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/* Fo
* fo-block-area.c: Block formatting object area creation
*
* Copyright (C) 2001 Sun Microsystems
* Copyright (C) 2007 Menteith Consulting Ltd
*
* See COPYING for the status of this software.
*/
#include <fo-inline-fo.h>
#include <area/fo-area-area.h>
#include <area/fo-area-layout.h>
#include <fo-text.h>
#include <fo-block-area.h>
#include <fo-block-private.h>
#include "property/fo-property-common-font.h"
#include "property/fo-property-text-property.h"
#include <property/fo-property-background-color.h>
#include <property/fo-property-dominant-baseline.h>
#include <property/fo-property-baseline-shift.h>
#include "property/fo-property-font-family.h"
#include "property/fo-property-font-size.h"
#include "property/fo-property-font-stretch.h"
#include <property/fo-property-space-after.h>
#include <property/fo-property-space-before.h>
#include <libfo/fo-doc.h>
#include <libfo/fo-doc-commands.h>
#include <libfo/fo-layout-private.h>
#if 0
static void
fo_block_debug_dump_item (gpointer data, gpointer user_data)
{
const PangoItem *item = (const PangoItem *) data;
const PangoEngine *engine = (const PangoEngine *) item->analysis.shape_engine;
PangoFontDescription *font_desc = pango_font_describe (item->analysis.font);
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"dump_item:: offset: %d", item->offset);
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"dump_item:: length: %d", item->length);
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"dump_item:: num_chars: %d", item->num_chars);
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"dump_item:: shape_engine: %p", item->analysis.shape_engine);
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"dump_item:: shape_engine: %s", engine->id);
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"dump_item:: lang_engine: %p", item->analysis.lang_engine);
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"dump_item:: font: %p", item->analysis.font);
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"dump_item:: font: %s", pango_font_description_to_string (font_desc));
}
static void
fo_block_debug_dump_item_glist (GList *item_glist)
{
g_list_foreach (item_glist,
fo_block_debug_dump_item,
NULL);
}
static gint
fo_block_area_glist_find_attr_type (gpointer pango_attr, gpointer attr_klass)
{
/*
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"find_attr_type:: attr: %p; klass: %d", pango_attr, GPOINTER_TO_INT (attr_klass));
*/
if (((PangoAttribute *) pango_attr)->klass->type == GPOINTER_TO_INT (attr_klass))
{
return 0;
}
else
{
return -1;
}
}
#endif
static void
fo_block_area_get_text_attr_list2 (FoFo *parent_fo,
FoDoc *fo_doc,
GString *text,
GList **attr_glist,
guint debug_level)
{
FoNode *fo_child_node;
const FoBlock *fo_block = (const FoBlock *) parent_fo;
gint start_index, end_index;
start_index = text->len;
fo_child_node = fo_node_first_child (FO_NODE (parent_fo));
while (fo_child_node)
{
fo_inline_fo_get_text_attr_list (FO_FO (fo_child_node),
fo_doc,
text,
attr_glist,
debug_level);
fo_child_node = fo_node_next_sibling (fo_child_node);
}
end_index = text->len;
if (start_index != end_index)
{
PangoAttribute *pango_attr;
*attr_glist =
g_list_concat (fo_property_common_font_get_pango_attrs (fo_block->font_family,
fo_block->font_size,
fo_block->font_stretch,
fo_block->font_style,
fo_block->font_variant,
fo_block->font_weight,
start_index,
end_index),
*attr_glist);
/*
pango_attr =
fo_property_text_property_new_attr (fo_block->line_height);
pango_attr->start_index = start_index;
pango_attr->end_index = end_index;
*attr_glist = g_list_prepend (*attr_glist, pango_attr);
*/
pango_attr =
fo_property_text_property_new_attr (fo_block->color);
pango_attr->start_index = start_index;
pango_attr->end_index = end_index;
*attr_glist = g_list_prepend (*attr_glist, pango_attr);
if (FO_IS_COLOR (fo_property_get_value (fo_block->background_color)))
{
pango_attr =
fo_property_text_property_new_attr (fo_block->background_color);
pango_attr->start_index = start_index;
pango_attr->end_index = end_index;
*attr_glist = g_list_prepend (*attr_glist, pango_attr);
}
/*
pango_attr =
fo_property_text_property_new_attr (fo_block->keep_together_within_line);
pango_attr->start_index = start_index;
pango_attr->end_index = end_index;
*attr_glist = g_list_prepend (*attr_glist, pango_attr);
pango_attr =
fo_property_text_property_new_attr (fo_block->keep_with_next_within_line);
pango_attr->start_index = start_index;
pango_attr->end_index = end_index;
*attr_glist = g_list_prepend (*attr_glist, pango_attr);
pango_attr =
fo_property_text_property_new_attr (fo_block->keep_with_previous_within_line);
pango_attr->start_index = start_index;
pango_attr->end_index = end_index;
*attr_glist = g_list_prepend (*attr_glist, pango_attr);
*/
}
#if defined(LIBFO_DEBUG) && 0
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"block_area_new2:: text: %s",
text->str);
if (*attr_glist)
{
PangoAttrList *attr_list = pango_attr_list_new ();
g_list_foreach (*attr_glist,
fo_block_area_pango_attr_list_add,
attr_list);
fo_block_debug_dump_attr_list (attr_list);
}
#endif
}
void
fo_block_area_new (FoFo *block,
FoDoc *fo_doc,
FoArea *parent_area,
FoArea **new_area,
guint debug_level)
{
g_return_if_fail (block != NULL);
g_return_if_fail (FO_IS_BLOCK (block));
g_return_if_fail (FO_IS_DOC (fo_doc));
gfloat parent_child_available_ipdim =
fo_area_get_child_available_ipdim (parent_area);
gfloat x = fo_area_get_next_x (parent_area);
gfloat y = fo_area_get_next_y (parent_area);
gfloat border_start_width =
fo_length_get_value (fo_property_get_value (fo_block_get_border_start_width (block)));
gfloat border_end_width =
fo_length_get_value (fo_property_get_value (fo_block_get_border_end_width (block)));
gfloat border_before_width =
fo_length_get_value (fo_property_get_value (fo_block_get_border_before_width (block)));
gfloat border_after_width =
fo_length_get_value (fo_property_get_value (fo_block_get_border_after_width (block)));
gfloat padding_start =
fo_length_get_value (fo_property_get_value (fo_block_get_padding_start (block)));
gfloat padding_end =
fo_length_get_value (fo_property_get_value (fo_block_get_padding_end (block)));
gfloat padding_before =
fo_length_get_value (fo_property_get_value (fo_block_get_padding_before (block)));
gfloat padding_after =
fo_length_get_value (fo_property_get_value (fo_block_get_padding_after (block)));
FoDatatype *start_indent_datatype =
fo_property_get_value (fo_block_get_start_indent (block));
gfloat start_indent;
if (FO_IS_LENGTH (start_indent_datatype))
{
start_indent = fo_length_get_value (start_indent_datatype);
}
else
{
start_indent =
fo_percentage_get_value (start_indent_datatype) * 0.01 *
fo_area_area_get_width (parent_area);
#if defined(LIBFO_DEBUG) && 0
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"get_text_attr_list:: start-indent: %f, parent width: %f",
fo_percentage_get_value (start_indent_datatype),
fo_area_area_get_width (parent_area));
#endif
}
FoDatatype *end_indent_datatype =
fo_property_get_value (fo_block_get_end_indent (block));
gfloat end_indent;
if (FO_IS_LENGTH (end_indent_datatype))
{
end_indent = fo_length_get_value (end_indent_datatype);
}
else
{
end_indent =
fo_percentage_get_value (end_indent_datatype) * 0.01 *
fo_area_area_get_width (parent_area);
#if defined(LIBFO_DEBUG) && 0
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"get_text_attr_list:: end-indent: %f, parent width: %f",
fo_percentage_get_value (end_indent_datatype),
fo_area_area_get_width (parent_area));
#endif
}
gfloat layout_width =
parent_child_available_ipdim -
(border_start_width + border_end_width + padding_start + padding_end +
start_indent + end_indent);
FoFontDesc *font_desc =
fo_font_desc_copy (fo_doc_get_font_desc (fo_doc));
gchar *font_family =
fo_string_get_value (fo_property_get_value (fo_block_get_font_family (block)));
fo_font_desc_set_family (font_desc, font_family);
g_free (font_family);
fo_font_desc_set_size (font_desc,
fo_length_get_value (fo_property_get_value (fo_block_get_font_size (block))));
fo_font_desc_set_weight (font_desc,
fo_integer_get_value (fo_property_get_value (fo_block_get_font_weight (block))));
fo_font_desc_set_style (font_desc,
fo_enum_get_value (fo_property_get_value (fo_block_get_font_style (block))));
fo_font_desc_set_stretch (font_desc,
fo_enum_get_value (fo_property_get_value (fo_block_get_font_stretch (block))));
fo_font_desc_set_variant (font_desc,
fo_enum_get_value (fo_property_get_value (fo_block_get_font_variant (block))));
FoLayout *fo_layout = fo_doc_get_new_layout (fo_doc);
fo_layout_set_width (fo_layout,
layout_width);
fo_layout_set_line_stacking_strategy (fo_layout,
fo_enum_get_value (fo_property_get_value (fo_block_get_line_stacking_strategy (block))));
fo_layout_set_font_desc (fo_layout,
font_desc);
gfloat line_height =
fo_length_get_value (fo_property_get_value (fo_block_get_line_height (block)));
fo_layout_set_line_height (fo_layout,
line_height);
/* FIXME: should be FO-specific dir enum */
PangoDirection base_dir = fo_doc_get_base_dir (fo_doc);
fo_layout_set_alignment (fo_layout,
base_dir);
gfloat text_indent =
fo_length_get_value (fo_property_get_value (fo_block_get_text_indent (block)));
fo_layout_set_indent (fo_layout,
text_indent);
/*
FIXME: Pango does not justify.
fo_layout_set_justify (pango_layout, TRUE);
*/
GString *text = g_string_new (NULL);
GList *attr_glist = NULL;
fo_block_area_get_text_attr_list2 (FO_FO (block),
fo_doc,
text,
&attr_glist,
debug_level);
fo_layout_set_text (fo_layout,
text);
fo_layout_set_attributes (fo_layout,
attr_glist);
if (debug_level & FO_DEBUG_PANGO)
{
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"get_text_attr_list:: block text: '%s'", (gchar *) text->str);
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"get_text_attr_list:: attr_glist: %p", attr_glist);
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"get_text_attr_list:: attr_glist length: %d", g_list_length (attr_glist));
fo_object_debug_dump (fo_layout, 0);
}
*new_area = fo_area_layout_new_with_layout (fo_layout);
FoRectangle logical;
fo_layout_get_extents (fo_layout,
&logical);
fo_area_area_set_height (*new_area,
logical.height / PANGO_SCALE +
border_before_width + padding_before +
border_after_width + padding_after);
fo_area_area_set_width (*new_area,
MAX (parent_child_available_ipdim -
start_indent -
end_indent,
0));
fo_area_area_set_x (*new_area, x + start_indent);
fo_area_area_set_y (*new_area, y);
fo_area_area_set_border_after (*new_area, border_after_width);
fo_area_area_set_border_before (*new_area, border_before_width);
fo_area_area_set_border_end (*new_area, border_end_width);
fo_area_area_set_border_start (*new_area, border_start_width);
fo_area_area_set_padding_before (*new_area, padding_before);
fo_area_area_set_padding_end (*new_area, padding_end);
fo_area_area_set_padding_after (*new_area, padding_after);
fo_area_area_set_padding_start (*new_area, padding_start);
fo_area_area_set_start_indent (*new_area, start_indent);
fo_area_area_set_end_indent (*new_area, end_indent);
gfloat space_before =
fo_length_get_value (fo_property_get_value (fo_block_get_space_before (block)));
fo_area_area_set_space_before (*new_area, space_before);
gfloat space_after =
fo_length_get_value (fo_property_get_value (fo_block_get_space_after (block)));
fo_area_area_set_space_after (*new_area, space_after);
fo_area_set_generated_by (*new_area, FO_FO (block));
FO_FO (block)->areas = g_list_append (FO_FO (block)->areas, *new_area);
g_object_unref (font_desc);
}
void
fo_block_area_new3 (FoFo *block,
FoDoc *fo_doc,
FoArea *parent_area,
FoArea **new_area,
guint debug_level)
{
#if defined(LIBFO_DEBUG) && 0
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"block_area_new3:: *** block parent before adding block:");
fo_object_debug_dump (parent_area, 0);
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"block_area_new3:: *** end block parent");
#endif
fo_block_area_new (block,
fo_doc,
parent_area,
new_area,
debug_level);
fo_area_add_child (parent_area, *new_area);
*new_area = fo_area_size_request (*new_area);
fo_area_resolve_text_align (*new_area);
#if defined(LIBFO_DEBUG) && 0
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"block_area_new3:: *new_area: %s; generated by: %s; parent: %s; generated by: %s",
fo_object_debug_sprintf (*new_area),
fo_object_debug_sprintf ((*new_area)->generated_by),
fo_object_debug_sprintf (fo_area_parent (*new_area)),
fo_object_debug_sprintf (fo_area_parent (*new_area->generated_by)));
#endif
#if defined(LIBFO_DEBUG) && 0
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"block_area_new3:: *** block parent after adding block:");
fo_object_debug_dump (parent_area, 0);
g_log (G_LOG_DOMAIN,
G_LOG_LEVEL_DEBUG,
"block_area_new3:: *** end block parent");
#endif
}
void
fo_block_area_new2 (FoFo *fo_node,
FoFoAreaNew2Context *context,
GError **error)
{
g_return_if_fail (FO_IS_FO (fo_node));
g_return_if_fail (context != NULL);
g_return_if_fail (error == NULL || *error == NULL);
fo_block_area_new (fo_node,
context->fo_doc,
context->parent_area,
context->new_area,
context->debug_level);
#if defined(LIBFO_DEBUG) && 0
fo_object_debug_dump (*(context->new_area), 0);
#endif
fo_area_add_child (context->parent_area, *(context->new_area));
*(context->new_area) = fo_area_size_request (*(context->new_area));
fo_area_resolve_text_align (*(context->new_area));
}
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