Merge branch 'sunweaver-pr/libnx-x11-autoreconf' into 3.6.x

Attributes GH PR #498: https://github.com/ArcticaProject/nx-libs/pull/498

1 files changed, 183 insertions, 0 deletions

diff --git a/nx-X11/lib/src/WMGeom.c b/nx-X11/lib/src/WMGeom.c
new file mode 100644
index 000000000..7947536f5
--- /dev/null
+++ b/nx-X11/lib/src/WMGeom.c
@@ -0,0 +1,183 @@
+/*
+
+Copyright 1989, 1998  The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "Xlibint.h"
+#include "Xutil.h"
+
+static int _GeometryMaskToGravity(
+    int mask);
+
+/*
+ * This routine given a user supplied positional argument and a default
+ * argument (fully qualified) will return the position the window should take
+ * as well as the gravity to be set in the WM_NORMAL_HINTS size hints.
+ * Always sets all return values and returns a mask describing which fields
+ * were set by the user or'ed with whether or not the x and y values should
+ * be considered "negative".
+ */
+
+int
+XWMGeometry (
+    Display *dpy,			/* user's display connection */
+    int screen,				/* screen on which to do computation */
+    _Xconst char *user_geom,		/* user provided geometry spec */
+    _Xconst char *def_geom,		/* default geometry spec for window */
+    unsigned int bwidth,		/* border width */
+    XSizeHints *hints,			/* usually WM_NORMAL_HINTS */
+    int *x_return,			/* location of window */
+    int *y_return,			/* location of window */
+    int *width_return,			/* size of window */
+    int *height_return,			/* size of window */
+    int *gravity_return)		/* gravity of window */
+{
+    int ux, uy;				/* returned values from parse */
+    unsigned int uwidth, uheight;	/* returned values from parse */
+    int umask;				/* parse mask of returned values */
+    int dx, dy;				/* default values from parse */
+    unsigned int dwidth, dheight;	/* default values from parse */
+    int dmask;				/* parse mask of returned values */
+    int base_width, base_height;	/* valid amounts */
+    int min_width, min_height;		/* valid amounts */
+    int width_inc, height_inc;		/* valid amounts */
+    int rx, ry, rwidth, rheight;	/* return values */
+    int rmask;				/* return mask */
+
+    /*
+     * Get the base sizes and increments.  Section 4.1.2.3 of the ICCCM
+     * states that the base and minimum sizes are defaults for each other.
+     * If neither is given, then the base sizes should be 0.  These parameters
+     * control the sets of sizes that window managers should allow for the
+     * window according to the following formulae:
+     *
+     *          width = base_width  + (i * width_inc)
+     *         height = base_height + (j * height_inc)
+     */
+    base_width =  ((hints->flags & PBaseSize) ? hints->base_width :
+		   ((hints->flags & PMinSize) ? hints->min_width : 0));
+    base_height = ((hints->flags & PBaseSize) ? hints->base_height :
+		   ((hints->flags & PMinSize) ? hints->min_height : 0));
+    min_width = ((hints->flags & PMinSize) ? hints->min_width : base_width);
+    min_height = ((hints->flags & PMinSize) ? hints->min_height : base_height);
+    width_inc = (hints->flags & PResizeInc) ? hints->width_inc : 1;
+    height_inc = (hints->flags & PResizeInc) ? hints->height_inc : 1;
+
+
+    /*
+     * parse the two geometry masks
+     */
+    rmask = umask = XParseGeometry (user_geom, &ux, &uy, &uwidth, &uheight);
+    dmask = XParseGeometry (def_geom, &dx, &dy, &dwidth, &dheight);
+
+
+    /*
+     * get the width and height:
+     *     1.  if user-specified, then take that value
+     *     2.  else, if program-specified, then take that value
+     *     3.  else, take 1
+     *     4.  multiply by the size increment
+     *     5.  and add to the base size
+     */
+    rwidth = ((((umask & WidthValue) ? uwidth :
+		((dmask & WidthValue) ? dwidth : 1)) * width_inc) +
+	      base_width);
+    rheight = ((((umask & HeightValue) ? uheight :
+		 ((dmask & HeightValue) ? dheight : 1)) * height_inc) +
+	       base_height);
+
+    /*
+     * Make sure computed size is within limits.  Note that we always do the
+     * lower bounds check since the base size (which defaults to 0) should
+     * be used if a minimum size isn't specified.
+     */
+    if (rwidth < min_width) rwidth = min_width;
+    if (rheight < min_height) rheight = min_height;
+
+    if (hints->flags & PMaxSize) {
+	if (rwidth > hints->max_width) rwidth = hints->max_width;
+	if (rheight > hints->max_height) rheight = hints->max_height;
+    }
+
+
+    /*
+     * Compute the location.  Set the negative flags in the return mask
+     * (and watch out for borders), if necessary.
+     */
+    if (umask & XValue) {
+	rx = ((umask & XNegative) ?
+	      (DisplayWidth (dpy, screen) + ux - rwidth - 2 * bwidth) : ux);
+    } else if (dmask & XValue) {
+	if (dmask & XNegative) {
+	    rx = (DisplayWidth (dpy, screen) + dx - rwidth - 2 * bwidth);
+	    rmask |= XNegative;
+	} else
+	  rx = dx;
+    } else {
+	rx = 0;				/* gotta choose something... */
+    }
+
+    if (umask & YValue) {
+	ry = ((umask & YNegative) ?
+	      (DisplayHeight(dpy, screen) + uy - rheight - 2 * bwidth) : uy);
+    } else if (dmask & YValue) {
+	if (dmask & YNegative) {
+	    ry = (DisplayHeight(dpy, screen) + dy - rheight - 2 * bwidth);
+	    rmask |= YNegative;
+	} else
+	  ry = dy;
+    } else {
+	ry = 0;				/* gotta choose something... */
+    }
+
+
+    /*
+     * All finished, so set the return variables.
+     */
+    *x_return = rx;
+    *y_return = ry;
+    *width_return = rwidth;
+    *height_return = rheight;
+    *gravity_return = _GeometryMaskToGravity (rmask);
+    return rmask;
+}
+
+
+static int _GeometryMaskToGravity(
+    int mask)
+{
+    switch (mask & (XNegative|YNegative)) {
+      case 0:
+        return NorthWestGravity;
+      case XNegative:
+        return NorthEastGravity;
+      case YNegative:
+        return SouthWestGravity;
+      default:
+        return SouthEastGravity;
+    }
+}