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IABSD.fr/xenocara/lib/libXaw/src/Command.c
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- lib/libXaw/src/Command.c
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/* $Xorg: Command.c,v 1.5 2001/02/09 02:03:43 xorgcvs Exp $ */ /*********************************************************** Copyright 1987, 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. Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts. All Rights Reserved Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of Digital not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ******************************************************************/ /* $XFree86: xc/lib/Xaw/Command.c,v 1.15tsi Exp $ */ /* * Command.c - Command button widget */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include <stdio.h> #include <X11/IntrinsicP.h> #include <X11/StringDefs.h> #include <X11/extensions/shape.h> #include <X11/Xmu/Converters.h> #include <X11/Xmu/Drawing.h> #include <X11/Xmu/Misc.h> #include <X11/Xaw/CommandP.h> #include <X11/Xaw/XawInit.h> #include "Private.h" #define DEFAULT_HIGHLIGHT_THICKNESS 2 #define DEFAULT_SHAPE_HIGHLIGHT 32767 #define STR_EQUAL(str1, str2) (str1 == str2 || strcmp(str1, str2) == 0) /* * Class Methods */ static void XawCommandClassInitialize(void); static void XawCommandDestroy(Widget); static void XawCommandInitialize(Widget, Widget, ArgList, Cardinal*); static void XawCommandRealize(Widget, Mask*, XSetWindowAttributes*); static void XawCommandResize(Widget); static void XawCommandRedisplay(Widget, XEvent*, Region); static Boolean XawCommandSetValues(Widget, Widget, Widget, ArgList, Cardinal*); static void XawCommandGetValuesHook(Widget, ArgList, Cardinal*); static Bool ChangeSensitive(Widget); /* * Prototypes */ static GC Get_GC(CommandWidget, Pixel, Pixel); static void PaintCommandWidget(Widget, XEvent*, Region, Bool); static Region HighlightRegion(CommandWidget); static Bool ShapeButton(CommandWidget, Bool); static void XawCommandToggle(Widget); /* * Actions */ static void Highlight(Widget, XEvent*, String*, Cardinal*); static void Notify(Widget, XEvent*, String*, Cardinal*); static void Reset(Widget, XEvent*, String*, Cardinal*); static void Set(Widget, XEvent*, String*, Cardinal*); static void Unhighlight(Widget, XEvent*, String*, Cardinal*); static void Unset(Widget, XEvent*, String*, Cardinal*); /* * Initialization */ static char defaultTranslations[] = "<Enter>:" "highlight()\n" "<Leave>:" "reset()\n" "<Btn1Down>:" "set()\n" "<Btn1Up>:" "notify() unset()\n" ; #define offset(field) XtOffsetOf(CommandRec, field) static XtResource resources[] = { { XtNcallback, XtCCallback, XtRCallback, sizeof(XtPointer), offset(command.callbacks), XtRCallback, NULL }, { XtNhighlightThickness, XtCThickness, XtRDimension, sizeof(Dimension), offset(command.highlight_thickness), XtRImmediate, (XtPointer)DEFAULT_SHAPE_HIGHLIGHT }, { XtNshapeStyle, XtCShapeStyle, XtRShapeStyle, sizeof(int), offset(command.shape_style), XtRImmediate, (XtPointer)XawShapeRectangle }, { XtNcornerRoundPercent, XtCCornerRoundPercent, XtRDimension, sizeof(Dimension), offset(command.corner_round), XtRImmediate, (XtPointer)25 }, }; #undef offset static XtActionsRec actionsList[] = { {"set", Set}, {"notify", Notify}, {"highlight", Highlight}, {"reset", Reset}, {"unset", Unset}, {"unhighlight", Unhighlight} }; #define SuperClass ((LabelWidgetClass)&labelClassRec) CommandClassRec commandClassRec = { /* core */ { (WidgetClass)SuperClass, /* superclass */ "Command", /* class_name */ sizeof(CommandRec), /* size */ XawCommandClassInitialize, /* class_initialize */ NULL, /* class_part_initialize */ False, /* class_inited */ XawCommandInitialize, /* initialize */ NULL, /* initialize_hook */ XawCommandRealize, /* realize */ actionsList, /* actions */ XtNumber(actionsList), /* num_actions */ resources, /* resources */ XtNumber(resources), /* num_resources */ NULLQUARK, /* xrm_class */ False, /* compress_motion */ True, /* compress_exposure */ True, /* compress_enterleave */ False, /* visible_interest */ XawCommandDestroy, /* destroy */ XawCommandResize, /* resize */ XawCommandRedisplay, /* expose */ XawCommandSetValues, /* set_values */ NULL, /* set_values_hook */ XtInheritSetValuesAlmost, /* set_values_almost */ XawCommandGetValuesHook, /* get_values_hook */ NULL, /* accept_focus */ XtVersion, /* version */ NULL, /* callback_private */ defaultTranslations, /* tm_table */ XtInheritQueryGeometry, /* query_geometry */ XtInheritDisplayAccelerator, /* display_accelerator */ NULL, /* extension */ }, /* simple */ { ChangeSensitive, /* change_sensitive */ }, /* label */ { 0, /* not used */ }, /* command */ { 0, /* not used */ }, }; WidgetClass commandWidgetClass = (WidgetClass)&commandClassRec; /* * Implementation */ static GC Get_GC(CommandWidget cbw, Pixel fg, Pixel bg) { XGCValues values; values.foreground = fg; values.background = bg; values.font = cbw->label.font->fid; values.cap_style = CapProjecting; if (cbw->command.highlight_thickness > 1) values.line_width = cbw->command.highlight_thickness; else values.line_width = 0; if (cbw->simple.international == True) return (XtAllocateGC((Widget)cbw, 0, GCForeground | GCBackground | GCLineWidth | GCCapStyle, &values, GCFont, 0)); else return (XtGetGC((Widget)cbw, GCForeground | GCBackground | GCFont | GCLineWidth | GCCapStyle, &values)); } /*ARGSUSED*/ static void XawCommandInitialize(Widget request, Widget cnew, ArgList args, Cardinal *num_args) { CommandWidget cbw = (CommandWidget)cnew; int shape_event_base, shape_error_base; if (!cbw->label.font) XtError("Aborting: no font found\n"); if (cbw->command.shape_style != XawShapeRectangle && !XShapeQueryExtension(XtDisplay(cnew), &shape_event_base, &shape_error_base)) cbw->command.shape_style = XawShapeRectangle; if (cbw->command.highlight_thickness == DEFAULT_SHAPE_HIGHLIGHT) { if (cbw->command.shape_style != XawShapeRectangle) cbw->command.highlight_thickness = 0; else cbw->command.highlight_thickness = DEFAULT_HIGHLIGHT_THICKNESS; } cbw->command.normal_GC = Get_GC(cbw, cbw->label.foreground, cbw->core.background_pixel); cbw->command.inverse_GC = Get_GC(cbw, cbw->core.background_pixel, cbw->label.foreground); XtReleaseGC(cnew, cbw->label.normal_GC); cbw->label.normal_GC = cbw->command.normal_GC; cbw->command.set = False; cbw->command.highlighted = HighlightNone; } static Region HighlightRegion(CommandWidget cbw) { static Region outerRegion = NULL, innerRegion, emptyRegion; XRectangle rect; if (cbw->command.highlight_thickness == 0 || cbw->command.highlight_thickness > Min(XtWidth(cbw), XtHeight(cbw)) / 2) return (NULL); if (outerRegion == NULL) { /* save time by allocating scratch regions only once. */ outerRegion = XCreateRegion(); innerRegion = XCreateRegion(); emptyRegion = XCreateRegion(); } rect.x = rect.y = 0; rect.width = XtWidth(cbw); rect.height = XtHeight(cbw); XUnionRectWithRegion(&rect, emptyRegion, outerRegion); rect.x = rect.y = cbw->command.highlight_thickness; rect.width -= cbw->command.highlight_thickness * 2; rect.height -= cbw->command.highlight_thickness * 2; XUnionRectWithRegion(&rect, emptyRegion, innerRegion); XSubtractRegion(outerRegion, innerRegion, outerRegion); return (outerRegion); } /*************************** * Action Procedures ***************************/ static void XawCommandToggle(Widget w) { CommandWidget xaw = (CommandWidget)w; Arg args[2]; Cardinal num_args; num_args = 0; XtSetArg(args[num_args], XtNbackground, xaw->label.foreground); ++num_args; XtSetArg(args[num_args], XtNforeground, xaw->core.background_pixel); ++num_args; XtSetValues(w, args, num_args); } /*ARGSUSED*/ static void Set(Widget w, XEvent *event, String *params, Cardinal *num_params) { CommandWidget cbw = (CommandWidget)w; if (cbw->command.set) return; XawCommandToggle(w); cbw->command.set= True; } /*ARGSUSED*/ static void Unset(Widget w, XEvent *event, String *params, Cardinal *num_params) { CommandWidget cbw = (CommandWidget)w; if (!cbw->command.set) return; cbw->command.set = False; XawCommandToggle(w); } /*ARGSUSED*/ static void Reset(Widget w, XEvent *event, String *params, Cardinal *num_params) { CommandWidget cbw = (CommandWidget)w; if (cbw->command.set) { cbw->command.highlighted = HighlightNone; Unset(w, event, params, num_params); } else Unhighlight(w, event, params, num_params); } /*ARGSUSED*/ static void Highlight(Widget w, XEvent *event, String *params, Cardinal *num_params) { CommandWidget cbw = (CommandWidget)w; if (*num_params == (Cardinal)0) cbw->command.highlighted = HighlightWhenUnset; else { if (*num_params != (Cardinal)1) XtWarning("Too many parameters passed to highlight action table."); switch (params[0][0]) { case 'A': case 'a': cbw->command.highlighted = HighlightAlways; break; default: cbw->command.highlighted = HighlightWhenUnset; break; } } if (XtIsRealized(w)) PaintCommandWidget(w, event, HighlightRegion(cbw), True); } /*ARGSUSED*/ static void Unhighlight(Widget w, XEvent *event, String *params, Cardinal *num_params) { CommandWidget cbw = (CommandWidget)w; cbw->command.highlighted = HighlightNone; if (XtIsRealized(w)) PaintCommandWidget(w, event, HighlightRegion(cbw), True); } /*ARGSUSED*/ static void Notify(Widget w, XEvent *event, String *params, Cardinal *num_params) { CommandWidget cbw = (CommandWidget)w; /* check to be sure state is still Set so that user can cancel the action (e.g. by moving outside the window, in the default bindings. */ if (cbw->command.set) XtCallCallbackList(w, cbw->command.callbacks, (XtPointer) NULL); } static void XawCommandRedisplay(Widget w, XEvent *event, Region region) { PaintCommandWidget(w, event, region, False); } /* * Function: * PaintCommandWidget * Parameters: * w - command widget * region - region to paint (passed to the superclass) * change - did it change either set or highlight state? */ static void PaintCommandWidget(Widget w, XEvent *event, Region region, Bool change) { CommandWidget cbw = (CommandWidget)w; Bool very_thick; GC rev_gc; very_thick = cbw->command.highlight_thickness > Min(XtWidth(cbw), XtHeight(cbw)) / 2; if (cbw->command.highlight_thickness == 0) { (*SuperClass->core_class.expose) (w, event, region); return; } /* * If we are set then use the same colors as if we are not highlighted */ if (cbw->command.highlighted != HighlightNone) { rev_gc = cbw->command.normal_GC; } else { rev_gc = cbw->command.inverse_GC; } if (!((!change && cbw->command.highlighted == HighlightNone) || (cbw->command.highlighted == HighlightWhenUnset && cbw->command.set))) { if (very_thick) XFillRectangle(XtDisplay(w),XtWindow(w), rev_gc, 0, 0, XtWidth(cbw), XtHeight(cbw)); else { /* wide lines are centered on the path, so indent it */ if (cbw->core.background_pixmap != XtUnspecifiedPixmap && rev_gc == cbw->command.inverse_GC) { XClearArea(XtDisplay(w), XtWindow(w), 0, 0, XtWidth(cbw), cbw->command.highlight_thickness, False); XClearArea(XtDisplay(w), XtWindow(w), 0, cbw->command.highlight_thickness, cbw->command.highlight_thickness, XtHeight(cbw) - (cbw->command.highlight_thickness<<1), False); XClearArea(XtDisplay(w), XtWindow(w), XtWidth(cbw) - cbw->command.highlight_thickness, cbw->command.highlight_thickness, cbw->command.highlight_thickness, XtHeight(cbw) - (cbw->command.highlight_thickness<<1), False); XClearArea(XtDisplay(w), XtWindow(w), 0, XtHeight(cbw) - cbw->command.highlight_thickness, XtWidth(cbw), cbw->command.highlight_thickness, False); } else { int offset = cbw->command.highlight_thickness / 2; XDrawRectangle(XtDisplay(w),XtWindow(w), rev_gc, offset, offset, XtWidth(cbw) - cbw->command.highlight_thickness, XtHeight(cbw) - cbw->command.highlight_thickness); } } } (*SuperClass->core_class.expose)(w, event, region); } static void XawCommandDestroy(Widget w) { CommandWidget cbw = (CommandWidget)w; /* Label will release cbw->command.normal_GC */ XtReleaseGC(w, cbw->command.inverse_GC); } /*ARGSUSED*/ static Boolean XawCommandSetValues(Widget current, Widget request, Widget cnew, ArgList args, Cardinal *num_args) { CommandWidget oldcbw = (CommandWidget)current; CommandWidget cbw = (CommandWidget)cnew; Boolean redisplay = False; if (oldcbw->core.sensitive != cbw->core.sensitive && !cbw->core.sensitive) { cbw->command.highlighted = HighlightNone; redisplay = True; } if (cbw->command.set) { unsigned int i; Pixel foreground, background; foreground = oldcbw->label.foreground; background = oldcbw->core.background_pixel; for (i = 0; i < *num_args; i++) { if (STR_EQUAL(args[i].name, XtNforeground)) background = cbw->label.foreground; else if (STR_EQUAL(args[i].name, XtNbackground)) foreground = cbw->core.background_pixel; } cbw->label.foreground = foreground; cbw->core.background_pixel = background; } if (oldcbw->label.foreground != cbw->label.foreground || oldcbw->core.background_pixel != cbw->core.background_pixel || oldcbw->command.highlight_thickness != cbw->command.highlight_thickness || oldcbw->label.font != cbw->label.font) { XtReleaseGC(cnew, cbw->command.inverse_GC); cbw->command.normal_GC = Get_GC(cbw, cbw->label.foreground, cbw->core.background_pixel); cbw->command.inverse_GC = Get_GC(cbw, cbw->core.background_pixel, cbw->label.foreground); XtReleaseGC(cnew, cbw->label.normal_GC); cbw->label.normal_GC = cbw->command.normal_GC; redisplay = True; } if (XtIsRealized(cnew) && oldcbw->command.shape_style != cbw->command.shape_style && !ShapeButton(cbw, True)) cbw->command.shape_style = oldcbw->command.shape_style; return (redisplay); } static void XawCommandGetValuesHook(Widget w, ArgList args, Cardinal *num_args) { CommandWidget cbw = (CommandWidget)w; unsigned int i; for (i = 0; i < *num_args; i++) { if (STR_EQUAL(args[i].name, XtNforeground)) *((String*)args[i].value) = cbw->command.set ? (String)cbw->core.background_pixel : (String)cbw->label.foreground; else if (STR_EQUAL(args[i].name, XtNbackground)) *((String*)args[i].value) = cbw->command.set ? (String)cbw->label.foreground : (String)cbw->core.background_pixel; } } static void XawCommandClassInitialize(void) { XawInitializeWidgetSet(); XtSetTypeConverter(XtRString, XtRShapeStyle, XmuCvtStringToShapeStyle, NULL, 0, XtCacheNone, NULL); XtSetTypeConverter(XtRShapeStyle, XtRString, XmuCvtShapeStyleToString, NULL, 0, XtCacheNone, NULL); } static Bool ShapeButton(CommandWidget cbw, Bool checkRectangular) { Dimension corner_size = 0; if (cbw->command.shape_style == XawShapeRoundedRectangle) { corner_size = XtWidth(cbw) < XtHeight(cbw) ? XtWidth(cbw) : XtHeight(cbw); corner_size = (corner_size * cbw->command.corner_round) / 100; } if (checkRectangular || cbw->command.shape_style != XawShapeRectangle) { if (!XmuReshapeWidget((Widget)cbw, cbw->command.shape_style, corner_size, corner_size)) { cbw->command.shape_style = XawShapeRectangle; return (False); } } return (True); } static void XawCommandRealize(Widget w, Mask *valueMask, XSetWindowAttributes *attributes) { (*commandWidgetClass->core_class.superclass->core_class.realize) (w, valueMask, attributes); ShapeButton((CommandWidget)w, False); } static void XawCommandResize(Widget w) { if (XtIsRealized(w)) ShapeButton((CommandWidget)w, False); (*commandWidgetClass->core_class.superclass->core_class.resize)(w); } static Bool ChangeSensitive(Widget w) { CommandWidget cbw = (CommandWidget)w; if (XtIsRealized(w)) { if (XtIsSensitive(w)) { if (w->core.border_pixmap != XtUnspecifiedPixmap) XSetWindowBorderPixmap(XtDisplay(w), XtWindow(w), w->core.border_pixmap); else XSetWindowBorder(XtDisplay(w), XtWindow(w), w->core.border_pixel); } else { if (cbw->simple.insensitive_border == None) cbw->simple.insensitive_border = XmuCreateStippledPixmap(XtScreen(w), w->core.border_pixel, cbw->command.set ? cbw->label.foreground : w->core.background_pixel, w->core.depth); XSetWindowBorderPixmap(XtDisplay(w), XtWindow(w), cbw->simple.insensitive_border); } } return (False); }