94 lines
2.1 KiB
C
94 lines
2.1 KiB
C
/*
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* This file is part of the UCB release of Plan 9. It is subject to the license
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* terms in the LICENSE file found in the top-level directory of this
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* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
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* part of the UCB release of Plan 9, including this file, may be copied,
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* modified, propagated, or distributed except according to the terms contained
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* in the LICENSE file.
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*/
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#include <u.h>
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#include <lib9.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 <frame.h>
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void
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frinit(Frame *f, Rectangle r, Font *ft, Image *b, Image *cols[NCOL])
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{
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f->font = ft;
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f->display = b->display;
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f->maxtab = 8*stringwidth(ft, "0");
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f->nbox = 0;
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f->nalloc = 0;
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f->nchars = 0;
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f->nlines = 0;
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f->p0 = 0;
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f->p1 = 0;
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f->box = 0;
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f->lastlinefull = 0;
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if(cols != 0)
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memmove(f->cols, cols, sizeof f->cols);
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frsetrects(f, r, b);
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if(f->tick==nil && f->cols[BACK]!=0)
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frinittick(f);
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}
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void
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frinittick(Frame *f)
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{
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Image *b;
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Font *ft;
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b = f->display->screenimage;
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ft = f->font;
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if(f->tick)
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freeimage(f->tick);
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f->tick = allocimage(f->display, Rect(0, 0, FRTICKW, ft->height), b->chan, 0, DWhite);
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if(f->tick == nil)
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return;
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if(f->tickback)
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freeimage(f->tickback);
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f->tickback = allocimage(f->display, f->tick->r, b->chan, 0, DWhite);
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if(f->tickback == 0){
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freeimage(f->tick);
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f->tick = 0;
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return;
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}
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/* background color */
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draw(f->tick, f->tick->r, f->cols[BACK], nil, ZP);
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/* vertical line */
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draw(f->tick, Rect(FRTICKW/2, 0, FRTICKW/2+1, ft->height), f->cols[TEXT], nil, ZP);
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/* box on each end */
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draw(f->tick, Rect(0, 0, FRTICKW, FRTICKW), f->cols[TEXT], nil, ZP);
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draw(f->tick, Rect(0, ft->height-FRTICKW, FRTICKW, ft->height), f->cols[TEXT], nil, ZP);
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}
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void
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frsetrects(Frame *f, Rectangle r, Image *b)
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{
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f->b = b;
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f->entire = r;
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f->r = r;
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f->r.max.y -= (r.max.y-r.min.y)%f->font->height;
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f->maxlines = (r.max.y-r.min.y)/f->font->height;
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}
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void
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frclear(Frame *f, int freeall)
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{
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if(f->nbox)
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_frdelbox(f, 0, f->nbox-1);
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if(f->box)
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free(f->box);
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if(freeall){
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freeimage(f->tick);
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freeimage(f->tickback);
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f->tick = 0;
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f->tickback = 0;
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}
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f->box = 0;
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f->ticked = 0;
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}
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