int plotstuff_text_xy(plot_args_t* pargs, double x, double y, const char* label) {
assert(pargs->cairo);
get_text_position(pargs, pargs->cairo, label, &x, &y);
plotstuff_move_to(pargs, x, y);
cairo_show_text(pargs->cairo, label);
return 0;
}
void plotstuff_stack_text(plot_args_t* pargs, cairo_t* cairo,
const char* txt, double px, double py) {
cairocmd_t cmd;
cairocmd_init(&cmd);
set_cmd_args(pargs, &cmd);
get_text_position(pargs, cairo, txt, &px, &py);
cmd.type = TEXT;
if (pargs->bg_rgba[3] > 0) {
int dx, dy;
logverb("Background text RGB [%g, %g, %g] alpha %g\n",
pargs->bg_rgba[0], pargs->bg_rgba[1],
pargs->bg_rgba[2], pargs->bg_rgba[3]);
cmd.layer = pargs->text_bg_layer;
memcpy(cmd.rgba, pargs->bg_rgba, sizeof(cmd.rgba));
for (dy=-1; dy<=1; dy++) {
for (dx=-1; dx<=1; dx++) {
cmd.text = strdup(txt);
cmd.x = px + dx;
cmd.y = py + dy;
add_cmd(pargs, &cmd);
}
}
} else
logverb("No background behind text\n");
cmd.layer = pargs->text_fg_layer;
memcpy(cmd.rgba, pargs->rgba, sizeof(cmd.rgba));
cmd.text = strdup(txt);
cmd.x = px;
cmd.y = py;
add_cmd(pargs, &cmd);
}
int plotstuff_text_radec(plot_args_t* pargs, double ra, double dec, const char* label) {
double x,y;
if (!plotstuff_radec2xy(pargs, ra, dec, &x, &y)) {
ERROR("Failed to convert RA,Dec (%g,%g) to pixel position in plot_text_radec\n", ra, dec);
return -1;
}
assert(pargs->cairo);
//plotstuff_stack_text(pargs, pargs->cairo, label, x, y);
get_text_position(pargs, pargs->cairo, label, &x, &y);
plotstuff_move_to(pargs, x, y);
cairo_show_text(pargs->cairo, label);
return 0;
}
static void draw_area_ui_object (ui_object *obj)
{
float
x,
y,
x1,
y1,
x2,
y2;
int
redraw_flag = FALSE,
masked,
width,
height,
pitch;
font_types
font_id;
area_ui_object
*area;
struct SCREEN
*old_active_screen,
*memory_graphic;
unsigned short int
*graphic;
struct ZOOMABLE_GRAPHIC
*zoomable_graphic;
unsigned char
*data;
ui_object
*parent;
if (get_ui_object_redraw (obj))
{
area = (area_ui_object *) obj->data;
//debug_log ("AR_DRAW: drawing area %f, %f %f, %f", area->x, area->y, area->x_size, area->y_size);
x1 = area->x;
y1 = area->y;
x2 = x1 + area->x_size;
y2 = y1 + area->y_size;
old_active_screen = get_active_screen ();
if (get_ui_object_active_screen (obj))
{
set_active_screen (get_ui_object_active_screen (obj));
}
else
{
set_active_screen (video_screen);
}
if (lock_screen (active_screen))
{
switch (get_ui_object_graphic_type (obj))
{
case UI_OBJECT_GRAPHIC:
{
if (!get_ui_object_clear (obj))
{
graphic = get_ui_object_graphic (obj);
ui_draw_graphic (x1, y1, x2, y2, graphic);
redraw_flag = TRUE;
}
else
{
parent = get_ui_object_parent (obj);
if (parent)
{
graphic = get_ui_object_graphic (parent);
ui_draw_part_graphic (x1, y1, x2, y2, x1, y1, graphic);
redraw_flag = TRUE;
}
}
break;
}
case UI_OBJECT_MEMORY_GRAPHIC:
{
memory_graphic = get_ui_object_memory_graphic (obj);
if (lock_screen (memory_graphic))
{
width = get_screen_width (memory_graphic);
height = get_screen_height (memory_graphic);
data = get_screen_data (memory_graphic);
pitch = get_screen_pitch (memory_graphic);
masked = get_ui_object_clear (obj);
ui_draw_memory_graphic (obj, x1, y1, x2, y2, width, height, pitch, masked);
unlock_screen (memory_graphic);
}
redraw_flag = TRUE;
break;
}
case UI_OBJECT_ALPHA_GRAPHIC:
{
if (!get_ui_object_clear (obj))
{
graphic = get_ui_object_graphic (obj);
ui_draw_alpha_graphic (x1, y1, x2, y2, graphic);
redraw_flag = TRUE;
}
else
{
parent = get_ui_object_parent (obj);
if (parent)
{
graphic = get_ui_object_graphic (parent);
ui_draw_part_alpha_graphic (x1, y1, x2, y2, x1, y1, graphic);
redraw_flag = TRUE;
}
}
break;
}
case UI_OBJECT_ZOOMABLE_PALETTE_GRAPHIC:
{
if (!get_ui_object_clear (obj))
{
zoomable_graphic = get_ui_object_zoomable_palette_graphic (obj);
draw_zoomable_graphic (zoomable_graphic, area->cx, area->cy, x1, y1, x2, y2, area->zoom);
redraw_flag = TRUE;
}
break;
}
case UI_OBJECT_NO_GRAPHIC:
default:
{
if (!get_ui_object_clear (obj))
{
ui_draw_area (x1, y1, x2, y2);
redraw_flag = TRUE;
}
}
}
// text position
if (get_ui_object_text (obj))
{
font_id = get_ui_font ();
set_ui_font (get_ui_object_font (obj));
get_text_position (&x, &y, x1, y1, x2, y2, obj);
ui_display_text (get_ui_object_text (obj), x, y);
set_ui_font (font_id);
redraw_flag = TRUE;
}
if (redraw_flag)
{
set_ui_repaint_area (x1 + ui_x_origin, y1 + ui_y_origin, x2 + ui_x_origin + 1, y2 + ui_y_origin + 1);
}
unlock_screen (active_screen);
}
set_active_screen (old_active_screen);
area->redraw --;
call_ui_object_draw_function (obj, NULL);
}
}
