int
TextLayer_Text_Add( LCUI_TextLayer *layer, char *new_text )
/* 在光标处添加文本，如有选中文本，将被删除 */
{
uint_t i, rows;
TextLayer_Text_Process( layer, new_text );
TextLayer_Text_GenerateBMP( layer );
/* 更新每一行文本位图的尺寸 */
rows = Queue_Get_Total( &layer->rows_data );
for(i=0; i<rows; ++i) {
TextLayer_Update_RowSize( layer, i );
}
return 0;
}
void
TextLayer_Text_GenerateBMP( LCUI_TextLayer *layer )
/* 为文本图层中的文本生成位图，已存在位图的文字将不重新生成 */
{
BOOL refresh = FALSE;
LCUI_Pos pos;
int i, j, len, rows;
Text_RowData *row_ptr;
LCUI_CharData *char_ptr;
DEBUG_MSG1("enter\n");
DEBUG_MSG1("thread: %lu\n", thread_self());
rows = Queue_Get_Total( &layer->rows_data );
for( pos.y=0,j=0; j<rows; ++j ) {
row_ptr = Queue_Get( &layer->rows_data, j );
len = Queue_Get_Total( &row_ptr->string );
DEBUG_MSG1("row %d, len: %d\n", j, len);
for( pos.x=0,i=0; i<len; ++i) {
char_ptr = Queue_Get( &row_ptr->string, i );
DEBUG_MSG1("generate FontBMP, get char_ptr: %p, char: %c\n",
char_ptr, char_ptr->char_code );
if( !char_ptr || !char_ptr->display ) {
DEBUG_MSG1("no display\n");
continue;
}
if( FontBMP_Valid( &char_ptr->bitmap ) ) {
DEBUG_MSG1("have FontBMP\n");
if( !refresh ) {
pos.x += char_ptr->bitmap.advance.x;
continue;
}
} else {
refresh = TRUE;
DEBUG_MSG1( "generate FontBMP, char code: %d\n", char_ptr->char_code );
TextLayer_Get_Char_BMP ( &layer->default_data, char_ptr );
}
DEBUG_MSG1( "char_data->bitmap.advance.x: %d\n", char_ptr->bitmap.advance.x );
TextLayer_Clear( layer, pos, row_ptr->max_size.h, char_ptr );
char_ptr->need_update = TRUE;
pos.x += char_ptr->bitmap.advance.x;
}
refresh = FALSE;
/* 更新当前行的尺寸 */
TextLayer_Update_RowSize( layer, j );
DEBUG_MSG1("row size: %d,%d\n", row_ptr->max_size.w, row_ptr->max_size.h);
pos.y += row_ptr->max_size.h;
}
DEBUG_MSG1("quit\n");
}
int
TextLayer_Text( LCUI_TextLayer *layer, char *new_text )
/* 设定整个文本图层中需显示的文本，原有选中文本被删除 */
{
DEBUG_MSG("enter\n");
uint_t i, rows;
LCUI_TextLayer new_layer;
TextLayer_Init( &new_layer );
TextLayer_Text_Set_Default_Style( &new_layer, layer->default_data);
TextLayer_Using_StyleTags( &new_layer, layer->using_style_tags );
TextLayer_Text_Process( &new_layer, new_text );
/* 合并两个文本图层，记录不同字所在区域，等待处理刷新 */
TextLayer_Merge( layer, &new_layer );
TextLayer_Text_GenerateBMP( layer );
/* 更新每一行文本位图的尺寸 */
rows = Queue_Get_Total( &layer->rows_data );
for(i=0; i<rows; ++i) {
TextLayer_Update_RowSize( layer, i );
}
Destroy_TextLayer( &new_layer );
DEBUG_MSG("quit\n");
return 0;
}
TextLayer_Text_SetDefaultStyle( LCUI_TextLayer *layer, LCUI_TextStyle style )
/* 设定默认的文本样式，需要调用TextLayer_Draw函数进行文本位图更新 */
{
LCUI_Pos pos;
LCUI_CharData *char_ptr;
LCUI_TextStyle *old_style;
Text_RowData *row_ptr;
int rows, len, i, j;
layer->default_data = style;
rows = Queue_GetTotal( &layer->rows_data );
for(pos.y=0,i=0; i<rows; ++i) {
row_ptr = Queue_Get( &layer->rows_data, i );
len = Queue_GetTotal( &row_ptr->string );
for(pos.x=0,j=0; j<len; ++j) {
char_ptr = Queue_Get( &row_ptr->string, j );
if( !char_ptr ) {
continue;
}
old_style = char_ptr->data;
if( !old_style ) {
char_ptr->need_update = TRUE;
goto skip_style_cmp;
}
/* 若有属性是缺省的 */
if(!old_style->_pixel_size) {
old_style->pixel_size = style.pixel_size;
char_ptr->need_update = TRUE;
}
if(!old_style->_style) {
old_style->style = style.style;
char_ptr->need_update = TRUE;
}
if(!old_style->_family) {
old_style->font_id = style.font_id;
char_ptr->need_update = TRUE;
}
if(!old_style->_weight) {
old_style->weight = style.weight;
char_ptr->need_update = TRUE;
}
if(!old_style->_back_color) {
old_style->back_color = style.back_color;
char_ptr->need_update = TRUE;
}
if(!old_style->_fore_color) {
old_style->fore_color = style.fore_color;
char_ptr->need_update = TRUE;
}
if(!old_style->_decoration) {
old_style->decoration = style.decoration;
char_ptr->need_update = TRUE;
}
skip_style_cmp:;
if(char_ptr->need_update) {
TextLayer_Clear( layer, pos, row_ptr->max_size.h, char_ptr );
pos.x += char_ptr->bitmap->advance.x;
TextLayer_GetCharBMP ( &layer->default_data, char_ptr );
} else {
pos.x += char_ptr->bitmap->advance.x;
}
}
pos.y += row_ptr->max_size.h;
TextLayer_Update_RowSize( layer, i );
}
}
static int
_TextLayer_Text_Delete ( LCUI_TextLayer *layer, LCUI_Pos start_pos, int len )
/* 以start_pos为起点，删除n个文字 */
{
LCUI_BOOL refresh = TRUE;
LCUI_CharData *char_ptr;
LCUI_Pos tmp_pos, pixel_pos;
int left_or_right, rows, cols;
Text_RowData *row_ptr, *tmp_row;
if( start_pos.x < 0 ) {
len += start_pos.x;
start_pos.x = 0;
}
if( start_pos.y < 0 ) {
start_pos.y = 0;
}
if( len <= 0 ) {
return -1;
}
/* 确定起点位置的XY轴坐标 */
pixel_pos = TextLayer_Char_GetPixelPos( layer, start_pos );
rows = Queue_GetTotal( &layer->rows_data );
row_ptr = Queue_Get( &layer->rows_data, start_pos.y );
if( !row_ptr ) {
return -1;
}
cols = Queue_GetTotal( &row_ptr->string );
/* 根据光标所在位置，确定遍历方向 */
if( layer->current_des_pos.y > start_pos.y
|| (layer->current_des_pos.y == start_pos.y
&& layer->current_des_pos.x > start_pos.x)) {
left_or_right = 0;
}
else {
left_or_right = 1;
}
/* 如果需删除的字符只在当前行 */
if( start_pos.x + len <= cols ) {
/* 标记后面的文字位图需要刷新 */
TextLayer_CharLater_Refresh( layer, start_pos );
}
for( ; start_pos.x<=cols && len>0; --len ) {
/* 如果到了行尾 */
if( start_pos.x == cols ) {
/* 如果当前行是最后一行 */
if( start_pos.y >= rows-1 ) {
break;
}
if( refresh ) {
tmp_pos.x = 0;
tmp_pos.y=start_pos.y+1;
/* 刷新该行后面所有行的字符 */
for( ; tmp_pos.y<rows; ++tmp_pos.y ) {
TextLayer_CharLater_Refresh( layer, tmp_pos );
}
refresh = FALSE;
}
/* 将当前行行尾的换行符'\n'从源文本中移除 */
TextLayer_Text_DeleteChar( layer, row_ptr->last_char, left_or_right );
/* 获取指向下一行文本的指针 */
tmp_row = Queue_Get( &layer->rows_data, start_pos.y+1 );
/* 将下一行的文本拼接至当前行行尾 */
Queue_Cat( &row_ptr->string, &tmp_row->string );
/* 将下一行的行尾字符数据转移至当前行 */
row_ptr->last_char = tmp_row->last_char;
/* 销毁下一行的文本 */
Queue_Destroy( &tmp_row->string );
Queue_Delete( &layer->rows_data, start_pos.y+1 );
/* 更新当前行的总字符数 */
cols = Queue_GetTotal( &row_ptr->string );
/* 更新总行数 */
rows = Queue_GetTotal( &layer->rows_data );
/* 更新当前行的尺寸 */
TextLayer_Update_RowSize( layer, start_pos.y );
continue;
}
char_ptr = Queue_Get( &row_ptr->string, start_pos.x );
if( !char_ptr ) {
continue;
}
TextLayer_Clear( layer, pixel_pos, row_ptr->max_size.h, char_ptr );
pixel_pos.x += char_ptr->bitmap->advance.x;
/* 将该字从源文本中移除 */
TextLayer_Text_DeleteChar( layer, char_ptr, left_or_right );
/* 该字在这行的字体位图也需要删除 */
cols = Queue_GetTotal( &row_ptr->string );
Queue_DeletePointer( &row_ptr->string, start_pos.x );
cols = Queue_GetTotal( &row_ptr->string );
char_ptr = Queue_Get( &row_ptr->string, start_pos.x );
cols = Queue_GetTotal( &row_ptr->string );
}
/* 更新当前行的尺寸 */
TextLayer_Update_RowSize( layer, start_pos.y );
return 0;
}
