static void _rtgui_plot_draw_curve(struct rtgui_plot *plot, struct rtgui_event *event)
{
int i;
struct rtgui_dc *dc;
dc = rtgui_dc_begin_drawing(RTGUI_WIDGET(plot));
if (dc == RT_NULL)
return;
if (RTGUI_MV_VIEW(plot)->model_number == 1)
{
_rtgui_plot_curve_onpaint(dc, plot,
RTGUI_PLOT_CURVE(RTGUI_MV_VIEW(plot)->model),
0, RTGUI_MV_MODEL(RTGUI_MV_VIEW(plot)->model)->length);
}
else
{
void **curve_array = (void **)RTGUI_MV_VIEW(plot)->model;
for (i = 0; i < RTGUI_MV_VIEW(plot)->model_number; i++)
{
_rtgui_plot_curve_onpaint(dc, plot,
RTGUI_PLOT_CURVE(curve_array[i]),
0, RTGUI_MV_MODEL(curve_array[i])->length);
}
}
rtgui_dc_end_drawing(dc);
}
struct rtgui_container* demo_plot(void)
{
struct rtgui_container *cnt;
struct rtgui_plot_curve *curve1, *curve2, *curve3;
struct rtgui_plot *plot;
struct rtgui_rect rect;
cnt = demo_view("ÇúÏß»æͼ");
plot = rtgui_plot_create();
curve1 = rtgui_plot_curve_create();
rtgui_plot_curve_set_y(curve1, sin_ydata);
RTGUI_MV_MODEL(curve1)->length = sizeof(sin_ydata)/sizeof(sin_ydata[0]);
curve1->min_x = 0;
curve1->max_x = sizeof(sin_ydata)/sizeof(sin_ydata[0]);
curve1->min_y = -100;
curve1->min_y = 100;
curve1->color = red;
rtgui_mv_model_add_view(RTGUI_MV_MODEL(curve1), RTGUI_MV_VIEW(plot));
curve2 = rtgui_plot_curve_create();
rtgui_plot_curve_set_y(curve2, cos_ydata);
RTGUI_MV_MODEL(curve2)->length = sizeof(cos_ydata)/sizeof(cos_ydata[0]);
curve2->min_x = 0;
curve2->max_x = sizeof(cos_ydata)/sizeof(cos_ydata[0]);
curve1->min_y = -50;
curve1->min_y = 50;
curve2->color = blue;
rtgui_mv_model_add_view(RTGUI_MV_MODEL(curve2), RTGUI_MV_VIEW(plot));
curve3 = rtgui_plot_curve_create();
rtgui_plot_curve_set_x(curve3, cos_ydata);
rtgui_plot_curve_set_y(curve3, sin_ydata);
RTGUI_MV_MODEL(curve3)->length = sizeof(sin_ydata)/sizeof(sin_ydata[0]);
curve3->color = black;
rtgui_mv_model_add_view(RTGUI_MV_MODEL(curve3), RTGUI_MV_VIEW(plot));
rtgui_widget_get_rect(RTGUI_WIDGET(cnt), &rect);
rtgui_widget_set_rect(RTGUI_WIDGET(plot), &rect);
rtgui_plot_set_base(plot,
-rtgui_rect_width(rect)/3, rtgui_rect_height(rect)/2);
rtgui_container_add_child(cnt, RTGUI_WIDGET(plot));
return cnt;
}
static void _rtgui_plot_update_scale(struct rtgui_plot *plot)
{
struct rtgui_plot_curve *curve;
struct rtgui_rect rect;
rtgui_plot_curve_dtype max_x = 0;
rtgui_plot_curve_dtype min_x = 0;
rtgui_plot_curve_dtype max_y = 0;
rtgui_plot_curve_dtype min_y = 0;
rt_uint32_t iter = 0;
rtgui_widget_get_rect(RTGUI_WIDGET(plot), &rect);
curve = RTGUI_PLOT_CURVE(
rtgui_mv_view_foreach_in_model(RTGUI_MV_VIEW(plot), &iter));
max_x = curve->max_x;
min_x = curve->min_x;
max_y = curve->max_y;
min_y = curve->min_y;
while (curve)
{
if (curve->max_x > max_x)
max_x = curve->max_x;
if (curve->min_x < min_x)
min_x = curve->min_x;
if (curve->max_y > max_y)
max_y = curve->max_y;
if (curve->min_y < min_y)
min_y = curve->min_y;
curve = RTGUI_PLOT_CURVE(
rtgui_mv_view_foreach_in_model(RTGUI_MV_VIEW(plot), &iter));
}
plot->scale_x = (max_x - min_x + rtgui_rect_width(rect)) / rtgui_rect_width(rect);
plot->scale_y = (max_y - min_y + rtgui_rect_height(rect)) / rtgui_rect_height(rect);
}
void rtgui_plot_destroy(struct rtgui_plot *plot)
{
rtgui_mv_view_destroy(RTGUI_MV_VIEW(plot));
}
struct rtgui_mv_view *rtgui_mv_view_create(void)
{
return RTGUI_MV_VIEW(rtgui_widget_create(RTGUI_MV_VIEW_TYPE));
}
