int
connpointline_adjust_count(ConnPointLine *cpl,
int newcount, Point *where)
{
int oldcount,delta;
oldcount = cpl->num_connections;
if (newcount < 0) newcount = 0;
delta = newcount - oldcount;
if (delta != 0) {
ObjectChange *change;
/*g_message("going to adjust %d (to be %d)",delta,shouldbe);*/
if (delta > 0) {
change = connpointline_add_points(cpl, where, delta);
} else {
change = connpointline_remove_points(cpl, where, -delta);
}
if (change->free) change->free(change);
g_free(change); /* we don't really need this change object. */
}
return oldcount;
}
/*!
*/
void
DiaOutputDev::_fill (GfxState *state, bool winding)
{
GArray *points = g_array_new (FALSE, FALSE, sizeof(BezPoint));
DiaObject *obj = NULL;
GfxPath *path = state->getPath();
bool haveClose = true;
if (doPath (points, state, path, haveClose) && points->len > 2) {
if (path->getNumSubpaths() == 1 && haveClose)
obj = create_standard_beziergon (points->len, &g_array_index (points, BezPoint, 0));
else
obj = create_standard_path (points->len, &g_array_index (points, BezPoint, 0));
applyStyle (obj, true);
if (this->pattern) {
ObjectChange *change = dia_object_set_pattern (obj, this->pattern);
if (change) {
change->free (change);
g_free (change);
}
}
}
g_array_free (points, TRUE);
if (obj) {
// Useful for debugging but high performance penalty
// dia_object_set_meta (obj, "fill-rule", winding ? "winding" : "even-odd");
addObject (obj);
}
}
static ObjectChange *
flow_set_type_callback (DiaObject* obj, Point* clicked, gpointer data)
{
ObjectChange *change;
change = type_create_change((Flow *)obj, GPOINTER_TO_INT(data));
change->apply(change, obj);
return change;
}
static ObjectChange *
box_set_aspect_callback (DiaObject* obj, Point* clicked, gpointer data)
{
ObjectChange *change;
change = aspect_create_change((Box*)obj, (AspectType)data);
change->apply(change, obj);
return change;
}
ObjectChange *
connpointline_remove_points(ConnPointLine *cpl,
Point *clickedpoint, int count)
{
int pos;
ObjectChange *change;
pos = cpl_get_pointbefore(cpl,clickedpoint);
change = cpl_create_change(cpl,pos,-count);
change->apply(change, (DiaObject *)cpl);
return change;
}
/*!
* \brief Draw an image to Dia's _Image
* \todo use maskColors to have some alpha support
*/
void
DiaOutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
int width, int height, GfxImageColorMap *colorMap,
GBool interpolate, int *maskColors, GBool inlineImg)
{
DiaObject *obj;
GdkPixbuf *pixbuf;
Point pos;
ObjectChange *change;
double *ctm = state->getCTM();
pos.x = ctm[4] * scale;
// there is some undocumented magic done with the ctm for drawImage
// deduced from SplashOutputDev::drawImage()
// cmt[2] and ctm[3] being negative - use that for y postion
// ctm[0] and ctm[3] have width and height in device coordinates
pos.y = (ctm[5] + ctm[3]) * scale;
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, maskColors ? TRUE : FALSE, 8, width, height);
{
// 3 channels, 8 bit
ImageStream imgStr(str, width, colorMap->getNumPixelComps(), colorMap->getBits());
Guchar *line;
int rowstride = gdk_pixbuf_get_rowstride (pixbuf);
guchar *pixels = gdk_pixbuf_get_pixels (pixbuf);
int y;
imgStr.reset(); // otherwise getLine() is crashing right away
line = imgStr.getLine ();
for (y = 0; y < height && line; ++y) {
guchar *dest = pixels + y * rowstride;
colorMap->getRGBLine (line, dest, width);
// ToDo: respect maskColors
line = imgStr.getLine ();
}
}
obj = create_standard_image (pos.x, pos.y,
ctm[0] * scale,
ctm[3] * scale, NULL);
if ((change = dia_object_set_pixbuf (obj, pixbuf)) != NULL)
change->free (change); /* reference transfered */
else
g_object_unref (pixbuf);
addObject (obj);
}
static void
plugin_callback (GtkWidget *widget, gpointer data)
{
DiaCallbackFilter *cbf = data;
/* check if the callback filter is still available */
if (!g_list_find (filter_get_callbacks (), cbf)) {
message_error (_("The function is not available anymore."));
return;
}
/* and finally invoke it */
if (cbf->callback) {
DDisplay *ddisp = NULL;
DiagramData* diadata = NULL;
ObjectChange *change;
/* stuff from the toolbox menu should never get a diagram to modify */
if (strncmp (cbf->menupath, TOOLBOX_MENU, strlen (TOOLBOX_MENU)) != 0) {
ddisp = ddisplay_active();
diadata = ddisp ? ddisp->diagram->data : NULL;
}
change = cbf->callback (diadata, ddisp ? ddisp->diagram->filename : NULL, 0, cbf->user_data);
if (change != NULL) {
if (ddisp) {
undo_object_change(ddisp->diagram, NULL, change);
/*
* - can not call object_add_update() w/o object
* - could call object_add_updates_list() with the selected objects,
* but that would just be an educated guess (layout working on selection)
*/
diagram_add_update_all(ddisp->diagram);
diagram_modified(ddisp->diagram);
diagram_update_extents(ddisp->diagram);
undo_set_transactionpoint(ddisp->diagram->undo);
} else { /* no diagram to keep the change, throw it away */
if (change->free)
change->free(change);
g_free(change);
}
}
}
}
/*!
* \brief Draw an image to Dia's _Image
* \todo use maskColors to have some alpha support
*/
void
DiaOutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
int width, int height, GfxImageColorMap *colorMap,
GBool interpolate, int *maskColors, GBool inlineImg)
{
DiaObject *obj;
GdkPixbuf *pixbuf;
Point pos;
ObjectChange *change;
double *ctm = state->getCTM();
pos.x = ctm[4] * scale;
// there is some undocumented magic done with the ctm for drawImage
// deduced from SplashOutputDev::drawImage()
// cmt[2] and ctm[3] being negative - use that for y postion
// ctm[0] and ctm[3] have width and height in device coordinates
pos.y = (ctm[5] + ctm[3]) * scale;
#ifdef USE_IMAGE_CACHE /* bogus: neither 'ref' nor 'str' work as unique key */
// rather than creating the image over and over again we try to cache them
// via the given 'stream' object
if ((pixbuf = static_cast<GdkPixbuf*>(g_hash_table_lookup (this->image_cache, str))) != NULL) {
g_object_ref (pixbuf);
} else {
#endif
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, maskColors ? TRUE : FALSE, 8, width, height);
{
// 3 channels, 8 bit
ImageStream imgStr(str, width, colorMap->getNumPixelComps(), colorMap->getBits());
Guchar *line;
int rowstride = gdk_pixbuf_get_rowstride (pixbuf);
guchar *pixels = gdk_pixbuf_get_pixels (pixbuf);
int y;
imgStr.reset(); // otherwise getLine() is crashing right away
line = imgStr.getLine ();
for (y = 0; y < height && line; ++y) {
guchar *dest = pixels + y * rowstride;
colorMap->getRGBLine (line, dest, width);
if (maskColors) {
for (int x = 0; x < width; x++) {
bool is_opaque = false;
for (int i = 0; i < colorMap->getNumPixelComps(); ++i) {
if (line[i] < maskColors[2*i] ||
line[i] > maskColors[2*i+1]) {
is_opaque = true;
break;
}
}
if (is_opaque)
*dest |= 0xff000000;
else
*dest = 0;
dest++;
line += colorMap->getNumPixelComps();
}
}
line = imgStr.getLine ();
}
}
#ifdef USE_IMAGE_CACHE
// insert the new image into our cache
g_hash_table_insert (this->image_cache, str, g_object_ref (pixbuf));
}
#endif
obj = create_standard_image (pos.x, pos.y,
ctm[0] * scale,
ctm[3] * scale, NULL);
if ((change = dia_object_set_pixbuf (obj, pixbuf)) != NULL) {
change->free (change);
g_free (change);
}
g_object_unref (pixbuf);
addObject (obj);
}
