rt-thread-official/examples/gui/demo_view_slider.c

#include "demo_view.h"
#include <rtgui/rtgui_system.h>
#include <rtgui/widgets/label.h>
#include <rtgui/widgets/slider.h>

rtgui_view_t *demo_view_slider(rtgui_workbench_t* workbench)
{
	rtgui_view_t *view;
	rtgui_rect_t rect;
	rtgui_label_t *label;
	rtgui_slider_t *slider;

	/* create a demo view */
	view = demo_view(workbench, "Slider View");

	/* get demo view rect */
	demo_view_get_rect(view, &rect);
	label = rtgui_label_create("horizontal slider:");
	rtgui_container_add_child(RTGUI_CONTAINER(view), 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;
	slider = rtgui_slider_create(0, 100, RTGUI_HORIZONTAL);
	rtgui_container_add_child(RTGUI_CONTAINER(view), RTGUI_WIDGET(slider));
	rtgui_widget_set_rect(RTGUI_WIDGET(slider), &rect);

	/* get demo view rect */
	demo_view_get_rect(view, &rect);
	label = rtgui_label_create("vertical slider:");
	rtgui_container_add_child(RTGUI_CONTAINER(view), RTGUI_WIDGET(label));
	rect.x1 += 5; rect.x2 -= 5;
	rect.y1 += 50; 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;
	slider = rtgui_slider_create(0, 100, RTGUI_VERTICAL);
	rtgui_container_add_child(RTGUI_CONTAINER(view), RTGUI_WIDGET(slider));
	rtgui_widget_set_rect(RTGUI_WIDGET(slider), &rect);

	return view;
}