Import sources from 2011-03-30 iso image

1 files changed, 344 insertions, 0 deletions

diff --git a/sys/src/libcontrol/textbutton.c b/sys/src/libcontrol/textbutton.c
new file mode 100755
index 000000000..9f1730762
--- /dev/null
+++ b/sys/src/libcontrol/textbutton.c
@@ -0,0 +1,344 @@
+#include <u.h>
+#include <libc.h>
+#include <draw.h>
+#include <thread.h>
+#include <mouse.h>
+#include <keyboard.h>
+#include <control.h>
+
+typedef struct Textbutton Textbutton;
+
+struct Textbutton
+{
+	Control;
+	CFont	*font;
+	CImage	*image;
+	CImage	*mask;
+	CImage	*light;
+	CImage	*bordercolor;
+	CImage	*textcolor;
+	CImage	*pressedtextcolor;
+	CImage	*paletextcolor;
+	int		pressed;
+	int		lastbut;
+	int		lastshow;
+	char		**line;
+	int		nline;
+	int		align;
+	int		border;
+	int		off;
+	int		showoff;
+	int		prepress;
+};
+
+enum{
+	EAlign,
+	EBorder,
+	EBordercolor,
+	EFocus,
+	EFont,
+	EFormat,
+	EHide,
+	EImage,
+	ELight,
+	EMask,
+	EPaletextcolor,
+	EPressedtextcolor,
+	ERect,
+	EReveal,
+	EShow,
+	ESize,
+	EText,
+	ETextcolor,
+	EValue,
+};
+
+static char *cmds[] = {
+	[EAlign] =			"align",
+	[EBorder] =		"border",
+	[EBordercolor] = 	"bordercolor",
+	[EFocus] = 		"focus",
+	[EFont] =			"font",
+	[EFormat] = 		"format",
+	[EHide] =			"hide",
+	[EImage] =		"image",
+	[ELight] =			"light",
+	[EMask] =			"mask",
+	[EPaletextcolor] ="paletextcolor",
+	[EPressedtextcolor] ="pressedtextcolor",
+	[ERect] =			"rect",
+	[EReveal] =		"reveal",
+	[EShow] =			"show",
+	[ESize] =			"size",
+	[EText] =			"text",
+	[ETextcolor] =		"textcolor",
+	[EValue] =			"value",
+	nil
+};
+
+static void	textbuttonshow(Textbutton*);
+
+static void
+textbuttonmouse(Control *c, Mouse *m)
+{
+	Textbutton *t;
+
+	t = (Textbutton *)c;
+	if(m->buttons&7) {
+		if (ptinrect(m->xy,t->rect)) {
+			if (t->off) {
+				t->off = 0;
+				textbuttonshow(t);
+			}
+		} else {
+			if (!t->off) {
+				t->off = 1;
+				textbuttonshow(t);
+			}
+		}
+	}
+	if((m->buttons&7) != t->lastbut){
+		if(m->buttons & 7){
+			t->prepress = t->pressed;
+			if (t->pressed)
+				t->pressed = 0;
+			else
+				t->pressed = 1;
+			textbuttonshow(t);
+		}else{	/* generate event on button up */
+			if (ptinrect(m->xy,t->rect))
+				chanprint(t->event, t->format, t->name, t->pressed);
+			else {
+				t->off = 0;
+				t->pressed = t->prepress;
+				textbuttonshow(t);
+			}
+		}
+	}
+	t->lastbut = m->buttons & 7;
+}
+
+static void
+textbuttonfree(Control *c)
+{
+	int i;
+	Textbutton *t;
+
+	t = (Textbutton*)c;
+	_putctlfont(t->font);
+	_putctlimage(t->image);
+	_putctlimage(t->light);
+	_putctlimage(t->mask);
+	_putctlimage(t->textcolor);
+	_putctlimage(t->bordercolor);
+	_putctlimage(t->paletextcolor);
+	_putctlimage(t->pressedtextcolor);
+	for(i=0; i<t->nline; i++)
+		free(t->line[i]);
+	free(t->line);
+}
+
+static void
+textbuttonshow(Textbutton *t)
+{
+	Rectangle r, clipr;
+	int i, dx, dy, w;
+	Font *f;
+	Point p, q;
+	Image *im;
+
+	if(t->hidden || (t->lastshow == t->pressed && t->showoff == t->off))
+		return;
+	f = t->font->font;
+	draw(t->screen, t->rect, t->image->image, nil, t->image->image->r.min);
+	if(t->border > 0)
+		border(t->screen, t->rect, t->border, t->bordercolor->image, ZP);
+	/* text goes here */
+	dx = 0;
+	for(i=0; i<t->nline; i++){
+		w = stringwidth(f, t->line[i]);
+		if(dx < w)
+			dx = w;
+	}
+	dy = t->nline*f->height;
+	clipr = insetrect(t->rect, t->border);
+	p = _ctlalignpoint(clipr, dx, dy, t->align);
+	im = t->textcolor->image;
+	if(t->off)
+		im = t->paletextcolor->image;
+	else if(t->pressed)
+		im = t->pressedtextcolor->image;
+	for(i=0; i<t->nline; i++){
+		r.min = p;
+		r.max.x = p.x+dx;
+		r.max.y = p.y+f->height;
+		q = _ctlalignpoint(r, stringwidth(f, t->line[i]), f->height, t->align%3);
+		_string(t->screen, q, im,
+			ZP, f, t->line[i], nil, strlen(t->line[i]),
+			clipr, nil, ZP, SoverD);
+		p.y += f->height;
+	}
+	if(t->off || t->pressed)
+		draw(t->screen, t->rect, t->light->image, t->mask->image, t->mask->image->r.min);
+	t->lastshow = t->pressed;
+	t->showoff = t->off;
+	flushimage(display, 1);
+}
+
+static void
+textbuttonctl(Control *c, CParse *cp)
+{
+	int cmd, i;
+	Rectangle r;
+	Textbutton *t;
+
+	t = (Textbutton*)c;
+	cmd = _ctllookup(cp->args[0], cmds, nelem(cmds));
+	switch(cmd){
+	default:
+		ctlerror("%q: unrecognized message '%s'", t->name, cp->str);
+		break;
+	case EAlign:
+		_ctlargcount(t, cp, 2);
+		t->align = _ctlalignment(cp->args[1]);
+		t->lastshow = -1;	/* force redraw */
+		break;
+	case EBorder:
+		_ctlargcount(t, cp, 2);
+		t->border = cp->iargs[1];
+		t->lastshow = -1;	/* force redraw */
+		break;
+	case EBordercolor:
+		_ctlargcount(t, cp, 2);
+		_setctlimage(t, &t->bordercolor, cp->args[1]);
+		t->lastshow = -1;	/* force redraw */
+		break;
+	case EFocus:
+		break;
+	case EFont:
+		_ctlargcount(t, cp, 2);
+		_setctlfont(t, &t->font, cp->args[1]);
+		t->lastshow = -1;	/* force redraw */
+		break;
+	case EFormat:
+		_ctlargcount(t, cp, 2);
+		t->format = ctlstrdup(cp->args[1]);
+		break;
+	case EHide:
+		_ctlargcount(t, cp, 1);
+		t->hidden = 1;
+		break;
+	case EImage:
+		_ctlargcount(t, cp, 2);
+		_setctlimage(t, &t->image, cp->args[1]);
+		t->lastshow = -1;	/* force redraw */
+		break;
+	case ELight:
+		_ctlargcount(t, cp, 2);
+		_setctlimage(t, &t->light, cp->args[1]);
+		t->lastshow = -1;	/* force redraw */
+		break;
+	case EMask:
+		_ctlargcount(t, cp, 2);
+		_setctlimage(t, &t->mask, cp->args[1]);
+		t->lastshow = -1;	/* force redraw */
+		break;
+	case EPaletextcolor:
+		_ctlargcount(t, cp, 2);
+		_setctlimage(t, &t->paletextcolor, cp->args[1]);
+		t->lastshow = -1;	/* force redraw */
+		break;
+	case EPressedtextcolor:
+		_ctlargcount(t, cp, 2);
+		_setctlimage(t, &t->pressedtextcolor, cp->args[1]);
+		t->lastshow = -1;	/* force redraw */
+		break;
+	case ERect:
+		_ctlargcount(t, cp, 5);
+		r.min.x = cp->iargs[1];
+		r.min.y = cp->iargs[2];
+		r.max.x = cp->iargs[3];
+		r.max.y = cp->iargs[4];
+		if(Dx(r)<=0 || Dy(r)<=0)
+			ctlerror("%q: bad rectangle: %s", t->name, cp->str);
+		t->rect = r;
+		t->lastshow = -1;	/* force redraw */
+		break;
+	case EReveal:
+		_ctlargcount(t, cp, 1);
+		t->hidden = 0;
+		t->lastshow = -1;	/* force redraw */
+		textbuttonshow(t);
+		break;
+	case EShow:
+		_ctlargcount(t, cp, 1);
+		t->lastshow = -1;	/* force redraw */
+		textbuttonshow(t);
+		break;
+	case ESize:
+		if (cp->nargs == 3)
+			r.max = Pt(0x7fffffff, 0x7fffffff);
+		else{
+			_ctlargcount(t, cp, 5);
+			r.max.x = cp->iargs[3];
+			r.max.y = cp->iargs[4];
+		}
+		r.min.x = cp->iargs[1];
+		r.min.y = cp->iargs[2];
+		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)
+			ctlerror("%q: bad sizes: %s", t->name, cp->str);
+		t->size.min = r.min;
+		t->size.max = r.max;
+		break;
+	case EText:
+		/* free existing text */
+		for(i=0; i<t->nline; i++)
+			free(t->line[i]);
+		t->nline = cp->nargs-1;
+		t->line = ctlrealloc(t->line, t->nline*sizeof(char*));
+		for(i=0; i<t->nline; i++)
+			t->line[i] = ctlstrdup(cp->args[i+1]);
+		t->lastshow = -1;	/* force redraw */
+		textbuttonshow(t);
+		break;
+	case ETextcolor:
+		_ctlargcount(t, cp, 2);
+		_setctlimage(t, &t->textcolor, cp->args[1]);
+		t->lastshow = -1;	/* force redraw */
+		break;
+	case EValue:
+		_ctlargcount(t, cp, 2);
+		if((cp->iargs[1]!=0) != t->pressed){
+			t->pressed ^= 1;
+			textbuttonshow(t);
+		}
+		break;
+	}
+}
+
+Control*
+createtextbutton(Controlset *cs, char *name)
+{
+	Textbutton *t;
+
+	t = (Textbutton *)_createctl(cs, "textbutton", sizeof(Textbutton), name);
+	t->line = ctlmalloc(sizeof(char*));
+	t->nline = 0;
+	t->image = _getctlimage("white");
+	t->light = _getctlimage("yellow");
+	t->mask = _getctlimage("opaque");
+	t->bordercolor = _getctlimage("black");
+	t->textcolor = _getctlimage("black");
+	t->pressedtextcolor = _getctlimage("black");
+	t->paletextcolor = _getctlimage("paleyellow");
+	t->font = _getctlfont("font");
+	t->format = ctlstrdup("%q: value %d");
+	t->lastshow = -1;
+	t->mouse = textbuttonmouse;
+	t->ctl = textbuttonctl;
+	t->exit = textbuttonfree;
+	t->prepress = 0;
+	t->off = 0;
+	t->showoff = -1;
+	return (Control *)t;
+}