265 lines
5.1 KiB
C
265 lines
5.1 KiB
C
#include <u.h>
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#include <libc.h>
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#include <draw.h>
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#include <thread.h>
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#include <mouse.h>
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#include <keyboard.h>
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#include <control.h>
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typedef struct Button Button;
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struct Button
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{
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Control;
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CImage *image;
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CImage *mask;
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CImage *light;
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CImage *pale;
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CImage *bordercolor;
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int pressed;
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int lastbut;
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int lastshow;
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int border;
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int align;
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int off;
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int prepress;
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};
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enum{
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EAlign,
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EBorder,
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EBordercolor,
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EFocus,
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EFormat,
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EHide,
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EImage,
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ELight,
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EMask,
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EPale,
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ERect,
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EReveal,
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EShow,
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ESize,
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EValue,
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};
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static char *cmds[] = {
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[EAlign] = "align",
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[EBorder] = "border",
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[EBordercolor] = "bordercolor",
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[EFocus] = "focus",
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[EFormat] = "format",
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[EHide] = "hide",
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[EImage] = "image",
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[ELight] = "light",
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[EMask] = "mask",
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[EPale] = "pale",
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[ERect] = "rect",
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[EReveal] = "reveal",
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[EShow] = "show",
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[ESize] = "size",
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[EValue] = "value",
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nil
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};
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static void
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buttonfree(Control *c)
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{
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Button *b;
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b = (Button *)c;
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_putctlimage(b->image);
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_putctlimage(b->mask);
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_putctlimage(b->light);
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_putctlimage(b->pale);
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_putctlimage(b->bordercolor);
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}
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static void
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buttonshow(Button *b)
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{
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Rectangle r;
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if (b->hidden)
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return;
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r = b->rect;
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if(b->border > 0){
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border(b->screen, r, b->border, b->bordercolor->image, ZP);
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r = insetrect(b->rect, b->border);
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}
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draw(b->screen, r, b->image->image, nil, b->image->image->r.min);
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if(b->off)
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draw(b->screen, r, b->pale->image, b->mask->image, b->mask->image->r.min);
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else if(b->pressed)
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draw(b->screen, r, b->light->image, b->mask->image, b->mask->image->r.min);
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b->lastshow = b->pressed;
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flushimage(display, 1);
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}
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static void
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buttonmouse(Control *c, Mouse *m)
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{
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Button *b;
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b = (Button*)c;
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if(m->buttons&7) {
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if (ptinrect(m->xy,b->rect)) {
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if (b->off) {
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b->off = 0;
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buttonshow(b);
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}
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} else {
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if (!b->off) {
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b->off = 1;
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buttonshow(b);
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}
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}
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}
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if((m->buttons&7) != b->lastbut){
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if(m->buttons & 7){
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b->prepress = b->pressed;
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if (b->pressed)
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b->pressed = 0;
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else
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b->pressed = m->buttons & 7;
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buttonshow(b);
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}else /* generate event on button up */
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if (ptinrect(m->xy,b->rect))
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chanprint(b->event, b->format, b->name, b->pressed);
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else {
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b->off = 0;
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b->pressed = b->prepress;
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buttonshow(b);
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}
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}
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b->lastbut = m->buttons & 7;
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}
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static void
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buttonctl(Control *c, CParse *cp)
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{
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int cmd;
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Rectangle r;
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Button *b;
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b = (Button*)c;
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cmd = _ctllookup(cp->args[0], cmds, nelem(cmds));
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switch(cmd){
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default:
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ctlerror("%q: unrecognized message '%s'", b->name, cp->str);
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break;
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case EAlign:
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_ctlargcount(b, cp, 2);
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b->align = _ctlalignment(cp->args[1]);
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b->lastshow = -1; /* force redraw */
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break;
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case EBorder:
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_ctlargcount(b, cp, 2);
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b->border = cp->iargs[1];
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b->lastshow = -1; /* force redraw */
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break;
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case EBordercolor:
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_ctlargcount(b, cp, 2);
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_setctlimage(b, &b->bordercolor, cp->args[1]);
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b->lastshow = -1; /* force redraw */
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break;
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case EFocus:
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/* ignore focus change */
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break;
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case EFormat:
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_ctlargcount(b, cp, 2);
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b->format = ctlstrdup(cp->args[1]);
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break;
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case EHide:
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_ctlargcount(b, cp, 1);
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b->hidden = 1;
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break;
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case EImage:
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_ctlargcount(b, cp, 2);
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_setctlimage(b, &b->image, cp->args[1]);
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b->lastshow = -1; /* force redraw */
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break;
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case ELight:
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_ctlargcount(b, cp, 2);
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_setctlimage(b, &b->light, cp->args[1]);
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b->lastshow = -1; /* force redraw */
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break;
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case EMask:
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_ctlargcount(b, cp, 2);
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_setctlimage(b, &b->mask, cp->args[1]);
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b->lastshow = -1; /* force redraw */
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break;
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case EPale:
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_ctlargcount(b, cp, 2);
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_setctlimage(b, &b->pale, cp->args[1]);
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b->lastshow = -1; /* force redraw */
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break;
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case ERect:
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_ctlargcount(b, cp, 5);
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r.min.x = cp->iargs[1];
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r.min.y = cp->iargs[2];
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r.max.x = cp->iargs[3];
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r.max.y = cp->iargs[4];
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if(Dx(r)<0 || Dy(r)<0)
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ctlerror("%q: bad rectangle: %s", b->name, cp->str);
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b->rect = r;
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b->lastshow = -1; /* force redraw */
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break;
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case EReveal:
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_ctlargcount(b, cp, 1);
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b->hidden = 0;
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buttonshow(b);
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break;
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case EShow:
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_ctlargcount(b, cp, 1);
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buttonshow(b);
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break;
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case ESize:
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if (cp->nargs == 3)
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r.max = Pt(0x7fffffff, 0x7fffffff);
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else{
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_ctlargcount(b, cp, 5);
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r.max.x = cp->iargs[3];
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r.max.y = cp->iargs[4];
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}
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r.min.x = cp->iargs[1];
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r.min.y = cp->iargs[2];
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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)
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ctlerror("%q: bad sizes: %s", b->name, cp->str);
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b->size.min = r.min;
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b->size.max = r.max;
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break;
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case EValue:
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_ctlargcount(b, cp, 2);
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if((cp->iargs[1]!=0) != b->pressed){
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b->pressed ^= 1;
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buttonshow(b);
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}
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break;
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}
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}
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Control*
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createbutton(Controlset *cs, char *name)
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{
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Button *b;
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b = (Button*)_createctl(cs, "button", sizeof(Button), name);
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b->image = _getctlimage("white");
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b->mask = _getctlimage("opaque");
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b->light = _getctlimage("yellow");
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b->pale = _getctlimage("paleyellow");
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b->bordercolor = _getctlimage("black");
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b->format = ctlstrdup("%q: value %d");
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b->lastshow = -1;
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b->border = 0;
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b->align = Aupperleft;
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b->ctl = buttonctl;
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b->mouse = buttonmouse;
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b->key = nil;
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b->exit = buttonfree;
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b->off = 0;
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b->prepress = 0;
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return (Control*)b;
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}
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