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-rw-r--r--src/libdraw/ml-lorigin.c107
1 files changed, 0 insertions, 107 deletions
diff --git a/src/libdraw/ml-lorigin.c b/src/libdraw/ml-lorigin.c
deleted file mode 100644
index 0926ee8d..00000000
--- a/src/libdraw/ml-lorigin.c
+++ /dev/null
@@ -1,107 +0,0 @@
-#include <u.h>
-#include <libc.h>
-#include <draw.h>
-#include <memdraw.h>
-#include <memlayer.h>
-
-/*
- * Place i so i->r.min = log, i->layer->screenr.min == scr.
-*/
-int
-memlorigin(Memimage *i, Point log, Point scr)
-{
- Memlayer *l;
- Memscreen *s;
- Memimage *t, *shad, *nsave;
- Rectangle x, newr, oldr;
- Point delta;
- int overlap, eqlog, eqscr, wasclear;
-
- l = i->layer;
- s = l->screen;
- oldr = l->screenr;
- newr = Rect(scr.x, scr.y, scr.x+Dx(oldr), scr.y+Dy(oldr));
- eqscr = eqpt(scr, oldr.min);
- eqlog = eqpt(log, i->r.min);
- if(eqscr && eqlog)
- return 0;
- nsave = nil;
- if(eqlog==0 && l->save!=nil){
- nsave = allocmemimage(Rect(log.x, log.y, log.x+Dx(oldr), log.y+Dy(oldr)), i->chan);
- if(nsave == nil)
- return -1;
- }
-
- /*
- * Bring it to front and move logical coordinate system.
- */
- memltofront(i);
- wasclear = l->clear;
- if(nsave){
- if(!wasclear)
- memimagedraw(nsave, nsave->r, l->save, l->save->r.min, nil, Pt(0,0), S);
- freememimage(l->save);
- l->save = nsave;
- }
- delta = subpt(log, i->r.min);
- i->r = rectaddpt(i->r, delta);
- i->clipr = rectaddpt(i->clipr, delta);
- l->delta = subpt(l->screenr.min, i->r.min);
- if(eqscr)
- return 0;
-
- /*
- * To clean up old position, make a shadow window there, don't paint it,
- * push it behind this one, and (later) delete it. Because the refresh function
- * for this fake window is a no-op, this will cause no graphics action except
- * to restore the background and expose the windows previously hidden.
- */
- shad = memlalloc(s, oldr, memlnorefresh, nil, DNofill);
- if(shad == nil)
- return -1;
- s->frontmost = i;
- if(s->rearmost == i)
- s->rearmost = shad;
- else
- l->rear->layer->front = shad;
- shad->layer->front = i;
- shad->layer->rear = l->rear;
- l->rear = shad;
- l->front = nil;
- shad->layer->clear = 0;
-
- /*
- * Shadow is now holding down the fort at the old position.
- * Move the window and hide things obscured by new position.
- */
- for(t=l->rear->layer->rear; t!=nil; t=t->layer->rear){
- x = newr;
- overlap = rectclip(&x, t->layer->screenr);
- if(overlap){
- memlhide(t, x);
- t->layer->clear = 0;
- }
- }
- l->screenr = newr;
- l->delta = subpt(scr, i->r.min);
- l->clear = rectinrect(newr, l->screen->image->clipr);
-
- /*
- * Everything's covered. Copy to new position and delete shadow window.
- */
- if(wasclear)
- memdraw(s->image, newr, s->image, oldr.min, nil, Pt(0,0), S);
- else
- memlexpose(i, newr);
- memldelete(shad);
-
- return 1;
-}
-
-void
-memlnorefresh(Memimage *l, Rectangle r, void *v)
-{
- USED(l);
- USED(r.min.x);
- USED(v);
-}