/**
* igt_paint_test_pattern:
* @cr: cairo drawing context
* @width: width of the visible area
* @height: height of the visible area
*
* This functions draws an entire set of test patterns for the given visible
* area using the drawing context @cr. This is useful for manual visual
* inspection of displayed framebuffers.
*
* The test patterns include
* - corner markers to check for over/underscan and
* - a set of color and b/w gradients.
*/
void igt_paint_test_pattern(cairo_t *cr, int width, int height)
{
paint_test_patterns(cr, width, height);
cairo_set_line_cap(cr, CAIRO_LINE_CAP_SQUARE);
/* Paint corner markers */
paint_marker(cr, 0, 0);
paint_marker(cr, width, 0);
paint_marker(cr, 0, height);
paint_marker(cr, width, height);
igt_assert(!cairo_status(cr));
}
/**
根据共享数组，刷新显示
*/
G_MODULE_EXPORT
int paint(GtkWidget *widget, GdkEvent *event, gpointer data)
{
cairo_t *cr;
int i;
double y;
cr = gdk_cairo_create (widget->window);
paint_bg(cr);
//画图（蓝色）
cairo_set_line_width(cr, 1);
cairo_set_source_rgb(cr, 0, 0, 1);
y = TOY(buffer[0])>500 ? 500 : TOY(buffer[0]);
cairo_move_to(cr, 0, TOY(buffer[0]));
for (i=1; i<512; i++) {
//y轴分为10个div，每个div包含50个点
//因此每1dBm对应的y坐标应该为50/ydiv
//y = (cfg.yref+buffer[i-1]);//dBm值
//y *= -1*50/cfg.ydiv;//坐标值
y = power2axis(buffer[i-1]);
cairo_line_to(cr, i-1, y>500?500:y);
}
cairo_stroke(cr);
paint_marker(cr);
cairo_destroy(cr);
return TRUE;
}
G_MODULE_EXPORT
void btn_save_cb(GtkButton *btn, gpointer data)
{
cairo_t *cr;
cairo_surface_t *surface;
int i;
double y;
surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 512, 500);
cr = cairo_create (surface);
paint_bg(cr);
paint_marker(cr);
//画图（蓝色）
cairo_set_line_width(cr, 1);
cairo_set_source_rgb(cr, 0, 0, 1);
y = TOY(buffer[0])>500 ? 500 : TOY(buffer[0]);
cairo_move_to(cr, 0, TOY(buffer[0]));
for (i=1; i<512; i++) {
y = cfg.yref + yscale*TOY(buffer[i-1]);
//cairo_line_to(cr, i-1, cfg.yref+yscale*TOY(buffer[i-1]));
cairo_line_to(cr, i-1, y>500?500:y);
}
cairo_stroke(cr);
cairo_surface_write_to_png(surface, "save.png");
cairo_destroy(cr);
cairo_surface_destroy(surface);
}
void MarkerColumn::draw(const Point& p_pos,const Size& p_size,const Rect& p_exposed) {
Painter &p=*get_painter();
p.draw_fill_rect(Point(),p_size,color(COLOR_GLOBAL_VIEW_BG));
int beat_from=global_view->get_beat_at_pixel(0);
int beat_to=global_view->get_beat_at_pixel(p_size.height);
for (int i=beat_from;i<=beat_to;i++) {
// DRAW MARK
if (i==inside_beat && inside) {
int h=global_view->get_beat_pixel( i );
p.draw_fill_rect(Point(0,h),Size(p_size.width,1),color(COLOR_GLOBAL_VIEW_MOUSE_OVER_BEAT));
}
int marker_idx=marker_list->get_exact_index( i );
if (marker_idx>=0) { //marker at pos
paint_marker(p,marker_idx,p_size.width);
}
}
// Paint markers that may not be visible
if (marker_list->get_exact_index( beat_from )==INVALID_STREAM_INDEX && marker_list->get_prev_index( beat_from )>=0) {
paint_marker(p, marker_list->get_prev_index( beat_from ),p_size.width );
}
int line_pos=p_size.width-1;
p.draw_fill_rect(Point(line_pos,0),Size(1,p_size.height),color(COLOR_GLOBAL_VIEW_SEPARATOR));
}
