/* * A widget for controlling object compositing (filter, opacity, etc.) * * Authors: * Bryce W. Harrington * Gustav Broberg * * Copyright (C) 2004--2007 Authors * * Released under GNU GPL, read the file 'COPYING' for more information */ #include #include "desktop-handles.h" #include "desktop-style.h" #include "document.h" #include "filter-chemistry.h" #include "inkscape.h" #include "inkscape-stock.h" #include "selection.h" #include "style.h" #include "svg/css-ostringstream.h" #include "verbs.h" #include "xml/repr.h" #include "widgets/icon.h" #include "ui/widget/object-composite-settings.h" #include "display/sp-canvas.h" namespace Inkscape { namespace UI { namespace Widget { void ObjectCompositeSettings::_on_desktop_switch( Inkscape::Application *application, SPDesktop *desktop, ObjectCompositeSettings *w ) { w->_subject.setDesktop(desktop); } ObjectCompositeSettings::ObjectCompositeSettings() : _opacity_vbox(false, 0), _opacity_label_box(false, 0), _opacity_label(_("Opacity, %"), 0.0, 1.0, true), _opacity_adjustment(100.0, 0.0, 100.0, 1.0, 1.0, 0.0), _opacity_hscale(_opacity_adjustment), _opacity_spin_button(_opacity_adjustment, 0.01, 1), _fe_vbox(false, 0), _fe_alignment(1, 1, 1, 1), _blocked(false) { // Filter Effects pack_start(_fe_vbox, false, false, 2); _fe_alignment.set_padding(0, 0, 4, 0); _fe_alignment.add(_fe_cb); _fe_vbox.pack_start(_fe_alignment, false, false, 0); _fe_cb.signal_blend_blur_changed().connect(sigc::mem_fun(*this, &ObjectCompositeSettings::_blendBlurValueChanged)); // Opacity pack_start(_opacity_vbox, false, false, 2); _opacity_label_box.pack_start(_opacity_label, false, false, 4); _opacity_vbox.pack_start(_opacity_label_box, false, false, 0); _opacity_vbox.pack_start(_opacity_hbox, false, false, 0); _opacity_hbox.pack_start(_opacity_hscale, true, true, 4); _opacity_hbox.pack_start(_opacity_spin_button, false, false, 0); _opacity_hscale.set_draw_value(false); _opacity_adjustment.signal_value_changed().connect(sigc::mem_fun(*this, &ObjectCompositeSettings::_opacityValueChanged)); show_all_children(); _desktop_activated = g_signal_connect ( G_OBJECT (INKSCAPE), "activate_desktop", G_CALLBACK (&ObjectCompositeSettings::_on_desktop_switch), this ); _subject.connectChanged(sigc::mem_fun(*this, &ObjectCompositeSettings::_subjectChanged)); _subject.setDesktop(SP_ACTIVE_DESKTOP); } ObjectCompositeSettings::~ObjectCompositeSettings() { g_signal_handler_disconnect(G_OBJECT(INKSCAPE), _desktop_activated); } void ObjectCompositeSettings::_blendBlurValueChanged() { SPDesktop *desktop = _subject.getDesktop(); if (!desktop) { return; } if (_blocked) return; _blocked = true; // FIXME: fix for GTK breakage, see comment in SelectedStyle::on_opacity_changed; here it results in crash 1580903 sp_canvas_force_full_redraw_after_interruptions(sp_desktop_canvas(desktop), 0); NR::Maybe bbox = _subject.getBounds(); if (!bbox) { return; } double perimeter = bbox->extent(NR::X) + bbox->extent(NR::Y); const Glib::ustring blendmode = _fe_cb.get_blend_mode(); double radius = _fe_cb.get_blur_value() * perimeter / 400; SPFilter *filter = 0; const bool remfilter = (blendmode == "normal" && radius == 0) || (blendmode == "filter" && !filter); if(blendmode != "filter" || filter) { SPDocument *document = sp_desktop_document (desktop); //apply created filter to every selected item for (StyleSubject::iterator i = _subject.begin() ; i != _subject.end() ; ++i ) { if (!SP_IS_ITEM(*i)) { continue; } SPItem * item = SP_ITEM(*i); SPStyle *style = SP_OBJECT_STYLE(item); g_assert(style != NULL); if(remfilter) { remove_filter (item, false); } else { if(blendmode != "filter") filter = new_filter_simple_from_item(document, item, blendmode.c_str(), radius); sp_style_set_property_url (SP_OBJECT(item), "filter", SP_OBJECT(filter), false); } //request update SP_OBJECT(item)->requestDisplayUpdate(( SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG )); } } sp_document_maybe_done (sp_desktop_document (desktop), "fillstroke:blur", SP_VERB_DIALOG_FILL_STROKE, _("Change blur")); // resume interruptibility sp_canvas_end_forced_full_redraws(sp_desktop_canvas(desktop)); _blocked = false; } void ObjectCompositeSettings::_opacityValueChanged() { SPDesktop *desktop = _subject.getDesktop(); if (!desktop) { return; } if (_blocked) return; _blocked = true; // FIXME: fix for GTK breakage, see comment in SelectedStyle::on_opacity_changed; here it results in crash 1580903 // UPDATE: crash fixed in GTK+ 2.10.7 (bug 374378), remove this as soon as it's reasonably common // (though this only fixes the crash, not the multiple change events) sp_canvas_force_full_redraw_after_interruptions(sp_desktop_canvas(desktop), 0); SPCSSAttr *css = sp_repr_css_attr_new (); Inkscape::CSSOStringStream os; os << CLAMP (_opacity_adjustment.get_value() / 100, 0.0, 1.0); sp_repr_css_set_property (css, "opacity", os.str().c_str()); _subject.setCSS(css); sp_repr_css_attr_unref (css); sp_document_maybe_done (sp_desktop_document (desktop), "fillstroke:opacity", SP_VERB_DIALOG_FILL_STROKE, _("Change opacity")); // resume interruptibility sp_canvas_end_forced_full_redraws(sp_desktop_canvas(desktop)); _blocked = false; } void ObjectCompositeSettings::_subjectChanged() { SPDesktop *desktop = _subject.getDesktop(); if (!desktop) { return; } if (_blocked) return; _blocked = true; SPStyle *query = sp_style_new (sp_desktop_document(desktop)); int result = _subject.queryStyle(query, QUERY_STYLE_PROPERTY_MASTEROPACITY); switch (result) { case QUERY_STYLE_NOTHING: _opacity_hbox.set_sensitive(false); // gtk_widget_set_sensitive (opa, FALSE); break; case QUERY_STYLE_SINGLE: case QUERY_STYLE_MULTIPLE_AVERAGED: // TODO: treat this slightly differently case QUERY_STYLE_MULTIPLE_SAME: _opacity_hbox.set_sensitive(true); _opacity_adjustment.set_value(100 * SP_SCALE24_TO_FLOAT(query->opacity.value)); break; } //query now for current filter mode and average blurring of selection const int blend_result = _subject.queryStyle(query, QUERY_STYLE_PROPERTY_BLEND); switch(blend_result) { case QUERY_STYLE_NOTHING: _fe_cb.set_sensitive(false); break; case QUERY_STYLE_SINGLE: case QUERY_STYLE_MULTIPLE_SAME: _fe_cb.set_blend_mode(query->filter_blend_mode.value); _fe_cb.set_sensitive(true); break; case QUERY_STYLE_MULTIPLE_DIFFERENT: // TODO: set text _fe_cb.set_sensitive(false); break; } if(blend_result == QUERY_STYLE_SINGLE || blend_result == QUERY_STYLE_MULTIPLE_SAME) { int blur_result = _subject.queryStyle(query, QUERY_STYLE_PROPERTY_BLUR); switch (blur_result) { case QUERY_STYLE_NOTHING: //no blurring _fe_cb.set_blur_sensitive(false); break; case QUERY_STYLE_SINGLE: case QUERY_STYLE_MULTIPLE_AVERAGED: case QUERY_STYLE_MULTIPLE_SAME: NR::Maybe bbox = _subject.getBounds(); if (bbox) { double perimeter = bbox->extent(NR::X) + bbox->extent(NR::Y); _fe_cb.set_blur_sensitive(true); //update blur widget value float radius = query->filter_gaussianBlur_deviation.value; float percent = radius * 400 / perimeter; // so that for a square, 100% == half side _fe_cb.set_blur_value(percent); } break; } } sp_style_unref(query); _blocked = false; } } } } /* 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 :