/* 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 static GObjectClass *parent_class; /* GdomNode implementation */ static const char * lsm_svg_marker_element_get_node_name (LsmDomNode *node) { return "marker"; } /* LsmSvgElement implementation */ /* LsmSvgGraphic implementation */ static void _marker_element_render (LsmSvgElement *self, LsmSvgView *view) { LsmSvgMarkerElement *marker = LSM_SVG_MARKER_ELEMENT (self); LsmSvgStyle *style; LsmSvgMatrix matrix; LsmBox viewport; LsmBox viewbox; double ref_x, ref_y; if (!marker->enable_rendering) { /* Remember style for futur rendering. * Spec says properties are inherited from ancestor, not element referencing * the marker element. */ if (marker->style) lsm_svg_style_unref (marker->style); marker->style = lsm_svg_style_ref (lsm_svg_view_get_current_style (view)); lsm_debug_render ("[LsmSvgMarkerElement::render] Direct rendering not allowed"); return; } else { marker->enable_rendering = FALSE; } style = lsm_svg_style_new_inherited (marker->style, &self->property_bag); style->ignore_group_opacity = FALSE; lsm_svg_view_push_composition (view, style); if (marker->stroke_width > 0.0 || marker->units.value != LSM_SVG_MARKER_UNITS_STROKE_WIDTH) { ref_x = lsm_svg_view_normalize_length (view, &marker->ref_x.length, LSM_SVG_LENGTH_DIRECTION_HORIZONTAL); ref_y = lsm_svg_view_normalize_length (view, &marker->ref_y.length, LSM_SVG_LENGTH_DIRECTION_VERTICAL); viewport.x = 0.0; viewport.y = 0.0; viewport.width = lsm_svg_view_normalize_length (view, &marker->width.length, LSM_SVG_LENGTH_DIRECTION_HORIZONTAL); viewport.height = lsm_svg_view_normalize_length (view, &marker->height.length, LSM_SVG_LENGTH_DIRECTION_HORIZONTAL); if (lsm_attribute_is_defined (&marker->viewbox.base)) viewbox = marker->viewbox.value; else viewbox = viewport; if (marker->units.value == LSM_SVG_MARKER_UNITS_STROKE_WIDTH) { viewport.width *= marker->stroke_width; viewport.height *= marker->stroke_width; lsm_debug_render ("[LsmSvgMarkerElement::render] stroke_width scale = %g", marker->stroke_width); } lsm_svg_view_viewbox_to_viewport (view, &viewport, &viewbox, &marker->preserve_aspect_ratio.value, &ref_x, &ref_y); if (marker->orientation.value.type == LSM_SVG_ANGLE_TYPE_FIXED) { lsm_svg_matrix_init_rotate (&matrix, marker->orientation.value.angle * M_PI / 180.0); lsm_debug_render ("[LsmSvgMarkerElement::render] fixed angle = %g°", marker->orientation.value.angle); } else { lsm_svg_matrix_init_rotate (&matrix, marker->vertex_angle); lsm_debug_render ("[LsmSvgMarkerElement::render] auto angle = %g rad", marker->vertex_angle); } lsm_svg_matrix_translate (&matrix, -ref_x, -ref_y); if (lsm_svg_view_push_matrix (view, &matrix)) { lsm_svg_view_push_viewport (view, &viewport, &viewbox, &marker->preserve_aspect_ratio.value, style->overflow->value); LSM_SVG_ELEMENT_CLASS (parent_class)->render (self, view); lsm_svg_view_pop_viewport (view); } lsm_svg_view_pop_matrix (view); } lsm_svg_view_pop_composition (view); lsm_svg_style_unref (style); } /* LsmSvgMarkerElement implementation */ void lsm_svg_marker_element_render (LsmSvgMarkerElement *marker, LsmSvgView *view, double stroke_width, double vertex_angle) { g_return_if_fail (LSM_IS_SVG_MARKER_ELEMENT (marker)); marker->stroke_width = stroke_width; marker->vertex_angle = vertex_angle; lsm_svg_element_force_render (LSM_SVG_ELEMENT (marker), view); } static void lsm_svg_marker_element_enable_rendering (LsmSvgElement *element) { LSM_SVG_MARKER_ELEMENT (element)->enable_rendering = TRUE; } LsmDomNode * lsm_svg_marker_element_new (void) { return g_object_new (LSM_TYPE_SVG_MARKER_ELEMENT, NULL); } static const LsmSvgMarkerUnits units_default = LSM_SVG_MARKER_UNITS_STROKE_WIDTH; static const LsmSvgLength length_default = { .value_unit = 0.0, .type = LSM_SVG_LENGTH_TYPE_NUMBER}; static const LsmSvgLength width_default = { .value_unit = 3.0, .type = LSM_SVG_LENGTH_TYPE_NUMBER}; static const LsmSvgAngle orientation_default = { .angle = 0.0, .type = LSM_SVG_ANGLE_TYPE_FIXED}; 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_marker_element_init (LsmSvgMarkerElement *self) { self->enable_rendering = FALSE; self->ref_x.length = length_default; self->ref_y.length = length_default; self->width.length = width_default; self->height.length = width_default; self->preserve_aspect_ratio.value = preserve_aspect_ratio_default; self->orientation.value = orientation_default; } static void lsm_svg_marker_element_finalize (GObject *object) { LsmSvgMarkerElement *marker = LSM_SVG_MARKER_ELEMENT (object); if (marker->style) lsm_svg_style_unref (marker->style); parent_class->finalize (object); } /* LsmSvgMarkerElement class */ static const LsmAttributeInfos lsm_svg_marker_element_attribute_infos[] = { { .name = "markerUnits", .attribute_offset = offsetof (LsmSvgMarkerElement, units), .trait_class = &lsm_svg_marker_units_trait_class, .trait_default = &units_default }, { .name = "refX", .attribute_offset = offsetof (LsmSvgMarkerElement, ref_x), .trait_class = &lsm_svg_length_trait_class, .trait_default = &length_default }, { .name = "refY", .attribute_offset = offsetof (LsmSvgMarkerElement, ref_y), .trait_class = &lsm_svg_length_trait_class, .trait_default = &length_default }, { .name = "markerWidth", .attribute_offset = offsetof (LsmSvgMarkerElement, width), .trait_class = &lsm_svg_length_trait_class, .trait_default = &width_default }, { .name = "markerHeight", .attribute_offset = offsetof (LsmSvgMarkerElement, height), .trait_class = &lsm_svg_length_trait_class, .trait_default = &width_default }, { .name = "orient", .attribute_offset = offsetof (LsmSvgMarkerElement, orientation), .trait_class = &lsm_svg_angle_trait_class, .trait_default = &orientation_default }, { .name = "viewBox", .attribute_offset = offsetof (LsmSvgMarkerElement, viewbox), .trait_class = &lsm_box_trait_class, .trait_default = &viewbox_default }, { .name = "preserveAspectRatio", .attribute_offset = offsetof (LsmSvgMarkerElement, preserve_aspect_ratio), .trait_class = &lsm_svg_preserve_aspect_ratio_trait_class, .trait_default = &preserve_aspect_ratio_default } }; static void lsm_svg_marker_element_class_init (LsmSvgMarkerElementClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (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); object_class->finalize = lsm_svg_marker_element_finalize; d_node_class->get_node_name = lsm_svg_marker_element_get_node_name; s_element_class->category = LSM_SVG_ELEMENT_CATEGORY_CONTAINER; s_element_class->render = _marker_element_render; s_element_class->enable_rendering = lsm_svg_marker_element_enable_rendering; 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_marker_element_attribute_infos), lsm_svg_marker_element_attribute_infos); } G_DEFINE_TYPE (LsmSvgMarkerElement, lsm_svg_marker_element, LSM_TYPE_SVG_ELEMENT)