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#include <u.h>
2 
#include <libc.h>
3 
#include <draw.h>
4 
#include <thread.h>
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#include <mouse.h>
6 
#include <keyboard.h>
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#include <control.h>
8 
 
9 
typedef struct Textbutton Textbutton;
10 
 
11 
struct Textbutton
12 
{
13 
	Control;
14 
	CFont	*font;
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	CImage	*image;
16 
	CImage	*mask;
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	CImage	*light;
18 
	CImage	*bordercolor;
19 
	CImage	*textcolor;
20 
	CImage	*pressedtextcolor;
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	CImage	*paletextcolor;
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	int		pressed;
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	int		lastbut;
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	int		lastshow;
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	char		**line;
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	int		nline;
27 
	int		align;
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	int		border;
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	int		off;
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	int		showoff;
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	int		prepress;
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};
33 
 
34 
enum{
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	EAlign,
36 
	EBorder,
37 
	EBordercolor,
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	EFocus,
39 
	EFont,
40 
	EFormat,
41 
	EHide,
42 
	EImage,
43 
	ELight,
44 
	EMask,
45 
	EPaletextcolor,
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	EPressedtextcolor,
47 
	ERect,
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	EReveal,
49 
	EShow,
50 
	ESize,
51 
	EText,
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	ETextcolor,
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	EValue,
54 
};
55 
 
56 
static char *cmds[] = {
57 
	[EAlign] =			"align",
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	[EBorder] =		"border",
59 
	[EBordercolor] = 	"bordercolor",
60 
	[EFocus] = 		"focus",
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	[EFont] =			"font",
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	[EFormat] = 		"format",
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	[EHide] =			"hide",
64 
	[EImage] =		"image",
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	[ELight] =			"light",
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	[EMask] =			"mask",
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	[EPaletextcolor] ="paletextcolor",
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	[EPressedtextcolor] ="pressedtextcolor",
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	[ERect] =			"rect",
70 
	[EReveal] =		"reveal",
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	[EShow] =			"show",
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	[ESize] =			"size",
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	[EText] =			"text",
74 
	[ETextcolor] =		"textcolor",
75 
	[EValue] =			"value",
76 
	nil
77 
};
78 
 
79 
static void	textbuttonshow(Textbutton*);
80 
 
81 
static void
82 
textbuttonmouse(Control *c, Mouse *m)
83 
{
84 
	Textbutton *t;
85 
 
86 
	t = (Textbutton *)c;
87 
	if(m->buttons&7) {
88 
		if (ptinrect(m->xy,t->rect)) {
89 
			if (t->off) {
90 
				t->off = 0;
91 
				textbuttonshow(t);
92 
			}
93 
		} else {
94 
			if (!t->off) {
95 
				t->off = 1;
96 
				textbuttonshow(t);
97 
			}
98 
		}
99 
	}
100 
	if((m->buttons&7) != t->lastbut){
101 
		if(m->buttons & 7){
102 
			t->prepress = t->pressed;
103 
			if (t->pressed)
104 
				t->pressed = 0;
105 
			else
106 
				t->pressed = 1;
107 
			textbuttonshow(t);
108 
		}else{	/* generate event on button up */
109 
			if (ptinrect(m->xy,t->rect))
110 
				chanprint(t->event, t->format, t->name, t->pressed);
111 
			else {
112 
				t->off = 0;
113 
				t->pressed = t->prepress;
114 
				textbuttonshow(t);
115 
			}
116 
		}
117 
	}
118 
	t->lastbut = m->buttons & 7;
119 
}
120 
 
121 
static void
122 
textbuttonfree(Control *c)
123 
{
124 
	int i;
125 
	Textbutton *t;
126 
 
127 
	t = (Textbutton*)c;
128 
	_putctlfont(t->font);
129 
	_putctlimage(t->image);
130 
	_putctlimage(t->light);
131 
	_putctlimage(t->mask);
132 
	_putctlimage(t->textcolor);
133 
	_putctlimage(t->bordercolor);
134 
	_putctlimage(t->paletextcolor);
135 
	_putctlimage(t->pressedtextcolor);
136 
	for(i=0; i<t->nline; i++)
137 
		free(t->line[i]);
138 
	free(t->line);
139 
}
140 
 
141 
static void
142 
textbuttonshow(Textbutton *t)
143 
{
144 
	Rectangle r, clipr;
145 
	int i, dx, dy, w;
146 
	Font *f;
147 
	Point p, q;
148 
	Image *im;
149 
 
150 
	if(t->hidden || (t->lastshow == t->pressed && t->showoff == t->off))
151 
		return;
152 
	f = t->font->font;
153 
	draw(t->screen, t->rect, t->image->image, nil, t->image->image->r.min);
154 
	if(t->border > 0)
155 
		border(t->screen, t->rect, t->border, t->bordercolor->image, ZP);
156 
	/* text goes here */
157 
	dx = 0;
158 
	for(i=0; i<t->nline; i++){
159 
		w = stringwidth(f, t->line[i]);
160 
		if(dx < w)
161 
			dx = w;
162 
	}
163 
	dy = t->nline*f->height;
164 
	clipr = insetrect(t->rect, t->border);
165 
	p = _ctlalignpoint(clipr, dx, dy, t->align);
166 
	im = t->textcolor->image;
167 
	if(t->off)
168 
		im = t->paletextcolor->image;
169 
	else if(t->pressed)
170 
		im = t->pressedtextcolor->image;
171 
	for(i=0; i<t->nline; i++){
172 
		r.min = p;
173 
		r.max.x = p.x+dx;
174 
		r.max.y = p.y+f->height;
175 
		q = _ctlalignpoint(r, stringwidth(f, t->line[i]), f->height, t->align%3);
176 
		_string(t->screen, q, im,
177 
			ZP, f, t->line[i], nil, strlen(t->line[i]),
178 
			clipr, nil, ZP, SoverD);
179 
		p.y += f->height;
180 
	}
181 
	if(t->off || t->pressed)
182 
		draw(t->screen, t->rect, t->light->image, t->mask->image, t->mask->image->r.min);
183 
	t->lastshow = t->pressed;
184 
	t->showoff = t->off;
185 
	flushimage(display, 1);
186 
}
187 
 
188 
static void
189 
textbuttonctl(Control *c, CParse *cp)
190 
{
191 
	int cmd, i;
192 
	Rectangle r;
193 
	Textbutton *t;
194 
 
195 
	t = (Textbutton*)c;
196 
	cmd = _ctllookup(cp->args[0], cmds, nelem(cmds));
197 
	switch(cmd){
198 
	default:
199 
		ctlerror("%q: unrecognized message '%s'", t->name, cp->str);
200 
		break;
201 
	case EAlign:
202 
		_ctlargcount(t, cp, 2);
203 
		t->align = _ctlalignment(cp->args[1]);
204 
		t->lastshow = -1;	/* force redraw */
205 
		break;
206 
	case EBorder:
207 
		_ctlargcount(t, cp, 2);
208 
		t->border = cp->iargs[1];
209 
		t->lastshow = -1;	/* force redraw */
210 
		break;
211 
	case EBordercolor:
212 
		_ctlargcount(t, cp, 2);
213 
		_setctlimage(t, &t->bordercolor, cp->args[1]);
214 
		t->lastshow = -1;	/* force redraw */
215 
		break;
216 
	case EFocus:
217 
		break;
218 
	case EFont:
219 
		_ctlargcount(t, cp, 2);
220 
		_setctlfont(t, &t->font, cp->args[1]);
221 
		t->lastshow = -1;	/* force redraw */
222 
		break;
223 
	case EFormat:
224 
		_ctlargcount(t, cp, 2);
225 
		t->format = ctlstrdup(cp->args[1]);
226 
		break;
227 
	case EHide:
228 
		_ctlargcount(t, cp, 1);
229 
		t->hidden = 1;
230 
		break;
231 
	case EImage:
232 
		_ctlargcount(t, cp, 2);
233 
		_setctlimage(t, &t->image, cp->args[1]);
234 
		t->lastshow = -1;	/* force redraw */
235 
		break;
236 
	case ELight:
237 
		_ctlargcount(t, cp, 2);
238 
		_setctlimage(t, &t->light, cp->args[1]);
239 
		t->lastshow = -1;	/* force redraw */
240 
		break;
241 
	case EMask:
242 
		_ctlargcount(t, cp, 2);
243 
		_setctlimage(t, &t->mask, cp->args[1]);
244 
		t->lastshow = -1;	/* force redraw */
245 
		break;
246 
	case EPaletextcolor:
247 
		_ctlargcount(t, cp, 2);
248 
		_setctlimage(t, &t->paletextcolor, cp->args[1]);
249 
		t->lastshow = -1;	/* force redraw */
250 
		break;
251 
	case EPressedtextcolor:
252 
		_ctlargcount(t, cp, 2);
253 
		_setctlimage(t, &t->pressedtextcolor, cp->args[1]);
254 
		t->lastshow = -1;	/* force redraw */
255 
		break;
256 
	case ERect:
257 
		_ctlargcount(t, cp, 5);
258 
		r.min.x = cp->iargs[1];
259 
		r.min.y = cp->iargs[2];
260 
		r.max.x = cp->iargs[3];
261 
		r.max.y = cp->iargs[4];
262 
		if(Dx(r)<=0 || Dy(r)<=0)
263 
			ctlerror("%q: bad rectangle: %s", t->name, cp->str);
264 
		t->rect = r;
265 
		t->lastshow = -1;	/* force redraw */
266 
		break;
267 
	case EReveal:
268 
		_ctlargcount(t, cp, 1);
269 
		t->hidden = 0;
270 
		t->lastshow = -1;	/* force redraw */
271 
		textbuttonshow(t);
272 
		break;
273 
	case EShow:
274 
		_ctlargcount(t, cp, 1);
275 
		t->lastshow = -1;	/* force redraw */
276 
		textbuttonshow(t);
277 
		break;
278 
	case ESize:
279 
		if (cp->nargs == 3)
280 
			r.max = Pt(0x7fffffff, 0x7fffffff);
281 
		else{
282 
			_ctlargcount(t, cp, 5);
283 
			r.max.x = cp->iargs[3];
284 
			r.max.y = cp->iargs[4];
285 
		}
286 
		r.min.x = cp->iargs[1];
287 
		r.min.y = cp->iargs[2];
288 
		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)
289 
			ctlerror("%q: bad sizes: %s", t->name, cp->str);
290 
		t->size.min = r.min;
291 
		t->size.max = r.max;
292 
		break;
293 
	case EText:
294 
		/* free existing text */
295 
		for(i=0; i<t->nline; i++)
296 
			free(t->line[i]);
297 
		t->nline = cp->nargs-1;
298 
		t->line = ctlrealloc(t->line, t->nline*sizeof(char*));
299 
		for(i=0; i<t->nline; i++)
300 
			t->line[i] = ctlstrdup(cp->args[i+1]);
301 
		t->lastshow = -1;	/* force redraw */
302 
		textbuttonshow(t);
303 
		break;
304 
	case ETextcolor:
305 
		_ctlargcount(t, cp, 2);
306 
		_setctlimage(t, &t->textcolor, cp->args[1]);
307 
		t->lastshow = -1;	/* force redraw */
308 
		break;
309 
	case EValue:
310 
		_ctlargcount(t, cp, 2);
311 
		if((cp->iargs[1]!=0) != t->pressed){
312 
			t->pressed ^= 1;
313 
			textbuttonshow(t);
314 
		}
315 
		break;
316 
	}
317 
}
318 
 
319 
Control*
320 
createtextbutton(Controlset *cs, char *name)
321 
{
322 
	Textbutton *t;
323 
 
324 
	t = (Textbutton *)_createctl(cs, "textbutton", sizeof(Textbutton), name);
325 
	t->line = ctlmalloc(sizeof(char*));
326 
	t->nline = 0;
327 
	t->image = _getctlimage("white");
328 
	t->light = _getctlimage("yellow");
329 
	t->mask = _getctlimage("opaque");
330 
	t->bordercolor = _getctlimage("black");
331 
	t->textcolor = _getctlimage("black");
332 
	t->pressedtextcolor = _getctlimage("black");
333 
	t->paletextcolor = _getctlimage("paleyellow");
334 
	t->font = _getctlfont("font");
335 
	t->format = ctlstrdup("%q: value %d");
336 
	t->lastshow = -1;
337 
	t->mouse = textbuttonmouse;
338 
	t->ctl = textbuttonctl;
339 
	t->exit = textbuttonfree;
340 
	t->prepress = 0;
341 
	t->off = 0;
342 
	t->showoff = -1;
343 
	return (Control *)t;
344 
}