/* $Xorg: Logo.c,v 1.4 2001/02/09 02:05:54 xorgcvs Exp $ */ /* Copyright 1988, 1994, 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. */ #include #include #include "LogoP.h" #include static XtResource resources[] = { {XtNforeground, XtCForeground, XtRPixel, sizeof(Pixel), XtOffsetOf(LogoRec,logo.fgpixel), XtRString, (XtPointer) XtDefaultForeground}, {XtNshapeWindow, XtCShapeWindow, XtRBoolean, sizeof (Boolean), XtOffsetOf(LogoRec,logo.shape_window), XtRImmediate, (XtPointer) FALSE}, }; static void Initialize(), Realize(), Destroy(), Redisplay(), Resize(); static Boolean SetValues(); LogoClassRec logoClassRec = { { /* core fields */ /* superclass */ (WidgetClass) &simpleClassRec, /* class_name */ "Logo", /* widget_size */ sizeof(LogoRec), /* class_initialize */ NULL, /* class_part_initialize */ NULL, /* class_inited */ FALSE, /* initialize */ Initialize, /* initialize_hook */ NULL, /* realize */ Realize, /* actions */ NULL, /* num_actions */ 0, /* resources */ resources, /* resource_count */ XtNumber(resources), /* xrm_class */ NULLQUARK, /* compress_motion */ TRUE, /* compress_exposure */ TRUE, /* compress_enterleave */ TRUE, /* visible_interest */ FALSE, /* destroy */ Destroy, /* resize */ Resize, /* expose */ Redisplay, /* set_values */ SetValues, /* set_values_hook */ NULL, /* set_values_almost */ XtInheritSetValuesAlmost, /* get_values_hook */ NULL, /* accept_focus */ NULL, /* version */ XtVersion, /* callback_private */ NULL, /* tm_table */ NULL, /* query_geometry */ XtInheritQueryGeometry, /* display_accelerator */ XtInheritDisplayAccelerator, /* extension */ NULL }, { /* simple fields */ /* change_sensitive */ XtInheritChangeSensitive }, { /* logo fields */ /* ignore */ 0 } }; WidgetClass logoWidgetClass = (WidgetClass) &logoClassRec; /***************************************************************************** * * * private utility routines * * * *****************************************************************************/ static void create_gcs (w) LogoWidget w; { XGCValues v; v.foreground = w->logo.fgpixel; w->logo.foreGC = XtGetGC ((Widget) w, GCForeground, &v); v.foreground = w->core.background_pixel; w->logo.backGC = XtGetGC ((Widget) w, GCForeground, &v); } static void check_shape (w) LogoWidget w; { if (w->logo.shape_window) { int event_base, error_base; if (!XShapeQueryExtension (XtDisplay (w), &event_base, &error_base)) w->logo.shape_window = FALSE; } } /* ARGSUSED */ static void unset_shape (w) LogoWidget w; { XSetWindowAttributes attr; unsigned long mask; Display *dpy = XtDisplay ((Widget) w); Window win = XtWindow ((Widget) w); if (w->core.background_pixmap != None && w->core.background_pixmap != XtUnspecifiedPixmap) { attr.background_pixmap = w->core.background_pixmap; mask = CWBackPixmap; } else { attr.background_pixel = w->core.background_pixel; mask = CWBackPixel; } XChangeWindowAttributes (dpy, win, mask, &attr); XShapeCombineMask (dpy, win, ShapeBounding, 0, 0, None, ShapeSet); if (!w->logo.foreGC) create_gcs (w); w->logo.need_shaping = w->logo.shape_window; } static void set_shape (w) LogoWidget w; { GC ones, zeros; Display *dpy = XtDisplay ((Widget) w); Window win = XtWindow ((Widget) w); unsigned int width = (unsigned int) w->core.width; unsigned int height = (unsigned int) w->core.height; Pixmap pm = XCreatePixmap (dpy, win, width, height, (unsigned int) 1); XGCValues v; v.foreground = (Pixel) 1; v.background = (Pixel) 0; ones = XCreateGC (dpy, pm, (GCForeground | GCBackground), &v); v.foreground = (Pixel) 0; v.background = (Pixel) 1; zeros = XCreateGC (dpy, pm, (GCForeground | GCBackground), &v); if (pm && ones && zeros) { int x = 0, y = 0; Widget parent; XmuDrawLogo (dpy, pm, ones, zeros, 0, 0, width, height); for (parent = (Widget) w; XtParent(parent); parent = XtParent(parent)) { x += parent->core.x + parent->core.border_width; y += parent->core.y + parent->core.border_width; } XShapeCombineMask (dpy, XtWindow (parent), ShapeBounding, x, y, pm, ShapeSet); w->logo.need_shaping = FALSE; } else { unset_shape (w); } if (ones) XFreeGC (dpy, ones); if (zeros) XFreeGC (dpy, zeros); if (pm) XFreePixmap (dpy, pm); } /***************************************************************************** * * * class methods * * * *****************************************************************************/ /* ARGSUSED */ static void Initialize (request, new, args, num_args) Widget request, new; ArgList args; Cardinal *num_args; { LogoWidget w = (LogoWidget)new; if (w->core.width < 1) w->core.width = 100; if (w->core.height < 1) w->core.height = 100; w->logo.foreGC = (GC) NULL; w->logo.backGC = (GC) NULL; check_shape (w); w->logo.need_shaping = w->logo.shape_window; } static void Destroy (gw) Widget gw; { LogoWidget w = (LogoWidget) gw; if (w->logo.foreGC) { XtReleaseGC (gw, w->logo.foreGC); w->logo.foreGC = (GC) NULL; } if (w->logo.backGC) { XtReleaseGC (gw, w->logo.backGC); w->logo.backGC = (GC) NULL; } } static void Realize (gw, valuemaskp, attr) Widget gw; XtValueMask *valuemaskp; XSetWindowAttributes *attr; { LogoWidget w = (LogoWidget) gw; if (w->logo.shape_window) { attr->background_pixel = w->logo.fgpixel; /* going to shape */ *valuemaskp |= CWBackPixel; } else create_gcs (w); (*logoWidgetClass->core_class.superclass->core_class.realize) (gw, valuemaskp, attr); } static void Resize (gw) Widget gw; { LogoWidget w = (LogoWidget) gw; if (w->logo.shape_window && XtIsRealized(gw)) set_shape (w); } /* ARGSUSED */ static void Redisplay (gw, event, region) Widget gw; XEvent *event; /* unused */ Region region; /* unused */ { LogoWidget w = (LogoWidget) gw; if (w->logo.shape_window) { if (w->logo.need_shaping) set_shape (w); /* may change shape flag */ } if (!w->logo.shape_window) XmuDrawLogo(XtDisplay(w), XtWindow(w), w->logo.foreGC, w->logo.backGC, 0, 0, (unsigned int) w->core.width, (unsigned int) w->core.height); } /* ARGSUSED */ static Boolean SetValues (gcurrent, grequest, gnew, args, num_args) Widget gcurrent, grequest, gnew; ArgList args; Cardinal *num_args; { LogoWidget current = (LogoWidget) gcurrent; LogoWidget new = (LogoWidget) gnew; Boolean redisplay = FALSE; if (new->logo.shape_window && new->logo.shape_window != current->logo.shape_window) check_shape (new); /* validate shape_window */ if ((new->logo.fgpixel != current->logo.fgpixel) || (new->core.background_pixel != current->core.background_pixel)) { Destroy (gnew); if (!new->logo.shape_window) create_gcs (new); redisplay = TRUE; } if (new->logo.shape_window != current->logo.shape_window) { if (new->logo.shape_window) { Destroy (gnew); if (XtIsRealized(gnew)) set_shape (new); else new->logo.need_shaping = True; redisplay = FALSE; } else { if (XtIsRealized(gnew)) unset_shape (new); /* creates new GCs */ redisplay = TRUE; } } return (redisplay); }