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-rw-r--r--tk8.6/unix/tkUnixScrlbr.c483
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diff --git a/tk8.6/unix/tkUnixScrlbr.c b/tk8.6/unix/tkUnixScrlbr.c
deleted file mode 100644
index 0507211..0000000
--- a/tk8.6/unix/tkUnixScrlbr.c
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@@ -1,483 +0,0 @@
-/*
- * tkUnixScrollbar.c --
- *
- * This file implements the Unix specific portion of the scrollbar
- * widget.
- *
- * Copyright (c) 1996 by Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution of
- * this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#include "tkInt.h"
-#include "tkScrollbar.h"
-
-/*
- * Minimum slider length, in pixels (designed to make sure that the slider is
- * always easy to grab with the mouse).
- */
-
-#define MIN_SLIDER_LENGTH 5
-
-/*
- * Declaration of Unix specific scrollbar structure.
- */
-
-typedef struct UnixScrollbar {
- TkScrollbar info; /* Generic scrollbar info. */
- GC troughGC; /* For drawing trough. */
- GC copyGC; /* Used for copying from pixmap onto screen. */
-} UnixScrollbar;
-
-/*
- * 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 = {
- sizeof(Tk_ClassProcs), /* size */
- NULL, /* worldChangedProc */
- NULL, /* createProc */
- NULL /* modalProc */
-};
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpCreateScrollbar --
- *
- * Allocate a new TkScrollbar structure.
- *
- * Results:
- * Returns a newly allocated TkScrollbar structure.
- *
- * Side effects:
- * Registers an event handler for the widget.
- *
- *----------------------------------------------------------------------
- */
-
-TkScrollbar *
-TkpCreateScrollbar(
- Tk_Window tkwin)
-{
- UnixScrollbar *scrollPtr = ckalloc(sizeof(UnixScrollbar));
-
- scrollPtr->troughGC = None;
- scrollPtr->copyGC = None;
-
- Tk_CreateEventHandler(tkwin,
- ExposureMask|StructureNotifyMask|FocusChangeMask,
- TkScrollbarEventProc, scrollPtr);
-
- return (TkScrollbar *) scrollPtr;
-}
-
-/*
- *--------------------------------------------------------------
- *
- * 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.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Information appears on the screen.
- *
- *--------------------------------------------------------------
- */
-
-void
-TkpDisplayScrollbar(
- ClientData clientData) /* Information about window. */
-{
- register TkScrollbar *scrollPtr = (TkScrollbar *) clientData;
- register Tk_Window tkwin = scrollPtr->tkwin;
- XPoint points[7];
- Tk_3DBorder border;
- int relief, width, elementBorderWidth;
- Pixmap pixmap;
-
- if ((scrollPtr->tkwin == NULL) || !Tk_IsMapped(tkwin)) {
- goto done;
- }
-
- if (scrollPtr->vertical) {
- width = Tk_Width(tkwin) - 2*scrollPtr->inset;
- } else {
- width = Tk_Height(tkwin) - 2*scrollPtr->inset;
- }
- elementBorderWidth = scrollPtr->elementBorderWidth;
- if (elementBorderWidth < 0) {
- elementBorderWidth = scrollPtr->borderWidth;
- }
-
- /*
- * In order to avoid screen flashes, this procedure redraws the scrollbar
- * in a pixmap, then copies the pixmap to the screen in a single
- * operation. This means that there's no point in time where the on-sreen
- * image has been cleared.
- */
-
- pixmap = Tk_GetPixmap(scrollPtr->display, Tk_WindowId(tkwin),
- Tk_Width(tkwin), Tk_Height(tkwin), Tk_Depth(tkwin));
-
- if (scrollPtr->highlightWidth != 0) {
- GC gc;
-
- if (scrollPtr->flags & GOT_FOCUS) {
- gc = Tk_GCForColor(scrollPtr->highlightColorPtr, pixmap);
- } else {
- gc = Tk_GCForColor(scrollPtr->highlightBgColorPtr, pixmap);
- }
- Tk_DrawFocusHighlight(tkwin, gc, scrollPtr->highlightWidth, pixmap);
- }
- Tk_Draw3DRectangle(tkwin, pixmap, scrollPtr->bgBorder,
- scrollPtr->highlightWidth, scrollPtr->highlightWidth,
- Tk_Width(tkwin) - 2*scrollPtr->highlightWidth,
- Tk_Height(tkwin) - 2*scrollPtr->highlightWidth,
- scrollPtr->borderWidth, scrollPtr->relief);
- XFillRectangle(scrollPtr->display, pixmap,
- ((UnixScrollbar*)scrollPtr)->troughGC,
- scrollPtr->inset, scrollPtr->inset,
- (unsigned) (Tk_Width(tkwin) - 2*scrollPtr->inset),
- (unsigned) (Tk_Height(tkwin) - 2*scrollPtr->inset));
-
- /*
- * Draw the top or left arrow. The coordinates of the polygon points
- * probably seem odd, but they were carefully chosen with respect to X's
- * rules for filling polygons. These point choices cause the arrows to
- * just fill the narrow dimension of the scrollbar and be properly
- * centered.
- */
-
- if (scrollPtr->activeField == TOP_ARROW) {
- border = scrollPtr->activeBorder;
- relief = scrollPtr->activeField == TOP_ARROW ? scrollPtr->activeRelief
- : TK_RELIEF_RAISED;
- } else {
- border = scrollPtr->bgBorder;
- relief = TK_RELIEF_RAISED;
- }
- if (scrollPtr->vertical) {
- points[0].x = scrollPtr->inset - 1;
- points[0].y = scrollPtr->arrowLength + scrollPtr->inset - 1;
- points[1].x = width + scrollPtr->inset;
- points[1].y = points[0].y;
- points[2].x = width/2 + scrollPtr->inset;
- points[2].y = scrollPtr->inset - 1;
- Tk_Fill3DPolygon(tkwin, pixmap, border, points, 3,
- elementBorderWidth, relief);
- } else {
- points[0].x = scrollPtr->arrowLength + scrollPtr->inset - 1;
- points[0].y = scrollPtr->inset - 1;
- points[1].x = scrollPtr->inset;
- points[1].y = width/2 + scrollPtr->inset;
- points[2].x = points[0].x;
- points[2].y = width + scrollPtr->inset;
- Tk_Fill3DPolygon(tkwin, pixmap, border, points, 3,
- elementBorderWidth, relief);
- }
-
- /*
- * Display the bottom or right arrow.
- */
-
- if (scrollPtr->activeField == BOTTOM_ARROW) {
- border = scrollPtr->activeBorder;
- relief = scrollPtr->activeField == BOTTOM_ARROW
- ? scrollPtr->activeRelief : TK_RELIEF_RAISED;
- } else {
- border = scrollPtr->bgBorder;
- relief = TK_RELIEF_RAISED;
- }
- if (scrollPtr->vertical) {
- points[0].x = scrollPtr->inset;
- points[0].y = Tk_Height(tkwin) - scrollPtr->arrowLength
- - scrollPtr->inset + 1;
- points[1].x = width/2 + scrollPtr->inset;
- points[1].y = Tk_Height(tkwin) - scrollPtr->inset;
- points[2].x = width + scrollPtr->inset;
- points[2].y = points[0].y;
- Tk_Fill3DPolygon(tkwin, pixmap, border,
- points, 3, elementBorderWidth, relief);
- } else {
- points[0].x = Tk_Width(tkwin) - scrollPtr->arrowLength
- - scrollPtr->inset + 1;
- points[0].y = scrollPtr->inset - 1;
- points[1].x = points[0].x;
- points[1].y = width + scrollPtr->inset;
- points[2].x = Tk_Width(tkwin) - scrollPtr->inset;
- points[2].y = width/2 + scrollPtr->inset;
- Tk_Fill3DPolygon(tkwin, pixmap, border,
- points, 3, elementBorderWidth, relief);
- }
-
- /*
- * Display the slider.
- */
-
- if (scrollPtr->activeField == SLIDER) {
- border = scrollPtr->activeBorder;
- relief = scrollPtr->activeField == SLIDER ? scrollPtr->activeRelief
- : TK_RELIEF_RAISED;
- } else {
- border = scrollPtr->bgBorder;
- relief = TK_RELIEF_RAISED;
- }
- if (scrollPtr->vertical) {
- Tk_Fill3DRectangle(tkwin, pixmap, border,
- scrollPtr->inset, scrollPtr->sliderFirst,
- width, scrollPtr->sliderLast - scrollPtr->sliderFirst,
- elementBorderWidth, relief);
- } else {
- Tk_Fill3DRectangle(tkwin, pixmap, border,
- scrollPtr->sliderFirst, scrollPtr->inset,
- scrollPtr->sliderLast - scrollPtr->sliderFirst, width,
- elementBorderWidth, relief);
- }
-
- /*
- * Copy the information from the off-screen pixmap onto the screen, then
- * delete the pixmap.
- */
-
- XCopyArea(scrollPtr->display, pixmap, Tk_WindowId(tkwin),
- ((UnixScrollbar*)scrollPtr)->copyGC, 0, 0,
- (unsigned) Tk_Width(tkwin), (unsigned) Tk_Height(tkwin), 0, 0);
- Tk_FreePixmap(scrollPtr->display, pixmap);
-
- done:
- scrollPtr->flags &= ~REDRAW_PENDING;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpComputeScrollbarGeometry --
- *
- * After changes in a scrollbar's size or configuration, this procedure
- * recomputes various geometry information used in displaying the
- * scrollbar.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The scrollbar will be displayed differently.
- *
- *----------------------------------------------------------------------
- */
-
-extern void
-TkpComputeScrollbarGeometry(
- register TkScrollbar *scrollPtr)
- /* Scrollbar whose geometry may have
- * changed. */
-{
- int width, fieldLength;
-
- if (scrollPtr->highlightWidth < 0) {
- scrollPtr->highlightWidth = 0;
- }
- scrollPtr->inset = scrollPtr->highlightWidth + scrollPtr->borderWidth;
- width = (scrollPtr->vertical) ? Tk_Width(scrollPtr->tkwin)
- : Tk_Height(scrollPtr->tkwin);
- scrollPtr->arrowLength = width - 2*scrollPtr->inset + 1;
- fieldLength = (scrollPtr->vertical ? Tk_Height(scrollPtr->tkwin)
- : Tk_Width(scrollPtr->tkwin))
- - 2*(scrollPtr->arrowLength + scrollPtr->inset);
- if (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).
- */
-
- if (scrollPtr->sliderFirst > fieldLength - MIN_SLIDER_LENGTH) {
- scrollPtr->sliderFirst = fieldLength - MIN_SLIDER_LENGTH;
- }
- if (scrollPtr->sliderFirst < 0) {
- scrollPtr->sliderFirst = 0;
- }
- if (scrollPtr->sliderLast < scrollPtr->sliderFirst + MIN_SLIDER_LENGTH) {
- scrollPtr->sliderLast = scrollPtr->sliderFirst + MIN_SLIDER_LENGTH;
- }
- if (scrollPtr->sliderLast > fieldLength) {
- scrollPtr->sliderLast = fieldLength;
- }
- scrollPtr->sliderFirst += scrollPtr->arrowLength + scrollPtr->inset;
- scrollPtr->sliderLast += scrollPtr->arrowLength + scrollPtr->inset;
-
- /*
- * 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));
- } else {
- Tk_GeometryRequest(scrollPtr->tkwin,
- 2*(scrollPtr->arrowLength + scrollPtr->borderWidth
- + scrollPtr->inset), scrollPtr->width + 2*scrollPtr->inset);
- }
- Tk_SetInternalBorder(scrollPtr->tkwin, scrollPtr->inset);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpDestroyScrollbar --
- *
- * Free data structures associated with the scrollbar control.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Frees the GCs associated with the scrollbar.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TkpDestroyScrollbar(
- TkScrollbar *scrollPtr)
-{
- UnixScrollbar *unixScrollPtr = (UnixScrollbar *)scrollPtr;
-
- if (unixScrollPtr->troughGC != None) {
- Tk_FreeGC(scrollPtr->display, unixScrollPtr->troughGC);
- }
- if (unixScrollPtr->copyGC != None) {
- Tk_FreeGC(scrollPtr->display, unixScrollPtr->copyGC);
- }
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TkpConfigureScrollbar --
- *
- * This procedure is called after the generic code has finished
- * processing configuration options, in order to configure platform
- * specific options.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Configuration info may get changed.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TkpConfigureScrollbar(
- register TkScrollbar *scrollPtr)
- /* Information about widget; may or may not
- * already have values for some fields. */
-{
- XGCValues gcValues;
- GC new;
- UnixScrollbar *unixScrollPtr = (UnixScrollbar *) scrollPtr;
-
- Tk_SetBackgroundFromBorder(scrollPtr->tkwin, scrollPtr->bgBorder);
-
- gcValues.foreground = scrollPtr->troughColorPtr->pixel;
- new = Tk_GetGC(scrollPtr->tkwin, GCForeground, &gcValues);
- if (unixScrollPtr->troughGC != None) {
- Tk_FreeGC(scrollPtr->display, unixScrollPtr->troughGC);
- }
- unixScrollPtr->troughGC = new;
- if (unixScrollPtr->copyGC == None) {
- gcValues.graphics_exposures = False;
- unixScrollPtr->copyGC = Tk_GetGC(scrollPtr->tkwin,
- GCGraphicsExposures, &gcValues);
- }
-}
-
-/*
- *--------------------------------------------------------------
- *
- * TkpScrollbarPosition --
- *
- * Determine the scrollbar element corresponding to a given position.
- *
- * Results:
- * One of TOP_ARROW, TOP_GAP, etc., indicating which element of the
- * scrollbar covers the position given by (x, y). If (x,y) is outside the
- * scrollbar entirely, then OUTSIDE is returned.
- *
- * Side effects:
- * None.
- *
- *--------------------------------------------------------------
- */
-
-int
-TkpScrollbarPosition(
- register TkScrollbar *scrollPtr,
- /* Scrollbar widget record. */
- int x, int y) /* Coordinates within scrollPtr's window. */
-{
- 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;
- }
- if (y < scrollPtr->sliderFirst) {
- return TOP_GAP;
- }
- if (y < scrollPtr->sliderLast) {
- return SLIDER;
- }
- if (y >= length - (scrollPtr->arrowLength + inset)) {
- return BOTTOM_ARROW;
- }
- return BOTTOM_GAP;
-}
-
-/*
- * Local Variables:
- * mode: c
- * c-basic-offset: 4
- * fill-column: 78
- * End:
- */