/**************************************************************************
Put the popup on a smart position, after the real size of the widget is
known: left of the cursor if within the right half of the map, and vice
versa; displace the popup so as not to obscure it by the mouse cursor;
stay always within the map if possible.
**************************************************************************/
static void popupinfo_positioning_callback(GtkWidget *w, GtkAllocation *alloc,
gpointer data)
{
struct tmousepos *mousepos = data;
gint x, y;
struct tile *ptile;
ptile = canvas_pos_to_tile(mousepos->x, mousepos->y);
if (tile_to_canvas_pos(&x, &y, ptile)) {
gint minx, miny, maxy;
gdk_window_get_origin(gtk_widget_get_window(map_canvas), &minx, &miny);
maxy = miny + gtk_widget_get_allocated_height(map_canvas);
if (x > mapview.width/2) {
/* right part of the map */
x += minx;
y += miny + (tileset_tile_height(tileset) - alloc->height)/2;
y = CLIP(miny, y, maxy - alloc->height);
gtk_window_move(GTK_WINDOW(w), x - alloc->width, y);
} else {
/* left part of the map */
x += minx + tileset_tile_width(tileset);
y += miny + (tileset_tile_height(tileset) - alloc->height)/2;
y = CLIP(miny, y, maxy - alloc->height);
gtk_window_move(GTK_WINDOW(w), x, y);
}
}
}
/**************************************************************************
Draws a cross-hair overlay on a tile
**************************************************************************/
void put_cross_overlay_tile(struct tile *ptile)
{
int canvas_x, canvas_y;
if (tile_to_canvas_pos(&canvas_x, &canvas_y, ptile)) {
pixmap_put_overlay_tile(XtWindow(map_canvas), canvas_x, canvas_y,
get_attention_crosshair_sprite(tileset));
}
}
