2 Copyright © 1995-2001, The AROS Development Team. All rights reserved.
8 #include <aros/libcall.h>
9 #include <aros/debug.h>
10 #include <proto/layers.h>
11 #include <proto/exec.h>
12 #include <proto/graphics.h>
13 #include <proto/utility.h>
14 #include <exec/memory.h>
15 #include <graphics/rastport.h>
16 #include <graphics/clip.h>
17 #include "layers_intern.h"
18 #include "basicfuncs.h"
21 /*****************************************************************************
25 AROS_LH5(LONG
, MoveSizeLayer
,
28 AROS_LHA(struct Layer
*, l
, A0
),
29 AROS_LHA(LONG
, dx
, D0
),
30 AROS_LHA(LONG
, dy
, D1
),
31 AROS_LHA(LONG
, dw
, D2
),
32 AROS_LHA(LONG
, dh
, D3
),
35 struct LayersBase
*, LayersBase
, 30, Layers
)
38 Moves and resizes the layer in one step. Collects damage lists
39 for those layers that become visible and are simple layers.
40 If the layer to be moved is becoming larger the additional
41 areas are added to a damagelist if it is a non-superbitmap
42 layer. Refresh is also triggered for this layer.
45 l - pointer to layer to be moved
46 dx - delta to add to current x position
47 dy - delta to add to current y position
48 dw - delta to add to current width
49 dw - delta to add to current height
52 result - TRUE everyting went alright
53 FALSE an error occurred (out of memory)
66 27-11-96 digulla automatically created from
67 layers_lib.fd and clib/layers_protos.h
69 *****************************************************************************/
72 AROS_LIBBASE_EXT_DECL(struct LayersBase
*,LayersBase
)
74 struct Layer
* first
, *_l
, *lparent
;
75 struct Region
* newshape
, * oldshape
, r
, rtmp
, cutnewshape
;
76 struct Region
*clipregion
, *olddamage
= NULL
;
77 struct Rectangle rectw
, recth
;
81 InitRegion(&cutnewshape
);
83 LockLayers(l
->LayerInfo
);
85 clipregion
= _InternalInstallClipRegion(l
, NULL
, 0, 0, LayersBase
);
87 /* There's a little problem with CopyClipRectsToClipRects(). It
88 may call the backfill hook for the whole DamageList region.
89 Layers should never do this. It should call backfill hook only
90 for *new* damage, a layer operation causes. But not for those
91 areas which were part of the damage already before the layer
92 operation. Otherwise those latter areas might end up being
93 backfilled multiple times -> flickering. As fixing CopyClipRects-
94 ToClipRects() seems kinda complicated, I use a little trick: Set
95 a flag which tells the layers backfillhook calling function, not do
96 that. Before executing the movesizelayer operation I backup the old
97 damage region, and after executing of movesizelayer operation is done
98 I can use it to find out what areas where added to the damageregion.
99 i'll clear that special layer flag, and call the backfill hook for the
100 new damage areas. (stegerg) */
102 if (IS_SIMPLEREFRESH(l
))
104 if ((olddamage
= CopyRegion(l
->DamageList
)))
106 _TranslateRect(&olddamage
->bounds
, l
->bounds
.MinX
, l
->bounds
.MinY
);
107 AndRegionRegion(l
->VisibleRegion
, olddamage
);
108 AndRegionRegion(l
->visibleshape
, olddamage
);
109 _TranslateRect(&olddamage
->bounds
, -l
->bounds
.MinX
, -l
->bounds
.MinY
);
111 IL(l
)->intflags
|= INTFLAG_AVOID_BACKFILL
;
116 * First Create the new region of the layer:
117 * adjust its size and position.
121 /* First create newshape with 0,0 origin, because l->shaperegion is in layer coords */
123 newshape
= NewRectRegion(0,
125 l
->bounds
.MaxX
- l
->bounds
.MinX
+ dw
,
126 l
->bounds
.MaxY
- l
->bounds
.MinY
+ dh
);
127 if (IL(l
)->shapehook
)
129 struct ShapeHookMsg msg
;
131 if ((dx
|| dy
) && (dw
|| dh
))
133 msg
.Action
= SHAPEHOOKACTION_MOVESIZELAYER
;
137 msg
.Action
= SHAPEHOOKACTION_MOVELAYER
;
141 msg
.Action
= SHAPEHOOKACTION_SIZELAYER
;
145 msg
.ActualShape
= l
->shaperegion
;
146 msg
.NewBounds
.MinX
= l
->bounds
.MinX
+ dx
;
147 msg
.NewBounds
.MinY
= l
->bounds
.MinY
+ dy
;
148 msg
.NewBounds
.MaxX
= l
->bounds
.MaxX
+ dx
+ dw
;
149 msg
.NewBounds
.MaxY
= l
->bounds
.MaxY
+ dy
+ dh
;
150 msg
.OldBounds
.MinX
= l
->bounds
.MinX
;
151 msg
.OldBounds
.MinY
= l
->bounds
.MinY
;
152 msg
.OldBounds
.MaxX
= l
->bounds
.MaxX
;
153 msg
.OldBounds
.MaxY
= l
->bounds
.MaxY
;
155 l
->shaperegion
= (struct Region
*)CallHookPkt(IL(l
)->shapehook
, l
, &msg
);
159 AndRegionRegion(l
->shaperegion
, newshape
);
161 /* Now make newshape relative to old(!!) layer screen coords */
162 _TranslateRect(&newshape
->bounds
, l
->bounds
.MinX
+dx
, l
->bounds
.MinY
+dy
);
164 /* rectw and recth are now only needed for backfilling if layer got bigger -> see end of func */
168 rectw
.MinX
= dx
+l
->bounds
.MaxX
+1;
169 rectw
.MinY
= dy
+l
->bounds
.MinY
;
170 rectw
.MaxX
= rectw
.MinX
+ dw
- 1;
171 rectw
.MaxY
= dy
+l
->bounds
.MaxY
+dh
;
176 recth
.MinX
= dx
+l
->bounds
.MinX
;
177 recth
.MinY
= dy
+l
->bounds
.MaxY
+ 1;
178 recth
.MaxX
= dx
+l
->bounds
.MaxX
+dw
;
179 recth
.MaxY
= recth
.MinY
+ dh
- 1;
182 SetRegion(newshape
, &cutnewshape
);
183 AndRegionRegion(l
->parent
->visibleshape
, &cutnewshape
);
185 first
= GetFirstFamilyMember(l
);
187 * Must make a copy of the VisibleRegion of the first visible layer here
195 SetRegion(_l
->VisibleRegion
, &r
);
204 //kprintf("%s called for layer %p, first = %p!\n",__FUNCTION__,l,first);
207 * First back up parts of layers that are behind the layer
208 * family. Only need to do this if layer is moving or
209 * getting bigger in size. Only need to visit those layers
210 * that overlap with the new shape of the layer.
218 kprintf("\t\t%s: Backing up parts of layers that are behind the layer!\n",
223 if (IS_VISIBLE(_l
) && DO_OVERLAP(&cutnewshape
.bounds
, &_l
->shape
->bounds
))
224 _BackupPartsOfLayer(_l
, &cutnewshape
, 0, FALSE
, LayersBase
);
226 ClearRegionRegion(&cutnewshape
, _l
->VisibleRegion
);
230 if (IS_VISIBLE(_l
) || (NULL
== lparent
->parent
))
233 lparent
= lparent
->parent
;
238 SetRegion(&cutnewshape
, l
->visibleshape
);
239 ClearRegion(&cutnewshape
);
242 * Now I need to move the layer and all its familiy to the new
252 struct ClipRect
* cr
;
255 kprintf("\t\t%s: BACKING up parts of THE LAYER TO BE MOVED!\n",
259 if (1/* IS_VISIBLE(_l) */)
261 ClearRegion(_l
->VisibleRegion
);
262 _BackupPartsOfLayer(_l
, _l
->shape
, dx
, TRUE
, LayersBase
);
265 * Effectively move the layer...
267 _TranslateRect(&_l
->bounds
, dx
, dy
);
271 * ...and also its cliprects.
276 _TranslateRect(&cr
->bounds
, dx
, dy
);
283 _TranslateRect(&cr
->bounds
, dx
, dy
);
289 _TranslateRect(&_l
->shape
->bounds
, dx
, dy
);
292 * Also calculate the visible shape!
294 SetRegion(_l
->shape
, _l
->visibleshape
);
295 AndRegionRegion(_l
->parent
->visibleshape
, _l
->visibleshape
);
304 l
->bounds
.MaxX
+= dw
;
305 l
->bounds
.MaxY
+= dh
;
311 * Now make them visible again.
320 kprintf("\t\t%s: SHOWING parts of THE LAYER TO BE MOVED (children)!\n",
323 ClearRegion(_l
->VisibleRegion
);
324 _ShowPartsOfLayer(_l
, &r
, LayersBase
);
329 ClearRegionRegion(_l
->visibleshape
, &r
);
339 * Now make those parts of the layers after l up to and including
340 * its parent visible.
342 SetRegion(l
->VisibleRegion
, &r
);
343 ClearRegionRegion(l
->visibleshape
, &r
);
350 kprintf("\t\t%s: SHOWING parts of the layers behind the layer to be moved!\n",
353 if (IS_VISIBLE(_l
) &&
354 ( DO_OVERLAP(&l
->visibleshape
->bounds
, &_l
->shape
->bounds
) ||
355 DO_OVERLAP( &oldshape
->bounds
, &_l
->shape
->bounds
) ))
357 ClearRegion(_l
->VisibleRegion
);
358 _ShowPartsOfLayer(_l
, &r
, LayersBase
);
361 SetRegion(&r
, _l
->VisibleRegion
);
363 if (IS_VISIBLE(_l
) || IS_ROOTLAYER(_l
))
364 AndRegionRegion(_l
->VisibleRegion
, oldshape
);
367 if (IS_ROOTLAYER(_l
))
368 kprintf("root reached! %p\n",_l
);
373 if (IS_VISIBLE(_l
) || (NULL
== lparent
->parent
))
376 lparent
= lparent
->parent
;
380 ClearRegionRegion(_l
->visibleshape
, &r
);
388 * Now I need to clear the old layer at its previous place..
389 * But I may only clear those parts where no layer has become
390 * visible in the meantime.
392 if (!IS_EMPTYREGION(oldshape
))
394 if (lparent
&& IS_ROOTLAYER(lparent
))
395 _BackFillRegion(l
->parent
, oldshape
, TRUE
, LayersBase
);
398 DisposeRegion(oldshape
);
401 * If the size of the layer became larger clear the
402 * new area where it is visible.
404 if ((dw
> 0 || dh
> 0) && !IS_SUPERREFRESH(l
))
408 OrRectRegion(&r
, &rectw
);
411 OrRectRegion(&r
, &recth
);
413 _BackFillRegion(l
, &r
, TRUE
, LayersBase
);
420 struct Region
*newdamage
= CopyRegion(l
->DamageList
);
422 IL(l
)->intflags
&= ~INTFLAG_AVOID_BACKFILL
;
425 ClearRegionRegion(olddamage
, newdamage
);
426 _TranslateRect(&newdamage
->bounds
, l
->bounds
.MinX
, l
->bounds
.MinY
);
427 _BackFillRegion(l
, newdamage
, FALSE
, LayersBase
);
429 DisposeRegion(newdamage
);
431 DisposeRegion(olddamage
);
435 _InternalInstallClipRegion(l
, clipregion
, 0, 0, LayersBase
);
437 UnlockLayers(l
->LayerInfo
);
442 } /* MoveSizeLayer */