rt-thread/examples/gui/demo_view.c

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#include <rtgui/rtgui.h>
#include <rtgui/widgets/view.h>
#include <rtgui/widgets/button.h>
#include <rtgui/widgets/workbench.h>
#include <rtgui/widgets/staticline.h>
static rtgui_view_t* demo_view_list[32];
static rt_uint32_t demo_view_current = 0;
static rt_uint32_t demo_view_number = 0;
void demo_view_next(struct rtgui_widget* widget, rtgui_event_t *event)
{
if (demo_view_current + 1< demo_view_number)
{
demo_view_current ++;
rtgui_view_show(demo_view_list[demo_view_current], RT_FALSE);
}
}
void demo_view_prev(struct rtgui_widget* widget, rtgui_event_t *event)
{
if (demo_view_current != 0)
{
demo_view_current --;
rtgui_view_show(demo_view_list[demo_view_current], RT_FALSE);
}
}
rtgui_view_t* demo_view(rtgui_workbench_t* workbench, const char* title)
{
char view_name[32];
struct rtgui_view* view;
rt_sprintf(view_name, "view %d", demo_view_number + 1);
view = rtgui_view_create(view_name);
/* add to the list */
demo_view_list[demo_view_number] = view;
demo_view_number ++;
rtgui_workbench_add_view(workbench, view);
/* add next and prev button */
{
struct rtgui_rect rect;
struct rtgui_button *next_btn, *prev_btn;
struct rtgui_label *label;
struct rtgui_staticline *line;
/* get view's rect */
rtgui_widget_get_rect(RTGUI_WIDGET(view), &rect);
rect.x1 += 5; rect.y1 += 5;
rect.x2 -= 5; rect.y2 = rect.y1 + 20;
/* create view label */
label = rtgui_label_create(title);
rtgui_widget_set_rect(RTGUI_WIDGET(label), &rect);
rtgui_container_add_child(RTGUI_CONTAINER(view), RTGUI_WIDGET(label));
rect.y1 += 20; rect.y2 += 20;
line = rtgui_staticline_create(RTGUI_HORIZONTAL);
rtgui_widget_set_rect(RTGUI_WIDGET(line), &rect);
rtgui_container_add_child(RTGUI_CONTAINER(view), RTGUI_WIDGET(line));
/* get view's rect */
rtgui_widget_get_rect(RTGUI_WIDGET(view), &rect);
rect.x2 -= 5; rect.y2 -= 5;
rect.x1 = rect.x2 - 50; rect.y1 = rect.y2 - 20;
/* create next button */
next_btn = rtgui_button_create("Next");
rtgui_button_set_onbutton(next_btn, demo_view_next);
rtgui_widget_set_rect(RTGUI_WIDGET(next_btn), &rect);
rtgui_container_add_child(RTGUI_CONTAINER(view), RTGUI_WIDGET(next_btn));
/* get view's rect */
rtgui_widget_get_rect(RTGUI_WIDGET(view), &rect);
rect.x1 += 5; rect.y2 -= 5;
rect.x2 = rect.x1 + 50; rect.y1 = rect.y2 - 20;
/* create previous button */
prev_btn = rtgui_button_create("Prev");
rtgui_button_set_onbutton(prev_btn, demo_view_prev);
rtgui_widget_set_rect(RTGUI_WIDGET(prev_btn), &rect);
rtgui_container_add_child(RTGUI_CONTAINER(view), RTGUI_WIDGET(prev_btn));
}
return view;
}
void demo_view_get_rect(rtgui_view_t* view, rtgui_rect_t *rect)
{
RT_ASSERT(view != RT_NULL);
RT_ASSERT(rect != RT_NULL);
rtgui_widget_get_rect(RTGUI_WIDGET(view), rect);
/* remove the command button rect */
rect->y1 += 45;
rect->y2 -= 25;
}
#ifndef RTGUI_USING_SMALL_SIZE
rtgui_box_t* demo_view_create_box(rtgui_view_t* view, int orient)
{
rtgui_rect_t rect;
rtgui_box_t* box;
/* get rect of view */
rtgui_widget_get_rect(RTGUI_WIDGET(view), &rect);
rect.y1 += 45;
rect.y2 -= 25;
box = rtgui_box_create(orient, &rect);
rtgui_container_add_child(RTGUI_CONTAINER(view), RTGUI_WIDGET(box));
return box;
}
#endif
void demo_view_show()
{
if (demo_view_number != 0)
{
rtgui_view_show(demo_view_list[demo_view_current], RT_FALSE);
}
}