnixButton(butPtr); break; case TYPE_BUTTON: case TYPE_CHECK_BUTTON: case TYPE_RADIO_BUTTON: DisplayNativeButton(butPtr); break; } } /* *---------------------------------------------------------------------- * * TkpShiftButton -- * * Moves the frame of an NSButton (or TkNSButton) and in case the tag is * set, also adjusts the xOff and yOff of the controlling TkButton's * MacDrawable. This is used to avoid jitter when scrolling. * * Results: * None * * Side effects: * Moves the NSbutton after adjusting the associated MacDrawable. * *---------------------------------------------------------------------- */ void TkpShiftButton( NSButton *button, NSPoint delta ) { NSPoint origin = [button frame].origin; NSInteger tag = [button tag]; if ( tag != -1) { TkButton* butPtr = (TkButton *)tag; TkWindow *winPtr = (TkWindow *) (butPtr->tkwin); if (winPtr) { MacDrawable *macWin = (MacDrawable *) winPtr->window; macWin->xOff += delta.x; macWin->yOff += delta.y; } } origin.x += delta.x; origin.y -= delta.y; [button setFrameOrigin:origin]; } /* *---------------------------------------------------------------------- * * TkpComputeButtonGeometry -- * * After changes in a button's text or bitmap, this procedure * recomputes the button's geometry and passes this information * along to the geometry manager for the window. * * Results: * None. * * Side effects: * The button's window may change size. * *---------------------------------------------------------------------- */ void TkpComputeButtonGeometry( register TkButton *butPtr) /* Button whose geometry may have changed. */ { MacButton *macButtonPtr = (MacButton *) butPtr; switch (butPtr->type) { case TYPE_LABEL: if (macButtonPtr->button && [macButtonPtr->button superview]) { [macButtonPtr->button removeFromSuperviewWithoutNeedingDisplay]; } ComputeUnixButtonGeometry(butPtr); break; case TYPE_BUTTON: case TYPE_CHECK_BUTTON: case TYPE_RADIO_BUTTON: if (!macButtonPtr->button) { TkNSButton *button = [[TkNSButton alloc] initWithFrame:NSZeroRect]; [button setTag:(NSInteger)butPtr]; macButtonPtr->button = TkMacOSXMakeUncollectable(button); } ComputeNativeButtonGeometry(butPtr); break; } } /* *---------------------------------------------------------------------- * * TkpButtonSetDefaults -- * * This procedure is invoked before option tables are created for * buttons. It modifies some of the default values to match the current * values defined for this platform. * * Results: * Some of the default values in *specPtr are modified. * * Side effects: * Updates some of. * *---------------------------------------------------------------------- */ void TkpButtonSetDefaults() { #if TK_MAC_BUTTON_USE_COMPATIBILITY_METRICS if (!tkMacOSXUseCompatibilityMetrics) { strcpy(tkDefButtonHighlightWidth, DEF_BUTTON_HIGHLIGHT_WIDTH_NOCM); strcpy(tkDefLabelHighlightWidth, DEF_BUTTON_HIGHLIGHT_WIDTH_NOCM); strcpy(tkDefButtonPadx, DEF_BUTTON_PADX_NOCM); strcpy(tkDefLabelPadx, DEF_BUTTON_PADX_NOCM); strcpy(tkDefButtonPady, DEF_BUTTON_PADY_NOCM); strcpy(tkDefLabelPady, DEF_BUTTON_PADY_NOCM); } #endif } #pragma mark - #pragma mark Native Buttons: /* *---------------------------------------------------------------------- * * TkMacOSXGetButtonFrame -- * * Computes a frame for an NSButton that will correspond to where * Tk thinks the button is located. * * Results: * Returns an NSRect describing a frame for an NSButton. * * Side effects: * None * *---------------------------------------------------------------------- */ NSRect TkMacOSXGetButtonFrame( TkButton *butPtr) { MacButton *macButtonPtr = (MacButton *) butPtr; Tk_Window tkwin = butPtr->tkwin; TkWindow *winPtr = (TkWindow *) tkwin; if (tkwin) { MacDrawable *macWin = (MacDrawable *) winPtr->window; NSView *view = TkMacOSXDrawableView(macWin); CGFloat viewHeight = [view bounds].size.height; NSRect frame = NSMakeRect(macWin->xOff, macWin->yOff, Tk_Width(tkwin), Tk_Height(tkwin)); #if TK_MAC_BUTTON_USE_COMPATIBILITY_METRICS if (tkMacOSXUseCompatibilityMetrics) { BoundsFix boundsFix = boundsFixes[macButtonPtr->fix]; frame = NSOffsetRect(frame, boundsFix.offsetX, boundsFix.offsetY); frame.size.height -= boundsFix.shrinkH + NATIVE_BUTTON_EXTRA_H; frame = NSInsetRect(frame, boundsFix.inset + NATIVE_BUTTON_INSET, boundsFix.inset + NATIVE_BUTTON_INSET); } #endif frame.origin.y = viewHeight - (frame.origin.y + frame.size.height); return frame; } else { return NSZeroRect; } } /* *---------------------------------------------------------------------- * * DisplayNativeButton -- * * This procedure is invoked to display a button widget. It is * normally invoked as an idle handler. * * Results: * None. * * Side effects: * Commands are output to X to display the button in its * current mode. The REDRAW_PENDING flag is cleared. * *---------------------------------------------------------------------- */ static void DisplayNativeButton( TkButton *butPtr) { MacButton *macButtonPtr = (MacButton *) butPtr; TkNSButton *button = macButtonPtr->button; Tk_Window tkwin = butPtr->tkwin; TkWindow *winPtr = (TkWindow *) tkwin; MacDrawable *macWin = (MacDrawable *) winPtr->window; TkMacOSXDrawingContext dc; NSView *view = TkMacOSXDrawableView(macWin); CGFloat viewHeight = [view bounds].size.height; CGAffineTransform t = { .a = 1, .b = 0, .c = 0, .d = -1, .tx = 0, .ty = viewHeight}; NSRect frame; int enabled; NSCellStateValue state; if (!view || !TkMacOSXSetupDrawingContext((Drawable) macWin, NULL, 1, &dc)) { return; } CGContextConcatCTM(dc.context, t); /* * We cannot change the background color of the button itself, only the * color of the background of its container. * This will be the color that peeks around the rounded corners of the * button. We make this the highlightbackground rather than the background, * because if you color the background of a frame containing a * button, you usually also color the highlightbackground as well, * or you will get a thin grey ring around the button. */ Tk_Fill3DRectangle(tkwin, (Pixmap) macWin, butPtr->type == TYPE_BUTTON ? butPtr->highlightBorder : butPtr->normalBorder, 0, 0, Tk_Width(tkwin), Tk_Height(tkwin), 0, TK_RELIEF_FLAT); if ([button superview] != view) { [view addSubview:button]; } if (macButtonPtr->tristateImage) { NSImage *selectImage = macButtonPtr->selectImage ? macButtonPtr->selectImage : macButtonPtr->image; [button setImage:(butPtr->flags & TRISTATED ? selectImage : macButtonPtr->image)]; [button setAlternateImage:(butPtr->flags & TRISTATED ? macButtonPtr->tristateImage : selectImage)]; } if (butPtr->flags & SELECTED) { state = NSOnState; } else if (butPtr->flags & TRISTATED) { state = NSMixedState; } else { state = NSOffState; } [button setState:state]; enabled = !(butPtr->state == STATE_DISABLED); [button setEnabled:enabled]; if (enabled) { //[button highlight:(butPtr->state == STATE_ACTIVE)]; //[cell setHighlighted:(butPtr->state == STATE_ACTIVE)]; } if (butPtr->type == TYPE_BUTTON && butPtr->defaultState == STATE_ACTIVE) { //[[view window] setDefaultButtonCell:cell]; [button setKeyEquivalent:@"\r"]; } else { [button setKeyEquivalent:@""]; } frame = TkMacOSXGetButtonFrame(butPtr); [button setFrame:frame]; [button displayRectIgnoringOpacity:[button bounds]]; TkMacOSXRestoreDrawingContext(&dc); #ifdef TK_MAC_DEBUG_BUTTON TKLog(@"button %s frame %@ width %d height %d", ((TkWindow *)butPtr->tkwin)->pathName, NSStringFromRect(frame), Tk_Width(tkwin), Tk_Height(tkwin)); #endif } /* *---------------------------------------------------------------------- * * ComputeNativeButtonGeometry -- * * After changes in a button's text or bitmap, this procedure * recomputes the button's geometry and passes this information * along to the geometry manager for the window. * * Results: * None. * * Side effects: * The button's window may change size. * *---------------------------------------------------------------------- */ static void ComputeNativeButtonGeometry( TkButton *butPtr) /* Button whose geometry may have changed. */ { MacButton *macButtonPtr = (MacButton *) butPtr; TkNSButton *button = macButtonPtr->button; NSButtonCell *cell = [button cell]; NSButtonType type = -1; NSBezelStyle style = 0; NSInteger highlightsBy = 0, showsStateBy = 0; NSFont *font; NSRect bounds = NSZeroRect, titleRect = NSZeroRect; int haveImage = (butPtr->image || butPtr->bitmap != None), haveText = 0; int haveCompound = (butPtr->compound != COMPOUND_NONE); int width, height, border = 0; butPtr->indicatorSpace = 0; butPtr->inset = 0; if (butPtr->highlightWidth < 0) { butPtr->highlightWidth = 0; } switch (butPtr->type) { case TYPE_BUTTON: type = NSMomentaryPushInButton; if (!haveImage) { style = NSRoundedBezelStyle; butPtr->inset = butPtr->defaultState != STATE_DISABLED ? butPtr->highlightWidth : 0; [button setImage:nil]; [button setImagePosition:NSNoImage]; } else { style = NSShadowlessSquareBezelStyle; highlightsBy = butPtr->selectImage || butPtr->bitmap ? NSContentsCellMask : 0; border = butPtr->borderWidth; } break; case TYPE_RADIO_BUTTON: case TYPE_CHECK_BUTTON: if (!haveImage /*|| butPtr->indicatorOn*/) { // TODO: indicatorOn type = butPtr->type == TYPE_RADIO_BUTTON ? NSRadioButton : NSSwitchButton; butPtr->inset = /*butPtr->indicatorOn ? 0 :*/ butPtr->borderWidth; } else { type = NSPushOnPushOffButton; style = NSShadowlessSquareBezelStyle; highlightsBy = butPtr->selectImage || butPtr->bitmap ? NSContentsCellMask : 0; showsStateBy = butPtr->selectImage || butPtr->tristateImage ? NSContentsCellMask : 0; #if TK_MAC_BUTTON_USE_COMPATIBILITY_METRICS if (tkMacOSXUseCompatibilityMetrics) { border = butPtr->borderWidth > 1 ? butPtr->borderWidth - 1 : 1; } else #endif { border = butPtr->borderWidth; } } break; } [button setButtonType:type]; if (style) { [button setBezelStyle:style]; } if (highlightsBy) { [cell setHighlightsBy:highlightsBy|[cell highlightsBy]]; } if (showsStateBy) { [cell setShowsStateBy:showsStateBy|[cell showsStateBy]]; } #if 0 if (style == NSShadowlessSquareBezelStyle) { NSControlSize controlSize = NSRegularControlSize; if (butPtr->borderWidth <= 2) { controlSize = NSMiniControlSize; } else if (butPtr->borderWidth == 3) { controlSize = NSSmallControlSize; } [cell setControlSize:controlSize]; } #endif [button setAllowsMixedState:YES]; if (!haveImage || haveCompound) { int len; char *text = Tcl_GetStringFromObj(butPtr->textPtr, &len); if (len) { NSString *title = [[NSString alloc] initWithBytes:text length:len encoding:NSUTF8StringEncoding]; [button setTitle:title]; [title release]; haveText = 1; } } haveCompound = (haveCompound && haveImage && haveText); if (haveText) { NSTextAlignment alignment = NSNaturalTextAlignment; switch (butPtr->justify) { case TK_JUSTIFY_LEFT: alignment = NSLeftTextAlignment; break; case TK_JUSTIFY_RIGHT: alignment = NSRightTextAlignment; break; case TK_JUSTIFY_CENTER: alignment = NSCenterTextAlignment; break; } [button setAlignment:alignment]; } else { [button setTitle:@""]; } font = TkMacOSXNSFontForFont(butPtr->tkfont); if (font) { [button setFont:font]; } TkMacOSXMakeCollectableAndRelease(macButtonPtr->image); TkMacOSXMakeCollectableAndRelease(macButtonPtr->selectImage); TkMacOSXMakeCollectableAndRelease(macButtonPtr->tristateImage); if (haveImage) { int width, height; NSImage *image, *selectImage = nil, *tristateImage = nil; NSCellImagePosition pos = NSImageOnly; if (butPtr->image) { Tk_SizeOfImage(butPtr->image, &width, &height); image = TkMacOSXGetNSImageWithTkImage(butPtr->display, butPtr->image, width, height); if (butPtr->selectImage) { selectImage = TkMacOSXGetNSImageWithTkImage(butPtr->display, butPtr->selectImage, width, height); } if (butPtr->tristateImage) { tristateImage = TkMacOSXGetNSImageWithTkImage(butPtr->display, butPtr->tristateImage, width, height); } } else { Tk_SizeOfBitmap(butPtr->display, butPtr->bitmap, &width, &height); image = TkMacOSXGetNSImageWithBitmap(butPtr->display, butPtr->bitmap, butPtr->normalTextGC, width, height); selectImage = TkMacOSXGetNSImageWithBitmap(butPtr->display, butPtr->bitmap, butPtr->activeTextGC, width, height); } [button setImage:image]; if (selectImage) { [button setAlternateImage:selectImage]; } if (tristateImage) { macButtonPtr->image = TkMacOSXMakeUncollectableAndRetain(image); if (selectImage) { macButtonPtr->selectImage = TkMacOSXMakeUncollectableAndRetain(selectImage); } macButtonPtr->tristateImage = TkMacOSXMakeUncollectableAndRetain(tristateImage); } if (haveCompound) { switch ((enum compound) butPtr->compound) { case COMPOUND_TOP: pos = NSImageAbove; break; case COMPOUND_BOTTOM: pos = NSImageBelow; break; case COMPOUND_LEFT: pos = NSImageLeft; break; case COMPOUND_RIGHT: pos = NSImageRight; break; case COMPOUND_CENTER: pos = NSImageOverlaps; break; case COMPOUND_NONE: pos = NSImageOnly; break; } } [button setImagePosition:pos]; } // if font is too tall, we can't use the fixed-height rounded bezel if (!haveImage && haveText && style == NSRoundedBezelStyle) { Tk_FontMetrics fm; Tk_GetFontMetrics(butPtr->tkfont, &fm); if (fm.linespace > 18) { [button setBezelStyle:(style = NSShadowlessSquareBezelStyle)]; } } bounds.size = [cell cellSize]; if (haveText) { titleRect = [cell titleRectForBounds:bounds]; if (butPtr->wrapLength > 0 && titleRect.size.width > butPtr->wrapLength) { if (style == NSRoundedBezelStyle) { [button setBezelStyle:(style = NSRegularSquareBezelStyle)]; bounds.size = [cell cellSize]; titleRect = [cell titleRectForBounds:bounds]; } bounds.size.width -= titleRect.size.width - butPtr->wrapLength; bounds.size.height = 40000.0; [cell setWraps:YES]; bounds.size = [cell cellSizeForBounds:bounds]; #ifdef TK_MAC_DEBUG_BUTTON titleRect = [cell titleRectForBounds:bounds]; #endif #if TK_MAC_BUTTON_USE_COMPATIBILITY_METRICS if (tkMacOSXUseCompatibilityMetrics) { bounds.size.height += 3; } #endif } } width = lround(bounds.size.width); height = lround(bounds.size.height); #if TK_MAC_BUTTON_USE_COMPATIBILITY_METRICS if (tkMacOSXUseCompatibilityMetrics) { macButtonPtr->fix = fixForTypeStyle(type, style); width -= boundsFixes[macButtonPtr->fix].trimW; height -= boundsFixes[macButtonPtr->fix].trimH; } #endif if (haveImage || haveCompound) { if (butPtr->width > 0) { width = butPtr->width; } if (butPtr->height > 0) { height = butPtr->height; } } else { if (butPtr->width > 0) { int avgWidth = Tk_TextWidth(butPtr->tkfont, "0", 1); width = butPtr->width * avgWidth; } if (butPtr->height > 0) { Tk_FontMetrics fm; Tk_GetFontMetrics(butPtr->tkfont, &fm); height = butPtr->height * fm.linespace; } } if (!haveImage || haveCompound) { width += 2*butPtr->padX; height += 2*butPtr->padY; } if (haveImage) { width += 2*border; height += 2*border; } #if TK_MAC_BUTTON_USE_COMPATIBILITY_METRICS if (tkMacOSXUseCompatibilityMetrics) { width += 2*NATIVE_BUTTON_INSET; height += 2*NATIVE_BUTTON_INSET + NATIVE_BUTTON_EXTRA_H; } #endif Tk_GeometryRequest(butPtr->tkwin, width, height); Tk_SetInternalBorder(butPtr->tkwin, butPtr->inset); #ifdef TK_MAC_DEBUG_BUTTON TKLog(@"button %s bounds %@ titleRect %@ width %d height %d inset %d borderWidth %d", ((TkWindow *)butPtr->tkwin)->pathName, NSStringFromRect(bounds), NSStringFromRect(titleRect), width, height, butPtr->inset, butPtr->borderWidth); #endif } #pragma mark - #pragma mark Unix Buttons: /* *---------------------------------------------------------------------- * * DisplayUnixButton -- * * This procedure is invoked to display a button widget. It is * normally invoked as an idle handler. * * Results: * None. * * Side effects: * Commands are output to X to display the button in its * current mode. The REDRAW_PENDING flag is cleared. * *---------------------------------------------------------------------- */ void DisplayUnixButton( TkButton *butPtr) { GC gc; Tk_3DBorder border; Pixmap pixmap; int x = 0; /* Initialization only needed to stop compiler * warning. */ int y, relief; Tk_Window tkwin = butPtr->tkwin; int width = 0, height = 0, fullWidth, fullHeight; int textXOffset, textYOffset; int haveImage = 0, haveText = 0; int imageWidth, imageHeight; int imageXOffset = 0, imageYOffset = 0; /* image information that will be used to * restrict disabled pixmap as well */ border = butPtr->normalBorder; if ((butPtr->state == STATE_DISABLED) && (butPtr->disabledFg != NULL)) { gc = butPtr->disabledGC; } else if ((butPtr->state == STATE_ACTIVE) && !Tk_StrictMotif(butPtr->tkwin)) { gc = butPtr->activeTextGC; border = butPtr->activeBorder; } else { gc = butPtr->normalTextGC; } if ((butPtr->flags & SELECTED) && (butPtr->state != STATE_ACTIVE) && (butPtr->selectBorder != NULL) && !butPtr->indicatorOn) { border = butPtr->selectBorder; } relief = butPtr->relief; pixmap = (Pixmap) Tk_WindowId(tkwin); Tk_Fill3DRectangle(tkwin, pixmap, border, 0, 0, Tk_Width(tkwin), Tk_Height(tkwin), 0, TK_RELIEF_FLAT); /* * Display image or bitmap or text for button. */ if (butPtr->image != NULL) { Tk_SizeOfImage(butPtr->image, &width, &height); haveImage = 1; } else if (butPtr->bitmap != None) { Tk_SizeOfBitmap(butPtr->display, butPtr->bitmap, &width, &height); haveImage = 1; } imageWidth = width; imageHeight = height; haveText = (butPtr->textWidth != 0 && butPtr->textHeight != 0); if (butPtr->compound != COMPOUND_NONE && haveImage && haveText) { textXOffset = 0; textYOffset = 0; fullWidth = 0; fullHeight = 0; switch ((enum compound) butPtr->compound) { case COMPOUND_TOP: case COMPOUND_BOTTOM: /* * Image is above or below text. */ if (butPtr->compound == COMPOUND_TOP) { textYOffset = height + butPtr->padY; } else { imageYOffset = butPtr->textHeight + butPtr->padY; } fullHeight = height + butPtr->textHeight + butPtr->padY; fullWidth = (width > butPtr->textWidth ? width : butPtr->textWidth); textXOffset = (fullWidth - butPtr->textWidth)/2; imageXOffset = (fullWidth - width)/2; break; case COMPOUND_LEFT: case COMPOUND_RIGHT: /* * Image is left or right of text. */ if (butPtr->compound == COMPOUND_LEFT) { textXOffset = width + butPtr->padX; } else { imageXOffset = butPtr->textWidth + butPtr->padX; } fullWidth = butPtr->textWidth + butPtr->padX + width; fullHeight = (height > butPtr->textHeight ? height : butPtr->textHeight); textYOffset = (fullHeight - butPtr->textHeight)/2; imageYOffset = (fullHeight - height)/2; break; case COMPOUND_CENTER: /* * Image and text are superimposed. */ fullWidth = (width > butPtr->textWidth ? width : butPtr->textWidth); fullHeight = (height > butPtr->textHeight ? height : butPtr->textHeight); textXOffset = (fullWidth - butPtr->textWidth)/2; imageXOffset = (fullWidth - width)/2; textYOffset = (fullHeight - butPtr->textHeight)/2; imageYOffset = (fullHeight - height)/2; break; case COMPOUND_NONE: break; } TkComputeAnchor(butPtr->anchor, tkwin, butPtr->padX, butPtr->padY, fullWidth, fullHeight, &x, &y); imageXOffset += x; imageYOffset += y; if (butPtr->image != NULL) { /* * Do boundary clipping, so that Tk_RedrawImage is passed valid * coordinates. [Bug 979239] */ if (imageXOffset < 0) { imageXOffset = 0; } if (imageYOffset < 0) { imageYOffset = 0; } if (width > Tk_Width(tkwin)) { width = Tk_Width(tkwin); } if (height > Tk_Height(tkwin)) { height = Tk_Height(tkwin); } if ((width + imageXOffset) > Tk_Width(tkwin)) { imageXOffset = Tk_Width(tkwin) - width; } if ((height + imageYOffset) > Tk_Height(tkwin)) { imageYOffset = Tk_Height(tkwin) - height; } if ((butPtr->selectImage != NULL) && (butPtr->flags & SELECTED)) { Tk_RedrawImage(butPtr->selectImage, 0, 0, width, height, pixmap, imageXOffset, imageYOffset); } else if ((butPtr->tristateImage != NULL) && (butPtr->flags & TRISTATED)) { Tk_RedrawImage(butPtr->tristateImage, 0, 0, width, height, pixmap, imageXOffset, imageYOffset); } else { Tk_RedrawImage(butPtr->image, 0, 0, width, height, pixmap, imageXOffset, imageYOffset); } } else { XSetClipOrigin(butPtr->display, gc, imageXOffset, imageYOffset); XCopyPlane(butPtr->display, butPtr->bitmap, pixmap, gc, 0, 0, (unsigned int) width, (unsigned int) height, imageXOffset, imageYOffset, 1); XSetClipOrigin(butPtr->display, gc, 0, 0); } Tk_DrawTextLayout(butPtr->display, pixmap, gc, butPtr->textLayout, x + textXOffset, y + textYOffset, 0, -1); Tk_UnderlineTextLayout(butPtr->display, pixmap, gc, butPtr->textLayout, x + textXOffset, y + textYOffset, butPtr->underline); y += fullHeight/2; } else { if (haveImage) { TkComputeAnchor(butPtr->anchor, tkwin, 0, 0, width, height, &x, &y); imageXOffset += x; imageYOffset += y; if (butPtr->image != NULL) { /* * Do boundary clipping, so that Tk_RedrawImage is passed * valid coordinates. [Bug 979239] */ if (imageXOffset < 0) { imageXOffset = 0; } if (imageYOffset < 0) { imageYOffset = 0; } if (width > Tk_Width(tkwin)) { width = Tk_Width(tkwin); } if (height > Tk_Height(tkwin)) { height = Tk_Height(tkwin); } if ((width + imageXOffset) > Tk_Width(tkwin)) { imageXOffset = Tk_Width(tkwin) - width; } if ((height + imageYOffset) > Tk_Height(tkwin)) { imageYOffset = Tk_Height(tkwin) - height; } if ((butPtr->selectImage != NULL) && (butPtr->flags & SELECTED)) { Tk_RedrawImage(butPtr->selectImage, 0, 0, width, height, pixmap, imageXOffset, imageYOffset); } else if ((butPtr->tristateImage != NULL) && (butPtr->flags & TRISTATED)) { Tk_RedrawImage(butPtr->tristateImage, 0, 0, width, height, pixmap, imageXOffset, imageYOffset); } else { Tk_RedrawImage(butPtr->image, 0, 0, width, height, pixmap, imageXOffset, imageYOffset); } } else { XSetClipOrigin(butPtr->display, gc, x, y); XCopyPlane(butPtr->display, butPtr->bitmap, pixmap, gc, 0, 0, (unsigned int) width, (unsigned int) height, x, y, 1); XSetClipOrigin(butPtr->display, gc, 0, 0); } y += height/2; } else { TkComputeAnchor(butPtr->anchor, tkwin, butPtr->padX, butPtr->padY, butPtr->textWidth, butPtr->textHeight, &x, &y); Tk_DrawTextLayout(butPtr->display, pixmap, gc, butPtr->textLayout, x, y, 0, -1); Tk_UnderlineTextLayout(butPtr->display, pixmap, gc, butPtr->textLayout, x, y, butPtr->underline); y += butPtr->textHeight/2; } } /* * If the button is disabled with a stipple rather than a special * foreground color, generate the stippled effect. If the widget is * selected and we use a different background color when selected, must * temporarily modify the GC so the stippling is the right color. */ if ((butPtr->state == STATE_DISABLED) && ((butPtr->disabledFg == NULL) || (butPtr->image != NULL))) { if ((butPtr->flags & SELECTED) && !butPtr->indicatorOn && (butPtr->selectBorder != NULL)) { XSetForeground(butPtr->display, butPtr->stippleGC, Tk_3DBorderColor(butPtr->selectBorder)->pixel); } /* * Stipple the whole button if no disabledFg was specified, otherwise * restrict stippling only to displayed image */ if (butPtr->disabledFg == NULL) { XFillRectangle(butPtr->display, pixmap, butPtr->stippleGC, 0, 0, (unsigned) Tk_Width(tkwin), (unsigned) Tk_Height(tkwin)); } else { XFillRectangle(butPtr->display, pixmap, butPtr->stippleGC, imageXOffset, imageYOffset, (unsigned) imageWidth, (unsigned) imageHeight); } if ((butPtr->flags & SELECTED) && !butPtr->indicatorOn && (butPtr->selectBorder != NULL)) { XSetForeground(butPtr->display, butPtr->stippleGC, Tk_3DBorderColor(butPtr->normalBorder)->pixel); } } /* * Draw the border and traversal highlight last. This way, if the button's * contents overflow they'll be covered up by the border. This code is * complicated by the possible combinations of focus highlight and default * rings. We draw the focus and highlight rings using the highlight border * and highlight foreground color. */ if (relief != TK_RELIEF_FLAT) { int inset = butPtr->highlightWidth; if (butPtr->defaultState == DEFAULT_ACTIVE) { /* * Draw the default ring with 2 pixels of space between the * default ring and the button and the default ring and the focus * ring. Note that we need to explicitly draw the space in the * highlightBorder color to ensure that we overwrite any overflow * text and/or a different button background color. */ Tk_Draw3DRectangle(tkwin, pixmap, butPtr->highlightBorder, inset, inset, Tk_Width(tkwin) - 2*inset, Tk_Height(tkwin) - 2*inset, 2, TK_RELIEF_FLAT); inset += 2; Tk_Draw3DRectangle(tkwin, pixmap, butPtr->highlightBorder, inset, inset, Tk_Width(tkwin) - 2*inset, Tk_Height(tkwin) - 2*inset, 1, TK_RELIEF_SUNKEN); inset++; Tk_Draw3DRectangle(tkwin, pixmap, butPtr->highlightBorder, inset, inset, Tk_Width(tkwin) - 2*inset, Tk_Height(tkwin) - 2*inset, 2, TK_RELIEF_FLAT); inset += 2; } else if (butPtr->defaultState == DEFAULT_NORMAL) { /* * Leave room for the default ring and write over any text or * background color. */ Tk_Draw3DRectangle(tkwin, pixmap, butPtr->highlightBorder, 0, 0, Tk_Width(tkwin), Tk_Height(tkwin), 5, TK_RELIEF_FLAT); inset += 5; } /* * Draw the button border. */ Tk_Draw3DRectangle(tkwin, pixmap, border, inset, inset, Tk_Width(tkwin) - 2*inset, Tk_Height(tkwin) - 2*inset, butPtr->borderWidth, relief); } if (butPtr->highlightWidth > 0) { GC gc; if (butPtr->flags & GOT_FOCUS) { gc = Tk_GCForColor(butPtr->highlightColorPtr, pixmap); } else { gc = Tk_GCForColor(Tk_3DBorderColor(butPtr->highlightBorder), pixmap); } /* * Make sure the focus ring shrink-wraps the actual button, not the * padding space left for a default ring. */ if (butPtr->defaultState == DEFAULT_NORMAL) { TkDrawInsetFocusHighlight(tkwin, gc, butPtr->highlightWidth, pixmap, 5); } else { Tk_DrawFocusHighlight(tkwin, gc, butPtr->highlightWidth, pixmap); } } } /* *---------------------------------------------------------------------- * * ComputeUnixButtonGeometry -- * * After changes in a button's text or bitmap, this procedure * recomputes the button's geometry and passes this information * along to the geometry manager for the window. * * Results: * None. * * Side effects: * The button's window may change size. * *---------------------------------------------------------------------- */ void ComputeUnixButtonGeometry( register TkButton *butPtr) /* Button whose geometry may have changed. */ { int width, height, avgWidth, txtWidth, txtHeight; int haveImage = 0, haveText = 0; Tk_FontMetrics fm; butPtr->inset = butPtr->highlightWidth + butPtr->borderWidth; /* * Leave room for the default ring if needed. */ if (butPtr->defaultState != DEFAULT_DISABLED) { butPtr->inset += 5; } butPtr->indicatorSpace = 0; width = 0; height = 0; txtWidth = 0; txtHeight = 0; avgWidth = 0; if (butPtr->image != NULL) { Tk_SizeOfImage(butPtr->image, &width, &height); haveImage = 1; } else if (butPtr->bitmap != None) { Tk_SizeOfBitmap(butPtr->display, butPtr->bitmap, &width, &height); haveImage = 1; } if (haveImage == 0 || butPtr->compound != COMPOUND_NONE) { Tk_FreeTextLayout(butPtr->textLayout); butPtr->textLayout = Tk_ComputeTextLayout(butPtr->tkfont, Tcl_GetString(butPtr->textPtr), -1, butPtr->wrapLength, butPtr->justify, 0, &butPtr->textWidth, &butPtr->textHeight); txtWidth = butPtr->textWidth; txtHeight = butPtr->textHeight; avgWidth = Tk_TextWidth(butPtr->tkfont, "0", 1); Tk_GetFontMetrics(butPtr->tkfont, &fm); haveText = (txtWidth != 0 && txtHeight != 0); } /* * If the button is compound (i.e., it shows both an image and text), the * new geometry is a combination of the image and text geometry. We only * honor the compound bit if the button has both text and an image, * because otherwise it is not really a compound button. */ if (butPtr->compound != COMPOUND_NONE && haveImage && haveText) { switch ((enum compound) butPtr->compound) { case COMPOUND_TOP: case COMPOUND_BOTTOM: /* * Image is above or below text. */ height += txtHeight + butPtr->padY; width = (width > txtWidth ? width : txtWidth); break; case COMPOUND_LEFT: case COMPOUND_RIGHT: /* * Image is left or right of text. */ width += txtWidth + butPtr->padX; height = (height > txtHeight ? height : txtHeight); break; case COMPOUND_CENTER: /* * Image and text are superimposed. */ width = (width > txtWidth ? width : txtWidth); height = (height > txtHeight ? height : txtHeight); break; case COMPOUND_NONE: break; } if (butPtr->width > 0) { width = butPtr->width; } if (butPtr->height > 0) { height = butPtr->height; } width += 2*butPtr->padX; height += 2*butPtr->padY; } else { if (haveImage) { if (butPtr->width > 0) { width = butPtr->width; } if (butPtr->height > 0) { height = butPtr->height; } } else { width = txtWidth; height = txtHeight; if (butPtr->width > 0) { width = butPtr->width * avgWidth; } if (butPtr->height > 0) { height = butPtr->height * fm.linespace; } } } if (!haveImage) { width += 2*butPtr->padX; height += 2*butPtr->padY; } Tk_GeometryRequest(butPtr->tkwin, (int) (width + 2*butPtr->inset), (int) (height + 2*butPtr->inset)); Tk_SetInternalBorder(butPtr->tkwin, butPtr->inset); } /* * Local Variables: * mode: objc * c-basic-offset: 4 * fill-column: 79 * coding: utf-8 * End: */