diff options
Diffstat (limited to 'macosx/tkMacOSXScrlbr.c')
| -rw-r--r-- | macosx/tkMacOSXScrlbr.c | 794 |
1 files changed, 313 insertions, 481 deletions
diff --git a/macosx/tkMacOSXScrlbr.c b/macosx/tkMacOSXScrlbr.c index 405558b..afb8e52 100644 --- a/macosx/tkMacOSXScrlbr.c +++ b/macosx/tkMacOSXScrlbr.c @@ -1,5 +1,5 @@ /* - * tkMacOSXScrollbar.c -- + * tkMacOSXScrollbar.c -- * * This file implements the Macintosh specific portion of the scrollbar * widget. @@ -7,79 +7,24 @@ * Copyright (c) 1996 by Sun Microsystems, Inc. * Copyright 2001-2009, Apple Inc. * Copyright (c) 2006-2009 Daniel A. Steffen <das@users.sourceforge.net> - * + * Copyright (c) 2015 Kevin Walzer/WordTech Commununications LLC. * 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 "tkInt.h" #include "tkScrollbar.h" +#include "tkMacOSXPrivate.h" -/* -#ifdef TK_MAC_DEBUG -#define TK_MAC_DEBUG_SCROLLBAR -#endif -*/ - -NSRect TkMacOSXGetScrollFrame(TkScrollbar *scrlPtr); - -/* - * A subclass of NSScroller with sanity checking: - * - * NSScrollers created by Tk will have their tag set to a pointer to the - * TkScrollbar which manages the NSScroller. This allows an NSScroller to be - * aware of the state of its Tk parent. This subclass overrides the drawRect - * method so that it will not draw itself if the widget is completely outside - * of its container. - */ - -@interface TkNSScroller: NSScroller --(void) drawRect:(NSRect)dirtyRect; - -@end - -@implementation TkNSScroller - - - (void)drawRect:(NSRect)dirtyRect - { - NSInteger tag = [self tag]; - if ( tag != -1) { - TkScrollbar *scrollPtr = (TkScrollbar *)tag; - MacDrawable* macWin = (MacDrawable *)scrollPtr; - Tk_Window tkwin = scrollPtr->tkwin; - NSRect Tkframe = TkMacOSXGetScrollFrame(scrollPtr); - /* 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. - */ - 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 || y + widget_height < 0 ) { - return; - } - - int parent_width = Tk_Width(Tk_Parent(tkwin)); - int widget_width = Tk_Width(tkwin); - int x = Tk_X(tkwin); - if (x > parent_width || x + widget_width < 0) { - return; - } - } - } - [super drawRect:dirtyRect]; - } -@end +#define MIN_SCROLLBAR_VALUE 0 +/*Borrowed from ttkMacOSXTheme.c to provide appropriate scaling of scrollbar values.*/ +#ifdef __LP64__ +#define RangeToFactor(maximum) (((double) (INT_MAX >> 1)) / (maximum)) +#else +#define RangeToFactor(maximum) (((double) (LONG_MAX >> 1)) / (maximum)) +#endif /* __LP64__ */ /* @@ -87,33 +32,15 @@ NSRect TkMacOSXGetScrollFrame(TkScrollbar *scrlPtr); */ typedef struct MacScrollbar { - TkScrollbar info; - TkNSScroller *scroller; - int variant; + TkScrollbar information; /* Generic scrollbar info. */ + GC troughGC; /* For drawing trough. */ + GC copyGC; /* Used for copying from pixmap onto screen. */ } MacScrollbar; -typedef struct ScrollbarMetrics { - SInt32 width, minThumbHeight; - int minHeight, topArrowHeight, bottomArrowHeight; - NSControlSize controlSize; -} ScrollbarMetrics; - -static ScrollbarMetrics metrics[2] = { - {15, 54, 26, 14, 14, NSRegularControlSize}, /* kThemeScrollBarMedium */ - {11, 40, 20, 10, 10, NSSmallControlSize}, /* kThemeScrollBarSmall */ -}; - /* - * Declarations for functions defined in this file. - */ - -static void UpdateScrollbarMetrics(void); -static void ScrollbarEventProc(ClientData clientData, - XEvent *eventPtr); - - -/* - * The class procedure table for the scrollbar widget. + * The class procedure table for the scrollbar widget. All fields except size + * are left initialized to NULL, which should happen automatically since the + * variable is declared at this scope. */ const Tk_ClassProcs tkpScrollbarProcs = { @@ -122,151 +49,38 @@ const Tk_ClassProcs tkpScrollbarProcs = { NULL, /* createProc */ NULL /* modalProc */ }; - -#pragma mark TKApplication(TKScrlbr) - -#define NSAppleAquaScrollBarVariantChanged @"AppleAquaScrollBarVariantChanged" - -@implementation TKApplication(TKScrlbr) -- (void) tkScroller: (TkNSScroller *) scroller -{ - NSScrollerPart hitPart = [scroller hitPart]; - TkScrollbar *scrollPtr = (TkScrollbar *)[scroller tag]; - Tcl_DString cmdString; - Tcl_Interp *interp; - int result; - - if (!scrollPtr || !scrollPtr->command || !scrollPtr->commandSize || - hitPart == NSScrollerNoPart) { - return; - } - Tcl_DStringInit(&cmdString); - Tcl_DStringAppend(&cmdString, scrollPtr->command, - scrollPtr->commandSize); - switch (hitPart) { - case NSScrollerKnob: - case NSScrollerKnobSlot: { - char valueString[TCL_DOUBLE_SPACE]; - - Tcl_PrintDouble(NULL, [scroller doubleValue] * - (1.0 - [scroller knobProportion]), valueString); - Tcl_DStringAppendElement(&cmdString, "moveto"); - Tcl_DStringAppendElement(&cmdString, valueString); - break; - } - case NSScrollerDecrementLine: - case NSScrollerIncrementLine: - Tcl_DStringAppendElement(&cmdString, "scroll"); - Tcl_DStringAppendElement(&cmdString, - (hitPart == NSScrollerDecrementLine) ? "-1" : "1"); - Tcl_DStringAppendElement(&cmdString, "unit"); - break; - case NSScrollerDecrementPage: - case NSScrollerIncrementPage: - Tcl_DStringAppendElement(&cmdString, "scroll"); - Tcl_DStringAppendElement(&cmdString, - (hitPart == NSScrollerDecrementPage) ? "-1" : "1"); - Tcl_DStringAppendElement(&cmdString, "page"); - break; - } - interp = scrollPtr->interp; - Tcl_Preserve(interp); - Tcl_Preserve(scrollPtr); - result = Tcl_EvalEx(interp, Tcl_DStringValue(&cmdString), - Tcl_DStringLength(&cmdString), TCL_EVAL_GLOBAL); - if (result != TCL_OK && result != TCL_CONTINUE && result != TCL_BREAK) { - Tcl_AddErrorInfo(interp, "\n (scrollbar command)"); - Tcl_BackgroundException(interp, result); - } - Tcl_Release(scrollPtr); - Tcl_Release(interp); - Tcl_DStringFree(&cmdString); -#ifdef TK_MAC_DEBUG_SCROLLBAR - TKLog(@"scroller %s value %f knobProportion %f", - ((TkWindow *)scrollPtr->tkwin)->pathName, [scroller doubleValue], - [scroller knobProportion]); -#endif -} -- (void) scrollBarVariantChanged: (NSNotification *) notification -{ -#ifdef TK_MAC_DEBUG_NOTIFICATIONS - TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, notification); -#endif - UpdateScrollbarMetrics(); -} +/*Information on scrollbar layout, metrics, and draw info.*/ +typedef struct ScrollbarMetrics { + SInt32 width, minThumbHeight; + int minHeight, topArrowHeight, bottomArrowHeight; + NSControlSize controlSize; +} ScrollbarMetrics; -- (void) _setupScrollBarNotifications -{ - NSNotificationCenter *nc = [NSNotificationCenter defaultCenter]; +static ScrollbarMetrics metrics[2] = { + {15, 54, 26, 14, 14, NSRegularControlSize}, /* kThemeScrollBarMedium */ + {11, 40, 20, 10, 10, NSSmallControlSize}, /* kThemeScrollBarSmall */ +}; -#define observe(n, s) [nc addObserver:self selector:@selector(s) name:(n) object:nil] - observe(NSAppleAquaScrollBarVariantChanged, scrollBarVariantChanged:); -#undef observe +HIThemeTrackDrawInfo info = { + .version = 0, + .min = 0.0, + .max = 100.0, + .attributes = kThemeTrackShowThumb, + .kind = kThemeScrollBarMedium, +}; - UpdateScrollbarMetrics(); -} -@end -#pragma mark - - /* - *---------------------------------------------------------------------- - * - * UpdateScrollbarMetrics -- - * - * This function retrieves the current system metrics for a scrollbar. - * - * Results: - * None. - * - * Side effects: - * Updates the geometry cache info for all scrollbars. - * - *---------------------------------------------------------------------- + * Forward declarations for procedures defined later in this file: */ -static void -UpdateScrollbarMetrics(void) -{ - const short height = 100, width = 50; - HIThemeTrackDrawInfo info = { - .version = 0, - .bounds = {{0, 0}, {width, height}}, - .min = 0, - .max = 1, - .value = 0, - .attributes = kThemeTrackShowThumb, - .enableState = kThemeTrackActive, - .trackInfo.scrollbar = {.viewsize = 1, .pressState = 0}, - }; - CGRect bounds; - - ChkErr(GetThemeMetric, kThemeMetricScrollBarWidth, &metrics[0].width); - ChkErr(GetThemeMetric, kThemeMetricScrollBarMinThumbHeight, - &metrics[0].minThumbHeight); - info.kind = kThemeScrollBarMedium; - ChkErr(HIThemeGetTrackDragRect, &info, &bounds); - metrics[0].topArrowHeight = bounds.origin.y; - metrics[0].bottomArrowHeight = height - (bounds.origin.y + - bounds.size.height); - metrics[0].minHeight = metrics[0].minThumbHeight + - metrics[0].topArrowHeight + metrics[0].bottomArrowHeight; - ChkErr(GetThemeMetric, kThemeMetricSmallScrollBarWidth, &metrics[1].width); - ChkErr(GetThemeMetric, kThemeMetricSmallScrollBarMinThumbHeight, - &metrics[1].minThumbHeight); - info.kind = kThemeScrollBarSmall; - ChkErr(HIThemeGetTrackDragRect, &info, &bounds); - metrics[1].topArrowHeight = bounds.origin.y; - metrics[1].bottomArrowHeight = height - (bounds.origin.y + - bounds.size.height); - metrics[1].minHeight = metrics[1].minThumbHeight + - metrics[1].topArrowHeight + metrics[1].bottomArrowHeight; - - sprintf(tkDefScrollbarWidth, "%d", (int)(metrics[0].width)); -} - +static void ScrollbarEventProc(ClientData clientData, XEvent *eventPtr); +static int ScrollbarPress(TkScrollbar *scrollPtr, XEvent *eventPtr); +static void UpdateControlValues(TkScrollbar *scrollPtr); + + /* *---------------------------------------------------------------------- * @@ -285,41 +99,19 @@ UpdateScrollbarMetrics(void) TkScrollbar * TkpCreateScrollbar( - Tk_Window tkwin) + Tk_Window tkwin) { - MacScrollbar *scrollPtr = ckalloc(sizeof(MacScrollbar)); - scrollPtr->scroller = nil; - Tk_CreateEventHandler(tkwin, StructureNotifyMask|FocusChangeMask| - ActivateMask|ExposureMask, ScrollbarEventProc, scrollPtr); - return (TkScrollbar *) scrollPtr; -} - -/* - *---------------------------------------------------------------------- - * - * TkpDestroyScrollbar -- - * - * Free data structures associated with the scrollbar control. - * - * Results: - * None. - * - * Side effects: - * None. - * - *---------------------------------------------------------------------- - */ + static int initialized = 0; + MacScrollbar *scrollPtr = ckalloc(sizeof(MacScrollbar)); -void -TkpDestroyScrollbar( - TkScrollbar *scrollPtr) -{ - MacScrollbar *macScrollPtr = (MacScrollbar *) scrollPtr; - TkNSScroller *scroller = macScrollPtr->scroller; - [scroller setTag:(NSInteger)-1]; + scrollPtr->troughGC = None; + scrollPtr->copyGC = None; + TkWindow *winPtr = (TkWindow *)tkwin; - TkMacOSXMakeCollectableAndRelease(macScrollPtr->scroller); + Tk_CreateEventHandler(tkwin,ExposureMask|StructureNotifyMask|FocusChangeMask|ButtonPressMask|VisibilityChangeMask, ScrollbarEventProc, scrollPtr); + + return (TkScrollbar *) scrollPtr; } /* @@ -328,8 +120,8 @@ TkpDestroyScrollbar( * TkpDisplayScrollbar -- * * This procedure redraws the contents of a scrollbar window. It is - * invoked as a do-when-idle handler, so it only runs when there's nothing - * else for the application to do. + * invoked as a do-when-idle handler, so it only runs when there's + * nothing else for the application to do. * * Results: * None. @@ -342,95 +134,67 @@ TkpDestroyScrollbar( void TkpDisplayScrollbar( - ClientData clientData) /* Information about window. */ + ClientData clientData) /* Information about window. */ { - TkScrollbar *scrollPtr = clientData; + register TkScrollbar *scrollPtr = (TkScrollbar *) clientData; + register Tk_Window tkwin = scrollPtr->tkwin; + + + if ((scrollPtr->tkwin == NULL) || !Tk_IsMapped(tkwin)) { + return; + } + MacScrollbar *macScrollPtr = clientData; - TkNSScroller *scroller = macScrollPtr->scroller; - Tk_Window tkwin = scrollPtr->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; - double knobProportion = scrollPtr->lastFraction - scrollPtr->firstFraction; + .ty = viewHeight}; + scrollPtr->flags &= ~REDRAW_PENDING; if (!scrollPtr->tkwin || !Tk_IsMapped(tkwin) || !view || - !TkMacOSXSetupDrawingContext((Drawable) macWin, NULL, 1, &dc)) { - return; + !TkMacOSXSetupDrawingContext((Drawable) macWin, NULL, 1, &dc)) { + return; } + CGContextConcatCTM(dc.context, t); + + /*Draw Unix-style scroll trough to provide rect for native scrollbar.*/ if (scrollPtr->highlightWidth != 0) { - GC fgGC, bgGC; - - bgGC = Tk_GCForColor(scrollPtr->highlightBgColorPtr, (Pixmap) macWin); - if (scrollPtr->flags & GOT_FOCUS) { - fgGC = Tk_GCForColor(scrollPtr->highlightColorPtr, (Pixmap) macWin); - } else { - fgGC = bgGC; - } - TkpDrawHighlightBorder(tkwin, fgGC, bgGC, scrollPtr->highlightWidth, - (Pixmap) macWin); - } - Tk_Draw3DRectangle(tkwin, (Pixmap) macWin, scrollPtr->bgBorder, - scrollPtr->highlightWidth, scrollPtr->highlightWidth, - Tk_Width(tkwin) - 2*scrollPtr->highlightWidth, - Tk_Height(tkwin) - 2*scrollPtr->highlightWidth, - scrollPtr->borderWidth, scrollPtr->relief); - Tk_Fill3DRectangle(tkwin, (Pixmap) macWin, scrollPtr->bgBorder, - scrollPtr->inset, scrollPtr->inset, - Tk_Width(tkwin) - 2*scrollPtr->inset, - Tk_Height(tkwin) - 2*scrollPtr->inset, 0, TK_RELIEF_FLAT); - if ([scroller superview] != view) { - [view addSubview:scroller]; + GC fgGC, bgGC; + + bgGC = Tk_GCForColor(scrollPtr->highlightBgColorPtr, (Pixmap) macWin); + if (scrollPtr->flags & GOT_FOCUS) { + fgGC = Tk_GCForColor(scrollPtr->highlightColorPtr, (Pixmap) macWin); + } else { + fgGC = bgGC; + } + TkpDrawHighlightBorder(tkwin, fgGC, bgGC, scrollPtr->highlightWidth, + (Pixmap) macWin); } - frame = NSMakeRect(macWin->xOff, macWin->yOff, Tk_Width(tkwin), - Tk_Height(tkwin)); - frame = NSInsetRect(frame, scrollPtr->inset, scrollPtr->inset); - frame.origin.y = viewHeight - (frame.origin.y + frame.size.height); - NSWindow *w = [view window]; - //This uses a private API call that is no longer needed on systems >= 10.7. - #if 0 - if ([w showsResizeIndicator]) { - NSRect growBox = [view convertRect:[w _growBoxRect] fromView:nil]; - - if (NSIntersectsRect(growBox, frame)) { - if (scrollPtr->vertical) { - CGFloat y = frame.origin.y; + Tk_Draw3DRectangle(tkwin, (Pixmap) macWin, scrollPtr->bgBorder, + scrollPtr->highlightWidth, scrollPtr->highlightWidth, + Tk_Width(tkwin) - 2*scrollPtr->highlightWidth, + Tk_Height(tkwin) - 2*scrollPtr->highlightWidth, + scrollPtr->borderWidth, scrollPtr->relief); + Tk_Fill3DRectangle(tkwin, (Pixmap) macWin, scrollPtr->bgBorder, + scrollPtr->inset, scrollPtr->inset, + Tk_Width(tkwin) - 2*scrollPtr->inset, + Tk_Height(tkwin) - 2*scrollPtr->inset, 0, TK_RELIEF_FLAT); - frame.origin.y = growBox.origin.y + growBox.size.height; - frame.size.height -= frame.origin.y - y; - } else { - frame.size.width = growBox.origin.x - frame.origin.x; - } - TkMacOSXSetScrollbarGrow(winPtr, true); - } - } - #endif - if (!NSEqualRects(frame, [scroller frame])) { - [scroller setFrame:frame]; - } - [scroller setEnabled:(knobProportion < 1.0 && - (scrollPtr->vertical ? frame.size.height : frame.size.width) > - metrics[macScrollPtr->variant].minHeight)]; - // [scroller setEnabled: YES]; - [scroller setDoubleValue:scrollPtr->firstFraction / (1.0 - knobProportion)]; - [scroller setKnobProportion:knobProportion]; - [scroller displayRectIgnoringOpacity:[scroller bounds]]; + /*Update values and draw in native rect.*/ + UpdateControlValues(scrollPtr); + HIThemeDrawTrack (&info, 0, dc.context, kHIThemeOrientationNormal); TkMacOSXRestoreDrawingContext(&dc); - #ifdef TK_MAC_DEBUG_SCROLLBAR - TKLog(@"scroller %s frame %@ width %d height %d", - ((TkWindow *)scrollPtr->tkwin)->pathName, NSStringFromRect(frame), - Tk_Width(tkwin), Tk_Height(tkwin)); - #endif + + scrollPtr->flags &= ~REDRAW_PENDING; } - + /* *---------------------------------------------------------------------- * @@ -449,123 +213,106 @@ TkpDisplayScrollbar( *---------------------------------------------------------------------- */ -void +extern void TkpComputeScrollbarGeometry( - register TkScrollbar *scrollPtr) - /* Scrollbar whose geometry may have - * changed. */ + register TkScrollbar *scrollPtr) +/* Scrollbar whose geometry may have + * changed. */ { - MacScrollbar *macScrollPtr = (MacScrollbar *) scrollPtr; - TkNSScroller *scroller = macScrollPtr->scroller; + int width, height, variant, fieldLength; if (scrollPtr->highlightWidth < 0) { - scrollPtr->highlightWidth = 0; + scrollPtr->highlightWidth = 0; } scrollPtr->inset = scrollPtr->highlightWidth + scrollPtr->borderWidth; - width = Tk_Width(scrollPtr->tkwin) - 2 * scrollPtr->inset; - height = Tk_Height(scrollPtr->tkwin) - 2 * scrollPtr->inset; - variant = ((scrollPtr->vertical ? width : height) < metrics[0].width) ? - 1 : 0; - macScrollPtr->variant = variant; - if (scroller) { - NSSize size = [scroller frame].size; - - if ((size.width > size.height) ^ !scrollPtr->vertical) { - /* - * Orientation changed, need new scroller. - */ - - if ([scroller superview]) { - [scroller removeFromSuperviewWithoutNeedingDisplay]; - } - TkMacOSXMakeCollectableAndRelease(scroller); - } - } - if (!scroller) { - if ((width > height) ^ !scrollPtr->vertical) { - /* -[NSScroller initWithFrame:] determines horizontalness for the - * lifetime of the scroller via isHoriz = (width > height) */ - if (scrollPtr->vertical) { - width = height; - } else if (width > 1) { - height = width - 1; - } else { - height = 1; - width = 2; - } - } - scroller = [[TkNSScroller alloc] initWithFrame: - NSMakeRect(0, 0, width, height)]; - macScrollPtr->scroller = TkMacOSXMakeUncollectable(scroller); - [scroller setAction:@selector(tkScroller:)]; - [scroller setTarget:NSApp]; - [scroller setTag:(NSInteger)scrollPtr]; - } - [[scroller cell] setControlSize:metrics[variant].controlSize]; - + variant = ((scrollPtr->vertical ? Tk_Width(scrollPtr->tkwin) : + Tk_Height(scrollPtr->tkwin)) - 2 * scrollPtr->inset + < metrics[0].width) ? 1 : 0; scrollPtr->arrowLength = (metrics[variant].topArrowHeight + - metrics[variant].bottomArrowHeight) / 2; + metrics[variant].bottomArrowHeight) / 2; fieldLength = (scrollPtr->vertical ? Tk_Height(scrollPtr->tkwin) - : Tk_Width(scrollPtr->tkwin)) - - 2 * (scrollPtr->arrowLength + scrollPtr->inset); + : Tk_Width(scrollPtr->tkwin)) + - 2 * (scrollPtr->arrowLength + scrollPtr->inset); if (fieldLength < 0) { - fieldLength = 0; + fieldLength = 0; } scrollPtr->sliderFirst = fieldLength * scrollPtr->firstFraction; scrollPtr->sliderLast = fieldLength * scrollPtr->lastFraction; /* - * Adjust the slider so that some piece of it is always displayed in the - * scrollbar and so that it has at least a minimal width (so it can be - * grabbed with the mouse). + * Adjust the slider so that some piece of it is always + * displayed in the scrollbar and so that it has at least + * a minimal width (so it can be grabbed with the mouse). */ if (scrollPtr->sliderFirst > (fieldLength - 2*scrollPtr->borderWidth)) { - scrollPtr->sliderFirst = fieldLength - 2*scrollPtr->borderWidth; + scrollPtr->sliderFirst = fieldLength - 2*scrollPtr->borderWidth; } if (scrollPtr->sliderFirst < 0) { - scrollPtr->sliderFirst = 0; + scrollPtr->sliderFirst = 0; } if (scrollPtr->sliderLast < (scrollPtr->sliderFirst + - metrics[variant].minThumbHeight)) { - scrollPtr->sliderLast = scrollPtr->sliderFirst + - metrics[variant].minThumbHeight; + metrics[variant].minThumbHeight)) { + scrollPtr->sliderLast = scrollPtr->sliderFirst + + metrics[variant].minThumbHeight; } if (scrollPtr->sliderLast > fieldLength) { - scrollPtr->sliderLast = fieldLength; + scrollPtr->sliderLast = fieldLength; } scrollPtr->sliderFirst += scrollPtr->inset + - metrics[variant].topArrowHeight; + metrics[variant].topArrowHeight; scrollPtr->sliderLast += scrollPtr->inset + - metrics[variant].bottomArrowHeight; + metrics[variant].bottomArrowHeight; /* - * Register the desired geometry for the window (leave enough space for - * the two arrows plus a minimum-size slider, plus border around the whole - * window, if any). Then arrange for the window to be redisplayed. + * Register the desired geometry for the window (leave enough space + * for the two arrows plus a minimum-size slider, plus border around + * the whole window, if any). Then arrange for the window to be + * redisplayed. */ if (scrollPtr->vertical) { - Tk_GeometryRequest(scrollPtr->tkwin, scrollPtr->width + - 2 * scrollPtr->inset, 2 * (scrollPtr->arrowLength + - scrollPtr->borderWidth + scrollPtr->inset) + - metrics[variant].minThumbHeight); + Tk_GeometryRequest(scrollPtr->tkwin, scrollPtr->width + 2 * scrollPtr->inset, 2 * (scrollPtr->arrowLength + scrollPtr->borderWidth + scrollPtr->inset) + metrics[variant].minThumbHeight); } else { - Tk_GeometryRequest(scrollPtr->tkwin, 2 * (scrollPtr->arrowLength + - scrollPtr->borderWidth + scrollPtr->inset) + - metrics[variant].minThumbHeight, scrollPtr->width + - 2 * scrollPtr->inset); + Tk_GeometryRequest(scrollPtr->tkwin, 2 * (scrollPtr->arrowLength + scrollPtr->borderWidth + scrollPtr->inset) + metrics[variant].minThumbHeight, scrollPtr->width + 2 * scrollPtr->inset); } Tk_SetInternalBorder(scrollPtr->tkwin, scrollPtr->inset); -#ifdef TK_MAC_DEBUG_SCROLLBAR - TKLog(@"scroller %s bounds %@ width %d height %d inset %d borderWidth %d", - ((TkWindow *)scrollPtr->tkwin)->pathName, - NSStringFromRect([scroller bounds]), - width, height, scrollPtr->inset, scrollPtr->borderWidth); -#endif + } - + +/* + *---------------------------------------------------------------------- + * + * TkpDestroyScrollbar -- + * + * Free data structures associated with the scrollbar control. + * + * Results: + * None. + * + * Side effects: + * Frees the GCs associated with the scrollbar. + * + *---------------------------------------------------------------------- + */ + +void +TkpDestroyScrollbar( + TkScrollbar *scrollPtr) +{ + MacScrollbar *macScrollPtr = (MacScrollbar *)scrollPtr; + + if (macScrollPtr->troughGC != None) { + Tk_FreeGC(scrollPtr->display, macScrollPtr->troughGC); + } + if (macScrollPtr->copyGC != None) { + Tk_FreeGC(scrollPtr->display, macScrollPtr->copyGC); + } + + macScrollPtr=NULL; +} + /* *---------------------------------------------------------------------- * @@ -579,19 +326,20 @@ TkpComputeScrollbarGeometry( * None. * * Side effects: - * None. + * Configuration info may get changed. * *---------------------------------------------------------------------- */ void TkpConfigureScrollbar( - register TkScrollbar *scrollPtr) - /* Information about widget; may or may not - * already have values for some fields. */ + register TkScrollbar *scrollPtr) +/* Information about widget; may or may not + * already have values for some fields. */ { + } - + /* *-------------------------------------------------------------- * @@ -616,30 +364,159 @@ TkpScrollbarPosition( /* Scrollbar widget record. */ int x, int y) /* Coordinates within scrollPtr's window. */ { - TkNSScroller *scroller = ((MacScrollbar *) scrollPtr)->scroller; - MacDrawable *macWin = (MacDrawable *) - ((TkWindow *) scrollPtr->tkwin)->window; - NSView *view = TkMacOSXDrawableView(macWin); - switch ([scroller testPart:NSMakePoint(macWin->xOff + x, - [view bounds].size.height - (macWin->yOff + y))]) { - case NSScrollerDecrementLine: + /*Using code from tkUnixScrlbr.c because Unix scroll bindings are driving the display at the script level. All the Mac scrollbar has to do is re-draw itself.*/ + + int length, width, tmp; + register const int inset = scrollPtr->inset; + + if (scrollPtr->vertical) { + length = Tk_Height(scrollPtr->tkwin); + width = Tk_Width(scrollPtr->tkwin); + } else { + tmp = x; + x = y; + y = tmp; + length = Tk_Width(scrollPtr->tkwin); + width = Tk_Height(scrollPtr->tkwin); + } + + if (x<inset || x>=width-inset || y<inset || y>=length-inset) { + return OUTSIDE; + } + + /* + * All of the calculations in this procedure mirror those in + * TkpDisplayScrollbar. Be sure to keep the two consistent. + */ + + if (y < inset + scrollPtr->arrowLength) { return TOP_ARROW; - case NSScrollerDecrementPage: + } + if (y < scrollPtr->sliderFirst) { return TOP_GAP; - case NSScrollerKnob: + } + if (y < scrollPtr->sliderLast) { return SLIDER; - case NSScrollerIncrementPage: - return BOTTOM_GAP; - case NSScrollerIncrementLine: + } + if (y >= length - (scrollPtr->arrowLength + inset)) { return BOTTOM_ARROW; - case NSScrollerKnobSlot: - case NSScrollerNoPart: - default: - return OUTSIDE; } + return BOTTOM_GAP; } - + +/* + *-------------------------------------------------------------- + * + * UpdateControlValues -- + * + * This procedure updates the Macintosh scrollbar control to display the + * values defined by the Tk scrollbar. This is the key interface to the Mac-native * scrollbar; the Unix bindings drive scrolling in the Tk window and all the Mac + * scrollbar has to do is redraw itself. + * + * Results: + * None. + * + * Side effects: + * The Macintosh control is updated. + * + *-------------------------------------------------------------- + */ + +static void +UpdateControlValues( + TkScrollbar *scrollPtr) /* Scrollbar data struct. */ +{ + + Tk_Window tkwin = scrollPtr->tkwin; + MacDrawable *macWin = (MacDrawable *) Tk_WindowId(scrollPtr->tkwin); + double dViewSize; + HIRect contrlRect; + int variant, active; + short width, height; + + NSView *view = TkMacOSXDrawableView(macWin); + CGFloat viewHeight = [view bounds].size.height; + NSRect frame; + frame = NSMakeRect(macWin->xOff, macWin->yOff, Tk_Width(tkwin), + Tk_Height(tkwin)); + frame = NSInsetRect(frame, scrollPtr->inset, scrollPtr->inset); + frame.origin.y = viewHeight - (frame.origin.y + frame.size.height); + + contrlRect = NSRectToCGRect(frame); + info.bounds = contrlRect; + + width = contrlRect.size.width; + height = contrlRect.size.height; + + variant = contrlRect.size.width < metrics[0].width ? 1 : 0; + + /* + * Ensure we set scrollbar control bounds only once all size adjustments + * have been computed. + */ + + info.bounds = contrlRect; + if (!scrollPtr->vertical) { + info.attributes |= kThemeTrackHorizontal; + } + + /* + * Given the Tk parameters for the fractions of the start and end of the + * thumb, the following calculation determines the location for the + * Macintosh thumb. The Aqua scroll control works as follows. The + * scrollbar's value is the position of the left (or top) side of the view + * area in the content area being scrolled. The maximum value of the + * control is therefore the dimension of the content area less the size of + * the view area. + */ + + double maximum = 100, factor; + factor = RangeToFactor(maximum); + dViewSize = (scrollPtr->lastFraction - scrollPtr->firstFraction) + * factor; + info.max = MIN_SCROLLBAR_VALUE + + factor - dViewSize; + info.trackInfo.scrollbar.viewsize = dViewSize; + if (scrollPtr->vertical) { + info.value = info.max - factor * scrollPtr->firstFraction; + } else { + info.value = MIN_SCROLLBAR_VALUE + factor * scrollPtr->firstFraction; + } + + if((scrollPtr->firstFraction <= 0.0 && scrollPtr->lastFraction >= 1.0) + || height <= metrics[variant].minHeight) { + info.enableState = kThemeTrackHideTrack; + } else { + info.enableState = kThemeTrackActive; + info.attributes = kThemeTrackShowThumb | kThemeTrackThumbRgnIsNotGhost; + } + +} + +/* + *-------------------------------------------------------------- + * + * ScrollbarPress -- + * + * This procedure is invoked in response to <ButtonPress> events. + * Enters a modal loop to handle scrollbar interactions. + * + *-------------------------------------------------------------- + */ + +static int +ScrollbarPress(TkScrollbar *scrollPtr, XEvent *eventPtr) +{ + + if (eventPtr->type == ButtonPress) { + UpdateControlValues(scrollPtr); + return TCL_OK; + } +} + + + /* *-------------------------------------------------------------- * @@ -660,8 +537,8 @@ TkpScrollbarPosition( static void ScrollbarEventProc( - ClientData clientData, /* Information about window. */ - XEvent *eventPtr) /* Information about event. */ + ClientData clientData, /* Information about window. */ + XEvent *eventPtr) /* Information about event. */ { TkScrollbar *scrollPtr = clientData; @@ -673,55 +550,10 @@ ScrollbarEventProc( case DeactivateNotify: TkScrollbarEventuallyRedraw(scrollPtr); break; + case ButtonPress: + ScrollbarPress(clientData, eventPtr); + break; default: TkScrollbarEventProc(clientData, eventPtr); } } - - -/* - *---------------------------------------------------------------------- - * - * TkMacOSXGetScrollFrame -- - * - * Computes a frame for an NSScroller that will correspond to where - * Tk thinks the scroller is located. - * - * Results: - * Returns an NSRect describing a frame for an NSScrollbar. - * - * Side effects: - * None - * - *---------------------------------------------------------------------- - */ -NSRect TkMacOSXGetScrollFrame( - TkScrollbar *scrlPtr) -{ - MacScrollbar *macscrlPtr = (MacScrollbar *) scrlPtr; - Tk_Window tkwin = scrlPtr->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)); - - frame.origin.y = viewHeight - (frame.origin.y + frame.size.height); - return frame; - } else { - return NSZeroRect; - } -} - - - -/* - * Local Variables: - * mode: objc - * c-basic-offset: 4 - * fill-column: 79 - * coding: utf-8 - * End: - */ |