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2 - 1 
/* use button 3 for a proper function to the application, that is not for plumber
2 
 *  as default control(2) supposes.
3 
 *  codes are mostly from /sys/src/libcontrol/textbutton.c
4 
 */
5 
#include <u.h>
6 
#include <libc.h>
7 
#include <draw.h>
8 
#include <thread.h>
9 
#include <mouse.h>
10 
#include <keyboard.h>
11 
#include <control.h>
12 
 
13 
typedef struct Textbutton3 Textbutton3;
14 
 
15 
struct Textbutton3
16 
{
17 
	Control;
18 
	CFont	*font;
19 
	CImage	*image;
20 
	CImage	*mask;
21 
	CImage	*light;
22 
	CImage	*bordercolor;
23 
	CImage	*textcolor;
24 
	CImage	*pressedtextcolor;
25 
	int		pressed;
26 
	int		lastbut;
27 
	int		lastshow;
28 
	char		**line;
29 
	int		nline;
30 
	int		align;
31 
	int		border;
32 
	int		left;
33 
	int		middle;
34 
	int		right;
35 
	int		toggle;
36 
	int		gettextflg;
37 
};
38 
 
39 
enum{
40 
	EAlign,
41 
	EBorder,
42 
	EBordercolor,
43 
	EFocus,
44 
	EFont,
45 
	EFormat,
46 
	EHide,
47 
	EImage,
48 
	ELight,
49 
	EMask,
50 
	EPressedtextcolor,
51 
	ERect,
52 
	EReveal,
53 
	EShow,
54 
	ESize,
55 
	EText,
56 
	ETextcolor,
57 
	EEnable,
58 
	EDisable,
59 
	EToggle,
60 
	EGettext,
61 
	EValue,
62 
};
63 
 
64 
static char *cmds[] = {
65 
	[EAlign] =			"align",
66 
	[EBorder] =		"border",
67 
	[EBordercolor] = 	"bordercolor",
68 
	[EFocus] = 		"focus",
69 
	[EFont] =			"font",
70 
	[EFormat] = 		"format",
71 
	[EHide] =			"hide",
72 
	[EImage] =		"image",
73 
	[ELight] =			"light",
74 
	[EMask] =			"mask",
75 
	[EPressedtextcolor] ="pressedtextcolor",
76 
	[ERect] =			"rect",
77 
	[EReveal] =		"reveal",
78 
	[EShow] =			"show",
79 
	[ESize] =			"size",
80 
	[EText] =			"text",
81 
	[ETextcolor] =		"textcolor",
82 
	[EEnable] =		"enable",
83 
	[EDisable] =		"disable",
84 
	[EToggle] =		"toggle",
85 
	[EGettext] =		"gettext",
86 
	[EValue] =			"value",
87 
	nil
88 
};
89 
 
90 
static void	textbutton3show(Textbutton3 *);
91 
 
92 
static void
93 
textbutton3mouse(Control *c, Mouse *m)
94 
{
95 
	Textbutton3 *t;
96 
 
97 
	t = (Textbutton3 *)c;
98 
	if(t->left == 1) {
99 
		if((m->buttons&1) == 1 && (t->lastbut&1) == 0){
100 
			t->pressed ^= 1;
101 
			textbutton3show(t);
102 
			t->lastbut = m->buttons & 1;
103 
		}else if((m->buttons&1) == 0 && (t->lastbut&1) == 1){
104 
			if(t->gettextflg == 0)
105 
				chanprint(t->event, t->format, t->name, t->pressed, m->xy.x, m->xy.y);
106 
			else
107 
				chanprint(t->event, "%q: value %q", t->name, t->line[0]);
108 
			t->pressed ^= 1;
109 
			textbutton3show(t);
110 
			t->lastbut = m->buttons & 1;
111 
		}
112 
	}
113 
	if(t->middle == 1) {
114 
		if((m->buttons&2) == 2 && (t->lastbut&2) == 0){
115 
			t->pressed ^= 2;
116 
			textbutton3show(t);
117 
			t->lastbut = m->buttons & 2;
118 
		}else if((m->buttons&2) == 0 && (t->lastbut&2) == 2){
119 
			if(t->gettextflg == 0)
120 
				chanprint(t->event, t->format, t->name, t->pressed, m->xy.x, m->xy.y);
121 
			else
122 
				chanprint(t->event, "%q: value %q", t->name, t->line[0]);
123 
			t->pressed ^= 2;
124 
			textbutton3show(t);
125 
			t->lastbut = m->buttons & 2;
126 
		}
127 
	}
128 
	if(t->right == 1) {
129 
		if((m->buttons&4) == 4 && (t->lastbut&4) == 0){
130 
			t->pressed ^= 4;
131 
			textbutton3show(t);
132 
			t->lastbut = m->buttons & 4;
133 
		}else if((m->buttons&4) == 0 && (t->lastbut&4) == 4){
134 
			if(t->gettextflg == 0)
135 
				chanprint(t->event, t->format, t->name, t->pressed, m->xy.x, m->xy.y);
136 
			else
137 
				chanprint(t->event, "%q: value %q", t->name, t->line[0]);
138 
			t->pressed ^= 4;
139 
			textbutton3show(t);
140 
			t->lastbut = m->buttons & 4;
141 
		}
142 
	}
143 
}
144 
 
145 
static void
146 
textbutton3free(Control *c)
147 
{
148 
	int i;
149 
	Textbutton3 *t;
150 
 
151 
	t = (Textbutton3*)c;
152 
	_putctlfont(t->font);
153 
	_putctlimage(t->image);
154 
	_putctlimage(t->light);
155 
	_putctlimage(t->mask);
156 
	_putctlimage(t->textcolor);
157 
	_putctlimage(t->bordercolor);
158 
	_putctlimage(t->pressedtextcolor);
159 
	for(i=0; i<t->nline; i++)
160 
		free(t->line[i]);
161 
	free(t->line);
162 
}
163 
 
164 
static void
165 
textbutton3show(Textbutton3 *t)
166 
{
167 
	Rectangle r, clipr;
168 
	int i, dx, dy, w;
169 
	Font *f;
170 
	Point p, q;
171 
	Image *im;
172 
 
173 
	if(t->hidden || t->lastshow == t->pressed)
174 
		return;
175 
	f = t->font->font;
176 
	draw(t->screen, t->rect, t->image->image, nil, t->image->image->r.min);
177 
	if(t->pressed || t->toggle)
178 
		draw(t->screen, t->rect, t->light->image, t->mask->image, t->mask->image->r.min);
179 
	if(t->border > 0)
180 
		border(t->screen, t->rect, t->border, t->bordercolor->image, ZP);
181 
	/* text goes here */
182 
	dx = 0;
183 
	for(i=0; i<t->nline; i++){
184 
		w = stringwidth(f, t->line[i]);		/*****/
185 
		if(dx < w)
186 
			dx = w;
187 
	}
188 
	dy = t->nline*f->height;
189 
	clipr = insetrect(t->rect, t->border);
190 
	p = _ctlalignpoint(clipr, dx, dy, t->align);
191 
	im = t->textcolor->image;
192 
	if(t->pressed)
193 
		im = t->pressedtextcolor->image;
194 
	for(i=0; i<t->nline; i++){
195 
		r.min = p;
196 
		r.max.x = p.x+dx;
197 
		r.max.y = p.y+f->height;
198 
		q = _ctlalignpoint(r, stringwidth(f, t->line[i]), f->height, t->align%3);
199 
		_string(t->screen, q, im,
200 
			ZP, f, t->line[i], nil, strlen(t->line[i]),
201 
			clipr, nil, ZP, SoverD);
202 
		p.y += f->height;
203 
	}
204 
	t->lastshow = t->pressed;
205 
	flushimage(display, 1);
206 
}
207 
 
208 
static void
209 
textbutton3ctl(Control *c, CParse *cp)
210 
{
211 
	int cmd, i;
212 
	Rectangle r;
213 
	Textbutton3 *t;
214 
 
215 
	t = (Textbutton3*)c;
216 
	cmd = _ctllookup(cp->args[0], cmds, nelem(cmds));
217 
	switch(cmd){
218 
	default:
219 
		ctlerror("%q: unrecognized message '%s'", t->name, cp->str);
220 
		break;
221 
	case EAlign:
222 
		_ctlargcount(t, cp, 2);
223 
		t->align = _ctlalignment(cp->args[1]);
224 
		t->lastshow = -1;	/* force redraw */
225 
		break;
226 
	case EBorder:
227 
		_ctlargcount(t, cp, 2);
228 
		t->border = cp->iargs[1];
229 
		t->lastshow = -1;	/* force redraw */
230 
		break;
231 
	case EBordercolor:
232 
		_ctlargcount(t, cp, 2);
233 
		_setctlimage(t, &t->bordercolor, cp->args[1]);
234 
		t->lastshow = -1;	/* force redraw */
235 
		break;
236 
	case EFocus:
237 
		break;
238 
	case EFont:
239 
		_ctlargcount(t, cp, 2);
240 
		_setctlfont(t, &t->font, cp->args[1]);
241 
		t->lastshow = -1;	/* force redraw */
242 
		break;
243 
	case EFormat:
244 
		_ctlargcount(t, cp, 2);
245 
		t->format = ctlstrdup(cp->args[1]);
246 
		break;
247 
	case EHide:
248 
		_ctlargcount(t, cp, 1);
249 
		t->hidden = 1;
250 
		break;
251 
	case EImage:
252 
		_ctlargcount(t, cp, 2);
253 
		_setctlimage(t, &t->image, cp->args[1]);
254 
		t->lastshow = -1;	/* force redraw */
255 
		break;
256 
	case ELight:
257 
		_ctlargcount(t, cp, 2);
258 
		_setctlimage(t, &t->light, cp->args[1]);
259 
		t->lastshow = -1;	/* force redraw */
260 
		break;
261 
	case EMask:
262 
		_ctlargcount(t, cp, 2);
263 
		_setctlimage(t, &t->mask, cp->args[1]);
264 
		t->lastshow = -1;	/* force redraw */
265 
		break;
266 
	case EPressedtextcolor:
267 
		_ctlargcount(t, cp, 2);
268 
		_setctlimage(t, &t->pressedtextcolor, cp->args[1]);
269 
		t->lastshow = -1;	/* force redraw */
270 
		break;
271 
	case ERect:
272 
		_ctlargcount(t, cp, 5);
273 
		r.min.x = cp->iargs[1];
274 
		r.min.y = cp->iargs[2];
275 
		r.max.x = cp->iargs[3];
276 
		r.max.y = cp->iargs[4];
277 
		if(Dx(r)<=0 || Dy(r)<=0)
278 
			ctlerror("%q: bad rectangle: %s", t->name, cp->str);
279 
		t->rect = r;
280 
		t->lastshow = -1;	/* force redraw */
281 
		break;
282 
	case EReveal:
283 
		_ctlargcount(t, cp, 1);
284 
		t->hidden = 0;
285 
		t->lastshow = -1;	/* force redraw */
286 
		textbutton3show(t);
287 
		break;
288 
	case EShow:
289 
		_ctlargcount(t, cp, 1);
290 
		t->lastshow = -1;	/* force redraw */
291 
		textbutton3show(t);
292 
		break;
293 
	case ESize:
294 
		if (cp->nargs == 3)
295 
			r.max = Pt(0x7fffffff, 0x7fffffff);
296 
		else{
297 
			_ctlargcount(t, cp, 5);
298 
			r.max.x = cp->iargs[3];
299 
			r.max.y = cp->iargs[4];
300 
		}
301 
		r.min.x = cp->iargs[1];
302 
		r.min.y = cp->iargs[2];
303 
		if(r.min.x<=0 || r.min.y<=0 || r.max.x<=0 || r.max.y<=0 || r.max.x < r.min.x || r.max.y < r.min.y)
304 
			ctlerror("%q: bad sizes: %s", t->name, cp->str);
305 
		t->size.min = r.min;
306 
		t->size.max = r.max;
307 
		break;
308 
	case EText:
309 
		/* free existing text */
310 
		for(i=0; i<t->nline; i++)
311 
			free(t->line[i]);
312 
		t->nline = cp->nargs-1;
313 
		t->line = ctlrealloc(t->line, t->nline*sizeof(char*));
314 
		for(i=0; i<t->nline; i++)
315 
			t->line[i] = ctlstrdup(cp->args[i+1]);
316 
		t->lastshow = -1;	/* force redraw */
317 
		textbutton3show(t);
318 
		break;
319 
	case ETextcolor:
320 
		_ctlargcount(t, cp, 2);
321 
		_setctlimage(t, &t->textcolor, cp->args[1]);
322 
		t->lastshow = -1;	/* force redraw */
323 
		break;
324 
	case EEnable:
325 
		_ctlargcount(t, cp, 2);
326 
		if(strcmp(cp->args[1], "left") == 0)
327 
				t->left = 1;
328 
		else if(strcmp(cp->args[1], "middle") == 0)
329 
				t->middle = 1;
330 
		else if(strcmp(cp->args[1], "right") == 0)
331 
				t->right = 1;
332 
		break;
333 
	case EDisable:
334 
		_ctlargcount(t, cp, 2);
335 
		if(strcmp(cp->args[1], "left") == 0)
336 
			t->left = 0;
337 
		else if(strcmp(cp->args[1], "middle") == 0)
338 
			t->middle = 0;
339 
		else if(strcmp(cp->args[1], "right") == 0)
340 
			t->right = 0;
341 
		break;
342 
	case EToggle:
343 
		_ctlargcount(t, cp, 2);
344 
		if(strcmp(cp->args[1], "on") == 0)
345 
			t->toggle = 1;
346 
		else if(strcmp(cp->args[1], "off") == 0)
347 
			t->toggle = 0;
348 
		t->lastshow = -1;	/* force redraw */
349 
		break;
350 
	case EGettext:
351 
		_ctlargcount(t, cp, 2);
352 
		if(strcmp(cp->args[1], "on") == 0)
353 
			t->gettextflg = 1;
354 
		else if(strcmp(cp->args[1], "off") == 0)
355 
			t->gettextflg = 0;
356 
		break;
357 
	case EValue:
358 
		_ctlargcount(t, cp, 2);
359 
		if((cp->iargs[1]!=0) != t->pressed){
360 
			t->pressed ^= 1;
361 
			textbutton3show(t);
362 
		}
363 
		break;
364 
	}
365 
}
366 
 
367 
Control*
368 
createtextbutton3(Controlset *cs, char *name)
369 
{
370 
	Textbutton3 *t;
371 
 
372 
	t = (Textbutton3 *)_createctl(cs, "textbutton3", sizeof(Textbutton3), name);
373 
	t->line = ctlmalloc(sizeof(char*));
374 
	t->nline = 0;
375 
	t->image = _getctlimage("white");
376 
	t->light = _getctlimage("yellow");
377 
	t->mask = _getctlimage("opaque");
378 
	t->bordercolor = _getctlimage("black");
379 
	t->textcolor = _getctlimage("black");
380 
	t->pressedtextcolor = _getctlimage("black");
381 
	t->font = _getctlfont("font");
382 
	t->format = ctlstrdup("%q: value %d %d %d");
383 
	t->lastshow = -1;
384 
	t->mouse = textbutton3mouse;
385 
	t->ctl = textbutton3ctl;
386 
	t->exit = textbutton3free;
387 
	t->left = 1;
388 
	t->middle = 1;
389 
	t->right = 1;
390 
	t->toggle = 0;
391 
	t->gettextflg = 0;
392 
	return (Control *)t;
393 
}