diff options
Diffstat (limited to 'src/ui/widget/style-subject.cpp')
| -rw-r--r-- | src/ui/widget/style-subject.cpp | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/src/ui/widget/style-subject.cpp b/src/ui/widget/style-subject.cpp new file mode 100644 index 000000000..f7864acc3 --- /dev/null +++ b/src/ui/widget/style-subject.cpp @@ -0,0 +1,193 @@ +/** + * \brief Abstraction for different style widget operands + * + * Copyright (C) 2007 MenTaLguY <mental@rydia.net> + * + * Released under GNU GPL. Read the file 'COPYING' for more information. + */ + +#include "ui/widget/style-subject.h" + +#include "desktop.h" +#include "sp-object.h" +#include "xml/sp-css-attr.h" +#include "desktop-style.h" +#include "desktop-handles.h" +#include "selection.h" +#include "style.h" + +namespace Inkscape { +namespace UI { +namespace Widget { + +StyleSubject::StyleSubject() : _desktop(NULL) { +} + +StyleSubject::~StyleSubject() { + setDesktop(NULL); +} + +void StyleSubject::setDesktop(SPDesktop *desktop) { + if (desktop != _desktop) { + if (desktop) { + GC::anchor(desktop); + } + if (_desktop) { + GC::release(_desktop); + } + _desktop = desktop; + _afterDesktopSwitch(desktop); + _emitChanged(); + } +} + +StyleSubject::Selection::Selection() { +} + +StyleSubject::Selection::~Selection() { +} + +Inkscape::Selection *StyleSubject::Selection::_getSelection() const { + SPDesktop *desktop = getDesktop(); + if (desktop) { + return sp_desktop_selection(desktop); + } else { + return NULL; + } +} + +StyleSubject::iterator StyleSubject::Selection::begin() { + Inkscape::Selection *selection = _getSelection(); + if (selection) { + return iterator(selection->list()); + } else { + return iterator(NULL); + } +} + +NR::Maybe<NR::Rect> StyleSubject::Selection::getBounds(SPItem::BBoxType type) { + Inkscape::Selection *selection = _getSelection(); + if (selection) { + return selection->bounds(type); + } else { + return NR::Nothing(); + } +} + +int StyleSubject::Selection::queryStyle(SPStyle *query, int property) { + SPDesktop *desktop = getDesktop(); + if (desktop) { + return sp_desktop_query_style(desktop, query, property); + } else { + return QUERY_STYLE_NOTHING; + } +} + +void StyleSubject::Selection::_afterDesktopSwitch(SPDesktop *desktop) { + _sel_changed.disconnect(); + _subsel_changed.disconnect(); + _sel_modified.disconnect(); + if (desktop) { + _subsel_changed = desktop->connectToolSubselectionChanged(sigc::hide(sigc::mem_fun(*this, &Selection::_emitChanged))); + Inkscape::Selection *selection = sp_desktop_selection(desktop); + if (selection) { + _sel_changed = selection->connectChanged(sigc::hide(sigc::mem_fun(*this, &Selection::_emitChanged))); + _sel_modified = selection->connectModified(sigc::hide(sigc::hide(sigc::mem_fun(*this, &Selection::_emitChanged)))); + } + } +} + +void StyleSubject::Selection::setCSS(SPCSSAttr *css) { + SPDesktop *desktop = getDesktop(); + if (desktop) { + sp_desktop_set_style(desktop, css); + } +} + +StyleSubject::CurrentLayer::CurrentLayer() { + _element.data = NULL; + _element.next = NULL; +} + +StyleSubject::CurrentLayer::~CurrentLayer() { +} + +void StyleSubject::CurrentLayer::_setLayer(SPObject *layer) { + _layer_release.disconnect(); + _layer_modified.disconnect(); + if (_element.data) { + sp_object_unref(static_cast<SPObject *>(_element.data), NULL); + } + _element.data = layer; + if (layer) { + sp_object_ref(layer, NULL); + _layer_release = layer->connectRelease(sigc::hide(sigc::bind(sigc::mem_fun(*this, &CurrentLayer::_setLayer), (SPObject *)NULL))); + _layer_modified = layer->connectModified(sigc::hide(sigc::hide(sigc::mem_fun(*this, &CurrentLayer::_emitChanged)))); + } +} + +SPObject *StyleSubject::CurrentLayer::_getLayer() const { + return static_cast<SPObject *>(_element.data); +} + +GSList *StyleSubject::CurrentLayer::_getLayerSList() const { + if (_element.data) { + return &_element; + } else { + return NULL; + } +} + +StyleSubject::iterator StyleSubject::CurrentLayer::begin() { + return iterator(_getLayerSList()); +} + +NR::Maybe<NR::Rect> StyleSubject::CurrentLayer::getBounds(SPItem::BBoxType type) { + SPObject *layer = _getLayer(); + if (layer && SP_IS_ITEM(layer)) { + return sp_item_bbox_desktop(SP_ITEM(layer), type); + } else { + return NR::Nothing(); + } +} + +int StyleSubject::CurrentLayer::queryStyle(SPStyle *query, int property) { + GSList *list = _getLayerSList(); + if (list) { + return sp_desktop_query_style_from_list(list, query, property); + } else { + return QUERY_STYLE_NOTHING; + } +} + +void StyleSubject::CurrentLayer::setCSS(SPCSSAttr *css) { + SPObject *layer = _getLayer(); + if (layer) { + sp_desktop_apply_css_recursive(layer, css, true); + } +} + +void StyleSubject::CurrentLayer::_afterDesktopSwitch(SPDesktop *desktop) { + _layer_switched.disconnect(); + if (desktop) { + _layer_switched = desktop->connectCurrentLayerChanged(sigc::mem_fun(*this, &CurrentLayer::_setLayer)); + _setLayer(desktop->currentLayer()); + } else { + _setLayer(NULL); + } +} + +} +} +} + +/* + 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 : |