206 lines
3.9 KiB
C
206 lines
3.9 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 Label Label;
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struct Label
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{
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Control;
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int border;
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CFont *font;
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CImage *image;
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CImage *textcolor;
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CImage *bordercolor;
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char *text;
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int align;
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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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EFont,
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EHide,
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EImage,
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ERect,
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EReveal,
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EShow,
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ESize,
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ETextcolor,
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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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[EFont] = "font",
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[EHide] = "hide",
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[EImage] = "image",
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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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[ETextcolor] = "textcolor",
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[EValue] = "value",
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nil
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};
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static void labelshow(Label*);
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static void
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labelfree(Control *c)
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{
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Label *l;
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l = (Label*)c;
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_putctlfont(l->font);
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_putctlimage(l->image);
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_putctlimage(l->textcolor);
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_putctlimage(l->bordercolor);
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free(l->text);
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}
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static void
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labelshow(Label *l)
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{
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Rectangle r;
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Point p;
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if (l->hidden)
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return;
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r = l->rect;
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draw(l->screen, r, l->image->image, nil, l->image->image->r.min);
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if(l->border > 0){
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border(l->screen, r, l->border, l->bordercolor->image, l->bordercolor->image->r.min);
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r = insetrect(r, l->border);
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}
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p = _ctlalignpoint(r,
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stringwidth(l->font->font, l->text),
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l->font->font->height, l->align);
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_string(l->screen, p, l->textcolor->image,
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ZP, l->font->font, l->text, nil, strlen(l->text),
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r, nil, ZP, SoverD);
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flushimage(display, 1);
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}
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static void
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labelctl(Control *c, CParse *cp)
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{
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int cmd;
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Rectangle r;
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Label *l;
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l = (Label*)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'", l->name, cp->str);
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break;
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case EAlign:
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_ctlargcount(l, cp, 2);
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l->align = _ctlalignment(cp->args[1]);
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break;
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case EBorder:
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_ctlargcount(l, cp, 2);
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if(cp->iargs[1] < 0)
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ctlerror("%q: bad border: %c", l->name, cp->str);
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l->border = cp->iargs[1];
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break;
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case EBordercolor:
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_ctlargcount(l, cp, 2);
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_setctlimage(l, &l->bordercolor, cp->args[1]);
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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 EFont:
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_ctlargcount(l, cp, 2);
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_setctlfont(l, &l->font, cp->args[1]);
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break;
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case EHide:
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_ctlargcount(l, cp, 1);
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l->hidden = 1;
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break;
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case EImage:
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_ctlargcount(l, cp, 2);
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_setctlimage(l, &l->image, cp->args[1]);
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break;
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case ERect:
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_ctlargcount(l, 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", l->name, cp->str);
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l->rect = r;
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break;
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case EReveal:
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_ctlargcount(l, cp, 1);
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l->hidden = 0;
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labelshow(l);
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break;
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case EShow:
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_ctlargcount(l, cp, 1);
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labelshow(l);
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/*
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_ctlargcount(l, cp, 2);
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_setctlimage(l, &l->textcolor, cp->args[1]);
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*/
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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(l, 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", l->name, cp->str);
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l->size.min = r.min;
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l->size.max = r.max;
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break;
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case ETextcolor:
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_ctlargcount(l, cp, 2);
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_setctlimage(l, &l->textcolor, cp->args[1]);
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break;
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case EValue:
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_ctlargcount(l, cp, 2);
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if(strcmp(cp->args[1], l->text) != 0){
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free(l->text);
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l->text = ctlstrdup(cp->args[1]);
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labelshow(l);
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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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createlabel(Controlset *cs, char *name)
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{
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Label *l;
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l = (Label*)_createctl(cs, "label", sizeof(Label), name);
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l->text = ctlstrdup("");
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l->image = _getctlimage("white");
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l->textcolor = _getctlimage("black");
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l->bordercolor = _getctlimage("black");
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l->font = _getctlfont("font");
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l->border = 0;
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l->ctl = labelctl;
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l->exit = labelfree;
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return (Control *)l;
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}
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