1 /*
2 * E-UAE - The portable Amiga Emulator
3 *
4 * Custom Gtk+ LED widget
5 *
6 * Copyright 2004 Martin Garton
7 * Copyright 2006 Richard Drummond
8 */
9
10 #include "sysdeps.h"
11 #include <sys/types.h>
12 #include <sys/stat.h>
13 #include <unistd.h>
14 #include <string.h>
15
16 #include "gcc_warnings.h"
17 GCC_DIAG_OFF(strict-prototypes)
18 #include <gtk/gtk.h>
19 GCC_DIAG_ON(strict-prototypes)
20
21 #include "led.h"
22
23 #define LED_W 20
24 #define LED_H 10
25
26 static void led_init (Led *theled);
27 static void led_class_init (LedClass *class);
28 static gint led_expose (GtkWidget *w, GdkEventExpose *event);
29 static void led_destroy (GtkObject *object);
30 static void led_realize (GtkWidget *widget);
31 static void led_unrealize (GtkWidget *widget);
32 static void led_size_request (GtkWidget *widget, GtkRequisition *requisition);
33 static void led_size_allocate (GtkWidget *widget, GtkAllocation *allocation);
34
35
led_get_type()36 GtkType led_get_type ()
37 {
38 static bool hasLed = false;
39 static GtkType led_type;
40
41 if (!hasLed) {
42 static const GtkTypeInfo led_info = {
43 (char *) "Led",
44 sizeof (Led),
45 sizeof (LedClass),
46 (GtkClassInitFunc) led_class_init,
47 (GtkObjectInitFunc) led_init,
48 NULL,
49 NULL,
50 (GtkClassInitFunc) NULL
51 };
52 led_type = gtk_type_unique (gtk_misc_get_type (), &led_info);
53 hasLed = true;
54 }
55 return led_type;
56 }
57
58 static GtkObjectClass *parent_class;
59
led_class_init(LedClass * class)60 static void led_class_init (LedClass *class)
61 {
62 GtkObjectClass *object_class = (GtkObjectClass *) class;
63 GtkWidgetClass *widget_class = (GtkWidgetClass *) class;
64 parent_class = gtk_type_class (gtk_widget_get_type ());
65
66 object_class->destroy = led_destroy;
67 widget_class->expose_event = led_expose;
68 widget_class->realize = led_realize;
69 widget_class->unrealize = led_unrealize;
70 widget_class->size_request = led_size_request;
71 widget_class->size_allocate = led_size_allocate;
72 }
73
led_init(Led * theled)74 static void led_init (Led *theled)
75 {
76 theled->color = LED_OFF;
77 }
78
led_new(void)79 GtkWidget *led_new (void)
80 {
81 // return gtk_type_new (led_get_type ());
82 Led *w = LED (gtk_type_new (led_get_type()));
83
84 return GTK_WIDGET (w);
85 }
86
led_expose(GtkWidget * w,GdkEventExpose * event)87 static gint led_expose (GtkWidget *w, GdkEventExpose *event)
88 {
89 if (w && GTK_WIDGET_DRAWABLE (w)) {
90 Led *theled = LED (w);
91 gdk_draw_rectangle (w->window, theled->gc, true, 0, 0,
92 w->allocation.width, w->allocation.height);
93 }
94 return 0;
95 }
96
led_realize(GtkWidget * widget)97 static void led_realize (GtkWidget *widget)
98 {
99 Led *theled;
100 GdkWindowAttr attributes;
101 gint attributes_mask;
102
103 g_return_if_fail (widget != NULL);
104 g_return_if_fail (IS_LED (widget));
105
106 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
107 theled = LED (widget);
108
109 attributes.x = widget->allocation.x;
110 attributes.y = widget->allocation.y;
111 attributes.width = widget->allocation.width;
112 attributes.height = widget->allocation.height;
113 attributes.wclass = GDK_INPUT_OUTPUT;
114 attributes.window_type = GDK_WINDOW_CHILD;
115 attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
116 attributes.visual = gtk_widget_get_visual (widget);
117 attributes.colormap = gtk_widget_get_colormap (widget);
118
119 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
120 widget->window = gdk_window_new (widget->parent->window, &attributes, attributes_mask);
121
122 gdk_window_set_user_data (widget->window, widget);
123
124 theled->gc = gdk_gc_new (widget->window);
125 gdk_gc_set_rgb_fg_color (theled->gc, &theled->color);
126
127 led_expose (widget, NULL);
128 }
129
led_unrealize(GtkWidget * widget)130 static void led_unrealize (GtkWidget *widget)
131 {
132 Led *theled = LED (widget);
133
134 g_object_unref (theled->gc);
135 theled->gc = NULL;
136
137 GTK_WIDGET_CLASS (parent_class)->unrealize (widget);
138 }
139
led_size_request(GtkWidget * widget,GtkRequisition * requisition)140 static void led_size_request (GtkWidget *widget, GtkRequisition *requisition)
141 {
142 requisition->width = LED_W;
143 requisition->height = LED_H;
144 }
145
led_size_allocate(GtkWidget * widget,GtkAllocation * allocation)146 static void led_size_allocate (GtkWidget *widget, GtkAllocation *allocation)
147 {
148 // Led *theled = LED (widget);
149
150 g_return_if_fail (widget != NULL);
151 g_return_if_fail (IS_LED (widget));
152 g_return_if_fail (allocation != NULL);
153
154 widget->allocation = *allocation;
155
156 if (GTK_WIDGET_REALIZED (widget)) {
157 gdk_window_move_resize (widget->window,
158 allocation->x, allocation->y,
159 allocation->width, allocation->height);
160 }
161 }
162
led_destroy(GtkObject * o)163 static void led_destroy (GtkObject *o)
164 {
165 g_return_if_fail (o != NULL);
166 g_return_if_fail (IS_LED (o));
167
168 // TODO: ?? free any stuff here.
169
170 GTK_OBJECT_CLASS (parent_class)->destroy (o);
171 }
172
led_set_color(Led * l,GdkColor col)173 void led_set_color (Led *l, GdkColor col)
174 {
175 l->color = col;
176
177 if (GTK_WIDGET_REALIZED (l)) {
178 gdk_gc_set_rgb_fg_color (l->gc, &l->color);
179 led_expose (GTK_WIDGET (l), NULL);
180 }
181 }
182