/*
* File: dw_table_cell.c
*
* Copyright (C) 2003 Sebastian Geerken <S.Geerken@ping.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
/*
* This widget is used for table cells with character alignment.
*
* Some notes: If the character is at a position quite far within the
* text, this would result in very wide table columns. Since I do not
* think that an author intends this, DwTableCell makes use of the
* DwPage::ignore_line1_offset_sometimes feature, which will in this
* case disable alignment (see comment in dw_page.h). Actually for the
* whole column, which is simpler to implement (DwTableCell still deals
* with too large values, but DwPage simply ignores them).
*/
#include "dw_table_cell.h"
/*#define DEBUG_LEVEL 1*/
#include "debug.h"
static void Dw_table_cell_class_init (DwTableCellClass *klass);
static void Dw_table_cell_init (DwTableCell *table_cell);
static void Dw_table_cell_word_wrap (DwPage *page,
gint word_ind);
static gint32 Dw_table_cell_get_value (DwAlignedPage *aligned_page);
static void Dw_table_cell_set_max_value (DwAlignedPage *aligned_page,
gint32 max_value,
gint32 value);
static DwAlignedPageClass *parent_class;
/*
* Standard Gtk+ function.
*/
GtkType a_Dw_table_cell_get_type (void)
{
static GtkType type = 0;
if (!type) {
GtkTypeInfo info = {
"DwTableCell",
sizeof (DwTableCell),
sizeof (DwTableCellClass),
(GtkClassInitFunc) Dw_table_cell_class_init,
(GtkObjectInitFunc) Dw_table_cell_init,
(GtkArgSetFunc) NULL,
(GtkArgGetFunc) NULL,
(GtkClassInitFunc) NULL
};
type = gtk_type_unique (DW_TYPE_ALIGNED_PAGE, &info);
}
return type;
}
/*
* Standard Gtk+ function.
*/
static void Dw_table_cell_init (DwTableCell *table_cell)
{
DW_PAGE(table_cell)->ignore_line1_offset_sometimes = TRUE;
table_cell->char_word_index = -1;
}
/*
* Standard Gtk+ function: Create a new table_cell item.
* ref_cell is either another table cell in the same column, or NULL for
* the first DwTableCell in the column. Typically used with
* a_Dw_table_get_cell_ref().
*/
DwWidget* a_Dw_table_cell_new (DwTableCell *ref_cell)
{
GtkObject *object;
object = gtk_object_new (DW_TYPE_TABLE_CELL, NULL);
DBG_OBJ_CREATE (object, "DwTableCell");
p_Dw_aligned_page_set_ref_page (DW_ALIGNED_PAGE (object),
(DwAlignedPage*)ref_cell);
return DW_WIDGET (object);
}
/*
* Standard Gtk+ function.
*/
static void Dw_table_cell_class_init (DwTableCellClass *klass)
{
DwAlignedPageClass *aligned_page_class = DW_ALIGNED_PAGE_CLASS (klass);
DW_PAGE_CLASS(klass)->word_wrap = Dw_table_cell_word_wrap;
aligned_page_class->get_value = Dw_table_cell_get_value;
aligned_page_class->set_max_value = Dw_table_cell_set_max_value;
parent_class = gtk_type_class (DW_TYPE_ALIGNED_PAGE);
}
/*
* Standard DwPage function.
* Extended to use for the first word containing the alignnment character.
*/
static void Dw_table_cell_word_wrap (DwPage *page,
gint word_ind)
{
DwTableCell *cell = DW_TABLE_CELL (page);
DwPageWord *word;
char *p;
DW_PAGE_CLASS(parent_class)->word_wrap (page, word_ind);
if (cell->char_word_index == -1) {
word = &page->words[word_ind];
if (word->content.type == DW_CONTENT_TEXT) {
if ((p = strchr (word->content.data.text,
word->style->text_align_char))) {
cell->char_word_index = word_ind;
cell->char_word_pos = p - word->content.data.text + 1;
} else if (word->style->text_align_char == ' ' &&
word->content.space) {
cell->char_word_index = word_ind + 1;
cell->char_word_pos = 0;
}
}
}
if (word_ind == cell->char_word_index)
p_Dw_aligned_page_update_value (DW_ALIGNED_PAGE (cell));
}
/*
* Implementation of DwAlignedPage::get_value.
*/
static gint32 Dw_table_cell_get_value (DwAlignedPage *aligned_page)
{
DwTableCell *cell = DW_TABLE_CELL (aligned_page);
DwPage *page = DW_PAGE (aligned_page);
DwPageWord *word;
int i, word_index;
gint32 w;
if (cell->char_word_index == -1)
word_index = page->num_words -1;
else
word_index = cell->char_word_index;
w = 0;
for (i = 0; i < word_index; i++) {
word = &page->words[i];
w += word->size.width + word->orig_space;
}
if (cell->char_word_index == -1) {
if (page->num_words > 0) {
word = &page->words[page->num_words - 1];
w += word->size.width;
}
} else {
word = &page->words[cell->char_word_index];
w += gdk_text_width (word->style->font->font, word->content.data.text,
cell->char_word_pos);
}
return w;
}
/*
* Implementation of DwAlignedPage::set_max_value.
*/
static void Dw_table_cell_set_max_value (DwAlignedPage *aligned_page,
gint32 max_value,
gint32 value)
{
DEBUG_MSG (1, "Dw_table_cell_set_max_value([\"%s\" ...], %d, %d)\n",
(DW_PAGE(aligned_page)->num_words > 0 ?
(DW_PAGE(aligned_page)->words[0].content.type
== DW_CONTENT_TEXT ?
DW_PAGE(aligned_page)->words[0].content.data.text : "(?)")
: "(empty)"),
max_value, value);
DW_PAGE(aligned_page)->line1_offset = max_value - value;
p_Dw_widget_queue_resize (DW_WIDGET (aligned_page), 0, TRUE);
}