// swfdraw.c
-void swf_DrawerInit(SWFSHAPEDRAWER*draw, TAG*tag)
+
+typedef struct _SWFSHAPEDRAWER
+{
+ SHAPE*shape;
+ TAG*tag;
+ int tagfree;
+ SCOORD firstx;
+ SCOORD firsty;
+ SCOORD lastx;
+ SCOORD lasty;
+ SRECT bbox;
+ char isfinished;
+} SWFSHAPEDRAWER;
+
+static void swf_ShapeDrawerSetLineStyle(drawer_t*draw, void*style);
+static void swf_ShapeDrawerSetFillStyle(drawer_t*draw, void*style);
+static void swf_ShapeDrawerMoveTo(drawer_t*draw, FPOINT * to);
+static void swf_ShapeDrawerLineTo(drawer_t*draw, FPOINT * to);
+static void swf_ShapeDrawerSplineTo(drawer_t*draw, FPOINT * c1, FPOINT* to);
+static void swf_ShapeDrawerFinish(drawer_t*draw);
+static void swf_ShapeDrawerClear(drawer_t*draw);
+
+static void swf_ShapeDrawerInit(drawer_t*draw, TAG*tag, int fillstylebits, int linestylebits)
{
- draw->tagfree = 0;
+ SWFSHAPEDRAWER*sdraw = (SWFSHAPEDRAWER*)rfx_calloc(sizeof(SWFSHAPEDRAWER));
+ draw->internal = sdraw;
+
+ draw->setLineStyle = swf_ShapeDrawerSetLineStyle;
+ draw->setFillStyle = swf_ShapeDrawerSetFillStyle;
+ draw->moveTo = swf_ShapeDrawerMoveTo;
+ draw->lineTo = swf_ShapeDrawerLineTo;
+ draw->splineTo = swf_ShapeDrawerSplineTo;
+ draw->finish = swf_ShapeDrawerFinish;
+ draw->dealloc = swf_ShapeDrawerClear;
+
+ sdraw->tagfree = 0;
if(tag == 0) {
tag = swf_InsertTag(0, ST_DEFINESHAPE);
- draw->tagfree = 1;
+ sdraw->tagfree = 1;
}
- draw->tag = tag;
- swf_ShapeNew(&draw->shape);
- draw->pos = to;
-
- swf_SetU8(draw->tag,0);
- draw->shape->bits.fill = 1;
- draw->shape->bits.line = 0;
- swf_ShapeSetStyle(draw->tag,draw->shape,0,1,0);
+ sdraw->tag = tag;
+ swf_ShapeNew(&sdraw->shape);
+ draw->pos.x = 0;
+ draw->pos.y = 0;
+
+ swf_SetU8(sdraw->tag,0);
+ sdraw->shape->bits.fill = fillstylebits;
+ sdraw->shape->bits.line = linestylebits;
+
+ sdraw->bbox.xmin = sdraw->bbox.ymin = SCOORD_MAX;
+ sdraw->bbox.xmax = sdraw->bbox.ymax = SCOORD_MIN;
+
+ sdraw->isfinished = 0;
+
+ swf_ShapeSetStyle(sdraw->tag,sdraw->shape,linestylebits?1:0,fillstylebits?1:0,0/*?*/);
+}
+
+void swf_Shape10DrawerInit(drawer_t*draw, TAG*tag)
+{
+ swf_ShapeDrawerInit(draw, tag, 0, 1);
+}
+
+void swf_Shape01DrawerInit(drawer_t*draw, TAG*tag)
+{
+ swf_ShapeDrawerInit(draw, tag, 1, 0);
+}
+
+void swf_Shape11DrawerInit(drawer_t*draw, TAG*tag)
+{
+ swf_ShapeDrawerInit(draw, tag, 1, 1);
+}
+
+static void swf_ShapeDrawerSetLineStyle(drawer_t*draw, void*style)
+{
+ SWFSHAPEDRAWER*sdraw = (SWFSHAPEDRAWER*)draw->internal;
}
-void swf_DrawerMoveTo(SWFSHAPEDRAWER*draw, FPOINT * to)
+static void swf_ShapeDrawerSetFillStyle(drawer_t*draw, void*style)
{
- swf_ShapeSetMove(draw->tag,draw->shape,(int)(to->x*20), (int)(to->y*20));
- draw->pos = to;
+ SWFSHAPEDRAWER*sdraw = (SWFSHAPEDRAWER*)draw->internal;
}
-void swf_DrawerLineTo(SWFSHAPEDRAWER*draw, FPOINT * to)
+static void fixEndPoint(drawer_t*draw)
{
- swf_ShapeSetMove(draw->tag,draw->shape,(int)(to->x*20), (int)(to->y*20));
- draw->pos = to;
+ SWFSHAPEDRAWER*sdraw = (SWFSHAPEDRAWER*)draw->internal;
+ if( sdraw->firstx != sdraw->lastx
+ || sdraw->firsty != sdraw->lasty) {
+ /* fix non-closing shapes */
+ FPOINT to;
+ to.x = sdraw->firstx/20.0;
+ to.y = sdraw->firsty/20.0;
+ if(sdraw->shape->bits.fill) // do this only if the shape is filled
+ draw->lineTo(draw, &to);
+ }
+}
+static void swf_ShapeDrawerMoveTo(drawer_t*draw, FPOINT * to)
+{
+ SWFSHAPEDRAWER*sdraw = (SWFSHAPEDRAWER*)draw->internal;
+ int x = to->x*20+0.001;
+ int y = to->y*20+0.001;
+
+ /* we need to write moveto always- it
+ might be that it signals the end of a polygon, otherwise
+ we would end up connecting two polygons which should
+ be seperate
+ TODO: check if the last operation was a moveTo- if
+ yes we *can* skip it.
+ */
+
+ //if(sdraw->lastx != x || sdraw->lasty != y) {
+ fixEndPoint(draw);
+ swf_ShapeSetMove(sdraw->tag,sdraw->shape,x,y);
+ sdraw->firstx = sdraw->lastx = x;
+ sdraw->firsty = sdraw->lasty = y;
+ draw->pos = *to;
+ //}
}
-void swf_DrawerSplineTo(SWFSHAPEDRAWER*draw, FPOINT * c1, FPOINT* to)
+static void swf_ShapeDrawerLineTo(drawer_t*draw, FPOINT * to)
{
- swf_ShapeSetSpline(draw->tag,draw->shape,
- (int)(c1->x*20), (int)(c1->y*20),
- (int)(to->x*20), (int)(to->y*20),
- );
- draw->pos = to;
+ SWFSHAPEDRAWER*sdraw = (SWFSHAPEDRAWER*)draw->internal;
+ int x = to->x*20+0.001;
+ int y = to->y*20+0.001;
+ if(sdraw->lastx < sdraw->bbox.xmin) sdraw->bbox.xmin = sdraw->lastx;
+ if(sdraw->lasty < sdraw->bbox.ymin) sdraw->bbox.ymin = sdraw->lasty;
+ if(sdraw->lastx > sdraw->bbox.xmax) sdraw->bbox.xmax = sdraw->lastx;
+ if(sdraw->lasty > sdraw->bbox.ymax) sdraw->bbox.ymax = sdraw->lasty;
+ if(x < sdraw->bbox.xmin) sdraw->bbox.xmin = x;
+ if(y < sdraw->bbox.ymin) sdraw->bbox.ymin = y;
+ if(x > sdraw->bbox.xmax) sdraw->bbox.xmax = x;
+ if(y > sdraw->bbox.ymax) sdraw->bbox.ymax = y;
+ swf_ShapeSetLine(sdraw->tag,sdraw->shape,x-sdraw->lastx,y-sdraw->lasty);
+ sdraw->lastx = x;
+ sdraw->lasty = y;
+ draw->pos = *to;
}
-void swf_DrawerCubicTo(SWFSHAPEDRAWER*draw, FPOINT* c1, FPOINT* c2, FPOINT* to)
+static void swf_ShapeDrawerSplineTo(drawer_t*draw, FPOINT * c1, FPOINT* to)
{
- draw->pos = to;
+ SWFSHAPEDRAWER*sdraw = (SWFSHAPEDRAWER*)draw->internal;
+ int tx = c1->x*20+0.001;
+ int ty = c1->y*20+0.001;
+ int x = to->x*20+0.001;
+ int y = to->y*20+0.001;
+ if(sdraw->lastx < sdraw->bbox.xmin) sdraw->bbox.xmin = sdraw->lastx;
+ if(sdraw->lasty < sdraw->bbox.ymin) sdraw->bbox.ymin = sdraw->lasty;
+ if(sdraw->lastx > sdraw->bbox.xmax) sdraw->bbox.xmax = sdraw->lastx;
+ if(sdraw->lasty > sdraw->bbox.ymax) sdraw->bbox.ymax = sdraw->lasty;
+ if(x < sdraw->bbox.xmin) sdraw->bbox.xmin = x;
+ if(y < sdraw->bbox.ymin) sdraw->bbox.ymin = y;
+ if(x > sdraw->bbox.xmax) sdraw->bbox.xmax = x;
+ if(y > sdraw->bbox.ymax) sdraw->bbox.ymax = y;
+ if(tx < sdraw->bbox.xmin) sdraw->bbox.xmin = tx;
+ if(ty < sdraw->bbox.ymin) sdraw->bbox.ymin = ty;
+ if(tx > sdraw->bbox.xmax) sdraw->bbox.xmax = tx;
+ if(ty > sdraw->bbox.ymax) sdraw->bbox.ymax = ty;
+ swf_ShapeSetCurve(sdraw->tag,sdraw->shape, tx-sdraw->lastx,ty-sdraw->lasty, x-tx,y-ty);
+ sdraw->lastx = x;
+ sdraw->lasty = y;
+ draw->pos = *to;
}
-void swf_DrawerConicTo(SWFSHAPEDRAWER*draw, FPOINT* c, FPOINT* to)
+static void swf_ShapeDrawerFinish(drawer_t*draw)
{
- FPOINT* pos = draw->pos;
- FPOINT c1,c2;
- c1.x = (pos->x + 2 * c->x) / 3;
- c1.y = (pos->y + 2 * c->y) / 3;
- c2.x = (2 * c->x + to->x) / 3;
- c2.y = (2 * c->y + to->y) / 3;
- swf_DrawerCubicTo(draw, &c1,&c2,to);
- draw->pos = to;
- return 0;
+ SWFSHAPEDRAWER*sdraw = (SWFSHAPEDRAWER*)draw->internal;
+ if(sdraw->isfinished)
+ return;
+
+ fixEndPoint(draw);
+
+ if(sdraw->bbox.xmin == SCOORD_MAX) {
+ /* no points at all -> empty bounding box */
+ sdraw->bbox.xmin = sdraw->bbox.ymin =
+ sdraw->bbox.xmax = sdraw->bbox.ymax = 0;
+ }
+ sdraw->isfinished = 1;
+ swf_ShapeSetEnd(sdraw->tag);
}
-void swf_DrawerFinish(SWFSHAPEDRAWER*draw)
+
+static void swf_ShapeDrawerClear(drawer_t*draw)
{
- swf_ShapeSetEnd(draw->tag);
+ SWFSHAPEDRAWER*sdraw = (SWFSHAPEDRAWER*)draw->internal;
+ if(sdraw->tagfree) {
+ swf_DeleteTag(sdraw->tag);
+ sdraw->tag = 0;
+ }
+ swf_ShapeFree(sdraw->shape);
+ sdraw->shape = 0;
+
+ rfx_free(draw->internal);
+ draw->internal = 0;
}
-void swf_Drawer2Shape(SWFSHAPEDRAWER*draw, SHAPE*shape)
+
+SRECT swf_ShapeDrawerGetBBox(drawer_t*draw)
{
- memset(shape, 0, sizeof(SHAPE));
- shape->bitlen = (draw->tag->len-1)*8;
- shape->data = (U8*)malloc(draw->tag->len-1);
- memcpy(shape->data, &draw->tag->data[1], draw->tag->len-1);
+ SWFSHAPEDRAWER*sdraw = (SWFSHAPEDRAWER*)draw->internal;
+ return sdraw->bbox;
}
-void swf_DrawerFree(SWFSHAPEDRAWER*draw)
+
+SHAPE* swf_ShapeDrawerToShape(drawer_t*draw)
{
- if(draw->tagfree) {
- swf_DeleteTag(tag);
- draw->tag = 0;
+ SWFSHAPEDRAWER*sdraw = (SWFSHAPEDRAWER*)draw->internal;
+ SHAPE* shape = (SHAPE*)rfx_alloc(sizeof(SHAPE));
+ if(!sdraw->isfinished) {
+ fprintf(stderr, "Warning: you should Finish() your drawer before calling DrawerToShape");
+ swf_ShapeDrawerFinish(draw);
}
- swf_ShapeFree(draw->s);
- draw->s = 0;
+ memcpy(shape, sdraw->shape, sizeof(SHAPE));
+ shape->bitlen = (sdraw->tag->len-1)*8;
+ shape->data = (U8*)rfx_alloc(sdraw->tag->len-1);
+ memcpy(shape->data, &sdraw->tag->data[1], sdraw->tag->len-1);
+ return shape;
}
git.asbjorn.biz / swftools.git / blobdiff