diff options
Diffstat (limited to 'src/display/sp-ctrlquadr.cpp')
| -rw-r--r-- | src/display/sp-ctrlquadr.cpp | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/src/display/sp-ctrlquadr.cpp b/src/display/sp-ctrlquadr.cpp new file mode 100644 index 000000000..e9488cdb5 --- /dev/null +++ b/src/display/sp-ctrlquadr.cpp @@ -0,0 +1,210 @@ +#define __INKSCAPE_CTRLQUADR_C__ + +/* + * Quadrilateral + * + * Authors: + * bulia byak + * + * Copyright (C) 2005 authors + * + * Released under GNU GPL + */ + +#include "display-forward.h" +#include "sp-canvas-util.h" +#include "sp-ctrlquadr.h" + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif +#include <livarot/Shape.h> +#include <livarot/Path.h> + +struct SPCtrlQuadr : public SPCanvasItem{ + guint32 rgba; + NR::Point p1, p2, p3, p4; + Shape* shp; +}; + +struct SPCtrlQuadrClass : public SPCanvasItemClass{}; + +static void sp_ctrlquadr_class_init (SPCtrlQuadrClass *klass); +static void sp_ctrlquadr_init (SPCtrlQuadr *ctrlquadr); +static void sp_ctrlquadr_destroy (GtkObject *object); + +static void sp_ctrlquadr_update (SPCanvasItem *item, NR::Matrix const &affine, unsigned int flags); +static void sp_ctrlquadr_render (SPCanvasItem *item, SPCanvasBuf *buf); + +static SPCanvasItemClass *parent_class; + +GtkType +sp_ctrlquadr_get_type (void) +{ + static GtkType type = 0; + + if (!type) { + GtkTypeInfo info = { + "SPCtrlQuadr", + sizeof (SPCtrlQuadr), + sizeof (SPCtrlQuadrClass), + (GtkClassInitFunc) sp_ctrlquadr_class_init, + (GtkObjectInitFunc) sp_ctrlquadr_init, + NULL, NULL, NULL + }; + type = gtk_type_unique (SP_TYPE_CANVAS_ITEM, &info); + } + return type; +} + +static void +sp_ctrlquadr_class_init (SPCtrlQuadrClass *klass) +{ + GtkObjectClass *object_class = (GtkObjectClass *) klass; + SPCanvasItemClass *item_class = (SPCanvasItemClass *) klass; + + parent_class = (SPCanvasItemClass*)gtk_type_class (SP_TYPE_CANVAS_ITEM); + + object_class->destroy = sp_ctrlquadr_destroy; + + item_class->update = sp_ctrlquadr_update; + item_class->render = sp_ctrlquadr_render; +} + +static void +sp_ctrlquadr_init (SPCtrlQuadr *ctrlquadr) +{ + ctrlquadr->rgba = 0x000000ff; + ctrlquadr->p1 = NR::Point(0, 0); + ctrlquadr->p2 = NR::Point(0, 0); + ctrlquadr->p3 = NR::Point(0, 0); + ctrlquadr->p4 = NR::Point(0, 0); + ctrlquadr->shp=NULL; +} + +static void +sp_ctrlquadr_destroy (GtkObject *object) +{ + g_return_if_fail (object != NULL); + g_return_if_fail (SP_IS_CTRLQUADR (object)); + + SPCtrlQuadr *ctrlquadr = SP_CTRLQUADR (object); + + if (ctrlquadr->shp) { + delete ctrlquadr->shp; + ctrlquadr->shp = NULL; + } + + if (GTK_OBJECT_CLASS (parent_class)->destroy) + (* GTK_OBJECT_CLASS (parent_class)->destroy) (object); +} + +static void +sp_ctrlquadr_render (SPCanvasItem *item, SPCanvasBuf *buf) +{ + SPCtrlQuadr *ctrlquadr = SP_CTRLQUADR (item); + + NRRectL area; + area.x0=buf->rect.x0; + area.x1=buf->rect.x1; + area.y0=buf->rect.y0; + area.y1=buf->rect.y1; + + if (ctrlquadr->shp) { + sp_canvas_prepare_buffer (buf); + nr_pixblock_render_ctrl_rgba (ctrlquadr->shp,ctrlquadr->rgba,area,(char*)buf->buf, buf->buf_rowstride); + } +} + +static void +sp_ctrlquadr_update (SPCanvasItem *item, NR::Matrix const &affine, unsigned int flags) +{ + NRRect dbox; + + SPCtrlQuadr *cl = SP_CTRLQUADR (item); + + sp_canvas_request_redraw (item->canvas, (int)item->x1, (int)item->y1, (int)item->x2, (int)item->y2); + + if (parent_class->update) + (* parent_class->update) (item, affine, flags); + + sp_canvas_item_reset_bounds (item); + + dbox.x0=dbox.x1=dbox.y0=dbox.y1=0; + if (cl->shp) { + delete cl->shp; + cl->shp = NULL; + } + Path* thePath = new Path; + thePath->MoveTo(cl->p1 * affine); + thePath->LineTo(cl->p2 * affine); + thePath->LineTo(cl->p3 * affine); + thePath->LineTo(cl->p4 * affine); + thePath->LineTo(cl->p1 * affine); + + thePath->Convert(1.0); + + if ( cl->shp == NULL ) cl->shp=new Shape; + thePath->Fill(cl->shp, 0); + + cl->shp->CalcBBox(); + if ( cl->shp->leftX < cl->shp->rightX ) { + if ( dbox.x0 >= dbox.x1 ) { + dbox.x0=cl->shp->leftX;dbox.x1=cl->shp->rightX; + dbox.y0=cl->shp->topY;dbox.y1=cl->shp->bottomY; + } else { + if ( cl->shp->leftX < dbox.x0 ) dbox.x0=cl->shp->leftX; + if ( cl->shp->rightX > dbox.x1 ) dbox.x1=cl->shp->rightX; + if ( cl->shp->topY < dbox.y0 ) dbox.y0=cl->shp->topY; + if ( cl->shp->bottomY > dbox.y1 ) dbox.y1=cl->shp->bottomY; + } + } + delete thePath; + + item->x1 = (int)dbox.x0; + item->y1 = (int)dbox.y0; + item->x2 = (int)dbox.x1; + item->y2 = (int)dbox.y1; + + sp_canvas_request_redraw (item->canvas, (int)item->x1, (int)item->y1, (int)item->x2, (int)item->y2); +} + +void +sp_ctrlquadr_set_rgba32 (SPCtrlQuadr *cl, guint32 rgba) +{ + g_return_if_fail (cl != NULL); + g_return_if_fail (SP_IS_CTRLQUADR (cl)); + + if (rgba != cl->rgba) { + SPCanvasItem *item; + cl->rgba = rgba; + item = SP_CANVAS_ITEM (cl); + sp_canvas_request_redraw (item->canvas, (int)item->x1, (int)item->y1, (int)item->x2, (int)item->y2); + } +} + +void +sp_ctrlquadr_set_coords (SPCtrlQuadr *cl, NR::Point p1, NR::Point p2, NR::Point p3, NR::Point p4) +{ + g_return_if_fail (cl != NULL); + g_return_if_fail (SP_IS_CTRLQUADR (cl)); + + if (p1 != cl->p1 || p2 != cl->p2 || p3 != cl->p3 || p4 != cl->p4) { + cl->p1 = p1; + cl->p2 = p2; + cl->p3 = p3; + cl->p4 = p4; + sp_canvas_item_request_update (SP_CANVAS_ITEM (cl)); + } +} + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : |