4 #include <gtk/gtkmain.h>
5 #include <gtk/gtksignal.h>
6 #include "gtkviscreen.h"
8 #define DEFAULT_VI_SCREEN_WIDTH_CHARS 80
9 #define DEFAULT_VI_SCREEN_HEIGHT_LINES 25
10 #define VI_SCREEN_BORDER_ROOM 1
22 static void gtk_vi_screen_class_init (GtkViScreenClass
*klass
);
23 static void gtk_vi_screen_set_arg (GtkObject
*object
,
26 static void gtk_vi_screen_get_arg (GtkObject
*object
,
29 static void gtk_vi_screen_init (GtkViScreen
*vi
);
30 static void gtk_vi_screen_destroy (GtkObject
*object
);
31 static void gtk_vi_screen_realize (GtkWidget
*widget
);
33 static void gtk_vi_screen_map (GtkWidget *widget);
34 static void gtk_vi_screen_unmap (GtkWidget *widget);
36 static void gtk_vi_screen_size_request (GtkWidget
*widget
,
37 GtkRequisition
*requisition
);
38 static void gtk_vi_screen_size_allocate (GtkWidget
*widget
,
39 GtkAllocation
*allocation
);
41 static void gtk_vi_screen_adjustment (GtkAdjustment *adjustment,
45 static void gtk_vi_screen_draw (GtkWidget
*widget
,
47 static gint
gtk_vi_screen_expose (GtkWidget
*widget
,
48 GdkEventExpose
*event
);
50 static void recompute_geometry (GtkViScreen
* vi
);
51 static void expose_text (GtkViScreen
* vi
, GdkRectangle
*area
, gboolean cursor
);
52 static void draw_lines(GtkViScreen
*vi
, gint y
, gint x
, gint ymax
, gint xmax
);
53 static void mark_lines(GtkViScreen
*vi
, gint ymin
, gint xmin
, gint ymax
, gint xmax
);
55 static GtkWidgetClass
*parent_class
= NULL
;
56 static guint vi_screen_signals
[LAST_SIGNAL
] = { 0 };
58 #define CharAt(scr,y,x) scr->chars + (y) * scr->cols + x
59 #define FlagAt(scr,y,x) (scr->reverse + (y) * scr->cols + x)
61 #define COLOR_STANDARD 0x00
62 #define COLOR_STANDOUT 0x01
65 enum { SA_ALTERNATE
, SA_INVERSE
};
68 gtk_vi_screen_attribute(GtkViScreen
*vi
, gint attribute
, gint on
)
73 fprintf(stderr, "alternate: %d\n", on);
77 vi
->color
= on
? COLOR_STANDOUT
: COLOR_STANDARD
;
83 gtk_vi_screen_move(GtkViScreen
*vi
, gint row
, gint col
)
85 mark_lines(vi
, vi
->cury
, vi
->curx
, vi
->cury
+1, vi
->curx
+1);
88 mark_lines(vi
, vi
->cury
, vi
->curx
, vi
->cury
+1, vi
->curx
+1);
92 gtk_vi_screen_clrtoel (GtkViScreen
*vi
)
94 memset(CharAt(vi
,vi
->cury
,vi
->curx
), ' ', vi
->cols
- vi
->curx
);
95 memset(FlagAt(vi
,vi
->cury
,vi
->curx
), COLOR_STANDARD
, vi
->cols
- vi
->curx
);
96 mark_lines(vi
, vi
->cury
, vi
->curx
, vi
->cury
+1, vi
->cols
);
100 gtk_vi_screen_addstr(GtkViScreen
*vi
, const char *str
, int len
)
103 fprintf(stderr, "%d --%.*s--\n", len, len, str);
105 memcpy(CharAt(vi
,vi
->cury
,vi
->curx
), str
, len
);
106 memset(FlagAt(vi
,vi
->cury
,vi
->curx
), vi
->color
, len
);
107 mark_lines(vi
, vi
->cury
, vi
->curx
, vi
->cury
+1, vi
->curx
+ len
);
108 if ((vi
->curx
+= len
) >= vi
->cols
) {
109 if (++vi
->cury
>= vi
->rows
) {
110 vi
->cury
= vi
->rows
-1;
111 vi
->curx
= vi
->cols
-1;
119 gtk_vi_screen_deleteln(GtkViScreen
*vi
)
122 gint rows
= vi
->rows
- (y
+1);
124 memmove(CharAt(vi
,y
,0), CharAt(vi
,y
+1,0), rows
* vi
->cols
);
125 memset(CharAt(vi
,vi
->rows
-1,0), ' ', vi
->cols
);
126 memmove(FlagAt(vi
,y
,0), FlagAt(vi
,y
+1,0), rows
* vi
->cols
);
127 memset(FlagAt(vi
,vi
->rows
-1,0), COLOR_STANDARD
, vi
->cols
);
128 mark_lines(vi
, y
, 0, vi
->rows
, vi
->cols
);
132 gtk_vi_screen_insertln(GtkViScreen
*vi
)
135 gint rows
= vi
->rows
- (y
+1);
137 memmove(CharAt(vi
,y
+1,0), CharAt(vi
,y
,0), rows
* vi
->cols
);
138 memset(CharAt(vi
,y
,0), ' ', vi
->cols
);
139 memmove(FlagAt(vi
,y
+1,0), FlagAt(vi
,y
,0), rows
* vi
->cols
);
140 memset(FlagAt(vi
,y
,0), COLOR_STANDARD
, vi
->cols
);
141 mark_lines(vi
, y
, 0, vi
->rows
, vi
->cols
);
145 gtk_vi_screen_refresh(GtkViScreen
*vi
)
147 if (vi
->marked_maxy
== 0)
149 draw_lines(vi
, vi
->marked_y
, vi
->marked_x
, vi
->marked_maxy
, vi
->marked_maxx
);
150 vi
->marked_x
= vi
->cols
;
151 vi
->marked_y
= vi
->rows
;
157 gtk_vi_screen_rewrite(GtkViScreen
*vi
, gint row
)
159 memset(FlagAt(vi
,row
,0), COLOR_STANDARD
, vi
->cols
);
160 mark_lines(vi
, row
, 0, row
+1, vi
->cols
);
164 gtk_vi_screen_get_type (void)
166 static GtkType vi_screen_type
= 0;
170 static const GtkTypeInfo vi_screen_info
=
173 sizeof (GtkViScreen
),
174 sizeof (GtkViScreenClass
),
175 (GtkClassInitFunc
) gtk_vi_screen_class_init
,
176 (GtkObjectInitFunc
) gtk_vi_screen_init
,
177 /* reserved_1 */ NULL
,
178 /* reserved_2 */ NULL
,
179 (GtkClassInitFunc
) NULL
,
182 vi_screen_type
= gtk_type_unique (GTK_TYPE_WIDGET
, &vi_screen_info
);
185 return vi_screen_type
;
189 gtk_vi_screen_class_init (GtkViScreenClass
*class)
191 GtkObjectClass
*object_class
;
192 GtkWidgetClass
*widget_class
;
194 object_class
= (GtkObjectClass
*) class;
195 widget_class
= (GtkWidgetClass
*) class;
196 parent_class
= gtk_type_class (GTK_TYPE_WIDGET
);
198 vi_screen_signals
[RESIZED
] =
199 gtk_signal_new ("resized",
202 GTK_SIGNAL_OFFSET (GtkViScreenClass
, resized
),
203 gtk_marshal_NONE__INT_INT
,
204 GTK_TYPE_NONE
, 2, GTK_TYPE_INT
, GTK_TYPE_INT
, 0);
206 gtk_object_class_add_signals(object_class
, vi_screen_signals
, LAST_SIGNAL
);
208 gtk_object_add_arg_type ("GtkViScreen::vadjustment",
210 GTK_ARG_READWRITE
| GTK_ARG_CONSTRUCT
,
213 object_class
->set_arg
= gtk_vi_screen_set_arg
;
214 object_class
->get_arg
= gtk_vi_screen_get_arg
;
215 object_class
->destroy
= gtk_vi_screen_destroy
;
217 widget_class
->realize
= gtk_vi_screen_realize
;
219 widget_class->map = gtk_vi_screen_map;
220 widget_class->unmap = gtk_vi_screen_unmap;
222 widget_class
->size_request
= gtk_vi_screen_size_request
;
223 widget_class
->size_allocate
= gtk_vi_screen_size_allocate
;
224 widget_class
->draw
= gtk_vi_screen_draw
;
225 widget_class
->expose_event
= gtk_vi_screen_expose
;
227 class->rename
= NULL
;
228 class->resized
= NULL
;
232 gtk_vi_screen_set_arg (GtkObject
*object
,
236 GtkViScreen
*vi_screen
;
238 vi_screen
= GTK_VI_SCREEN (object
);
242 case ARG_VADJUSTMENT
:
243 gtk_vi_screen_set_adjustment (vi_screen
, GTK_VALUE_POINTER (*arg
));
251 gtk_vi_screen_get_arg (GtkObject
*object
,
255 GtkViScreen
*vi_screen
;
257 vi_screen
= GTK_VI_SCREEN (object
);
261 case ARG_VADJUSTMENT
:
262 GTK_VALUE_POINTER (*arg
) = vi_screen
->vadj
;
265 arg
->type
= GTK_TYPE_INVALID
;
271 gtk_vi_screen_init (GtkViScreen
*vi
)
275 GTK_WIDGET_SET_FLAGS (vi
, GTK_CAN_FOCUS
);
277 vi
->text_area
= NULL
;
280 vi
->color
= COLOR_STANDARD
;
284 style
= gtk_style_copy(GTK_WIDGET(vi
)->style
);
285 style
->font
= gdk_font_load("fixed");
286 GTK_WIDGET(vi
)->style
= style
;
290 gtk_vi_screen_destroy (GtkObject
*object
)
292 GtkViScreen
*vi_screen
;
294 g_return_if_fail (object
!= NULL
);
295 g_return_if_fail (GTK_IS_VI_SCREEN (object
));
297 vi_screen
= (GtkViScreen
*) object
;
300 gtk_signal_disconnect_by_data (GTK_OBJECT (vi_screen->vadj), vi_screen);
303 GTK_OBJECT_CLASS(parent_class
)->destroy (object
);
307 gtk_vi_screen_new (GtkAdjustment
*vadj
)
311 vi
= gtk_widget_new (GTK_TYPE_VI_SCREEN
,
320 gtk_vi_screen_set_adjustment (GtkViScreen
*vi_screen
,
323 g_return_if_fail (vi_screen
!= NULL
);
324 g_return_if_fail (GTK_IS_VI_SCREEN (vi_screen
));
326 g_return_if_fail (GTK_IS_ADJUSTMENT (vadj
));
328 vadj
= GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 1.0, 0.0, 1.0, 0.0, 0.0));
330 if (vi_screen
->vadj
&& (vi_screen
->vadj
!= vadj
))
332 gtk_signal_disconnect_by_data (GTK_OBJECT (vi_screen
->vadj
), vi_screen
);
333 gtk_object_unref (GTK_OBJECT (vi_screen
->vadj
));
336 if (vi_screen
->vadj
!= vadj
)
338 vi_screen
->vadj
= vadj
;
339 gtk_object_ref (GTK_OBJECT (vi_screen
->vadj
));
340 gtk_object_sink (GTK_OBJECT (vi_screen
->vadj
));
343 gtk_signal_connect (GTK_OBJECT (vi_screen->vadj), "changed",
344 (GtkSignalFunc) gtk_vi_screen_adjustment,
346 gtk_signal_connect (GTK_OBJECT (vi_screen->vadj), "value_changed",
347 (GtkSignalFunc) gtk_vi_screen_adjustment,
349 gtk_signal_connect (GTK_OBJECT (vi_screen->vadj), "disconnect",
350 (GtkSignalFunc) gtk_vi_screen_disconnect,
352 gtk_vi_screen_adjustment (vadj, vi_screen);
358 gtk_vi_screen_realize (GtkWidget
*widget
)
361 GdkWindowAttr attributes
;
362 gint attributes_mask
;
364 g_return_if_fail (widget
!= NULL
);
365 g_return_if_fail (GTK_IS_VI_SCREEN (widget
));
367 vi
= GTK_VI_SCREEN (widget
);
368 GTK_WIDGET_SET_FLAGS (vi
, GTK_REALIZED
);
370 attributes
.window_type
= GDK_WINDOW_CHILD
;
371 attributes
.x
= widget
->allocation
.x
;
372 attributes
.y
= widget
->allocation
.y
;
373 attributes
.width
= widget
->allocation
.width
;
374 attributes
.height
= widget
->allocation
.height
;
375 attributes
.wclass
= GDK_INPUT_OUTPUT
;
376 attributes
.visual
= gtk_widget_get_visual (widget
);
377 attributes
.colormap
= gtk_widget_get_colormap (widget
);
378 attributes
.event_mask
= gtk_widget_get_events (widget
);
379 attributes
.event_mask
|= (GDK_EXPOSURE_MASK
|
380 GDK_BUTTON_PRESS_MASK
|
381 GDK_BUTTON_RELEASE_MASK
|
382 GDK_BUTTON_MOTION_MASK
|
383 GDK_ENTER_NOTIFY_MASK
|
384 GDK_LEAVE_NOTIFY_MASK
|
386 attributes_mask
= GDK_WA_X
| GDK_WA_Y
| GDK_WA_VISUAL
| GDK_WA_COLORMAP
;
388 widget
->window
= gdk_window_new (gtk_widget_get_parent_window (widget
), &attributes
, attributes_mask
);
389 gdk_window_set_user_data (widget
->window
, vi
);
391 attributes
.x
= (widget
->style
->klass
->xthickness
+ VI_SCREEN_BORDER_ROOM
);
392 attributes
.y
= (widget
->style
->klass
->ythickness
+ VI_SCREEN_BORDER_ROOM
);
393 attributes
.width
= MAX (1, (gint
)widget
->allocation
.width
- (gint
)attributes
.x
* 2);
394 attributes
.height
= MAX (1, (gint
)widget
->allocation
.height
- (gint
)attributes
.y
* 2);
396 vi
->text_area
= gdk_window_new (widget
->window
, &attributes
, attributes_mask
);
397 gdk_window_set_user_data (vi
->text_area
, vi
);
399 widget
->style
= gtk_style_attach (widget
->style
, widget
->window
);
401 /* Can't call gtk_style_set_background here because it's handled specially */
402 gdk_window_set_background (widget
->window
, &widget
->style
->base
[GTK_STATE_NORMAL
]);
403 gdk_window_set_background (vi
->text_area
, &widget
->style
->base
[GTK_STATE_NORMAL
]);
405 vi
->gc
= gdk_gc_new (vi
->text_area
);
407 gdk_gc_set_exposures (vi
->gc
, TRUE
);
408 gdk_gc_set_foreground (vi
->gc
, &widget
->style
->text
[GTK_STATE_NORMAL
]);
410 vi
->reverse_gc
= gdk_gc_new (vi
->text_area
);
411 gdk_gc_set_foreground (vi
->reverse_gc
, &widget
->style
->base
[GTK_STATE_NORMAL
]);
413 gdk_window_show (vi
->text_area
);
415 recompute_geometry (vi
);
419 gtk_vi_screen_size_request (GtkWidget
*widget
,
420 GtkRequisition
*requisition
)
428 g_return_if_fail (widget
!= NULL
);
429 g_return_if_fail (GTK_IS_VI_SCREEN (widget
));
430 g_return_if_fail (requisition
!= NULL
);
432 vi
= GTK_VI_SCREEN (widget
);
434 xthickness
= widget
->style
->klass
->xthickness
+ VI_SCREEN_BORDER_ROOM
;
435 ythickness
= widget
->style
->klass
->ythickness
+ VI_SCREEN_BORDER_ROOM
;
437 vi
->ch_ascent
= widget
->style
->font
->ascent
;
438 vi
->ch_height
= (widget
->style
->font
->ascent
+ widget
->style
->font
->descent
);
439 vi
->ch_width
= gdk_text_width (widget
->style
->font
, "A", 1);
440 char_height
= DEFAULT_VI_SCREEN_HEIGHT_LINES
* vi
->ch_height
;
441 char_width
= DEFAULT_VI_SCREEN_WIDTH_CHARS
* vi
->ch_width
;
443 requisition
->width
= char_width
+ xthickness
* 2;
444 requisition
->height
= char_height
+ ythickness
* 2;
448 gtk_vi_screen_size_allocate (GtkWidget
*widget
,
449 GtkAllocation
*allocation
)
453 g_return_if_fail (widget
!= NULL
);
454 g_return_if_fail (GTK_IS_VI_SCREEN (widget
));
455 g_return_if_fail (allocation
!= NULL
);
457 vi
= GTK_VI_SCREEN (widget
);
459 widget
->allocation
= *allocation
;
460 if (GTK_WIDGET_REALIZED (widget
))
462 gdk_window_move_resize (widget
->window
,
463 allocation
->x
, allocation
->y
,
464 allocation
->width
, allocation
->height
);
466 gdk_window_move_resize (vi
->text_area
,
467 widget
->style
->klass
->xthickness
+ VI_SCREEN_BORDER_ROOM
,
468 widget
->style
->klass
->ythickness
+ VI_SCREEN_BORDER_ROOM
,
469 MAX (1, (gint
)widget
->allocation
.width
- (gint
)(widget
->style
->klass
->xthickness
+
470 (gint
)VI_SCREEN_BORDER_ROOM
) * 2),
471 MAX (1, (gint
)widget
->allocation
.height
- (gint
)(widget
->style
->klass
->ythickness
+
472 (gint
)VI_SCREEN_BORDER_ROOM
) * 2));
474 recompute_geometry (vi
);
480 gtk_vi_screen_adjustment (GtkAdjustment *adjustment,
481 GtkViScreen *vi_screen)
483 g_return_if_fail (adjustment != NULL);
484 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
485 g_return_if_fail (vi_screen != NULL);
486 g_return_if_fail (GTK_IS_VI_SCREEN (vi_screen));
492 gtk_vi_screen_draw (GtkWidget
*widget
,
495 g_return_if_fail (widget
!= NULL
);
496 g_return_if_fail (GTK_IS_VI_SCREEN (widget
));
497 g_return_if_fail (area
!= NULL
);
499 if (GTK_WIDGET_DRAWABLE (widget
))
501 expose_text (GTK_VI_SCREEN (widget
), area
, TRUE
);
502 gtk_widget_draw_focus (widget
);
507 gtk_vi_screen_expose (GtkWidget
*widget
,
508 GdkEventExpose
*event
)
510 g_return_val_if_fail (widget
!= NULL
, FALSE
);
511 g_return_val_if_fail (GTK_IS_VI_SCREEN (widget
), FALSE
);
512 g_return_val_if_fail (event
!= NULL
, FALSE
);
514 if (event
->window
== GTK_VI_SCREEN (widget
)->text_area
)
516 expose_text (GTK_VI_SCREEN (widget
), &event
->area
, TRUE
);
518 else if (event
->count
== 0)
520 gtk_widget_draw_focus (widget
);
527 recompute_geometry (GtkViScreen
* vi
)
535 //xthickness = widget->style->klass->xthickness + VI_SCREEN_BORDER_ROOM;
536 //ythickness = widget->style->klass->ythickness + VI_SCREEN_BORDER_ROOM;
538 gdk_window_get_size (vi
->text_area
, &width
, &height
);
540 rows
= height
/ vi
->ch_height
;
541 cols
= width
/ vi
->ch_width
;
543 if (rows
== vi
->rows
&& cols
== vi
->cols
)
546 vi
->marked_x
= vi
->cols
= cols
;
547 vi
->marked_y
= vi
->rows
= rows
;
552 vi
->chars
= g_new(gchar
, vi
->rows
*vi
->cols
);
553 memset(vi
->chars
, ' ', vi
->rows
*vi
->cols
);
555 vi
->reverse
= g_new(gchar
, vi
->rows
*vi
->cols
);
556 memset(vi
->reverse
, 0, vi
->rows
*vi
->cols
);
558 gtk_signal_emit(GTK_OBJECT(vi
), vi_screen_signals
[RESIZED
], vi
->rows
, vi
->cols
);
562 expose_text (GtkViScreen
* vi
, GdkRectangle
*area
, gboolean cursor
)
567 gdk_window_clear_area (vi
->text_area
, area
->x
, area
->y
,
568 area
->width
, area
->height
);
569 ymax
= MIN((area
->y
+ area
->height
+ vi
->ch_height
- 1) / vi
->ch_height
,
571 xmin
= area
->x
/ vi
->ch_width
;
572 xmax
= MIN((area
->x
+ area
->width
+ vi
->ch_width
- 1) / vi
->ch_width
,
574 draw_lines(vi
, area
->y
/ vi
->ch_height
, xmin
, ymax
, xmax
);
577 #define Inverse(screen,y,x) \
578 ((*FlagAt(screen,y,x) == COLOR_STANDOUT) ^ \
579 (screen->cury == y && screen->curx == x))
582 draw_lines(GtkViScreen
*vi
, gint ymin
, gint xmin
, gint ymax
, gint xmax
)
588 for (y
= ymin
, line
= vi
->chars
+ y
*vi
->cols
;
589 y
< ymax
; ++y
, line
+= vi
->cols
) {
590 for (x
= xmin
; x
< xmax
; x
+=len
) {
592 for (inverse
= Inverse(vi
,y
,x
), len
= 1;
593 x
+len
< xmax
&& Inverse(vi
,y
,x
+len
) == inverse
; ++len
);
601 gdk_draw_rectangle(vi
->text_area
, bg
, 1, x
* vi
->ch_width
,
602 y
* vi
->ch_height
, len
* vi
->ch_width
,
604 gdk_draw_text (vi
->text_area
, GTK_WIDGET(vi
)->style
->font
, fg
,
606 y
* vi
->ch_height
+ vi
->ch_ascent
,
613 mark_lines(GtkViScreen
*vi
, gint ymin
, gint xmin
, gint ymax
, gint xmax
)
615 if (ymin
< vi
->marked_y
) vi
->marked_y
= ymin
;
616 if (xmin
< vi
->marked_x
) vi
->marked_x
= xmin
;
617 if (ymax
> vi
->marked_maxy
) vi
->marked_maxy
= ymax
;
618 if (xmax
> vi
->marked_maxx
) vi
->marked_maxx
= xmax
;