void
RegisteredColorPicker::on_changed (guint32 rgba)
{
if (_wr->isUpdating())
return;
_wr->setUpdating (true);
// Use local repr here. When repr is specified, use that one, but
// if repr==NULL, get the repr of namedview of active desktop.
Inkscape::XML::Node *local_repr = repr;
SPDocument *local_doc = doc;
if (!local_repr) {
// no repr specified, use active desktop's namedview's repr
SPDesktop *dt = SP_ACTIVE_DESKTOP;
if (!dt)
return;
local_repr = sp_desktop_namedview(dt)->getRepr();
local_doc = sp_desktop_document(dt);
}
gchar c[32];
sp_svg_write_color(c, sizeof(c), rgba);
bool saved = DocumentUndo::getUndoSensitive(local_doc);
DocumentUndo::setUndoSensitive(local_doc, false);
local_repr->setAttribute(_ckey.c_str(), c);
sp_repr_set_css_double(local_repr, _akey.c_str(), (rgba & 0xff) / 255.0);
DocumentUndo::setUndoSensitive(local_doc, saved);
local_doc->setModifiedSinceSave();
DocumentUndo::done(local_doc, SP_VERB_NONE,
/* TODO: annotate */ "registered-widget.cpp: RegisteredColorPicker::on_changed");
_wr->setUpdating (false);
}
static gint sp_dropper_context_root_handler(SPEventContext *event_context, GdkEvent *event)
{
SPDropperContext *dc = (SPDropperContext *) event_context;
int ret = FALSE;
SPDesktop *desktop = event_context->desktop;
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
int pick = prefs->getInt("/tools/dropper/pick", SP_DROPPER_PICK_VISIBLE);
bool setalpha = prefs->getBool("/tools/dropper/setalpha", true);
switch (event->type) {
case GDK_BUTTON_PRESS:
if (event->button.button == 1 && !event_context->space_panning) {
dc->centre = Geom::Point(event->button.x, event->button.y);
dc->dragging = TRUE;
ret = TRUE;
}
break;
case GDK_MOTION_NOTIFY:
if (event->motion.state & GDK_BUTTON2_MASK) {
// pass on middle-drag
ret = FALSE;
break;
} else if (!event_context->space_panning) {
// otherwise, constantly calculate color no matter is any button pressed or not
double rw = 0.0;
double W(0), R(0), G(0), B(0), A(0);
if (dc->dragging) {
// calculate average
// radius
rw = std::min(Geom::L2(Geom::Point(event->button.x, event->button.y) - dc->centre), 400.0);
if (rw == 0) { // happens sometimes, little idea why...
break;
}
Geom::Point const cd = desktop->w2d(dc->centre);
Geom::Matrix const w2dt = desktop->w2d();
const double scale = rw * w2dt.descrim();
Geom::Matrix const sm( Geom::Scale(scale, scale) * Geom::Translate(cd) );
sp_canvas_item_affine_absolute(dc->area, sm);
sp_canvas_item_show(dc->area);
/* Get buffer */
const int x0 = (int) floor(dc->centre[Geom::X] - rw);
const int y0 = (int) floor(dc->centre[Geom::Y] - rw);
const int x1 = (int) ceil(dc->centre[Geom::X] + rw);
const int y1 = (int) ceil(dc->centre[Geom::Y] + rw);
if ((x1 > x0) && (y1 > y0)) {
NRPixBlock pb;
nr_pixblock_setup_fast(&pb, NR_PIXBLOCK_MODE_R8G8B8A8P, x0, y0, x1, y1, TRUE);
/* fixme: (Lauris) */
sp_canvas_arena_render_pixblock(SP_CANVAS_ARENA(sp_desktop_drawing(desktop)), &pb);
for (int y = y0; y < y1; y++) {
const unsigned char *s = NR_PIXBLOCK_PX(&pb) + (y - y0) * pb.rs;
for (int x = x0; x < x1; x++) {
const double dx = x - dc->centre[Geom::X];
const double dy = y - dc->centre[Geom::Y];
const double w = exp(-((dx * dx) + (dy * dy)) / (rw * rw));
W += w;
R += w * s[0];
G += w * s[1];
B += w * s[2];
A += w * s[3];
s += 4;
}
}
nr_pixblock_release(&pb);
R = (R + 0.001) / (255.0 * W);
G = (G + 0.001) / (255.0 * W);
B = (B + 0.001) / (255.0 * W);
A = (A + 0.001) / (255.0 * W);
R = CLAMP(R, 0.0, 1.0);
G = CLAMP(G, 0.0, 1.0);
B = CLAMP(B, 0.0, 1.0);
A = CLAMP(A, 0.0, 1.0);
}
} else {
// pick single pixel
NRPixBlock pb;
int x = (int) floor(event->button.x);
int y = (int) floor(event->button.y);
nr_pixblock_setup_fast(&pb, NR_PIXBLOCK_MODE_R8G8B8A8P, x, y, x+1, y+1, TRUE);
sp_canvas_arena_render_pixblock(SP_CANVAS_ARENA(sp_desktop_drawing(desktop)), &pb);
const unsigned char *s = NR_PIXBLOCK_PX(&pb);
R = s[0] / 255.0;
G = s[1] / 255.0;
B = s[2] / 255.0;
A = s[3] / 255.0;
}
if (pick == SP_DROPPER_PICK_VISIBLE) {
// compose with page color
guint32 bg = sp_desktop_namedview(desktop)->pagecolor;
R = R + (SP_RGBA32_R_F(bg)) * (1 - A);
G = G + (SP_RGBA32_G_F(bg)) * (1 - A);
B = B + (SP_RGBA32_B_F(bg)) * (1 - A);
A = 1.0;
} else {
// un-premultiply color channels
if (A > 0) {
R /= A;
G /= A;
B /= A;
}
}
if (fabs(A) < 1e-4) {
A = 0; // suppress exponentials, CSS does not allow that
}
// remember color
dc->R = R;
dc->G = G;
dc->B = B;
dc->alpha = A;
// status message
double alpha_to_set = setalpha? dc->alpha : 1.0;
guint32 c32 = SP_RGBA32_F_COMPOSE(R, G, B, alpha_to_set);
gchar c[64];
sp_svg_write_color(c, sizeof(c), c32);
// alpha of color under cursor, to show in the statusbar
// locale-sensitive printf is OK, since this goes to the UI, not into SVG
gchar *alpha = g_strdup_printf(_(" alpha %.3g"), alpha_to_set);
// where the color is picked, to show in the statusbar
gchar *where = dc->dragging ? g_strdup_printf(_(", averaged with radius %d"), (int) rw) : g_strdup_printf(_(" under cursor"));
// message, to show in the statusbar
const gchar *message = dc->dragging ? _("<b>Release mouse</b> to set color.") : _("<b>Click</b> to set fill, <b>Shift+click</b> to set stroke; <b>drag</b> to average color in area; with <b>Alt</b> to pick inverse color; <b>Ctrl+C</b> to copy the color under mouse to clipboard");
event_context->defaultMessageContext()->setF(
Inkscape::NORMAL_MESSAGE,
"<b>%s%s</b>%s. %s", c,
(pick == SP_DROPPER_PICK_VISIBLE)? "" : alpha,
where, message
);
g_free(where);
g_free(alpha);
ret = TRUE;
}
break;
case GDK_BUTTON_RELEASE:
if (event->button.button == 1 && !event_context->space_panning)
{
sp_canvas_item_hide(dc->area);
dc->dragging = FALSE;
double alpha_to_set = setalpha? dc->alpha : 1.0;
// do the actual color setting
sp_desktop_set_color(desktop,
(event->button.state & GDK_MOD1_MASK)?
ColorRGBA(1 - dc->R, 1 - dc->G, 1 - dc->B, alpha_to_set) : ColorRGBA(dc->R, dc->G, dc->B, alpha_to_set),
false, !(event->button.state & GDK_SHIFT_MASK));
// REJON: set aux. toolbar input to hex color!
if (!(sp_desktop_selection(desktop)->isEmpty())) {
sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_DROPPER,
_("Set picked color"));
}
ret = TRUE;
}
break;
case GDK_KEY_PRESS:
switch (get_group0_keyval(&event->key)) {
case GDK_Up:
case GDK_Down:
case GDK_KP_Up:
case GDK_KP_Down:
// prevent the zoom field from activation
if (!MOD__CTRL_ONLY) {
ret = TRUE;
}
break;
case GDK_Escape:
sp_desktop_selection(desktop)->clear();
default:
break;
}
break;
default:
break;
}
if (!ret) {
if (((SPEventContextClass *) parent_class)->root_handler) {
ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
}
}
return ret;
}
static void
sp_fill_style_widget_paint_changed (SPPaintSelector *psel, SPWidget *spw)
{
const GSList *items, *i, *r;
GSList *reprs;
SPCSSAttr *css;
gfloat rgba[4], cmyka[5];
SPGradient *vector;
gchar b[64];
if (g_object_get_data (G_OBJECT (spw), "update")) return;
g_object_set_data (G_OBJECT (spw), "update", GINT_TO_POINTER (TRUE));
#ifdef SP_FS_VERBOSE
g_print ("FillStyleWidget: paint changed\n");
#endif
if (spw->inkscape) {
/* fixme: */
if (!SP_WIDGET_DOCUMENT (spw)) {
g_object_set_data (G_OBJECT (spw), "update", GINT_TO_POINTER (FALSE));
return;
}
reprs = NULL;
items = sp_widget_get_item_list (spw);
for (i = items; i != NULL; i = i->next) {
reprs = g_slist_prepend (reprs, SP_OBJECT_REPR (i->data));
}
} else {
reprs = g_slist_prepend (NULL, spw->repr);
items = NULL;
}
switch (psel->mode) {
case SP_PAINT_SELECTOR_MODE_EMPTY:
case SP_PAINT_SELECTOR_MODE_MULTIPLE:
g_warning ("file %s: line %d: Paint %d should not emit 'changed'", __FILE__, __LINE__, psel->mode);
break;
case SP_PAINT_SELECTOR_MODE_NONE:
css = sp_repr_css_attr_new ();
sp_repr_css_set_property (css, "fill", "none");
for (r = reprs; r != NULL; r = r->next) {
sp_repr_css_change_recursive ((SPRepr *) r->data, css, "style");
sp_repr_set_attr_recursive ((SPRepr *) r->data, "sodipodi:fill-cmyk", NULL);
}
sp_repr_css_attr_unref (css);
if (spw->inkscape) sp_document_done (SP_WIDGET_DOCUMENT (spw));
break;
case SP_PAINT_SELECTOR_MODE_COLOR_RGB:
css = sp_repr_css_attr_new ();
sp_paint_selector_get_rgba_floatv (psel, rgba);
sp_svg_write_color (b, 64, SP_RGBA32_F_COMPOSE (rgba[0], rgba[1], rgba[2], 0.0));
sp_repr_css_set_property (css, "fill", b);
g_snprintf (b, 64, "%g", rgba[3]);
sp_repr_css_set_property (css, "fill-opacity", b);
for (r = reprs; r != NULL; r = r->next) {
sp_repr_set_attr_recursive ((SPRepr *) r->data, "sodipodi:fill-cmyk", NULL);
sp_repr_css_change_recursive ((SPRepr *) r->data, css, "style");
}
sp_repr_css_attr_unref (css);
if (spw->inkscape) sp_document_done (SP_WIDGET_DOCUMENT (spw));
break;
case SP_PAINT_SELECTOR_MODE_COLOR_CMYK:
css = sp_repr_css_attr_new ();
sp_paint_selector_get_cmyka_floatv (psel, cmyka);
sp_color_cmyk_to_rgb_floatv (rgba, cmyka[0], cmyka[1], cmyka[2], cmyka[3]);
sp_svg_write_color (b, 64, SP_RGBA32_F_COMPOSE (rgba[0], rgba[1], rgba[2], 0.0));
sp_repr_css_set_property (css, "fill", b);
g_snprintf (b, 64, "%g", cmyka[4]);
sp_repr_css_set_property (css, "fill-opacity", b);
g_snprintf (b, 64, "(%g %g %g %g)", cmyka[0], cmyka[1], cmyka[2], cmyka[3]);
for (r = reprs; r != NULL; r = r->next) {
sp_repr_set_attr_recursive ((SPRepr *) r->data, "sodipodi:fill-cmyk", b);
sp_repr_css_change_recursive ((SPRepr *) r->data, css, "style");
}
sp_repr_css_attr_unref (css);
if (spw->inkscape) sp_document_done (SP_WIDGET_DOCUMENT (spw));
break;
case SP_PAINT_SELECTOR_MODE_GRADIENT_LINEAR:
if (items) {
vector = sp_paint_selector_get_gradient_vector (psel);
if (!vector) {
/* No vector in paint selector should mean that we just changed mode */
vector = sp_document_default_gradient_vector (SP_WIDGET_DOCUMENT (spw));
for (i = items; i != NULL; i = i->next) {
sp_item_force_fill_lineargradient_vector (SP_ITEM (i->data), vector);
}
} else {
vector = sp_gradient_ensure_vector_normalized (vector);
for (i = items; i != NULL; i = i->next) {
SPGradient *lg;
lg = sp_item_force_fill_lineargradient_vector (SP_ITEM (i->data), vector);
sp_paint_selector_write_lineargradient (psel, SP_LINEARGRADIENT (lg), SP_ITEM (i->data));
sp_object_invoke_write (SP_OBJECT (lg), SP_OBJECT_REPR (lg), SP_OBJECT_WRITE_EXT);
}
}
sp_document_done (SP_WIDGET_DOCUMENT (spw));
}
break;
case SP_PAINT_SELECTOR_MODE_GRADIENT_RADIAL:
if (items) {
vector = sp_paint_selector_get_gradient_vector (psel);
if (!vector) {
/* No vector in paint selector should mean that we just changed mode */
vector = sp_document_default_gradient_vector (SP_WIDGET_DOCUMENT (spw));
for (i = items; i != NULL; i = i->next) {
sp_item_force_fill_radialgradient_vector (SP_ITEM (i->data), vector);
}
} else {
vector = sp_gradient_ensure_vector_normalized (vector);
for (i = items; i != NULL; i = i->next) {
SPGradient *rg;
rg = sp_item_force_fill_radialgradient_vector (SP_ITEM (i->data), vector);
sp_paint_selector_write_radialgradient (psel, SP_RADIALGRADIENT (rg), SP_ITEM (i->data));
sp_object_invoke_write (SP_OBJECT (rg), SP_OBJECT_REPR (rg), SP_OBJECT_WRITE_EXT);
}
}
sp_document_done (SP_WIDGET_DOCUMENT (spw));
}
break;
default:
g_warning ("file %s: line %d: Paint selector should not be in mode %d", __FILE__, __LINE__, psel->mode);
break;
}
g_slist_free (reprs);
g_object_set_data (G_OBJECT (spw), "update", GINT_TO_POINTER (FALSE));
}
