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Diffstat (limited to 'tk8.6/unix/tkUnixDraw.c')
| -rw-r--r-- | tk8.6/unix/tkUnixDraw.c | 243 |
1 files changed, 0 insertions, 243 deletions
diff --git a/tk8.6/unix/tkUnixDraw.c b/tk8.6/unix/tkUnixDraw.c deleted file mode 100644 index acc0565..0000000 --- a/tk8.6/unix/tkUnixDraw.c +++ /dev/null @@ -1,243 +0,0 @@ -/* - * tkUnixDraw.c -- - * - * This file contains X specific drawing routines. - * - * Copyright (c) 1995 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" - -#ifndef _WIN32 -#include "tkUnixInt.h" -#endif - -/* - * The following structure is used to pass information to ScrollRestrictProc - * from TkScrollWindow. - */ - -typedef struct ScrollInfo { - int done; /* Flag is 0 until filtering is done. */ - Display *display; /* Display to filter. */ - Window window; /* Window to filter. */ - TkRegion region; /* Region into which damage is accumulated. */ - int dx, dy; /* Amount by which window was shifted. */ -} ScrollInfo; - -/* - * Forward declarations for functions declared later in this file: - */ - -static Tk_RestrictProc ScrollRestrictProc; - -/* - *---------------------------------------------------------------------- - * - * TkScrollWindow -- - * - * Scroll a rectangle of the specified window and accumulate damage - * information in the specified Region. - * - * Results: - * Returns 0 if no damage additional damage was generated. Sets damageRgn - * to contain the damaged areas and returns 1 if GraphicsExpose events - * were detected. - * - * Side effects: - * Scrolls the bits in the window and enters the event loop looking for - * damage events. - * - *---------------------------------------------------------------------- - */ - -int -TkScrollWindow( - Tk_Window tkwin, /* The window to be scrolled. */ - GC gc, /* GC for window to be scrolled. */ - int x, int y, int width, int height, - /* Position rectangle to be scrolled. */ - int dx, int dy, /* Distance rectangle should be moved. */ - TkRegion damageRgn) /* Region to accumulate damage in. */ -{ - Tk_RestrictProc *prevProc; - ClientData prevArg; - ScrollInfo info; - - XCopyArea(Tk_Display(tkwin), Tk_WindowId(tkwin), Tk_WindowId(tkwin), gc, - x, y, (unsigned) width, (unsigned) height, x+dx, y+dy); - - info.done = 0; - info.window = Tk_WindowId(tkwin); - info.display = Tk_Display(tkwin); - info.region = damageRgn; - info.dx = dx; - info.dy = dy; - - /* - * Sync the event stream so all of the expose events will be on the Tk - * event queue before we start filtering. This avoids busy waiting while - * we filter events. - */ - - TkpSync(info.display); - prevProc = Tk_RestrictEvents(ScrollRestrictProc, &info, &prevArg); - while (!info.done) { - Tcl_ServiceEvent(TCL_WINDOW_EVENTS); - } - Tk_RestrictEvents(prevProc, prevArg, &prevArg); - - if (XEmptyRegion((Region) damageRgn)) { - return 0; - } else { - return 1; - } -} - -/* - *---------------------------------------------------------------------- - * - * ScrollRestrictProc -- - * - * A Tk_RestrictProc used by TkScrollWindow to gather up Expose - * information into a single damage region. It accumulates damage events - * on the specified window until a NoExpose or the last GraphicsExpose - * event is detected. - * - * Results: - * None. - * - * Side effects: - * Discards Expose events after accumulating damage information - * for a particular window. - * - *---------------------------------------------------------------------- - */ - -static Tk_RestrictAction -ScrollRestrictProc( - ClientData arg, - XEvent *eventPtr) -{ - ScrollInfo *info = (ScrollInfo *) arg; - XRectangle rect; - - /* - * Defer events which aren't for the specified window. - */ - - if (info->done || (eventPtr->xany.display != info->display) - || (eventPtr->xany.window != info->window)) { - return TK_DEFER_EVENT; - } - - if (eventPtr->type == NoExpose) { - info->done = 1; - } else if (eventPtr->type == GraphicsExpose) { - rect.x = eventPtr->xgraphicsexpose.x; - rect.y = eventPtr->xgraphicsexpose.y; - rect.width = eventPtr->xgraphicsexpose.width; - rect.height = eventPtr->xgraphicsexpose.height; - XUnionRectWithRegion(&rect, (Region) info->region, - (Region) info->region); - - if (eventPtr->xgraphicsexpose.count == 0) { - info->done = 1; - } - } else if (eventPtr->type == Expose) { - /* - * This case is tricky. This event was already queued before the - * XCopyArea was issued. If this area overlaps the area being copied, - * then some of the copied area may be invalid. The easiest way to - * handle this case is to mark both the original area and the shifted - * area as damaged. - */ - - rect.x = eventPtr->xexpose.x; - rect.y = eventPtr->xexpose.y; - rect.width = eventPtr->xexpose.width; - rect.height = eventPtr->xexpose.height; - XUnionRectWithRegion(&rect, (Region) info->region, - (Region) info->region); - rect.x += info->dx; - rect.y += info->dy; - XUnionRectWithRegion(&rect, (Region) info->region, - (Region) info->region); - } else { - return TK_DEFER_EVENT; - } - return TK_DISCARD_EVENT; -} - -/* - *---------------------------------------------------------------------- - * - * TkpDrawHighlightBorder -- - * - * This function draws a rectangular ring around the outside of a widget - * to indicate that it has received the input focus. - * - * On Unix, we just draw the simple inset ring. On other sytems, e.g. the - * Mac, the focus ring is a little more complicated, so we need this - * abstraction. - * - * Results: - * None. - * - * Side effects: - * A rectangle "width" pixels wide is drawn in "drawable", corresponding - * to the outer area of "tkwin". - * - *---------------------------------------------------------------------- - */ - -void -TkpDrawHighlightBorder( - Tk_Window tkwin, - GC fgGC, - GC bgGC, - int highlightWidth, - Drawable drawable) -{ - TkDrawInsetFocusHighlight(tkwin, fgGC, highlightWidth, drawable, 0); -} - -/* - *---------------------------------------------------------------------- - * - * TkpDrawFrame -- - * - * This function draws the rectangular frame area. - * - * Results: - * None. - * - * Side effects: - * Draws inside the tkwin area. - * - *---------------------------------------------------------------------- - */ - -void -TkpDrawFrame( - Tk_Window tkwin, - Tk_3DBorder border, - int highlightWidth, - int borderWidth, - int relief) -{ - Tk_Fill3DRectangle(tkwin, Tk_WindowId(tkwin), border, highlightWidth, - highlightWidth, Tk_Width(tkwin) - 2*highlightWidth, - Tk_Height(tkwin) - 2*highlightWidth, borderWidth, relief); -} - -/* - * Local Variables: - * mode: c - * c-basic-offset: 4 - * fill-column: 78 - * End: - */ |