LCUI_API LCUI_FontBMP*
FontLIB_AddFontBMP( wchar_t char_code, int font_id,
int pixel_size, LCUI_FontBMP *fontbmp )
{
LCUI_FontBMP *bmp_cache;
LCUI_RBTree *tree_font, *tree_bmp;
if( !fontlib.is_inited ) {
return NULL;
}
/* 获取字符的字体信息集 */
tree_font = (LCUI_RBTree*)
RBTree_GetData( &fontlib.bitmap_cache, char_code );
if( !tree_font ) {
tree_font = (LCUI_RBTree*)malloc( sizeof(LCUI_RBTree) );
if( !tree_font ) {
return NULL;
}
RBTree_Init( tree_font );
RBTree_SetDataNeedFree( tree_font, TRUE );
RBTree_OnDestroy( tree_font, FontLIB_DestroyTreeNode );
RBTree_Insert( &fontlib.bitmap_cache, char_code, tree_font );
}
/* 当字体ID不大于0时，使用内置字体 */
if( font_id <= 0 ) {
font_id = fontlib.incore_font->id;
}
/* 获取相应字体样式标识号的字体位图库 */
tree_bmp = (LCUI_RBTree*)RBTree_GetData( tree_font, font_id );
if( !tree_bmp ) {
tree_bmp = (LCUI_RBTree*)malloc( sizeof(LCUI_RBTree) );
if( !tree_bmp ) {
return NULL;
}
RBTree_Init( tree_bmp );
RBTree_OnDestroy( tree_bmp, FontLIB_DestroyFontBitmap );
RBTree_SetDataNeedFree( tree_bmp, TRUE );
RBTree_Insert( tree_font, font_id, tree_bmp );
}
/* 在字体位图库中获取指定像素大小的字体位图 */
bmp_cache = (LCUI_FontBMP*)RBTree_GetData( tree_bmp, pixel_size );
if( !bmp_cache ) {
bmp_cache = (LCUI_FontBMP*)malloc( sizeof(LCUI_FontBMP) );
if( !bmp_cache ) {
return NULL;
}
RBTree_Insert( tree_bmp, pixel_size, bmp_cache );
}
/* 拷贝数据至该空间内 */
memcpy( bmp_cache, fontbmp, sizeof(LCUI_FontBMP) );
return bmp_cache;
}
/** 添加已被按下的按键 */
void LCUIKeyboard_HitKey(int key_code)
{
clock_t ct;
KeyStateNode node;
LCUIMutex_Lock(&self.mutex);
ct = clock() * 1000 / CLOCKS_PER_SEC;
node = RBTree_GetData(&self.state_tree, key_code);
if (!node) {
node = NEW(KeyStateNodeRec, 1);
node->interval_time = -1;
node->hit_time = ct;
node->state = LCUI_KSTATE_PRESSED;
RBTree_Insert(&self.state_tree, key_code, node);
LCUIMutex_Unlock(&self.mutex);
return;
}
if (node->state == LCUI_KSTATE_RELEASE) {
node->state = LCUI_KSTATE_PRESSED;
/* 记录与上次此键被按下时的时间间隔 */
node->interval_time = ct - node->hit_time;
/* 记录本次此键被按下时的时间 */
node->hit_time = ct;
}
LCUIMutex_Unlock(&self.mutex);
}
/** 获取指定字体ID的字体信息 */
static LCUI_FontInfo* FontLIB_GetFont( int font_id )
{
if( !fontlib.is_inited ) {
return NULL;
}
return (LCUI_FontInfo*)RBTree_GetData( &fontlib.info_cache, font_id );
}
/** 标记指定键值的按键已释放 */
void LCUIKeyboard_ReleaseKey(int key_code)
{
KeyStateNode node;
LCUIMutex_Lock(&self.mutex);
node = RBTree_GetData(&self.state_tree, key_code);
if (node) {
node->state = LCUI_KSTATE_RELEASE;
}
LCUIMutex_Unlock(&self.mutex);
}
/** 检测指定键值的按键是否处于按下状态 */
LCUI_BOOL LCUIKeyboard_IsHit(int key_code)
{
KeyStateNode node;
LCUIMutex_Lock(&self.mutex);
node = RBTree_GetData(&self.state_tree, key_code);
LCUIMutex_Unlock(&self.mutex);
if (node && node->state == LCUI_KSTATE_PRESSED) {
return TRUE;
}
return FALSE;
}
LCUI_API LCUI_FontBMP*
FontLIB_GetFontBMP( wchar_t char_code, int font_id, int pixel_size )
{
LCUI_RBTree *tree;
if( !fontlib.is_inited ) {
return NULL;
}
tree = (LCUI_RBTree*)RBTree_GetData( &fontlib.bitmap_cache, char_code );
if( !tree ) {
return NULL;
}
if( font_id <= 0 ) {
font_id = fontlib.incore_font->id;
}
tree = (LCUI_RBTree*)RBTree_GetData( tree, font_id );
if( !tree ) {
return NULL;
}
return (LCUI_FontBMP*)RBTree_GetData( tree, pixel_size );
}
/**
* 检测指定键值的按键是否按了两次
* @param key_code 要检测的按键的键值
* @param interval_time 该按键倒数第二次按下时的时间与当前时间的最大间隔
*/
LCUI_BOOL LCUIKeyboard_IsDoubleHit(int key_code, int interval_time)
{
clock_t ct;
KeyStateNode node;
/* 计算当前时间（单位：毫秒） */
ct = clock() * 1000 / CLOCKS_PER_SEC;
LCUIMutex_Lock(&self.mutex);
node = RBTree_GetData(&self.state_tree, key_code);
LCUIMutex_Unlock(&self.mutex);
if (!node) {
return FALSE;
}
/* 间隔时间为-1，说明该键是新记录的 */
if (node->interval_time == -1) {
return FALSE;
}
ct -= node->hit_time - node->interval_time;
/* 判断按键被按下两次时是否在距当前 interval_time 毫秒的时间内发生 */
if (ct <= interval_time) {
return TRUE;
}
return FALSE;
}
