void rtgui_edit_adjust_scroll(rtgui_scrollbar_t *bar)
{
struct rtgui_edit *edit;
RT_ASSERT(bar != RT_NULL);
if(bar->WIDGET_GROUP != RT_NULL)
{
rtgui_rect_t rect;
rt_uint32_t _left=0,_top=0,_width=RTGUI_DEFAULT_SB_WIDTH,_len=0;
edit = bar->WIDGET_GROUP;
rtgui_widget_get_rect(edit, &rect);
rtgui_widget_rect_to_device(edit,&rect);
if(bar->orient==RTGUI_HORIZONTAL)
{
if(RTGUI_WIDGET_IS_HIDE(edit->hscroll))
{
if(edit->max_rows > edit->row_per_page)
{
RTGUI_WIDGET_SHOW(edit->hscroll);
rtgui_scrollbar_set_line_step(edit->hscroll, 1);
rtgui_scrollbar_set_page_step(edit->hscroll, edit->row_per_page);
rtgui_scrollbar_set_range(edit->hscroll, edit->max_rows);
}
else
RTGUI_WIDGET_HIDE(edit->vscroll);
rtgui_widget_update_clip(RTGUI_WIDGET(edit));
}
else
{
_left = RTGUI_WIDGET_BORDER_SIZE(edit);
_top = rtgui_rect_height(rect)-RTGUI_WIDGET_BORDER_SIZE(edit)-_width;
_len = rtgui_rect_width(rect)-RTGUI_WIDGET_BORDER_SIZE(edit)*2;
if(!RTGUI_WIDGET_IS_HIDE(edit->vscroll))
_len -= _width;
rect.x1 += _left;
rect.y1 += _top;
rect.x2 = rect.x1+_len;
rect.y2 = rect.y1+_width;
}
}
else if(bar->orient==RTGUI_VERTICAL)
{
_left = rtgui_rect_width(rect)-RTGUI_WIDGET_BORDER_SIZE(edit)-_width;
_top = RTGUI_WIDGET_BORDER_SIZE(edit);
_len = rtgui_rect_height(rect)-RTGUI_WIDGET_BORDER_SIZE(edit)*2;
if(!RTGUI_WIDGET_IS_HIDE(edit->hscroll))
_len -= _width;
rect.x1 += _left;
rect.y1 += _top;
rect.x2 = rect.x1+_width;
rect.y2 = rect.y1+_len;
}
rtgui_widget_set_rect(bar,&rect);
}
}
void rtgui_combo_add_string(rtgui_combo_t* cbo,const char* string)
{
if(cbo->lbox != RT_NULL)
{
rtgui_listbox_item_t item;
rtgui_rect_t rect;
rt_uint32_t h,count;
item.name = (char*)string;
item.image = RT_NULL;
rtgui_listbox_add_item(cbo->lbox, &item, 1);
rtgui_widget_get_rect(cbo->lbox, &rect);
count = rtgui_listbox_get_count(cbo->lbox);
h = RTGUI_WIDGET_BORDER_SIZE(cbo->lbox)*2+(RTGUI_SEL_H + 2)*count;
if(h>RC_H(rect))
{
if(cbo->lbox->item_per_page<5)/* change when less than five */
{
rect.y2 = rect.y1+h;
rtgui_widget_rect_to_device(cbo->lbox,&rect);
rtgui_widget_set_rect(cbo->lbox,&rect);/* update listbox extent */
cbo->lbox->item_per_page = RC_H(rect) / (RTGUI_SEL_H+2);
if(cbo->lbox->scroll != RT_NULL)/* update scrollbar extent */
{
rtgui_widget_get_rect(cbo->lbox->scroll, &rect);
rect.y2 = rect.y1+h-RTGUI_WIDGET_BORDER_SIZE(cbo->lbox)*2;
rtgui_widget_rect_to_device(cbo->lbox->scroll,&rect);
rtgui_widget_set_rect(cbo->lbox->scroll,&rect);
if(cbo->lbox->item_count > cbo->lbox->item_per_page)
{
RTGUI_WIDGET_SHOW(cbo->lbox->scroll);
rtgui_scrollbar_set_line_step(cbo->lbox->scroll, 1);
rtgui_scrollbar_set_page_step(cbo->lbox->scroll, cbo->lbox->item_per_page);
rtgui_scrollbar_set_range(cbo->lbox->scroll, cbo->lbox->item_count);
}
else
{
RTGUI_WIDGET_HIDE(cbo->lbox->scroll);
}
rtgui_widget_update_clip(cbo->lbox);
}
}
}
}
}
rtgui_view_t *demo_gui_scrollbar(rtgui_view_t* parent_view)
{
rtgui_view_t *view;
rtgui_scrollbar_t* hbar;
rtgui_scrollbar_t* vbar;
/* create a demo view */
view = demo_view_create(parent_view, "ScrollBar View");
rtgui_label_create(view, "horizontal bar:", 5, 40, 150, 20);
hbar = rtgui_scrollbar_create(view, 5, 65, 20, 100, RTGUI_HORIZONTAL);
rtgui_scrollbar_set_range(hbar, 10);
rtgui_scrollbar_set_page_step(hbar, 5);
rtgui_scrollbar_set_line_step(hbar, 1);
rtgui_label_create(view, "vertical bar:", 5, 90, 150, 20);
vbar = rtgui_scrollbar_create(view, 10, 115, 20, 80, RTGUI_VERTICAL);
rtgui_scrollbar_set_range(vbar, 5);
rtgui_scrollbar_set_page_step(vbar, 3);
rtgui_scrollbar_set_line_step(vbar, 1);
return view;
}
rtgui_container_t *demo_view_scrollbar(void)
{
rtgui_container_t *container;
rtgui_rect_t rect;
rtgui_label_t *label;
rtgui_scrollbar_t *hbar;
rtgui_scrollbar_t *vbar;
/* create a demo container */
container = demo_view("ScrollBar View");
/* get demo container rect */
demo_view_get_rect(container, &rect);
label = rtgui_label_create("horizontal bar:");
rtgui_container_add_child(container, RTGUI_WIDGET(label));
rect.x1 += 5;
rect.x2 -= 5;
rect.y1 += 5;
rect.y2 = rect.y1 + 18;
rtgui_widget_set_rect(RTGUI_WIDGET(label), &rect);
rect.y1 += 20;
rect.y2 = rect.y1 + 18;
hbar = rtgui_scrollbar_create(RTGUI_HORIZONTAL, &rect);
rtgui_container_add_child(container, RTGUI_WIDGET(hbar));
/* get demo container rect */
demo_view_get_rect(container, &rect);
label = rtgui_label_create("vertical bar:");
rtgui_container_add_child(container, RTGUI_WIDGET(label));
rect.x1 += 5;
rect.x2 -= 5;
rect.y1 += 45;
rect.y2 = rect.y1 + 18;
rtgui_widget_set_rect(RTGUI_WIDGET(label), &rect);
rect.x1 += 110;
rect.x2 = rect.x1 + 20;
rect.y1 += 18 + 5;
rect.y2 = rect.y1 + 150;
vbar = rtgui_scrollbar_create(RTGUI_VERTICAL, &rect);
rtgui_container_add_child(container, RTGUI_WIDGET(vbar));
rtgui_scrollbar_set_line_step(vbar, 1);
// RTGUI_WIDGET_DISABLE(vbar);
return container;
}
static void _rtgui_scrollbar_constructor(rtgui_scrollbar_t *bar)
{
struct rtgui_rect rect = {0, 0, RTGUI_DEFAULT_SB_WIDTH, RTGUI_DEFAULT_SB_HEIGHT};
/* set event handler */
rtgui_widget_set_event_handler(RTGUI_WIDGET(bar), rtgui_scrollbar_event_handler);
rtgui_scrollbar_set_range(bar, 0, 100);
rtgui_scrollbar_set_page_step(bar, 20);
rtgui_scrollbar_set_line_step(bar, 10);
bar->status = 0;
bar->thumb_position = 0;
bar->thumb_size = 16;
bar->on_scroll = RT_NULL;
bar->orient = RTGUI_HORIZONTAL;
rtgui_widget_set_rect(RTGUI_WIDGET(bar), &rect);
/* set gc */
RTGUI_WIDGET_TEXTALIGN(RTGUI_WIDGET(bar)) = RTGUI_ALIGN_CENTER_HORIZONTAL | RTGUI_ALIGN_CENTER_VERTICAL;
}
void rtgui_fileview_set_directory(rtgui_fileview_t* fview, const char* directory)
{
char fullpath[256];
rtgui_fileview_item_t *item;
fview->first_item = 0;
fview->item_count = 0;
/* clear file information */
rtgui_fileview_clear(fview);
if(directory != RT_NULL)
{
DIR* dir;
struct stat s;
rt_uint32_t i;
struct dirent* dirent;
fview->item_count = 0;
/* open directory */
dir = opendir(directory);
if(dir == RT_NULL) return;
/* set current directory */
if(fview->current_dir != RT_NULL)
{
rt_free(fview->current_dir);
fview->current_dir = RT_NULL;
}
fview->current_dir = rt_strdup(directory);
if(fview->dlg != RT_NULL)
{
if(fview->dlg->path != RT_NULL)
rt_free(fview->dlg->path);
fview->dlg->path = rt_strdup(fview->current_dir);
if(fview->dlg->tbox_path != RT_NULL)
{
rtgui_textbox_set_value(fview->dlg->tbox_path,fview->dlg->path);
rtgui_textbox_ondraw(fview->dlg->tbox_path);
}
}
do
{
dirent = readdir(dir);
if(dirent == RT_NULL) break;
fview->item_count ++;
}
while(dirent != RT_NULL);
closedir(dir);
if((fview->item_count > fview->item_per_page) && fview->sbar!=RT_NULL)
{
RTGUI_WIDGET_SHOW(fview->sbar);
rtgui_scrollbar_set_line_step(fview->sbar,1);
rtgui_scrollbar_set_page_step(fview->sbar, fview->item_per_page);
rtgui_scrollbar_set_range(fview->sbar, fview->item_count);
}
else
{
RTGUI_WIDGET_HIDE(fview->sbar);
}
rtgui_widget_update_clip(fview);
/* apply to memory for store all items. */
fview->items = (rtgui_fileview_item_t*) rt_malloc(sizeof(rtgui_fileview_item_t) * fview->item_count);
if(fview->items == RT_NULL) goto __return; /* under the folder has not sub files. */
/* reopen directory */
dir = opendir(directory);
if(dir == RT_NULL) goto __return;
for(i=0; i < fview->item_count; i ++)
{
dirent = readdir(dir);
if(dirent == RT_NULL) break;
item = &(fview->items[i]);
item->name = rt_strdup(dirent->d_name);
rt_memset(&s, 0, sizeof(struct stat));
/* get fullpath of file */
dfs_get_fullpath(fullpath, directory, dirent->d_name);
stat(fullpath, &s);
if(s.st_mode & S_IFDIR)
{
item->type = RTGUI_FITEM_DIR;
item->size = 0;
}
else
{
item->type = RTGUI_FITEM_FILE;
item->size = s.st_size;
}
}
closedir(dir);
}
fview->now_item = 0;
__return:
/* update view */
rtgui_widget_update(fview);
}
/* set edit text */
void rtgui_edit_set_text(struct rtgui_edit* edit, const char* text)
{
const char *begin, *ptr;
int hscroll_flag=0;
int vscroll_flag=0;
RT_ASSERT(edit != RT_NULL);
while(edit->max_rows > 0)
rtgui_edit_delete_line(edit, edit->head);
edit->max_rows = 0;
begin = text;
for(ptr=begin; *ptr != '\0'; ptr++)
{
if(*ptr == 0x0A)
{ /* unix style */
rtgui_edit_append_line(edit, begin);
begin = ptr+1;
}
else if(*ptr == 0x0D && *(ptr+1) == 0x0A)
{ /* windows style */
rtgui_edit_append_line(edit, begin);
begin = ptr+2;
}
}
if(*ptr == '\0')
{
if(begin < ptr)
rtgui_edit_append_line(edit, begin);
}
#ifdef RTGUI_EDIT_USING_SCROLL
if(edit->hscroll != RT_NULL)
{
if(edit->max_cols > edit->col_per_page)
{
RTGUI_WIDGET_SHOW(edit->hscroll);
rtgui_scrollbar_set_line_step(edit->hscroll, 1);
rtgui_scrollbar_set_page_step(edit->hscroll, edit->col_per_page);
rtgui_scrollbar_set_range(edit->hscroll, edit->max_cols);
hscroll_flag = 1;
}
else
{
RTGUI_WIDGET_HIDE(edit->hscroll);
}
}
if(edit->vscroll != RT_NULL)
{
if(edit->max_rows > edit->row_per_page)
{
RTGUI_WIDGET_SHOW(edit->vscroll);
rtgui_scrollbar_set_line_step(edit->vscroll, 1);
rtgui_scrollbar_set_page_step(edit->vscroll, edit->row_per_page);
rtgui_scrollbar_set_range(edit->vscroll, edit->max_rows);
vscroll_flag = 1;
}
else
{
RTGUI_WIDGET_HIDE(edit->vscroll);
}
}
if(edit->hscroll != RT_NULL && !RTGUI_WIDGET_IS_HIDE(edit->hscroll))
{
rtgui_edit_adjust_scroll(edit->hscroll);
}
if(edit->vscroll != RT_NULL && !RTGUI_WIDGET_IS_HIDE(edit->vscroll))
{
rtgui_edit_adjust_scroll(edit->vscroll);
}
#endif
if(hscroll_flag || vscroll_flag)
{
rtgui_widget_update_clip(RTGUI_WIDGET(edit));
}
}
