PNG图片分层，模拟时钟！

最新推荐文章于 2024-12-01 11:29:31 发布

原创最新推荐文章于 2024-12-01 11:29:31 发布 · 735 阅读

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本文介绍了一种在子屏上实现模拟时钟显示的方法，包括顺时针时钟显示和模拟时钟更新两个主要功能模块。通过定时更新时钟画面来确保显示的时间准确无误。

void mmi_idle_sublcd_diplay_clockwise(void)
{
/*----------------------------------------------------------------*/
/* Local Variables */
/*----------------------------------------------------------------*/
gdi_handle active_layer;
applib_time_struct t;
U16 image_nHour = 0;
U16 image_nMin = 0;

/*----------------------------------------------------------------*/
/* Code Body */
/*----------------------------------------------------------------*/
if (srv_backlight_is_lcd_sleep())
{
StopTimer(SUBLCD_ANALOG_CLOCK_TIMER);
return;
}

applib_dt_get_date_time(&t);

if (t.nHour > 12)
t.nHour = t.nHour - 12;

image_nHour = (t.nHour * 5) + t.nMin /12;
image_nMin = t.nMin;

gdi_layer_get_active(&active_layer);
gdi_push_and_set_alpha_blending_source_layer(active_layer);
gdi_image_draw_id(0, 0, (IMG_SUBLCD_CLOCKWISE_00 + image_nHour));
gdi_image_draw_id(0, 0, (IMG_SUBLCD_MINUTE_HAND_00 + image_nMin));
gdi_pop_and_restore_alpha_blending_source_layer();
}

void mmi_idle_sublcd_analog_clock(void)
{
/*----------------------------------------------------------------*/
/* Local Variables */
/*----------------------------------------------------------------*/
GDI_HANDLE act_lcd = GDI_ERROR_HANDLE;

/*----------------------------------------------------------------*/
/* Code Body */
/*----------------------------------------------------------------*/
if (srv_backlight_is_lcd_sleep())
{
StopTimer(SUBLCD_ANALOG_CLOCK_TIMER);
return;
}

gdi_lcd_get_active(&act_lcd);
if (act_lcd != GDI_LCD_SUB_LCD_HANDLE)
{
UI_set_sub_LCD_graphics_context();
}
gdi_layer_lock_frame_buffer();

gdi_layer_push_clip();
gdi_layer_reset_clip();
gdi_image_draw(0, 0, get_image(IMG_SUBLCD_ANALOG_CLOCK_BG));
wgui_clock_show_sub_lcd();
mmi_idle_sublcd_diplay_clockwise();
gdi_layer_pop_clip();
gdi_layer_unlock_frame_buffer();
gdi_layer_blt_previous(0, 0, UI_device_width - 1, UI_device_height - 1);

if (act_lcd == GDI_LCD_MAIN_LCD_HANDLE)
{
UI_set_main_LCD_graphics_context();
}

StartTimer(SUBLCD_ANALOG_CLOCK_TIMER,1000,mmi_idle_sublcd_analog_clock);
}