guix/samples/demo_guix_smart_watch/custom_checkbox.c

#include "custom_checkbox.h"

#define CUSTOM_CHECKBOX_TIMER 2

VOID custom_checkbox_draw(CUSTOM_CHECKBOX *checkbox);
UINT custom_checkbox_event_process(CUSTOM_CHECKBOX *checkbox, GX_EVENT *event_ptr);
VOID custom_checkbox_select(GX_CHECKBOX *checkbox);

/*************************************************************************************/
VOID custom_checkbox_create(CUSTOM_CHECKBOX *checkbox, GX_WIDGET *parent, CUSTOM_CHECKBOX_INFO *info, GX_RECTANGLE *size)
{
    gx_checkbox_create((GX_CHECKBOX *)checkbox, "", parent, GX_NULL, GX_STYLE_ENABLED | GX_STYLE_TRANSPARENT, info->widget_id, size);

    checkbox->gx_button_select_handler = (VOID (*)(GX_WIDGET *))custom_checkbox_select;
    checkbox->gx_widget_draw_function = (VOID (*)(GX_WIDGET *))custom_checkbox_draw;
    checkbox->gx_widget_event_process_function = (UINT (*)(GX_WIDGET *, GX_EVENT *))custom_checkbox_event_process;
    checkbox->background_id = info->background_id;
    checkbox->cur_offset = info->start_offset;
    checkbox->start_offset = info->start_offset;
    checkbox->end_offset = info->end_offset;
    checkbox->gx_checkbox_checked_pixelmap_id = info->checked_map_id;
    checkbox->gx_checkbox_unchecked_pixelmap_id = info->unchecked_map_id;
    checkbox->state = CHECKBOX_STATE_NONE;
}

/*************************************************************************************/
VOID custom_checkbox_draw(CUSTOM_CHECKBOX *checkbox)
{
    GX_PIXELMAP *map;
    INT ypos;

    gx_context_pixelmap_get(checkbox->background_id, &map);

    if (map)
    {
        gx_canvas_pixelmap_draw(checkbox->gx_widget_size.gx_rectangle_left, checkbox->gx_widget_size.gx_rectangle_top, map);
    }


    if (checkbox->gx_widget_style & GX_STYLE_BUTTON_PUSHED)
    {
        gx_context_pixelmap_get(checkbox->gx_checkbox_checked_pixelmap_id, &map);

        if (map)
        {
            ypos = (checkbox->gx_widget_size.gx_rectangle_bottom - checkbox->gx_widget_size.gx_rectangle_top + 1);
            ypos -= map->gx_pixelmap_width;
            ypos /= 2;
            ypos += checkbox->gx_widget_size.gx_rectangle_top;

            if (checkbox->state == CHECKBOX_STATE_NONE)
            {
                gx_canvas_pixelmap_draw(checkbox->gx_widget_size.gx_rectangle_right - map->gx_pixelmap_width - checkbox->cur_offset,
                    ypos, map);
            }
            else
            {
                gx_canvas_pixelmap_draw(checkbox->gx_widget_size.gx_rectangle_left + checkbox->cur_offset,
                    ypos, map);
            }
        }
    }
    else
    {
        gx_context_pixelmap_get(checkbox->gx_checkbox_unchecked_pixelmap_id, &map);

        if (map)
        {
            ypos = (checkbox->gx_widget_size.gx_rectangle_bottom - checkbox->gx_widget_size.gx_rectangle_top + 1);
            ypos -= map->gx_pixelmap_width;
            ypos /= 2;
            ypos += checkbox->gx_widget_size.gx_rectangle_top;

            if (checkbox->state == CHECKBOX_STATE_NONE)
            {
                gx_canvas_pixelmap_draw(checkbox->gx_widget_size.gx_rectangle_left + checkbox->cur_offset,
                    ypos, map);
            }
            else
            {
                gx_canvas_pixelmap_draw(checkbox->gx_widget_size.gx_rectangle_right - map->gx_pixelmap_width - checkbox->cur_offset,
                    ypos, map);
            }
        }
    }
}

/*************************************************************************************/
VOID  custom_checkbox_select(GX_CHECKBOX *checkbox)
{
    if (!(checkbox->gx_widget_style & GX_STYLE_BUTTON_PUSHED))
    {
        checkbox->gx_widget_style |= GX_STYLE_BUTTON_PUSHED;
    }
    else
    {
        checkbox->gx_widget_style &= ~GX_STYLE_BUTTON_PUSHED;
    }
}

/*************************************************************************************/
UINT custom_checkbox_event_process(CUSTOM_CHECKBOX *checkbox, GX_EVENT *event_ptr)
{
    switch (event_ptr->gx_event_type)
    {
    case GX_EVENT_PEN_DOWN:
        if (checkbox->state == CHECKBOX_STATE_NONE)
        {
            checkbox->gx_button_select_handler((GX_WIDGET *)checkbox);
            checkbox->state = CHECKBOX_STATE_SLIDING;

            gx_system_timer_start(checkbox, CUSTOM_CHECKBOX_TIMER, 1, 1);
        }
        return gx_widget_event_process((GX_WIDGET *)checkbox, event_ptr);

    case GX_EVENT_TIMER:
        if (event_ptr->gx_event_payload.gx_event_timer_id == CUSTOM_CHECKBOX_TIMER)
        {
            checkbox->cur_offset += 2;

            if (checkbox->cur_offset >= checkbox->end_offset)
            {
                checkbox->cur_offset = checkbox->start_offset;
                gx_system_timer_stop(checkbox, CUSTOM_CHECKBOX_TIMER);
                checkbox->state = CHECKBOX_STATE_NONE;

                if (checkbox->gx_widget_style & GX_STYLE_BUTTON_PUSHED)
                {
                    gx_widget_event_generate((GX_WIDGET *)checkbox, GX_EVENT_TOGGLE_ON, 0);
                }
                else
                {
                    gx_widget_event_generate((GX_WIDGET *)checkbox, GX_EVENT_TOGGLE_OFF, 0);
                }
            }

            gx_system_dirty_mark(checkbox);
        }
        break;

    default:
        return gx_widget_event_process((GX_WIDGET *)checkbox, event_ptr);
    }

    return 0;
}