/** 对指定行的文本进行排版 */
static void TextLayer_TextRowTypeset( LCUI_TextLayer* layer, int row )
{
int col, row_width;
TextRowData *p_row, *p_next_row;
TextCharData *p_char;
p_row = layer->row_list.rowdata[row];
row_width = 0;
for( col=0; col<p_row->string_len; ++col ) {
p_char = p_row->string[col];
if( !p_char->bitmap ) {
continue;
}
/* 累加行宽度 */
row_width += p_char->bitmap->advance.x;
/* 如果是当前行的第一个字符，或者行宽度没有超过宽度限制 */
if( layer->max_width <= 0 || !layer->is_autowrap_mode
|| (layer->is_autowrap_mode && !layer->is_mulitiline_mode)
|| col < 1 || p_row->max_width <= layer->max_width ) {
continue;
}
TextLayer_BreakTextRow( layer, row, col, EOL_NONE );
return;
}
TextRow_UpdateSize( p_row, layer->text_style.pixel_size );
/* 如果本行有换行符，或者是最后一行 */
if( p_row->eol != EOL_NONE || row == layer->row_list.rows-1 ) {
return;
}
row_width = p_row->max_width;
/* 本行的文本宽度未达到限制宽度，需要将下行的文本转移至本行 */
while( p_row->eol != EOL_NONE ) {
/* 获取下一行的指针 */
p_next_row = TextRowList_GetRow( &layer->row_list, row+1 );
if( !p_next_row ) {
return;
}
for( col=0; col<p_next_row->string_len; ++col ) {
p_char = p_next_row->string[col];
/* 忽略无字体位图的文字 */
if( !p_char->bitmap ) {
TextRow_Insert( p_row, p_row->string_len, p_char );
p_next_row->string[col] = NULL;
continue;
}
row_width += p_char->bitmap->advance.x;
/* 如果没有超过宽度限制 */
if( !layer->is_autowrap_mode || layer->max_width <= 0
|| (layer->is_autowrap_mode && !layer->is_mulitiline_mode)
|| p_row->max_width <= layer->max_width ) {
TextRow_Insert( p_row, p_row->string_len, p_char );
p_next_row->string[col] = NULL;
continue;
}
/* 如果插入点在下一行 */
if( layer->insert_y == row+1 ) {
/* 如果插入点处于被转移的几个文字中 */
if( layer->insert_x < col ) {
layer->insert_y = row;
layer->insert_x += p_row->string_len;
} else {
/* 否则，减去被转移的文字数 */
layer->insert_x -= col;
}
}
/* 将这一行剩余的文字向前移 */
TextRow_LeftMove( p_next_row, col );
TextRow_UpdateSize( p_row, layer->text_style.pixel_size );
return;
}
TextRow_UpdateSize( p_row, layer->text_style.pixel_size );
TextLayer_InvalidateRowRect( layer, row );
TextLayer_InvalidateRowRect( layer, row+1 );
_DEBUG_MSG("remove row %d\n", row+1);
/* 删除这一行，因为这一行的内容已经转移至当前行 */
TextRowList_RemoveRow( &layer->row_list, row+1 );
/* 如果插入点当前行在后面 */
if( layer->insert_y > row ) {
--layer->insert_y;
}
}
}
/** 对指定行的文本进行排版 */
static void TextLayer_TextRowTypeset( LCUI_TextLayer layer, int row )
{
TextRow txtrow;
TextChar txtchar;
LCUI_BOOL not_autowrap;
int col, row_width = 0;
int max_width;
if( layer->fixed_width > 0 ) {
max_width = layer->fixed_width;
} else {
max_width = layer->max_width;
}
if( max_width <= 0 || !layer->is_autowrap_mode ||
(layer->is_autowrap_mode && !layer->is_mulitiline_mode) ) {
not_autowrap = TRUE;
} else {
not_autowrap = FALSE;
}
txtrow = layer->rowlist.rows[row];
for( col = 0; col < txtrow->length; ++col ) {
txtchar = txtrow->string[col];
if( !txtchar->bitmap ) {
continue;
}
/* 累加行宽度 */
row_width += txtchar->bitmap->advance.x;
/* 如果是当前行的第一个字符，或者行宽度没有超过宽度限制 */
if( not_autowrap || col < 1 || row_width <= max_width ) {
continue;
}
TextLayer_BreakTextRow( layer, row, col, EOL_NONE );
return;
}
TextLayer_UpdateRowSize( layer, txtrow );
/* 如果本行有换行符，或者是最后一行 */
if( txtrow->eol != EOL_NONE || row == layer->rowlist.length - 1 ) {
return;
}
row_width = txtrow->width;
/* 本行的文本宽度未达到限制宽度，需要将下行的文本转移至本行 */
while( txtrow->eol == EOL_NONE ) {
/* 获取下一行的指针 */
TextRow next_txtrow = TextLayer_GetRow( layer, row + 1 );
if( !next_txtrow ) {
break;
}
for( col = 0; col < next_txtrow->length; ++col ) {
txtchar = next_txtrow->string[col];
/* 忽略无字体位图的文字 */
if( !txtchar->bitmap ) {
TextRow_Insert( txtrow, -1, txtchar );
next_txtrow->string[col] = NULL;
continue;
}
row_width += txtchar->bitmap->advance.x;
/* 如果没有超过宽度限制 */
if( not_autowrap || row_width <= max_width ) {
TextRow_Insert( txtrow, -1, txtchar );
next_txtrow->string[col] = NULL;
continue;
}
/* 如果插入点在下一行 */
if( layer->insert_y == row + 1 ) {
/* 如果插入点处于被转移的几个文字中 */
if( layer->insert_x < col ) {
layer->insert_y = row;
layer->insert_x += txtrow->length;
} else {
/* 否则，减去被转移的文字数 */
layer->insert_x -= col;
}
}
/* 将这一行剩余的文字向前移 */
TextRow_LeftMove( next_txtrow, col );
TextLayer_UpdateRowSize( layer, txtrow );
return;
}
txtrow->eol = next_txtrow->eol;
TextLayer_UpdateRowSize( layer, txtrow );
TextLayer_InvalidateRowRect( layer, row, 0, -1 );
TextLayer_InvalidateRowRect( layer, row + 1, 0, -1 );
/* 删除这一行，因为这一行的内容已经转移至当前行 */
TextRowList_RemoveRow( &layer->rowlist, row + 1 );
/* 如果插入点当前行在后面 */
if( layer->insert_y > row ) {
--layer->insert_y;
}
}
}