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index 17c88001795514f6a59c83afe495b031b3c44768..aa4b40e175568999ddb07b52a01162792a967752 100644 (file)
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
+#include "color.h"
#include "sp-canvas-util.h"
+#include "inkscape-cairo.h"
#include "canvas-bpath.h"
#include "display/display-forward.h"
#include "display/curve.h"
-#include <livarot/Shape.h>
-#include <livarot/Path.h>
-#include <livarot/int-line.h>
-#include <livarot/BitLigne.h>
+#include "display/inkscape-cairo.h"
#include <libnr/nr-pixops.h>
+#include "helper/geom.h"
+
+/*
+ * FIXME: The following #includes and some other content in this file (see below) should actually
+ * be in a separate file called display/canvas-text.cpp. It temporarily had to be moved here
+ * because of linker errors.
+ */
+
+/**
+#include "display-forward.h"
+#include "sp-canvas-util.h"
+#include "canvas-text.h"
+#include "display/inkscape-cairo.h"
+**/
+#include <sstream>
+#include <string.h>
+#include <desktop.h>
+
+/**
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+#include <color.h>
+
+#include <libnr/nr-matrix-fns.h>
+#include <libnr/nr-pixops.h>
+**/
void nr_pixblock_render_bpath_rgba (Shape* theS,uint32_t color,NRRectL &area,char* destBuf,int stride);
static void sp_canvas_bpath_init (SPCanvasBPath *path);
static void sp_canvas_bpath_destroy (GtkObject *object);
-static void sp_canvas_bpath_update (SPCanvasItem *item, NR::Matrix const &affine, unsigned int flags);
+static void sp_canvas_bpath_update (SPCanvasItem *item, Geom::Matrix const &affine, unsigned int flags);
static void sp_canvas_bpath_render (SPCanvasItem *item, SPCanvasBuf *buf);
-static double sp_canvas_bpath_point (SPCanvasItem *item, NR::Point p, SPCanvasItem **actual_item);
+static double sp_canvas_bpath_point (SPCanvasItem *item, Geom::Point p, SPCanvasItem **actual_item);
static SPCanvasItemClass *parent_class;
{
static GtkType type = 0;
if (!type) {
- GtkTypeInfo info = {
- "SPCanvasBPath",
- sizeof (SPCanvasBPath),
- sizeof (SPCanvasBPathClass),
- (GtkClassInitFunc) sp_canvas_bpath_class_init,
- (GtkObjectInitFunc) sp_canvas_bpath_init,
- NULL, NULL, NULL
- };
- type = gtk_type_unique (SP_TYPE_CANVAS_ITEM, &info);
+ GtkTypeInfo info = {
+ (gchar *)"SPCanvasBPath",
+ sizeof (SPCanvasBPath),
+ sizeof (SPCanvasBPathClass),
+ (GtkClassInitFunc) sp_canvas_bpath_class_init,
+ (GtkObjectInitFunc) sp_canvas_bpath_init,
+ NULL, NULL, NULL
+ };
+ type = gtk_type_unique (SP_TYPE_CANVAS_ITEM, &info);
}
return type;
}
static void
sp_canvas_bpath_init (SPCanvasBPath * bpath)
{
- bpath->fill_rgba = 0x000000ff;
+ bpath->fill_rgba = 0x00000000;
bpath->fill_rule = SP_WIND_RULE_EVENODD;
bpath->stroke_rgba = 0x00000000;
bpath->stroke_linejoin = SP_STROKE_LINEJOIN_MITER;
bpath->stroke_linecap = SP_STROKE_LINECAP_BUTT;
bpath->stroke_miterlimit = 11.0;
-
- bpath->fill_shp=NULL;
- bpath->stroke_shp=NULL;
}
static void
sp_canvas_bpath_destroy (GtkObject *object)
{
SPCanvasBPath *cbp = SP_CANVAS_BPATH (object);
- if (cbp->fill_shp) {
- delete cbp->fill_shp;
- cbp->fill_shp = NULL;
- }
- if (cbp->stroke_shp) {
- delete cbp->stroke_shp;
- cbp->stroke_shp = NULL;
- }
if (cbp->curve) {
- cbp->curve = sp_curve_unref (cbp->curve);
+ cbp->curve = cbp->curve->unref();
}
if (GTK_OBJECT_CLASS (parent_class)->destroy)
- (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
+ (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
static void
-sp_canvas_bpath_update (SPCanvasItem *item, NR::Matrix const &affine, unsigned int flags)
+sp_canvas_bpath_update (SPCanvasItem *item, Geom::Matrix const &affine, unsigned int flags)
{
SPCanvasBPath *cbp = SP_CANVAS_BPATH (item);
sp_canvas_request_redraw (item->canvas, (int)item->x1, (int)item->y1, (int)item->x2, (int)item->y2);
if (((SPCanvasItemClass *) parent_class)->update)
- ((SPCanvasItemClass *) parent_class)->update (item, affine, flags);
+ ((SPCanvasItemClass *) parent_class)->update (item, affine, flags);
sp_canvas_item_reset_bounds (item);
- if (cbp->fill_shp) {
- delete cbp->fill_shp;
- cbp->fill_shp = NULL;
- }
-
- if (cbp->stroke_shp) {
- delete cbp->stroke_shp;
- cbp->stroke_shp = NULL;
- }
if (!cbp->curve) return;
- NRRect dbox;
-
- dbox.x0 = dbox.y0 = 0.0;
- dbox.x1 = dbox.y1 = -1.0;
-
- if ((cbp->fill_rgba & 0xff) || (cbp->stroke_rgba & 0xff)) {
- Path* thePath=new Path;
- thePath->LoadArtBPath(SP_CURVE_BPATH(cbp->curve), affine, true);
- thePath->Convert(0.25);
- if ((cbp->fill_rgba & 0xff) && (cbp->curve->end > 2)) {
- Shape* theShape=new Shape;
- thePath->Fill(theShape,0);
- if ( cbp->fill_shp == NULL ) cbp->fill_shp=new Shape;
- if ( cbp->fill_rule == SP_WIND_RULE_EVENODD ) {
- cbp->fill_shp->ConvertToShape(theShape,fill_oddEven);
- } else {
- cbp->fill_shp->ConvertToShape(theShape,fill_nonZero);
- }
- delete theShape;
- cbp->fill_shp->CalcBBox();
- if ( cbp->fill_shp->leftX < cbp->fill_shp->rightX ) {
- if ( dbox.x0 >= dbox.x1 ) {
- dbox.x0 = cbp->fill_shp->leftX; dbox.x1 = cbp->fill_shp->rightX;
- dbox.y0 = cbp->fill_shp->topY; dbox.y1 = cbp->fill_shp->bottomY;
- } else {
- if ( cbp->fill_shp->leftX < dbox.x0 ) dbox.x0=cbp->fill_shp->leftX;
- if ( cbp->fill_shp->rightX > dbox.x1 ) dbox.x1=cbp->fill_shp->rightX;
- if ( cbp->fill_shp->topY < dbox.y0 ) dbox.y0=cbp->fill_shp->topY;
- if ( cbp->fill_shp->bottomY > dbox.y1 ) dbox.y1=cbp->fill_shp->bottomY;
- }
- }
- }
- if ((cbp->stroke_rgba & 0xff) && (cbp->curve->end > 1)) {
- JoinType join=join_straight;
-// Shape* theShape=new Shape;
- ButtType butt=butt_straight;
- if ( cbp->stroke_shp == NULL ) cbp->stroke_shp=new Shape;
- if ( cbp->stroke_linecap == SP_STROKE_LINECAP_BUTT ) butt=butt_straight;
- if ( cbp->stroke_linecap == SP_STROKE_LINECAP_ROUND ) butt=butt_round;
- if ( cbp->stroke_linecap == SP_STROKE_LINECAP_SQUARE ) butt=butt_square;
- if ( cbp->stroke_linejoin == SP_STROKE_LINEJOIN_MITER ) join=join_pointy;
- if ( cbp->stroke_linejoin == SP_STROKE_LINEJOIN_ROUND ) join=join_round;
- if ( cbp->stroke_linejoin == SP_STROKE_LINEJOIN_BEVEL ) join=join_straight;
- thePath->Stroke(cbp->stroke_shp,false,0.5*cbp->stroke_width, join,butt,cbp->stroke_width*cbp->stroke_miterlimit );
- // thePath->Stroke(theShape,false,0.5*cbp->stroke_width, join,butt,cbp->stroke_width*cbp->stroke_miterlimit );
- // cbp->stroke_shp->ConvertToShape(theShape,fill_nonZero);
-
- cbp->stroke_shp->CalcBBox();
- if ( cbp->stroke_shp->leftX < cbp->stroke_shp->rightX ) {
- if ( dbox.x0 >= dbox.x1 ) {
- dbox.x0 = cbp->stroke_shp->leftX;dbox.x1 = cbp->stroke_shp->rightX;
- dbox.y0 = cbp->stroke_shp->topY;dbox.y1 = cbp->stroke_shp->bottomY;
- } else {
- if ( cbp->stroke_shp->leftX < dbox.x0 ) dbox.x0 = cbp->stroke_shp->leftX;
- if ( cbp->stroke_shp->rightX > dbox.x1 ) dbox.x1 = cbp->stroke_shp->rightX;
- if ( cbp->stroke_shp->topY < dbox.y0 ) dbox.y0 = cbp->stroke_shp->topY;
- if ( cbp->stroke_shp->bottomY > dbox.y1 ) dbox.y1 = cbp->stroke_shp->bottomY;
- }
- }
-// delete theShape;
- }
- delete thePath;
- }
+ cbp->affine = affine;
+ Geom::OptRect bbox = bounds_exact_transformed(cbp->curve->get_pathvector(), affine);
- item->x1 = (int)dbox.x0;
- item->y1 = (int)dbox.y0;
- item->x2 = (int)dbox.x1;
- item->y2 = (int)dbox.y1;
-
+ if (bbox) {
+ item->x1 = (int)bbox->min()[Geom::X] - 1;
+ item->y1 = (int)bbox->min()[Geom::Y] - 1;
+ item->x2 = (int)bbox->max()[Geom::X] + 1;
+ item->y2 = (int)bbox->max()[Geom::Y] + 1;
+ } else {
+ item->x1 = 0;
+ item->y1 = 0;
+ item->x2 = 0;
+ item->y2 = 0;
+ }
sp_canvas_request_redraw (item->canvas, (int)item->x1, (int)item->y1, (int)item->x2, (int)item->y2);
}
sp_canvas_prepare_buffer(buf);
- NRRectL area;
- area.x0=buf->rect.x0;
- area.x1=buf->rect.x1;
- area.y0=buf->rect.y0;
- area.y1=buf->rect.y1;
- if ( cbp->fill_shp ) {
- nr_pixblock_render_bpath_rgba (cbp->fill_shp,cbp->fill_rgba,area,(char*)buf->buf, buf->buf_rowstride);
- }
- if ( cbp->stroke_shp ) {
- nr_pixblock_render_bpath_rgba (cbp->stroke_shp,cbp->stroke_rgba,area,(char*)buf->buf, buf->buf_rowstride);
+ Geom::Rect area (Geom::Point(buf->rect.x0, buf->rect.y0), Geom::Point(buf->rect.x1, buf->rect.y1));
+
+ if ( !cbp->curve ||
+ ((cbp->stroke_rgba & 0xff) == 0 && (cbp->fill_rgba & 0xff) == 0 ) ||
+ cbp->curve->get_segment_count() < 1)
+ return;
+
+ if (!buf->ct)
+ return;
+
+ bool dofill = ((cbp->fill_rgba & 0xff) != 0);
+ bool dostroke = ((cbp->stroke_rgba & 0xff) != 0);
+
+ cairo_set_tolerance(buf->ct, 1.25); // low quality, but good enough for canvas items
+ cairo_new_path(buf->ct);
+
+ if (!dofill)
+ feed_pathvector_to_cairo (buf->ct, cbp->curve->get_pathvector(), cbp->affine, area, true, 1);
+ else
+ feed_pathvector_to_cairo (buf->ct, cbp->curve->get_pathvector(), cbp->affine, area, false, 1);
+
+ if (dofill) {
+ // RGB / BGR
+ cairo_set_source_rgba(buf->ct, SP_RGBA32_B_F(cbp->fill_rgba), SP_RGBA32_G_F(cbp->fill_rgba), SP_RGBA32_R_F(cbp->fill_rgba), SP_RGBA32_A_F(cbp->fill_rgba));
+ cairo_set_fill_rule(buf->ct, cbp->fill_rule == SP_WIND_RULE_EVENODD? CAIRO_FILL_RULE_EVEN_ODD
+ : CAIRO_FILL_RULE_WINDING);
+ if (dostroke)
+ cairo_fill_preserve(buf->ct);
+ else
+ cairo_fill(buf->ct);
}
+ if (dostroke) {
+ // RGB / BGR
+ cairo_set_source_rgba(buf->ct, SP_RGBA32_B_F(cbp->stroke_rgba), SP_RGBA32_G_F(cbp->stroke_rgba), SP_RGBA32_R_F(cbp->stroke_rgba), SP_RGBA32_A_F(cbp->stroke_rgba));
+ cairo_set_line_width(buf->ct, 1);
+ if (cbp->dashes[0] != 0 && cbp->dashes[1] != 0) {
+ cairo_set_dash (buf->ct, cbp->dashes, 2, 0);
+ }
+ cairo_stroke(buf->ct);
+ }
}
-#define BIGVAL 1e18
-
static double
-sp_canvas_bpath_point (SPCanvasItem *item, NR::Point p, SPCanvasItem **actual_item)
+sp_canvas_bpath_point (SPCanvasItem *item, Geom::Point p, SPCanvasItem **actual_item)
{
SPCanvasBPath *cbp = SP_CANVAS_BPATH (item);
- if (cbp->fill_shp && (cbp->fill_shp->PtWinding(p) > 0 )) {
- *actual_item = item;
- return 0.0;
- }
- if (cbp->stroke_shp ) {
- if (cbp->stroke_shp->PtWinding(p) > 0 ) {
- *actual_item = item;
- return 0.0;
- }
- return distance(cbp->stroke_shp, p);
- }
- if (cbp->fill_shp) {
- return distance(cbp->fill_shp, p);
+ if ( !cbp->curve ||
+ ((cbp->stroke_rgba & 0xff) == 0 && (cbp->fill_rgba & 0xff) == 0 ) ||
+ cbp->curve->get_segment_count() < 1)
+ return NR_HUGE;
+
+ double width = 0.5;
+ Geom::Rect viewbox = item->canvas->getViewbox();
+ viewbox.expandBy (width);
+ double dist = NR_HUGE;
+ pathv_matrix_point_bbox_wind_distance(cbp->curve->get_pathvector(), cbp->affine, p, NULL, NULL, &dist, 0.5, &viewbox);
+
+ if (dist <= 1.0) {
+ *actual_item = item;
}
- return BIGVAL;
+ return dist;
}
SPCanvasItem *
g_return_if_fail (SP_IS_CANVAS_BPATH (cbp));
if (cbp->curve) {
- cbp->curve = sp_curve_unref (cbp->curve);
+ cbp->curve = cbp->curve->unref();
}
if (curve) {
- cbp->curve = sp_curve_ref (curve);
+ cbp->curve = curve->ref();
}
sp_canvas_item_request_update (SP_CANVAS_ITEM (cbp));
}
void
-sp_canvas_bpath_set_stroke (SPCanvasBPath *cbp, guint32 rgba, gdouble width, SPStrokeJoinType join, SPStrokeCapType cap)
+sp_canvas_bpath_set_stroke (SPCanvasBPath *cbp, guint32 rgba, gdouble width, SPStrokeJoinType join, SPStrokeCapType cap, double dash, double gap)
{
g_return_if_fail (cbp != NULL);
g_return_if_fail (SP_IS_CANVAS_BPATH (cbp));
@@ -304,182 +282,254 @@ sp_canvas_bpath_set_stroke (SPCanvasBPath *cbp, guint32 rgba, gdouble width, SPS
cbp->stroke_width = MAX (width, 0.1);
cbp->stroke_linejoin = join;
cbp->stroke_linecap = cap;
+ cbp->dashes[0] = dash;
+ cbp->dashes[1] = gap;
sp_canvas_item_request_update (SP_CANVAS_ITEM (cbp));
}
-static void
-bpath_run_A8_OR (raster_info &dest,void *data,int st,float vst,int en,float ven)
+/*
+ * FIXME: The following code should actually be in a separate file called
+ * display/canvas-text.cpp. It temporarily had to be moved here because of linker errors.
+ */
+
+static void sp_canvastext_class_init (SPCanvasTextClass *klass);
+static void sp_canvastext_init (SPCanvasText *canvastext);
+static void sp_canvastext_destroy (GtkObject *object);
+
+static void sp_canvastext_update (SPCanvasItem *item, Geom::Matrix const &affine, unsigned int flags);
+static void sp_canvastext_render (SPCanvasItem *item, SPCanvasBuf *buf);
+
+static SPCanvasItemClass *parent_class_ct;
+
+GtkType
+sp_canvastext_get_type (void)
{
- union {
- uint8_t comp[4];
- uint32_t col;
- } tempCol;
- if ( st >= en ) return;
- tempCol.col=*(uint32_t*)data;
-
- unsigned int r, g, b, a;
- r = NR_RGBA32_R (tempCol.col);
- g = NR_RGBA32_G (tempCol.col);
- b = NR_RGBA32_B (tempCol.col);
- a = NR_RGBA32_A (tempCol.col);
- if (a == 0) return;
-
- vst*=a;
- ven*=a;
-
- if ( vst < 0 ) vst=0;
- if ( vst > 255 ) vst=255;
- if ( ven < 0 ) ven=0;
- if ( ven > 255 ) ven=255;
- float sv=vst;
- float dv=ven-vst;
- int len=en-st;
- uint8_t* d=(uint8_t*)dest.buffer;
-
- d+=3*(st-dest.startPix);
- if ( fabs(dv) < 0.001 ) {
- if ( sv > 249.999 ) {
- /* Simple copy */
- while (len > 0) {
- d[0] = NR_COMPOSEN11 (r, 255, d[0]);
- d[1] = NR_COMPOSEN11 (g, 255, d[1]);
- d[2] = NR_COMPOSEN11 (b, 255, d[2]);
- d += 3;
- len -= 1;
- }
- } else {
- unsigned int c0_24=(int)sv;
- c0_24&=0xFF;
- while (len > 0) {
- d[0] = NR_COMPOSEN11 (r, c0_24, d[0]);
- d[1] = NR_COMPOSEN11 (g, c0_24, d[1]);
- d[2] = NR_COMPOSEN11 (b, c0_24, d[2]);
- d += 3;
- len -= 1;
- }
- }
- } else {
- if ( en <= st+1 ) {
- sv=0.5*(vst+ven);
- unsigned int c0_24=(int)sv;
- c0_24&=0xFF;
- d[0] = NR_COMPOSEN11 (r, c0_24, d[0]);
- d[1] = NR_COMPOSEN11 (g, c0_24, d[1]);
- d[2] = NR_COMPOSEN11 (b, c0_24, d[2]);
- } else {
- dv/=len;
- sv+=0.5*dv; // correction trapezoidale
- sv*=65536;
- dv*=65536;
- int c0_24 = static_cast<int>(CLAMP(sv, 0, 16777216));
- int s0_24 = static_cast<int>(dv);
- while (len > 0) {
- unsigned int ca;
- /* Draw */
- ca = c0_24 >> 16;
- if ( ca > 255 ) ca=255;
- d[0] = NR_COMPOSEN11 (r, ca, d[0]);
- d[1] = NR_COMPOSEN11 (g, ca, d[1]);
- d[2] = NR_COMPOSEN11 (b, ca, d[2]);
- d += 3;
- c0_24 += s0_24;
- c0_24 = CLAMP (c0_24, 0, 16777216);
- len -= 1;
- }
- }
+ static GtkType type = 0;
+
+ if (!type) {
+ GtkTypeInfo info = {
+ (gchar *)"SPCanvasText",
+ sizeof (SPCanvasText),
+ sizeof (SPCanvasTextClass),
+ (GtkClassInitFunc) sp_canvastext_class_init,
+ (GtkObjectInitFunc) sp_canvastext_init,
+ NULL, NULL, NULL
+ };
+ type = gtk_type_unique (SP_TYPE_CANVAS_ITEM, &info);
}
+ return type;
}
-void nr_pixblock_render_bpath_rgba (Shape* theS,uint32_t color,NRRectL &area,char* destBuf,int stride)
+static void
+sp_canvastext_class_init (SPCanvasTextClass *klass)
{
+ GtkObjectClass *object_class = (GtkObjectClass *) klass;
+ SPCanvasItemClass *item_class = (SPCanvasItemClass *) klass;
- theS->CalcBBox();
- float l=theS->leftX,r=theS->rightX,t=theS->topY,b=theS->bottomY;
- int il,ir,it,ib;
- il=(int)floor(l);
- ir=(int)ceil(r);
- it=(int)floor(t);
- ib=(int)ceil(b);
-
- if ( il >= area.x1 || ir <= area.x0 || it >= area.y1 || ib <= area.y0 ) return;
- if ( il < area.x0 ) il=area.x0;
- if ( it < area.y0 ) it=area.y0;
- if ( ir > area.x1 ) ir=area.x1;
- if ( ib > area.y1 ) ib=area.y1;
-
-/* // version par FloatLigne
- int curPt;
- float curY;
- theS->BeginRaster(curY,curPt,1.0);
-
- FloatLigne* theI=new FloatLigne();
- IntLigne* theIL=new IntLigne();
-
- theS->Scan(curY,curPt,(float)(it),1.0);
-
- char* mdata=(char*)destBuf;
- uint32_t* ligStart=((uint32_t*)(mdata+(3*(il-area.x0)+stride*(it-area.y0))));
- for (int y=it;y<ib;y++) {
- theI->Reset();
- if ( y&0x00000003 ) {
- theS->Scan(curY,curPt,((float)(y+1)),theI,false,1.0);
- } else {
- theS->Scan(curY,curPt,((float)(y+1)),theI,true,1.0);
- }
- theI->Flatten();
- theIL->Copy(theI);
-
- raster_info dest;
- dest.startPix=il;
- dest.endPix=ir;
- dest.sth=il;
- dest.stv=y;
- dest.buffer=ligStart;
- theIL->Raster(dest,&color,bpath_run_A8_OR);
- ligStart=((uint32_t*)(((char*)ligStart)+stride));
+ parent_class_ct = (SPCanvasItemClass*)gtk_type_class (SP_TYPE_CANVAS_ITEM);
+
+ object_class->destroy = sp_canvastext_destroy;
+
+ item_class->update = sp_canvastext_update;
+ item_class->render = sp_canvastext_render;
+}
+
+static void
+sp_canvastext_init (SPCanvasText *canvastext)
+{
+ canvastext->rgba = 0x0000ff7f;
+ canvastext->s[Geom::X] = canvastext->s[Geom::Y] = 0.0;
+ canvastext->affine = Geom::identity();
+ canvastext->fontsize = 10.0;
+ canvastext->item = NULL;
+ canvastext->desktop = NULL;
+ canvastext->text = NULL;
+}
+
+static void
+sp_canvastext_destroy (GtkObject *object)
+{
+ g_return_if_fail (object != NULL);
+ g_return_if_fail (SP_IS_CANVASTEXT (object));
+
+ SPCanvasText *canvastext = SP_CANVASTEXT (object);
+
+ canvastext->item=NULL;
+
+ if (GTK_OBJECT_CLASS (parent_class_ct)->destroy)
+ (* GTK_OBJECT_CLASS (parent_class_ct)->destroy) (object);
+}
+
+// FIXME: remove this as soon as we know how to correctly determine the text extent
+static const double arbitrary_factor = 0.7;
+
+// these are set in sp_canvastext_update() and then re-used in sp_canvastext_render(), which is called afterwards
+static double anchor_offset_x = 0;
+static double anchor_offset_y = 0;
+
+static void
+sp_canvastext_render (SPCanvasItem *item, SPCanvasBuf *buf)
+{
+ SPCanvasText *cl = SP_CANVASTEXT (item);
+
+ if (!buf->ct)
+ return;
+
+ guint32 rgba = cl->rgba;
+ cairo_set_source_rgba(buf->ct, SP_RGBA32_B_F(rgba), SP_RGBA32_G_F(rgba), SP_RGBA32_R_F(rgba), SP_RGBA32_A_F(rgba));
+
+ Geom::Point s = cl->s * cl->affine;
+ double offsetx = s[Geom::X] - buf->rect.x0;
+ double offsety = s[Geom::Y] - buf->rect.y0;
+ offsetx -= anchor_offset_x;
+ offsety += anchor_offset_y;
+
+ cairo_move_to(buf->ct, offsetx, offsety);
+ cairo_set_font_size(buf->ct, cl->fontsize);
+ cairo_show_text(buf->ct, cl->text);
+ cairo_stroke(buf->ct);
+
+ cairo_new_path(buf->ct);
+}
+
+static void
+sp_canvastext_update (SPCanvasItem *item, Geom::Matrix const &affine, unsigned int flags)
+{
+ SPCanvasText *cl = SP_CANVASTEXT (item);
+
+ sp_canvas_request_redraw (item->canvas, (int)item->x1, (int)item->y1, (int)item->x2, (int)item->y2);
+
+ if (parent_class_ct->update)
+ (* parent_class_ct->update) (item, affine, flags);
+
+ sp_canvas_item_reset_bounds (item);
+
+ cl->affine = affine;
+
+ Geom::Point s = cl->s * affine;
+
+ // set up a temporary cairo_t to measure the text extents; it would be better to compute this in the render()
+ // method but update() seems to be called before so we don't have the information available when we need it
+ /**
+ cairo_t tmp_buf;
+ cairo_text_extents_t bbox;
+ cairo_text_extents(&tmp_buf, cl->text, &bbox);
+ **/
+ item->x1 = s[Geom::X] + 0;
+ item->y1 = s[Geom::Y] - cl->fontsize;
+ item->x2 = s[Geom::X] + cl->fontsize * strlen(cl->text);
+ item->y2 = s[Geom::Y] + cl->fontsize * 0.5; // for letters below the baseline
+
+ // adjust update region according to anchor shift
+ // FIXME: use the correct text extent
+ anchor_offset_x = arbitrary_factor * cl->fontsize * strlen(cl->text) * (cl->anchor_x + 1.0) / 2.0;
+ anchor_offset_y = cl->fontsize * (cl->anchor_y + 1.0) / 2.0;
+ item->x1 -= anchor_offset_x;
+ item->x2 -= anchor_offset_x;
+ item->y1 += anchor_offset_y;
+ item->y2 += anchor_offset_y;
+
+ sp_canvas_request_redraw (item->canvas, (int)item->x1, (int)item->y1, (int)item->x2, (int)item->y2);
+}
+
+SPCanvasItem *
+sp_canvastext_new(SPCanvasGroup *parent, SPDesktop *desktop, Geom::Point pos, gchar const *new_text)
+{
+ SPCanvasItem *item = sp_canvas_item_new(parent, SP_TYPE_CANVASTEXT, NULL);
+
+ SPCanvasText *ct = SP_CANVASTEXT(item);
+
+ ct->desktop = desktop;
+
+ ct->s = pos;
+ g_free(ct->text);
+ ct->text = g_strdup(new_text);
+
+ // TODO: anything else to do?
+
+ return item;
+}
+
+
+void
+sp_canvastext_set_rgba32 (SPCanvasText *ct, guint32 rgba)
+{
+ g_return_if_fail (ct != NULL);
+ g_return_if_fail (SP_IS_CANVASTEXT (ct));
+
+ if (rgba != ct->rgba) {
+ SPCanvasItem *item;
+ ct->rgba = rgba;
+ item = SP_CANVAS_ITEM (ct);
+ sp_canvas_request_redraw (item->canvas, (int)item->x1, (int)item->y1, (int)item->x2, (int)item->y2);
}
- theS->EndRaster();
- delete theI;
- delete theIL; */
-
- // version par BitLigne directe
- int curPt;
- float curY;
- theS->BeginQuickRaster(curY, curPt);
-
- BitLigne* theI[4];
- for (int i=0;i<4;i++) theI[i]=new BitLigne(il,ir);
- IntLigne* theIL=new IntLigne();
-
- theS->DirectQuickScan(curY,curPt,(float)(it),true,0.25);
-
- char* mdata=(char*)destBuf;
- uint32_t* ligStart=((uint32_t*)(mdata+(3*(il-area.x0)+stride*(it-area.y0))));
- for (int y=it;y<ib;y++) {
- for (int i = 0; i < 4; i++)
- theI[i]->Reset();
-
- for (int i = 0; i < 4; i++)
- theS->QuickScan(curY, curPt, ((float)(y+0.25*(i+1))),
- fill_oddEven, theI[i], 0.25);
-
- theIL->Copy(4,theI);
- // theI[0]->Affiche();
- // theIL->Affiche();
-
- raster_info dest;
- dest.startPix=il;
- dest.endPix=ir;
- dest.sth=il;
- dest.stv=y;
- dest.buffer=ligStart;
- theIL->Raster(dest,&color,bpath_run_A8_OR);
- ligStart=((uint32_t*)(((char*)ligStart)+stride));
+ sp_canvas_item_request_update (SP_CANVAS_ITEM (ct));
+}
+
+#define EPSILON 1e-6
+#define DIFFER(a,b) (fabs ((a) - (b)) > EPSILON)
+
+void
+sp_canvastext_set_coords (SPCanvasText *ct, gdouble x0, gdouble y0)
+{
+ sp_canvastext_set_coords(ct, Geom::Point(x0, y0));
+}
+
+void
+sp_canvastext_set_coords (SPCanvasText *ct, const Geom::Point start)
+{
+ Geom::Point pos = ct->desktop->doc2dt(start);
+
+ g_return_if_fail (ct != NULL);
+ g_return_if_fail (SP_IS_CANVASTEXT (ct));
+
+ if (DIFFER (pos[0], ct->s[Geom::X]) || DIFFER (pos[1], ct->s[Geom::Y])) {
+ ct->s[Geom::X] = pos[0];
+ ct->s[Geom::Y] = pos[1];
+ sp_canvas_item_request_update (SP_CANVAS_ITEM (ct));
}
- theS->EndQuickRaster();
- for (int i=0;i<4;i++) delete theI[i];
- delete theIL;
+ sp_canvas_item_request_update (SP_CANVAS_ITEM (ct));
+}
+
+void
+sp_canvastext_set_text (SPCanvasText *ct, gchar const * new_text)
+{
+ g_free (ct->text);
+ ct->text = g_strdup(new_text);
+ sp_canvas_item_request_update (SP_CANVAS_ITEM (ct));
+}
+
+void
+sp_canvastext_set_number_as_text (SPCanvasText *ct, int num)
+{
+ std::ostringstream number;
+ number << num;
+ sp_canvastext_set_text(ct, number.str().c_str());
+}
+
+void
+sp_canvastext_set_fontsize (SPCanvasText *ct, double size)
+{
+ ct->fontsize = size;
+}
+
+void
+sp_canvastext_set_anchor (SPCanvasText *ct, double anchor_x, double anchor_y)
+{
+ ct->anchor_x = anchor_x;
+ ct->anchor_y = anchor_y;
}
+
+/*
+ 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 :