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rt-thread-official/rtgui/widgets/filelist_view.c

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/*
* File : filelist_view.c
* This file is part of RTGUI in RT-Thread RTOS
* COPYRIGHT (C) 2010, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2010-01-06 Bernard first version
*/
#include <rtgui/rtgui_object.h>
#include <rtgui/rtgui_system.h>
#include <rtgui/rtgui_theme.h>
#include <rtgui/list.h>
#include <rtgui/image.h>
#include <rtgui/widgets/view.h>
#include <rtgui/widgets/workbench.h>
#include <rtgui/widgets/filelist_view.h>
#ifdef _WIN32
#include <io.h>
#include <dirent.h>
#include <sys/stat.h>
#define PATH_SEPARATOR '\\'
#define stat _stat
#else
#include <dfs_posix.h>
#define PATH_SEPARATOR '/'
#endif
#include <string.h>
#define RTGUI_FILELIST_MARGIN 5
const static char * file_xpm[] = {
"16 16 21 1",
" c None",
". c #999999",
"+ c #818181",
"@ c #FFFFFF",
"# c #ECECEC",
"$ c #EAEAEA",
"% c #EBEBEB",
"& c #EDEDED",
"* c #F0F0F0",
"= c #C4C4C4",
"- c #C5C5C5",
"; c #C6C6C6",
"> c #C7C7C7",
", c #EEEEEE",
"' c #EDEDE5",
") c #EDEDE6",
"! c #EFEFEF",
"~ c #C8C8C8",
"{ c #F1F1F1",
"] c #F2F2F2",
"^ c #959595",
".++++++++++++ ",
"+@@@@@@@@@@@@+ ",
"+@#$$%%%##&*@+ ",
"+@$=--;;;;>*@+ ",
"+@$%%###&&,*@+ ",
"+@%-;;;;;;>*@+ ",
"+@%%##&&'#,*@+ ",
"+@%;;;;,,),*@+ ",
"+@##&&,,!!!*@+ ",
"+@#;;;>>~~~*@+ ",
"+@#&,,!!*{{{@+ ",
"+@&;>>~~~{{]@+ ",
"+@&&,!!**{]]@+ ",
"+@@@@@@@@@@@@+ ",
"^++++++++++++^ ",
" "};
const static char * folder_xpm[] = {
"16 16 121 2",
" c None",
". c #D9B434",
"+ c #E1C25E",
"@ c #E2C360",
"# c #E2C35F",
"$ c #DBB63C",
"% c #DAB336",
"& c #FEFEFD",
"* c #FFFFFE",
"= c #FFFEFE",
"- c #FFFEFD",
"; c #FBF7EA",
"> c #E4C76B",
", c #E3C76B",
"' c #E6CD79",
") c #E5CA74",
"! c #DAAF35",
"~ c #FEFCF7",
"{ c #F8E48E",
"] c #F5DE91",
"^ c #F5E09F",
"/ c #F6E1AC",
"( c #FEFBEF",
"_ c #FEFDF4",
": c #FEFCF3",
"< c #FEFCF1",
"[ c #FEFBEE",
"} c #FFFDFA",
"| c #DAAF36",
"1 c #DAAA36",
"2 c #FDFAF1",
"3 c #F5DE94",
"4 c #F4DC93",
"5 c #F2D581",
"6 c #EDCA6A",
"7 c #EACB6C",
"8 c #EFD385",
"9 c #EFD280",
"0 c #EFD07A",
"a c #EECF76",
"b c #EECF72",
"c c #FBF7E9",
"d c #DAAE34",
"e c #DAAB35",
"f c #FBF6E8",
"g c #EFD494",
"h c #EECE88",
"i c #E9C173",
"j c #F6E9C9",
"k c #FEFCF2",
"l c #FEFCF0",
"m c #DAAB36",
"n c #DAA637",
"o c #FFFDF8",
"p c #FFFDF6",
"q c #FFFCF5",
"r c #FCF6D8",
"s c #F8E694",
"t c #F7E385",
"u c #F6DF76",
"v c #F5DB68",
"w c #F4D85C",
"x c #FCF4D7",
"y c #DAA435",
"z c #DAA136",
"A c #FEFCF6",
"B c #FCF2C8",
"C c #FBEFB9",
"D c #FAECAC",
"E c #F9E89C",
"F c #F7E38B",
"G c #F6E07C",
"H c #F6DC6C",
"I c #F5D95D",
"J c #F4D64F",
"K c #F3D344",
"L c #FCF3D0",
"M c #DA9F35",
"N c #DA9A36",
"O c #FDFAF2",
"P c #FAEDB3",
"Q c #F9E9A4",
"R c #F8E695",
"S c #F7E285",
"T c #F6DE76",
"U c #F5DB65",
"V c #F4D757",
"W c #F3D449",
"X c #F2D13B",
"Y c #F1CE30",
"Z c #FBF2CC",
"` c #DA9835",
" . c #DA9435",
".. c #FEFAEF",
"+. c #F9E9A1",
"@. c #F8E591",
"#. c #F7E181",
"$. c #F6DE72",
"%. c #F5DA63",
"&. c #F4D754",
"*. c #F3D347",
"=. c #F2D039",
"-. c #F1CD2E",
";. c #F0CB26",
">. c #FBF2CA",
",. c #D98E33",
"'. c #FAF0DC",
"). c #F4DDA7",
"!. c #F4DB9E",
"~. c #F3DA96",
"{. c #F3D88E",
"]. c #F3D786",
"^. c #F2D47F",
"/. c #F2D379",
"(. c #F1D272",
"_. c #F1D06C",
":. c #F1CF69",
"<. c #F8EAC2",
"[. c #D8882D",
"}. c #D8872D",
"|. c #D8862C",
" ",
" ",
" ",
" . + @ @ @ # $ ",
" % & * = - * ; > , , , ' ) ",
" ! ~ { ] ^ / ( _ : < ( [ } | ",
" 1 2 3 4 5 6 7 8 9 0 a b c d ",
" e f g h i j k : k l ( [ * m ",
" n * o p q : r s t u v w x y ",
" z A B C D E F G H I J K L M ",
" N O P Q R S T U V W X Y Z ` ",
" ...+.@.#.$.%.&.*.=.-.;.>. . ",
" ,.'.).!.~.{.].^./.(._.:.<.,. ",
" [.}.[.[.[.[.[.[.[.[.}.[.|. ",
" ",
" "};
/* image for file and folder */
static rtgui_image_t *file_image, *folder_image;
static void _rtgui_filelist_view_constructor(struct rtgui_filelist_view *view)
{
/* default rect */
struct rtgui_rect rect = {0, 0, 200, 200};
/* set default widget rect and set event handler */
rtgui_widget_set_event_handler(RTGUI_WIDGET(view), rtgui_filelist_view_event_handler);
rtgui_widget_set_rect(RTGUI_WIDGET(view), &rect);
RTGUI_WIDGET(view)->flag |= RTGUI_WIDGET_FLAG_FOCUSABLE;
view->current_item = 0;
view->items_count = 0;
view->page_items = 0;
view->current_directory = RT_NULL;
view->pattern = RT_NULL;
RTGUI_WIDGET_BACKGROUND(RTGUI_WIDGET(view)) = white;
RTGUI_WIDGET_TEXTALIGN(RTGUI_WIDGET(view)) = RTGUI_ALIGN_CENTER_VERTICAL;
file_image = rtgui_image_create_from_mem("xpm",
(rt_uint8_t*)file_xpm, sizeof(file_xpm), RT_TRUE);
folder_image = rtgui_image_create_from_mem("xpm",
(rt_uint8_t*)folder_xpm, sizeof(folder_xpm), RT_TRUE);
}
rtgui_type_t *rtgui_filelist_view_type_get(void)
{
static rtgui_type_t *filelist_view_type = RT_NULL;
if (!filelist_view_type)
{
filelist_view_type = rtgui_type_create("flview", RTGUI_VIEW_TYPE,
sizeof(rtgui_filelist_view_t), RTGUI_CONSTRUCTOR(_rtgui_filelist_view_constructor), RT_NULL);
}
return filelist_view_type;
}
void rtgui_filelist_view_ondraw(struct rtgui_filelist_view* view)
{
struct rtgui_dc* dc;
rt_uint16_t page_index, index;
struct rtgui_file_item* item;
struct rtgui_rect rect, item_rect, image_rect;
dc = rtgui_dc_begin_drawing(RTGUI_WIDGET(view));
if (dc == RT_NULL) return;
rtgui_widget_get_rect(RTGUI_WIDGET(view), &rect);
rtgui_dc_fill_rect(dc, &rect);
/* get item base rect */
item_rect = rect;
item_rect.y1 += 1;
item_rect.y2 = item_rect.y1 + (1 + rtgui_theme_get_selected_height());
/* get image base rect */
image_rect.x1 = RTGUI_FILELIST_MARGIN; image_rect.y1 = 0;
image_rect.x2 = RTGUI_FILELIST_MARGIN + file_image->w; image_rect.y2 = file_image->h;
rtgui_rect_moveto_align(&item_rect, &image_rect, RTGUI_ALIGN_CENTER_VERTICAL);
/* get current page */
page_index = (view->current_item / view->page_items) * view->page_items;
for (index = 0; index < view->page_items; index ++)
{
if (page_index + index >= view->items_count) break;
item = &(view->items[page_index + index]);
if (page_index + index == view->current_item)
{
rtgui_theme_draw_selected(dc, &item_rect);
}
else
{
/* draw background */
rtgui_dc_fill_rect(dc, &item_rect);
}
/* draw item */
if (item->type == RTGUI_FITEM_FILE)
rtgui_image_blit(file_image, dc, &image_rect);
else
rtgui_image_blit(folder_image, dc, &image_rect);
/* draw text */
item_rect.x1 += RTGUI_FILELIST_MARGIN + file_image->w + 2;
rtgui_dc_draw_text(dc, item->name, &item_rect);
item_rect.x1 -= RTGUI_FILELIST_MARGIN + file_image->w + 2;
/* move to next item position */
item_rect.y1 += (rtgui_theme_get_selected_height() + 1);
item_rect.y2 += (rtgui_theme_get_selected_height() + 1);
image_rect.y1 += (rtgui_theme_get_selected_height() + 1);
image_rect.y2 += (rtgui_theme_get_selected_height() + 1);
}
rtgui_dc_end_drawing(dc);
}
void rtgui_filelist_view_update_current(struct rtgui_filelist_view* view, rt_uint16_t old_item)
{
struct rtgui_dc* dc;
struct rtgui_file_item* item;
rtgui_rect_t rect, item_rect, image_rect;
if (old_item/view->page_items != view->current_item/view->page_items)
{
/* it's not a same page, update all */
rtgui_widget_update(RTGUI_WIDGET(view));
return;
}
dc = rtgui_dc_begin_drawing(RTGUI_WIDGET(view));
if (dc == RT_NULL) return;
rtgui_widget_get_rect(RTGUI_WIDGET(view), &rect);
/* get old item rect */
item_rect = rect;
item_rect.y1 += 1;
item_rect.y1 += (old_item % view->page_items) * (1 + rtgui_theme_get_selected_height());
item_rect.y2 = item_rect.y1 + (1 + rtgui_theme_get_selected_height());
/* get image rect */
image_rect.x1 = RTGUI_FILELIST_MARGIN; image_rect.y1 = 0;
image_rect.x2 = RTGUI_FILELIST_MARGIN + file_image->w; image_rect.y2 = file_image->h;
rtgui_rect_moveto_align(&item_rect, &image_rect, RTGUI_ALIGN_CENTER_VERTICAL);
/* draw old item */
rtgui_dc_fill_rect(dc, &item_rect);
item = &(view->items[old_item]);
if (item->type == RTGUI_FITEM_FILE) /* draw item image */
rtgui_image_blit(file_image, dc, &image_rect);
else
rtgui_image_blit(folder_image, dc, &image_rect);
item_rect.x1 += RTGUI_FILELIST_MARGIN + file_image->w + 2;
rtgui_dc_draw_text(dc, item->name, &item_rect);
/* draw current item */
item_rect = rect;
item_rect.y1 += 1;
item_rect.y1 += (view->current_item % view->page_items) * (1 + rtgui_theme_get_selected_height());
item_rect.y2 = item_rect.y1 + (1 + rtgui_theme_get_selected_height());
rtgui_theme_draw_selected(dc, &item_rect);
/* get image base rect */
image_rect.x1 = RTGUI_FILELIST_MARGIN; image_rect.y1 = 0;
image_rect.x2 = RTGUI_FILELIST_MARGIN + file_image->w; image_rect.y2 = file_image->h;
rtgui_rect_moveto_align(&item_rect, &image_rect, RTGUI_ALIGN_CENTER_VERTICAL);
item = &(view->items[view->current_item]);
if (item->type == RTGUI_FITEM_FILE) /* draw item image */
rtgui_image_blit(file_image, dc, &image_rect);
else
rtgui_image_blit(folder_image, dc, &image_rect);
item_rect.x1 += RTGUI_FILELIST_MARGIN + file_image->w + 2;
rtgui_dc_draw_text(dc, item->name, &item_rect);
rtgui_dc_end_drawing(dc);
}
rt_bool_t rtgui_filelist_view_event_handler(struct rtgui_widget* widget, struct rtgui_event* event)
{
struct rtgui_filelist_view* view = RT_NULL;
view = RTGUI_FILELIST_VIEW(widget);
switch (event->type)
{
case RTGUI_EVENT_PAINT:
rtgui_filelist_view_ondraw(view);
return RT_FALSE;
case RTGUI_EVENT_RESIZE:
{
struct rtgui_event_resize* resize;
resize = (struct rtgui_event_resize*)event;
/* recalculate page items */
if (file_image != RT_NULL)
view->page_items = resize->h / (1 + rtgui_theme_get_selected_height());
else
view->page_items = resize->h / (2 + 14);
}
break;
case RTGUI_EVENT_MOUSE_BUTTON:
{
rtgui_rect_t rect;
struct rtgui_event_mouse* emouse;
emouse = (struct rtgui_event_mouse*)event;
/* calculate selected item */
/* get physical extent information */
rtgui_widget_get_rect(widget, &rect);
rtgui_widget_rect_to_device(widget, &rect);
if (rtgui_rect_contains_point(&rect, emouse->x, emouse->y) == RT_EOK)
{
rt_uint16_t index;
index = (emouse->y - rect.y1) / (2 + rtgui_theme_get_selected_height());
if ((index < view->items_count) && (index < view->page_items))
{
rt_uint16_t old_item;
old_item = view->current_item;
/* set selected item */
view->current_item = (old_item/view->page_items) * view->page_items + index;
rtgui_filelist_view_update_current(view, old_item);
}
}
}
break;
case RTGUI_EVENT_KBD:
{
struct rtgui_event_kbd* ekbd = (struct rtgui_event_kbd*)event;
if (ekbd->type == RTGUI_KEYDOWN)
{
rt_uint16_t old_item;
old_item = view->current_item;
switch (ekbd->key)
{
case RTGUIK_UP:
if (view->current_item > 0)
view->current_item --;
rtgui_filelist_view_update_current(view, old_item);
return RT_FALSE;
case RTGUIK_DOWN:
if (view->current_item < view->items_count - 1)
view->current_item ++;
rtgui_filelist_view_update_current(view, old_item);
return RT_FALSE;
case RTGUIK_LEFT:
if (view->current_item - view->page_items >= 0)
view->current_item -= view->page_items;
rtgui_filelist_view_update_current(view, old_item);
return RT_FALSE;
case RTGUIK_RIGHT:
if (view->current_item + view->page_items < view->items_count - 1)
view->current_item += view->page_items;
rtgui_filelist_view_update_current(view, old_item);
return RT_FALSE;
case RTGUIK_RETURN:
if (view->items[view->current_item].type == RTGUI_FITEM_DIR)
{
char new_path[64];
if (strcmp(view->items[view->current_item].name, ".") == 0) return RT_FALSE;
if (strcmp(view->items[view->current_item].name, "..") == 0)
{
char *ptr;
ptr = strrchr(view->current_directory, PATH_SEPARATOR);
if (ptr == RT_NULL) return RT_FALSE;
if (ptr == &(view->current_directory[0]))
{
/* it's root directory */
new_path[0] = PATH_SEPARATOR;
new_path[1] = '\0';
}
else
{
strncpy(new_path, view->current_directory, ptr - view->current_directory + 1);
new_path[ptr - view->current_directory] = '\0';
}
}
else if (view->current_item == 0 &&
#ifdef _WIN32
(view->current_directory[1] == ':') && (view->current_directory[2] == '\\'))
#else
(view->current_directory[0] == '/') && (view->current_directory[1] == '\0'))
#endif
{
if (RTGUI_VIEW(view)->modal_show == RT_TRUE)
{
rtgui_view_end_modal(RTGUI_VIEW(view), RTGUI_MODAL_CANCEL);
}
else
{
rtgui_filelist_view_destroy(view);
}
return RT_FALSE;
}
else
{
if (view->current_directory[strlen(view->current_directory) - 1] != PATH_SEPARATOR)
rt_snprintf(new_path, sizeof(new_path), "%s%c%s",view->current_directory, PATH_SEPARATOR,
view->items[view->current_item].name);
else
rt_snprintf(new_path, sizeof(new_path), "%s%s",view->current_directory,
view->items[view->current_item].name);
}
rtgui_filelist_view_set_directory(view, new_path);
}
else
{
if (RTGUI_VIEW(view)->modal_show == RT_TRUE)
{
rtgui_view_end_modal(RTGUI_VIEW(view), RTGUI_MODAL_OK);
}
}
return RT_FALSE;
default:
break;
}
}
}
return RT_FALSE;
}
/* use view event handler */
return rtgui_view_event_handler(widget, event);
}
rtgui_filelist_view_t* rtgui_filelist_view_create(rtgui_workbench_t* workbench,
const char* directory, const char* pattern, const rtgui_rect_t* rect)
{
struct rtgui_filelist_view* view = RT_NULL;
/* create a new view */
view = (struct rtgui_filelist_view*) rtgui_widget_create(RTGUI_FILELIST_VIEW_TYPE);
if (view != RT_NULL)
{
view->items = RT_NULL;
view->pattern = rt_strdup(pattern);
view->page_items = rtgui_rect_height(*rect) / (1 + rtgui_theme_get_selected_height());
rtgui_filelist_view_set_directory(view, directory);
rtgui_workbench_add_view(workbench, RTGUI_VIEW(view));
}
return view;
}
void rtgui_filelist_view_destroy(rtgui_filelist_view_t* view)
{
/* delete all file items */
rtgui_filelist_view_clear(view);
/* delete current directory and pattern */
rtgui_free(view->current_directory); view->current_directory = RT_NULL;
rtgui_free(view->pattern); view->pattern = RT_NULL;
/* delete image */
rtgui_image_destroy(file_image);
rtgui_image_destroy(folder_image);
/* destroy view */
rtgui_widget_destroy(RTGUI_WIDGET(view));
}
/* clear all file items */
void rtgui_filelist_view_clear(rtgui_filelist_view_t* view)
{
rt_uint32_t index;
struct rtgui_file_item* item;
for (index = 0; index < view->items_count; index ++)
{
item = &(view->items[index]);
/* release item name */
rt_free(item->name);
item->name = RT_NULL;
}
/* release items */
rtgui_free(view->items);
view->items = RT_NULL;
view->items_count = 0;
view->current_item = 0;
}
void rtgui_filelist_view_set_directory(rtgui_filelist_view_t* view, const char* directory)
{
char fullpath[256];
struct rtgui_file_item *item;
RT_ASSERT(view != RT_NULL);
/* clear file items firstly */
rtgui_filelist_view_clear(view);
if (directory != RT_NULL)
{
DIR* dir;
struct stat s;
rt_uint32_t index;
struct dirent* dirent;
view->items_count = 0;
dir = opendir(directory);
if (dir == RT_NULL) goto __return;
/* current directory exists, set it */
if (view->current_directory != RT_NULL) rt_free(view->current_directory);
view->current_directory = rt_strdup(directory);
do
{
dirent = readdir(dir);
if (dirent == RT_NULL) break;
if (strcmp(dirent->d_name, ".") == 0) continue;
if (strcmp(dirent->d_name, "..") == 0) continue;
view->items_count ++;
} while (dirent != RT_NULL);
closedir(dir);
view->items_count ++; /* root directory for [x] exit, others for .. */
view->items = (struct rtgui_file_item*) rtgui_malloc(sizeof(struct rtgui_file_item) * view->items_count);
if (view->items == RT_NULL) return; /* no memory */
index = 0;
if (directory[0] == '/' && directory[1] != '\0')
{
item = &(view->items[0]);
/* add .. directory */
item->name = rt_strdup("..");
item->type = RTGUI_FITEM_DIR;
item->size = 0;
index ++;
}
else
{
item = &(view->items[0]);
/* add .. directory */
item->name = rt_strdup("<EFBFBD>˳<EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>");
item->type = RTGUI_FITEM_DIR;
item->size = 0;
index ++;
}
/* reopen directory */
dir = opendir(directory);
for (; index < view->items_count; index ++)
{
dirent = readdir(dir);
if (dirent == RT_NULL) break;
item = &(view->items[index]);
item->name = rt_strdup(dirent->d_name);
rt_memset(&s, 0, sizeof(struct stat));
/* build full path for the file */
if (directory[strlen(directory) - 1] != PATH_SEPARATOR)
rt_sprintf(fullpath, "%s%c%s", directory, PATH_SEPARATOR, dirent->d_name);
else
rt_sprintf(fullpath, "%s%s", 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);
}
view->current_item = 0;
__return:
/* update view */
rtgui_widget_update(RTGUI_WIDGET(view));
}
void rtgui_filelist_get_fullpath(rtgui_filelist_view_t* view, char* path, rt_size_t len)
{
RT_ASSERT(view != RT_NULL);
rt_sprintf(path, "%s%c%s", view->current_directory, PATH_SEPARATOR,
view->items[view->current_item].name);
}
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