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-rw-r--r--unix/tkUnixDraw.c130
1 files changed, 69 insertions, 61 deletions
diff --git a/unix/tkUnixDraw.c b/unix/tkUnixDraw.c
index adde20d..c0d4d7f 100644
--- a/unix/tkUnixDraw.c
+++ b/unix/tkUnixDraw.c
@@ -1,15 +1,14 @@
-/*
+/*
* 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.
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
-#include "tkPort.h"
#include "tkInt.h"
#if !defined(__WIN32__)
@@ -17,8 +16,8 @@
#endif
/*
- * The following structure is used to pass information to
- * ScrollRestrictProc from TkScrollWindow.
+ * The following structure is used to pass information to ScrollRestrictProc
+ * from TkScrollWindow.
*/
typedef struct ScrollInfo {
@@ -30,46 +29,46 @@ typedef struct ScrollInfo {
} ScrollInfo;
/*
- * Forward declarations for procedures declared later in this file:
+ * Forward declarations for functions declared later in this file:
*/
-static Tk_RestrictAction ScrollRestrictProc _ANSI_ARGS_((
- ClientData arg, XEvent *eventPtr));
+static Tk_RestrictAction ScrollRestrictProc(ClientData arg, XEvent *eventPtr);
/*
*----------------------------------------------------------------------
*
* TkScrollWindow --
*
- * Scroll a rectangle of the specified window and accumulate
- * damage information in the specified Region.
+ * 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.
+ * 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.
+ * Scrolls the bits in the window and enters the event loop looking for
+ * damage events.
*
*----------------------------------------------------------------------
*/
int
-TkScrollWindow(tkwin, gc, x, y, width, height, dx, dy, damageRgn)
- Tk_Window tkwin; /* The window to be scrolled. */
- GC gc; /* GC for window to be scrolled. */
- int x, y, width, height; /* Position rectangle to be scrolled. */
- int dx, dy; /* Distance rectangle should be moved. */
- TkRegion damageRgn; /* Region to accumulate damage in. */
+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 *oldProc;
ClientData oldArg, dummy;
ScrollInfo info;
-
+
XCopyArea(Tk_Display(tkwin), Tk_WindowId(tkwin), Tk_WindowId(tkwin), gc,
- x, y, (unsigned int) width, (unsigned int) height, x + dx, y + dy);
+ x, y, (unsigned) width, (unsigned) height, x+dx, y+dy);
info.done = 0;
info.window = Tk_WindowId(tkwin);
@@ -79,9 +78,9 @@ TkScrollWindow(tkwin, gc, x, y, width, height, dx, dy, damageRgn)
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.
+ * 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);
@@ -105,9 +104,9 @@ TkScrollWindow(tkwin, gc, x, y, width, height, dx, dy, damageRgn)
* 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.
+ * 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.
@@ -120,9 +119,9 @@ TkScrollWindow(tkwin, gc, x, y, width, height, dx, dy, damageRgn)
*/
static Tk_RestrictAction
-ScrollRestrictProc(arg, eventPtr)
- ClientData arg;
- XEvent *eventPtr;
+ScrollRestrictProc(
+ ClientData arg,
+ XEvent *eventPtr)
{
ScrollInfo *info = (ScrollInfo *) arg;
XRectangle rect;
@@ -150,13 +149,12 @@ ScrollRestrictProc(arg, eventPtr)
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.
+ * 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;
@@ -180,30 +178,30 @@ ScrollRestrictProc(arg, eventPtr)
*
* TkpDrawHighlightBorder --
*
- * This procedure draws a rectangular ring around the outside of
- * a widget to indicate that it has received the input focus.
+ * 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.
+ * 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".
+ * A rectangle "width" pixels wide is drawn in "drawable", corresponding
+ * to the outer area of "tkwin".
*
*----------------------------------------------------------------------
*/
-void
-TkpDrawHighlightBorder(tkwin, fgGC, bgGC, highlightWidth, drawable)
- Tk_Window tkwin;
- GC fgGC;
- GC bgGC;
- int highlightWidth;
- Drawable drawable;
+void
+TkpDrawHighlightBorder(
+ Tk_Window tkwin,
+ GC fgGC,
+ GC bgGC,
+ int highlightWidth,
+ Drawable drawable)
{
TkDrawInsetFocusHighlight(tkwin, fgGC, highlightWidth, drawable, 0);
}
@@ -213,7 +211,7 @@ TkpDrawHighlightBorder(tkwin, fgGC, bgGC, highlightWidth, drawable)
*
* TkpDrawFrame --
*
- * This procedure draws the rectangular frame area.
+ * This function draws the rectangular frame area.
*
* Results:
* None.
@@ -225,12 +223,22 @@ TkpDrawHighlightBorder(tkwin, fgGC, bgGC, highlightWidth, drawable)
*/
void
-TkpDrawFrame (Tk_Window tkwin, Tk_3DBorder border,
- int highlightWidth, int borderWidth, int relief)
+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);
+ 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:
+ */