static void
Update_Label(LCUI_Widget *widget)
/* 功能：更新label部件 */
{
int mode;
LCUI_Size max;
LCUI_Label *label;
label = Get_Widget_PrivData( widget );
if(!Graph_Valid(&widget->background_image)) {
mode = GRAPH_MIX_FLAG_REPLACE; /* 替换模式 */
} else {
mode = GRAPH_MIX_FLAG_OVERLAY; /* 叠加模式 */
}
/* 先绘制文本位图，在绘制前它会更新位图尺寸 */
TextLayer_Draw( widget, &label->layer, mode );
/* 获取尺寸 */
max = TextLayer_Get_Size( &label->layer );
if( widget->dock == DOCK_TYPE_NONE && label->auto_size
&& Size_Cmp( max, widget->size ) != 0 ) {
/* 如果开启了自动调整大小,并且尺寸有改变 */
Resize_Widget(widget, max );
Refresh_Widget(widget);
}
}
static int
TextBox_ScrollBar_Update_Pos( LCUI_Widget *widget )
/* 更新滚动条的位置 */
{
static ScrollBar_Data scrollbar_data;
static LCUI_Pos area_pos;
static LCUI_Size layer_size, area_size;
static LCUI_Widget *scrollbar[2];
static LCUI_TextLayer *layer;
area_size = Get_Container_Size( widget );
scrollbar[0] = TextBox_Get_Scrollbar( widget, 0 );
scrollbar[1] = TextBox_Get_Scrollbar( widget, 1 );
if( scrollbar[0]->visible ) {
area_size.w -= Get_Widget_Width( scrollbar[0] );
}
if( scrollbar[1]->visible ) {
area_size.h -= Get_Widget_Height( scrollbar[1] );
}
if( area_size.h <= 0 || area_size.w <= 0 ) {
return -1;
}
layer = TextBox_Get_TextLayer( widget );
if( !layer->enable_multiline ) {
return 1;
}
layer_size = TextLayer_Get_Size( layer );
if( layer_size.h <= 0 || layer_size.w <= 0 ) {
return -2;
}
area_pos = TextBox_ViewArea_Get_Pos( widget );
ScrollBar_Set_MaxNum( scrollbar[0], layer_size.h - area_size.h );
if( area_pos.y + area_size.h > layer_size.h ) {
area_pos.y = layer_size.h - area_size.h;
}
if( area_pos.x + area_size.w > layer_size.w ) {
area_pos.x = layer_size.w - area_size.w;
}
if( area_pos.y < 0 ) {
area_pos.y = 0;
}
if( area_pos.x < 0 ) {
area_pos.x = 0;
}
ScrollBar_Set_CurrentNum( scrollbar[0], area_pos.y );
scrollbar_data = ScrollBar_Get_Data( scrollbar[0] );
TextBox_VertScroll_TextLayer( scrollbar_data, widget );
ScrollBar_Set_MaxNum( scrollbar[1], layer_size.w - area_size.w );
ScrollBar_Set_CurrentNum( scrollbar[1], area_pos.x );
scrollbar_data = ScrollBar_Get_Data( scrollbar[1] );
TextBox_HoriScroll_TextLayer( scrollbar_data, widget );
return 0;
}
static void Update_Label(LCUI_Widget *widget)
/* 功能：更新label部件 */
{
int mode;
LCUI_Size max;
LCUI_TextLayer *layer;
layer = Get_Widget_PrivData( widget );
max = TextLayer_Get_Size( layer );
if( widget->auto_size && Size_Cmp( max, widget->size ) != 0 ) {
/* 如果开启了自动调整大小,并且尺寸有改变 */
Resize_Widget(widget, max );
Refresh_Widget(widget);
return;
}
if(!Graph_Valid(&widget->background_image)) {
mode = GRAPH_MIX_FLAG_REPLACE; /* 替换模式 */
} else {
mode = GRAPH_MIX_FLAG_OVERLAY; /* 叠加模式 */
}
layer = Get_Widget_PrivData( widget );
TextLayer_Draw( widget, layer, mode );
}
int
TextBox_ViewArea_Update( LCUI_Widget *widget )
/* 更新文本框的文本显示区域 */
{
static int cursor_h;
static ScrollBar_Data scrollbar_data;
static LCUI_Pos cursor_pos, area_pos;
static LCUI_Size layer_size, area_size;
static LCUI_Widget *scrollbar[2];
static LCUI_TextLayer *layer;
//printf("TextBox_ViewArea_Update(): enter\n");
/* 获取显示区域的尺寸 */
area_size = Get_Container_Size( widget );
/* 获取滚动条 */
scrollbar[0] = TextBox_Get_Scrollbar( widget, 0 );
scrollbar[1] = TextBox_Get_Scrollbar( widget, 1 );
/* 如果滚动条可见，那么区域尺寸就需要减去滚动条占用的尺寸 */
if( scrollbar[0]->visible ) {
area_size.w -= Get_Widget_Width( scrollbar[0] );
}
if( scrollbar[1]->visible ) {
area_size.h -= Get_Widget_Height( scrollbar[1] );
}
if( area_size.h <= 0 || area_size.w <= 0 ) {
return -1;
}
layer = TextBox_Get_TextLayer( widget );
layer_size = TextLayer_Get_Size( layer );
if( layer_size.h <= 0 || layer_size.w <= 0 ) {
return -2;
}
/* 获取显示区域的位置 */
area_pos = TextBox_ViewArea_Get_Pos( widget );
/* 获取光标的坐标 */
cursor_pos = TextLayer_Get_Cursor_FixedPixelPos( layer );
/* 获取当前行的最大高度作为光标的高度 */
cursor_h = TextLayer_CurRow_Get_MaxHeight( layer );
/* 设定滚动条的数据中的最大值 */
ScrollBar_Set_MaxNum( scrollbar[0], layer_size.h - area_size.h );
DEBUG_MSG("cursor_pos: %d,%d\n", cursor_pos.x, cursor_pos.y);
DEBUG_MSG("area_rect: %d,%d,%d,%d\n",
area_pos.x, area_pos.y,area_size.w, area_size.h );
DEBUG_MSG("layer_size: %d,%d\n", layer_size.w, layer_size.h);
/* 检测光标Y轴坐标是否超出显示区域的范围 */
if( cursor_pos.y < area_pos.y ) {
area_pos.y = cursor_pos.y;
}
if(cursor_pos.y + cursor_h > area_pos.y + area_size.h ) {
area_pos.y = cursor_pos.y + cursor_h - area_size.h;
}
/* 如果显示区域在Y轴上超过文本图层的范围 */
if( area_pos.y + area_size.h > layer_size.h ) {
area_pos.y = layer_size.h - area_size.h;
}
if( area_pos.y < 0 ) {
area_pos.y = 0;
}
/* 设定滚动条的数据中的当前值 */
ScrollBar_Set_CurrentNum( scrollbar[0], area_pos.y );
/* 获取滚动条的数据，供滚动文本层利用 */
scrollbar_data = ScrollBar_Get_Data( scrollbar[0] );
//printf("scrollbar_data: size: %d / %d, num: %d / %d\n",
//scrollbar_data.current_size, scrollbar_data.max_size,
//scrollbar_data.current_num, scrollbar_data.max_num);
/* 根据数据，滚动文本图层至响应的位置，也就是移动文本显示区域 */
TextBox_VertScroll_TextLayer( scrollbar_data, widget );
/* 设定滚动条的数据中的最大值 */
ScrollBar_Set_MaxNum( scrollbar[1], layer_size.w - area_size.w );
if( cursor_pos.x < area_pos.x ) {
area_pos.x = cursor_pos.x;
}
if(cursor_pos.x +5 > area_pos.x + area_size.w ) {
area_pos.x = cursor_pos.x+5 - area_size.w;
}
if( area_pos.x + area_size.w > layer_size.w ) {
area_pos.x = layer_size.w - area_size.w;
}
if( area_pos.x < 0 ) {
area_pos.x = 0;
}
/* 设定滚动条的数据中的当前值 */
ScrollBar_Set_CurrentNum( scrollbar[1], area_pos.x );
/* 获取滚动条的数据，供滚动文本层利用 */
scrollbar_data = ScrollBar_Get_Data( scrollbar[1] );
//printf("scrollbar_data: size: %d / %d, num: %d / %d\n",
//scrollbar_data.current_size, scrollbar_data.max_size,
//scrollbar_data.current_num, scrollbar_data.max_num);
TextBox_HoriScroll_TextLayer( scrollbar_data, widget );
//printf("TextBox_ViewArea_Update(): quit\n");
return 0;
}
static void
TextBox_ScrollBar_Update_Size( LCUI_Widget *widget )
/* 更新滚动条的长度 */
{
int tmp;
char size_str[15];
LCUI_Size area_size, layer_size;
LCUI_Widget *scrollbar[2], *label;
LCUI_TextLayer *layer;
label = TextBox_Get_Label( widget );
/* 获取文本图层 */
layer = TextBox_Get_TextLayer( widget );
/* 获取文本图层和文本框区域的尺寸 */
layer_size = TextLayer_Get_Size( layer );
area_size = Get_Container_Size( widget );
/* 获取纵向和横向滚动条 */
scrollbar[0] = TextBox_Get_Scrollbar( widget, 0 );
scrollbar[1] = TextBox_Get_Scrollbar( widget, 1 );
/* 如果文本图层高度超过显示区域 */
if( layer->enable_multiline && area_size.h > 0
&& layer_size.h > area_size.h ) {
tmp = area_size.w - Get_Widget_Width( scrollbar[0] );
snprintf( size_str, sizeof(size_str)-1, "%dpx", tmp );
Set_Widget_Size( label, size_str, NULL );
/* 修改滚动条中记录的最大值和当前值，让滚动条在更新后有相应的长度 */
ScrollBar_Set_MaxSize( scrollbar[0], layer_size.h );
ScrollBar_Set_CurrentSize( scrollbar[0], area_size.h );
Show_Widget( scrollbar[0] );
/* 如果横向滚动条可见 */
if( scrollbar[1]->visible ) {
tmp = area_size.h - Get_Widget_Height( scrollbar[1] );
snprintf( size_str, sizeof(size_str)-1, "%dpx", tmp );
Set_Widget_Size( scrollbar[0], NULL, size_str );
} else {
Set_Widget_Size( scrollbar[0], NULL, "100%" );
}
} else {
/* 不需要显示滚动条 */
Hide_Widget( scrollbar[0] );
Set_Widget_Size( label, "100%", NULL );
}
/* 和上面的处理基本一样，这个是处理横向滚动条 */
if( layer->enable_multiline &&
area_size.w > 0 && layer_size.w > area_size.w ) {
tmp = area_size.h - Get_Widget_Height( scrollbar[1] );
snprintf( size_str, sizeof(size_str)-1, "%dpx", tmp );
Set_Widget_Size( label, NULL, size_str );
ScrollBar_Set_MaxSize( scrollbar[1], layer_size.w );
ScrollBar_Set_CurrentSize( scrollbar[1], area_size.w );
Show_Widget( scrollbar[1] );
if( scrollbar[0]->visible ) {
tmp = area_size.w - Get_Widget_Width( scrollbar[0] );
snprintf( size_str, sizeof(size_str)-1, "%dpx", tmp );
Set_Widget_Size( scrollbar[1], size_str, NULL );
} else {
Set_Widget_Size( scrollbar[1], "100%", NULL );
}
} else {
Set_Widget_Size( label, NULL, "100%" );
Hide_Widget( scrollbar[1] );
}
}
