rt-thread/examples/gui/demo_view_listctrl.c

/*
 * 程序清单：label控件演示
 *
 * 这个例子会在创建出的container上添加几个不同类型的label控件
 */
#include "demo_view.h"
#include <rtgui/widgets/label.h>
#include <rtgui/widgets/listctrl.h>

static rtgui_image_t* item_icon = RT_NULL;
static const char * image_xpm[] = {
	"16 16 106 2",
	"  	c None",
	". 	c #D0C83F",
	"+ 	c #D0C840",
	"@ 	c #D0C030",
	"# 	c #D0B820",
	"$ 	c #D0B020",
	"% 	c #D0B01F",
	"& 	c #5F571F",
	"* 	c #F0F0C0",
	"= 	c #FFF8D0",
	"- 	c #FFF8C0",
	"; 	c #FFF8B0",
	"> 	c #FFF8A0",
	", 	c #F0E870",
	"' 	c #707030",
	") 	c #4F87EF",
	"! 	c #4F78C0",
	"~ 	c #5088E0",
	"{ 	c #5078C0",
	"] 	c #C0D0F0",
	"^ 	c #FFF8E0",
	"/ 	c #FFF090",
	"( 	c #F0E070",
	"_ 	c #6F97D0",
	": 	c #C0D8FE",
	"< 	c #80A8F0",
	"[ 	c #7088D0",
	"} 	c #B0D0FF",
	"| 	c #90B0F0",
	"1 	c #1040A0",
	"2 	c #F0F080",
	"3 	c #707040",
	"4 	c #7098F0",
	"5 	c #3068E0",
	"6 	c #A0B8F0",
	"7 	c #4070C0",
	"8 	c #002880",
	"9 	c #404040",
	"0 	c #505050",
	"a 	c #F0F090",
	"b 	c #F0E860",
	"c 	c #F0D860",
	"d 	c #807840",
	"e 	c #2F5FC0",
	"f 	c #1050D0",
	"g 	c #1048B0",
	"h 	c #002870",
	"i 	c #C0C080",
	"j 	c #C0C070",
	"k 	c #F0F070",
	"l 	c #F0E060",
	"m 	c #E0D050",
	"n 	c #00277F",
	"o 	c #00287F",
	"p 	c #1F3F6F",
	"q 	c #1048C0",
	"r 	c #0040B0",
	"s 	c #204080",
	"t 	c #FFF890",
	"u 	c #F0D850",
	"v 	c #E0C840",
	"w 	c #807040",
	"x 	c #A0B06F",
	"y 	c #204880",
	"z 	c #2048A0",
	"A 	c #90A8C0",
	"B 	c #FFF080",
	"C 	c #F0D050",
	"D 	c #C0A830",
	"E 	c #6F682F",
	"F 	c #F0F0A0",
	"G 	c #E0D060",
	"H 	c #B0A040",
	"I 	c #D0B840",
	"J 	c #E0C040",
	"K 	c #D0B030",
	"L 	c #706820",
	"M 	c #5F581F",
	"N 	c #CFBF3F",
	"O 	c #FFF0A0",
	"P 	c #A09830",
	"Q 	c #A08820",
	"R 	c #908030",
	"S 	c #807830",
	"T 	c #707020",
	"U 	c #605820",
	"V 	c #6F672F",
	"W 	c #D0C040",
	"X 	c #F0E880",
	"Y 	c #907820",
	"Z 	c #B09820",
	"` 	c #B09010",
	" .	c #B08820",
	"..	c #806820",
	"+.	c #5F5F1F",
	"@.	c #F0E080",
	"#.	c #B09020",
	"$.	c #C0B040",
	"%.	c #A09030",
	"&.	c #908020",
	"*.	c #606020",
	"=.	c #6F5F1F",
	"-.	c #9F982F",
	";.	c #A0872F",
	">.	c #6F681F",
	",.	c #706020",
	"                                ",
	"          . + + + @ @ # # $ % & ",
	"          + * = = = = - ; > , ' ",
	"  ) !     ~ { ] ^ = - - > / ( ' ",
	"_ : < { [ } | 1 - ; > > / 2 ( 3 ",
	"{ 4 5 1 6 7 5 8 9 0 a / , b c d ",
	"e f g h 8 8 g h i j / k l c m d ",
	"  n o   p q r s t 2 , l c u v w ",
	"        x y z A B , l u C v D E ",
	"        @ F > t k G H I J K L M ",
	"      N @ O / 2 l P Q R S T U V ",
	"      W m 2 X l I Y Z `  ...+.  ",
	"      W @.l u I R #.Z Y U M     ",
	"    $.G I $.%.R &.Y *.& =.      ",
	"  -.;.>.,.L L ,.& M             ",
	"                                "};

static struct list_item
{
	const char* name;
	const char* gender;
	int age;
	rtgui_image_t* image;
} items[] =
{
	{"index0", "00", 30, RT_NULL},
	{"index1", "m1", 30, RT_NULL},
	{"index2", "m2", 30, RT_NULL},
	{"index3", "m3", 30, RT_NULL},
	{"index4", "m4", 30, RT_NULL},
	{"index5", "m5", 30, RT_NULL},
	{"index6", "m6", 30, RT_NULL},
	{"index7", "m7", 30, RT_NULL},
	{"index8", "m8", 30, RT_NULL},
	{"index9", "m9", 30, RT_NULL},
	{"index10", "m10", 30, RT_NULL},
	{"index11", "m11", 30, RT_NULL},
	{"index12", "m12", 30, RT_NULL},
	{"index13", "m13", 30, RT_NULL},
	{"index14", "m14", 30, RT_NULL},
	{"index15", "m15", 30, RT_NULL},
	{"index16", "m16", 30, RT_NULL},
	{"index17", "m17", 30, RT_NULL},
	{"index18", "m18", 30, RT_NULL},
	{"index19", "m19", 30, RT_NULL},
};

void _rtgui_listctrl_item_draw(struct rtgui_listctrl *list,
							   struct rtgui_dc* dc,
							   rtgui_rect_t* rect,
							   rt_uint16_t index)
{
	char age_str[8];
	rtgui_rect_t item_rect;
	struct list_item *items, *item;

	item_rect = *rect;
	item_rect.x1 += 5;
	items = (struct list_item*)list->items;
	item = &items[index];

	/* draw text */
	rtgui_dc_draw_text(dc, item->name, &item_rect); item_rect.x1 += 60;
	rtgui_dc_draw_vline(dc, item_rect.x1, item_rect.y1, item_rect.y2);

	item_rect.x1 += 5;
	rtgui_dc_draw_text(dc, item->gender, &item_rect); item_rect.x1 += 60;
	rtgui_dc_draw_vline(dc, item_rect.x1, item_rect.y1, item_rect.y2);

	item_rect.x1 += 5;
	rt_snprintf(age_str, sizeof(age_str), "%d", item->age);
	rtgui_dc_draw_text(dc, age_str, &item_rect); item_rect.x1 += 40;
	rtgui_dc_draw_vline(dc, item_rect.x1, item_rect.y1, item_rect.y2);

	item_rect.x1 += 5;

	/* draw image */
	if (item->image != RT_NULL)
	{
		rtgui_rect_t image_rect;

		image_rect.x1 = 0; image_rect.y1 = 0;
		image_rect.x2 = item->image->w; image_rect.y2 = item->image->h;
		rtgui_rect_moveto_align(&item_rect, &image_rect, RTGUI_ALIGN_CENTER_VERTICAL);
		rtgui_image_blit(item->image, dc, &image_rect);
	}
}

static rt_bool_t on_items(struct rtgui_object* object, struct rtgui_event* event)
{
	rtgui_listctrl_t* ctrl;
	/* get listctrl */
	ctrl = RTGUI_LISTCTRL(object);

	/* 打印当前的项 */
	rt_kprintf("current item: %d\n", ctrl->current_item);

	return RT_TRUE;
}

/* 创建用于演示label控件的视图 */
rtgui_container_t* demo_view_listctrl(void)
{
	rtgui_rect_t rect;
	rtgui_container_t* container;
	rtgui_label_t* label;
	rtgui_listctrl_t* box;

	/* 先创建一个演示用的视图 */
	container = demo_view("List Control Demo");

	if (item_icon == RT_NULL)
		item_icon = rtgui_image_create_from_mem("xpm",
			(const rt_uint8_t*)image_xpm, sizeof(image_xpm), RT_TRUE);
	items[1].image = item_icon;

	/* 获得视图的位置信息 */
	demo_view_get_rect(container, &rect);
	rect.x1 += 5;
	rect.x2 -= 5;
	rect.y1 += 5;
	rect.y2 = rect.y1 + 20;
	/* 创建一个label控件 */
	label = rtgui_label_create("List Control: ");
	/* 设置label的位置 */
	rtgui_widget_set_rect(RTGUI_WIDGET(label), &rect);
	/* container是一个container控件，调用add_child方法添加这个label控件 */
	rtgui_container_add_child(container, RTGUI_WIDGET(label));

	rect.y1 = rect.y2 + 3;
	rect.y2 = 250;
	box = rtgui_listctrl_create((rt_uint32_t)items, sizeof(items)/sizeof(items[0]), &rect,
		_rtgui_listctrl_item_draw);
	rtgui_listctrl_set_onitem(box, on_items);
	/* container是一个container控件，调用add_child方法添加这个listctrl控件 */
	rtgui_container_add_child(container, RTGUI_WIDGET(box));

	return container;
}