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-rw-r--r--macosx/tkMacOSXScrlbr.c81
1 files changed, 47 insertions, 34 deletions
diff --git a/macosx/tkMacOSXScrlbr.c b/macosx/tkMacOSXScrlbr.c
index deee1b0..411a41f 100644
--- a/macosx/tkMacOSXScrlbr.c
+++ b/macosx/tkMacOSXScrlbr.c
@@ -11,7 +11,7 @@
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tkMacOSXScrlbr.c,v 1.6 2003/11/16 01:01:32 vincentdarley Exp $
+ * RCS: @(#) $Id: tkMacOSXScrlbr.c,v 1.7 2003/11/16 14:11:28 vincentdarley Exp $
*/
#include "tkScrollbar.h"
@@ -42,8 +42,8 @@ enum {
#define MIN_SLIDER_LENGTH 5
#define MIN_SCROLLBAR_VALUE 0
-#define MAX_SCROLLBAR_VALUE 1000
-#define MAX_SCROLLBAR_DVALUE 1000.0
+#define MAX_SCROLLBAR_VALUE 100000
+#define MAX_SCROLLBAR_DVALUE 100000.0
/*
* Declaration of Windows specific scrollbar structure.
@@ -95,8 +95,12 @@ typedef struct MacScrollbar {
*/
static ControlActionUPP scrollActionProc = NULL; /* Pointer to func. */
static ThumbActionUPP thumbActionProc = NULL; /* Pointer to func. */
-static TkScrollbar *activeScrollPtr = NULL; /* Non-null when in thumb */
+static TkScrollbar *activeScrollPtr = NULL; /* Non-null when in thumb */
/* proc. */
+static Point activePoint; /* Used when
+ * activeScrollPtr is
+ * non-NULL */
+
/*
* Forward declarations for procedures defined later in this file:
*/
@@ -237,9 +241,9 @@ TkpDisplayScrollbar(
if (macScrollPtr->sbHandle == NULL) {
Rect r;
- SInt16 initialValue;
- SInt16 minValue;
- SInt16 maxValue;
+ SInt32 initialValue;
+ SInt32 minValue;
+ SInt32 maxValue;
SInt16 procID;
WindowRef frontNonFloating;
@@ -603,21 +607,21 @@ ThumbActionProc()
* Note: the arrowLength is equal to the thumb width of a Mac scrollbar.
*/
- origValue = GetControlValue(macScrollPtr->sbHandle);
+ origValue = GetControl32BitValue(macScrollPtr->sbHandle);
GetControlBounds(macScrollPtr->sbHandle, &trackRect);
if (scrollPtr->vertical == true) {
trackBarSize = (double) (trackRect.bottom - trackRect.top
- (scrollPtr->arrowLength * 3));
trackBarPin = trackRect.top + scrollPtr->arrowLength
+ (scrollPtr->arrowLength / 2);
- InsetRect(&trackRect, -25, -113);
+ InsetRect(&trackRect, -50, -226);
} else {
trackBarSize = (double) (trackRect.right - trackRect.left
- (scrollPtr->arrowLength * 3));
trackBarPin = trackRect.left + scrollPtr->arrowLength
+ (scrollPtr->arrowLength / 2);
- InsetRect(&trackRect, -113, -25);
+ InsetRect(&trackRect, -226, -50);
}
/*
@@ -644,18 +648,24 @@ ThumbActionProc()
* be resent to the scrollbar to update its value.
*/
thumbWidth = scrollPtr->lastFraction - scrollPtr->firstFraction;
+ newFirstFraction = ((double) origValue / MAX_SCROLLBAR_DVALUE)
+ * (1.0 - thumbWidth);
if (PtInRect(currentPoint, &trackRect)) {
+ double pixDiff;
+ double fracDelta;
if (scrollPtr->vertical == true) {
- newFirstFraction = (1.0 - thumbWidth) *
- ((double) (currentPoint.v - trackBarPin) / trackBarSize);
+ pixDiff = (double)(currentPoint.v - activePoint.v);
} else {
- newFirstFraction = (1.0 - thumbWidth) *
- ((double) (currentPoint.h - trackBarPin) / trackBarSize);
+ pixDiff = (double)(currentPoint.h - activePoint.h);
}
- } else {
- newFirstFraction = ((double) origValue / MAX_SCROLLBAR_DVALUE)
- * (1.0 - thumbWidth);
- }
+ fracDelta = pixDiff/trackBarSize;
+ newFirstFraction += fracDelta;
+ if (newFirstFraction > 1.0) {
+ newFirstFraction = 1.0;
+ } else if (newFirstFraction < 0.0) {
+ newFirstFraction = 0.0;
+ }
+ }
sprintf(valueString, "%g", newFirstFraction);
Tcl_DStringSetLength(&cmdString, 0);
Tcl_DStringAppend(&cmdString, scrollPtr->command,
@@ -763,10 +773,10 @@ ScrollbarBindProc(
macScrollPtr->macFlags |= IN_MODAL_LOOP;
if (eventPtr->type == ButtonPress) {
- Point where;
- Rect bounds;
- int part, x, y, dummy;
- unsigned int state;
+ Point where;
+ Rect bounds;
+ int part, x, y, dummy;
+ unsigned int state;
CGrafPtr saveWorld;
GDHandle saveDevice;
GWorldPtr destPort;
@@ -783,8 +793,8 @@ ScrollbarBindProc(
TkMacOSXSetUpClippingRgn(Tk_WindowId(scrollPtr->tkwin));
TkMacOSXWinBounds((TkWindow *) scrollPtr->tkwin, &bounds);
- where.h = eventPtr->xbutton.x + bounds.left;
- where.v = eventPtr->xbutton.y + bounds.top;
+ where.h = eventPtr->xbutton.x + bounds.left;
+ where.v = eventPtr->xbutton.y + bounds.top;
part = TestControl(macScrollPtr->sbHandle, where);
if (part == kControlIndicatorPart && scrollPtr->jump == false) {
/*
@@ -794,6 +804,8 @@ ScrollbarBindProc(
* so the callback may have access to it.
*/
activeScrollPtr = scrollPtr;
+ activePoint.h = where.h;
+ activePoint.v = where.v;
part = TrackControl(macScrollPtr->sbHandle, where,
(ControlActionUPP) thumbActionProc);
activeScrollPtr = NULL;
@@ -816,8 +828,9 @@ ScrollbarBindProc(
*/
thumbWidth = scrollPtr->lastFraction
- scrollPtr->firstFraction;
- newFirstFraction = (1.0 - thumbWidth) *
- ((double) GetControlValue(macScrollPtr->sbHandle) / MAX_SCROLLBAR_DVALUE);
+ newFirstFraction = (1.0 - thumbWidth) *
+ ((double) GetControl32BitValue(macScrollPtr->sbHandle) / MAX_SCROLLBAR_DVALUE);
+
sprintf(valueString, "%g", newFirstFraction);
Tcl_DStringInit(&cmdString);
@@ -1068,22 +1081,22 @@ UpdateControlValues(
* end of the thumb, the following calculation determines the
* location for the fixed sized Macintosh thumb.
*/
- middle = scrollPtr->firstFraction / (scrollPtr->firstFraction +
- (1.0 - scrollPtr->lastFraction));
+ middle = scrollPtr->firstFraction /
+ (1.0 - (scrollPtr->lastFraction - scrollPtr->firstFraction));
viewSize = (SInt32) ((scrollPtr->lastFraction - scrollPtr->firstFraction)
- * MAX_SCROLLBAR_DVALUE
- /(1 - (scrollPtr->lastFraction - scrollPtr->firstFraction)));
+ * MAX_SCROLLBAR_DVALUE
+ / (1.0 - (scrollPtr->lastFraction - scrollPtr->firstFraction)));
SetControlViewSize(macScrollPtr->sbHandle,viewSize);
- SetControlValue(macScrollPtr->sbHandle,
- (short) (middle * MAX_SCROLLBAR_VALUE) );
+ SetControl32BitValue(macScrollPtr->sbHandle,
+ (middle * MAX_SCROLLBAR_VALUE) );
contrlHilite = GetControlHilite(macScrollPtr->sbHandle);
- SetControlMinimum(macScrollPtr->sbHandle, 0);
+ SetControl32BitMinimum(macScrollPtr->sbHandle, 0);
if ( contrlHilite == 0 || contrlHilite == 255) {
if (scrollPtr->firstFraction == 0.0 &&
scrollPtr->lastFraction == 1.0) {
- SetControlMinimum(macScrollPtr->sbHandle, MAX_SCROLLBAR_VALUE);
+ SetControl32BitMinimum(macScrollPtr->sbHandle, MAX_SCROLLBAR_VALUE);
} else {
HiliteControl(macScrollPtr->sbHandle, 0);
}
generated by cgit v0.12 at 2024-11-01 11:04:18 (GMT)