/* Lasem * * Copyright © 2009 Emmanuel Pacaud * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General * Public License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place, Suite 330, * Boston, MA 02111-1307, USA. * * Author: * Emmanuel Pacaud */ #include #include #include #include #include #include #include static GObjectClass *parent_class; /* GdomNode implementation */ static const char * lsm_svg_symbol_element_get_node_name (LsmDomNode *node) { return "symbol"; } /* LsmSvgElement implementation */ /* LsmSvgGraphic implementation */ static void _symbol_element_render (LsmSvgElement *self, LsmSvgView *view) { LsmSvgSymbolElement *symbol = LSM_SVG_SYMBOL_ELEMENT (self); LsmSvgUseElement *use_element; LsmSvgElement *element; LsmSvgStyle *style; LsmBox viewport; gboolean is_viewbox_defined; element = lsm_svg_view_get_referencing_element (view); if (!LSM_IS_SVG_USE_ELEMENT (element)) return; use_element = LSM_SVG_USE_ELEMENT (element); style = lsm_svg_view_get_current_style (view); viewport.x = 0; viewport.y = 0; viewport.width = lsm_svg_view_normalize_length (view, &use_element->width.length, LSM_SVG_LENGTH_DIRECTION_HORIZONTAL); viewport.height = lsm_svg_view_normalize_length (view, &use_element->height.length, LSM_SVG_LENGTH_DIRECTION_VERTICAL); is_viewbox_defined = lsm_attribute_is_defined ((LsmAttribute *) &symbol->viewbox); if (is_viewbox_defined && (symbol->viewbox.value.width == 0.0 || symbol->viewbox.value.height == 0.0)) return; if (viewport.width <= 0.0 || viewport.height <= 0.0) return; lsm_debug_render ("[LsmSvgSymbolElement::render] viewport %g, %g, %g, %g", viewport.x, viewport.y, viewport.width, viewport.height); lsm_svg_view_push_viewport (view, &viewport, is_viewbox_defined ? &symbol->viewbox.value : NULL, &symbol->preserve_aspect_ratio.value, style->overflow->value); LSM_SVG_ELEMENT_CLASS (parent_class)->render (self, view); lsm_svg_view_pop_viewport (view); } /* LsmSvgSymbolElement implementation */ LsmDomNode * lsm_svg_symbol_element_new (void) { return g_object_new (LSM_TYPE_SVG_SYMBOL_ELEMENT, NULL); } static const LsmBox viewbox_default = {0.0, 0.0, 0.0, 0.0}; static const LsmSvgPreserveAspectRatio preserve_aspect_ratio_default = { .defer = FALSE, .align = LSM_SVG_ALIGN_X_MID_Y_MID, .meet_or_slice = LSM_SVG_MEET_OR_SLICE_MEET }; static void lsm_svg_symbol_element_init (LsmSvgSymbolElement *self) { } /* LsmSvgSymbolElement class */ static const LsmAttributeInfos lsm_svg_symbol_element_attribute_infos[] = { { .name = "viewBox", .attribute_offset = offsetof (LsmSvgSymbolElement, viewbox), .trait_class = &lsm_box_trait_class, .trait_default = &viewbox_default }, { .name = "preserveAspectRatio", .attribute_offset = offsetof (LsmSvgSymbolElement, preserve_aspect_ratio), .trait_class = &lsm_svg_preserve_aspect_ratio_trait_class, .trait_default = &preserve_aspect_ratio_default } }; static void lsm_svg_symbol_element_class_init (LsmSvgSymbolElementClass *klass) { LsmDomNodeClass *d_node_class = LSM_DOM_NODE_CLASS (klass); LsmSvgElementClass *s_element_class = LSM_SVG_ELEMENT_CLASS (klass); parent_class = g_type_class_peek_parent (klass); d_node_class->get_node_name = lsm_svg_symbol_element_get_node_name; s_element_class->category = LSM_SVG_ELEMENT_CATEGORY_CONTAINER | LSM_SVG_ELEMENT_CATEGORY_STRUCTURAL; s_element_class->render = _symbol_element_render; s_element_class->attribute_manager = lsm_attribute_manager_duplicate (s_element_class->attribute_manager); lsm_attribute_manager_add_attributes (s_element_class->attribute_manager, G_N_ELEMENTS (lsm_svg_symbol_element_attribute_infos), lsm_svg_symbol_element_attribute_infos); } G_DEFINE_TYPE (LsmSvgSymbolElement, lsm_svg_symbol_element, LSM_TYPE_SVG_ELEMENT)