1 /* $Id$ $Revision$ */
2 /* vim:set shiftwidth=4 ts=8: */
3 
4 /*************************************************************************
5  * Copyright (c) 2011 AT&T Intellectual Property
6  * All rights reserved. This program and the accompanying materials
7  * are made available under the terms of the Eclipse Public License v1.0
8  * which accompanies this distribution, and is available at
9  * http://www.eclipse.org/legal/epl-v10.html
10  *
11  * Contributors: See CVS logs. Details at http://www.graphviz.org/
12  *************************************************************************/
13 
14 /* Lefteris Koutsofios - AT&T Labs Research */
15 
16 #include "common.h"
17 #include "g.h"
18 #include "gcommon.h"
19 #include "mem.h"
20 
21 #define WBU widget->u.b
22 
GBcreatewidget(Gwidget_t * parent,Gwidget_t * widget,int attrn,Gwattr_t * attrp)23 int GBcreatewidget (
24     Gwidget_t *parent, Gwidget_t *widget, int attrn, Gwattr_t *attrp
25 ) {
26     PIXsize_t ps;
27     DWORD wflags;
28     char *s;
29     int ai;
30 
31     if (!parent) {
32         Gerr (POS, G_ERRNOPARENTWIDGET);
33         return -1;
34     }
35     wflags = WS_CHILDWINDOW | BS_PUSHBUTTON;
36     WBU->func = NULL;
37     ps.x = ps.y = MINBWSIZE;
38     s = "button";
39     for (ai = 0; ai < attrn; ai++) {
40         switch (attrp[ai].id) {
41         case G_ATTRSIZE:
42             GETSIZE (attrp[ai].u.s, ps, MINBWSIZE);
43             break;
44         case G_ATTRBORDERWIDTH:
45             wflags |= WS_BORDER;
46             break;
47         case G_ATTRTEXT:
48             s = attrp[ai].u.t;
49             break;
50         case G_ATTRWINDOWID:
51             Gerr (POS, G_ERRCANNOTSETATTR1, "windowid");
52             return -1;
53         case G_ATTRBUTTONCB:
54             WBU->func = attrp[ai].u.func;
55             break;
56         case G_ATTRUSERDATA:
57             widget->udata = attrp[ai].u.u;
58             break;
59         default:
60             Gerr (POS, G_ERRBADATTRID, attrp[ai].id);
61             return -1;
62         }
63     }
64     Gadjustwrect (parent, &ps);
65     if (!(widget->w = CreateWindow (
66         "BUTTON", s, wflags, 0, 0, ps.x, ps.y,
67         parent->w, (HMENU) (widget - &Gwidgets[0]), hinstance, NULL
68     ))) {
69         Gerr (POS, G_ERRCANNOTCREATEWIDGET);
70         return -1;
71     }
72     ShowWindow (widget->w, SW_SHOW);
73     UpdateWindow (widget->w);
74     if (parent && parent->type == G_ARRAYWIDGET)
75         Gawinsertchild (parent, widget);
76     return 0;
77 }
78 
GBsetwidgetattr(Gwidget_t * widget,int attrn,Gwattr_t * attrp)79 int GBsetwidgetattr (Gwidget_t *widget, int attrn, Gwattr_t *attrp) {
80     Gwidget_t *parent;
81     PIXsize_t ps;
82     DWORD wflags1;
83     int ai;
84 
85     parent = (widget->pwi == -1) ? NULL : &Gwidgets[widget->pwi];
86     wflags1 = SWP_NOMOVE | SWP_NOZORDER;
87     for (ai = 0; ai < attrn; ai++) {
88         switch (attrp[ai].id) {
89         case G_ATTRSIZE:
90             GETSIZE (attrp[ai].u.s, ps, MINBWSIZE);
91             Gadjustwrect (parent, &ps);
92             SetWindowPos (widget->w, (HWND) NULL, 0, 0, ps.x, ps.y, wflags1);
93             break;
94         case G_ATTRBORDERWIDTH:
95             Gerr (POS, G_ERRCANNOTSETATTR2, "borderwidth");
96             return -1;
97         case G_ATTRTEXT:
98             SetWindowText (widget->w, attrp[ai].u.t);
99             break;
100         case G_ATTRWINDOWID:
101             Gerr (POS, G_ERRCANNOTSETATTR2, "windowid");
102             return -1;
103         case G_ATTRBUTTONCB:
104             WBU->func = attrp[ai].u.func;
105             break;
106         case G_ATTRUSERDATA:
107             widget->udata = attrp[ai].u.u;
108             break;
109         default:
110             Gerr (POS, G_ERRBADATTRID, attrp[ai].id);
111             return -1;
112         }
113     }
114     return 0;
115 }
116 
GBgetwidgetattr(Gwidget_t * widget,int attrn,Gwattr_t * attrp)117 int GBgetwidgetattr (Gwidget_t *widget, int attrn, Gwattr_t *attrp) {
118     RECT r;
119     int ai;
120 
121     for (ai = 0; ai < attrn; ai++) {
122         switch (attrp[ai].id) {
123         case G_ATTRSIZE:
124             GetWindowRect (widget->w, &r);
125             attrp[ai].u.s.x = r.right - r.left;
126             attrp[ai].u.s.y = r.bottom - r.top;
127             break;
128         case G_ATTRBORDERWIDTH:
129             Gerr (POS, G_ERRCANNOTGETATTR, "borderwidth");
130             return -1;
131         case G_ATTRTEXT:
132             GetWindowText (widget->w, &Gbufp[0], Gbufn);
133             attrp[ai].u.t = &Gbufp[0];
134             break;
135         case G_ATTRWINDOWID:
136             sprintf (&Gbufp[0], "0x%lx", widget->w);
137             attrp[ai].u.t = &Gbufp[0];
138             break;
139         case G_ATTRBUTTONCB:
140             attrp[ai].u.func = WBU->func;
141             break;
142         case G_ATTRUSERDATA:
143             attrp[ai].u.u = widget->udata;
144             break;
145         default:
146             Gerr (POS, G_ERRBADATTRID, attrp[ai].id);
147             return -1;
148         }
149     }
150     return 0;
151 }
152 
GBdestroywidget(Gwidget_t * widget)153 int GBdestroywidget (Gwidget_t *widget) {
154     Gwidget_t *parent;
155 
156     parent = (widget->pwi == -1) ? NULL : &Gwidgets[widget->pwi];
157     if (parent && parent->type == G_ARRAYWIDGET)
158         Gawdeletechild (parent, widget);
159     DestroyWindow (widget->w);
160     return 0;
161 }
162