X-Git-Url: https://git.street.me.uk/andy/viking.git/blobdiff_plain/d9ffd2671d8c0720e0f3ebe3791213e707f674ba..80471a6a905e00bf80ad04fa2061f88ea81f15cb:/src/vikviewport.c?ds=sidebyside

diff --git a/src/vikviewport.c b/src/vikviewport.c
index b20646c1..7743ebbd 100644
--- a/src/vikviewport.c
+++ b/src/vikviewport.c
@@ -31,14 +31,13 @@
 
 #include "coords.h"
 #include "vikcoord.h"
+#include "vikwindow.h"
 #include "vikviewport.h"
 
 #include "mapcoord.h"
 
 /* for ALTI_TO_MPP */
 #include "globals.h"
-#include "googlemaps.h"
-#include "khmaps.h"
 
 static gdouble EASTING_OFFSET = 500000.0;
 
@@ -56,8 +55,6 @@ static void viewport_init_ra();
 
 static GObjectClass *parent_class;
 
-static void viewport_google_rezoom ( VikViewport *vvp );
-
 
 struct _VikViewport {
   GtkDrawingArea drawing_area;
@@ -76,7 +73,9 @@ struct _VikViewport {
 
   GdkGC *background_gc;
   GdkColor background_color;
+  GdkGC *scale_bg_gc;
   gboolean draw_scale;
+  gboolean draw_centermark;
 
   /* subset of coord types. lat lon can be plotted in 2 ways, google or exp. */
   VikViewportDrawMode drawmode;
@@ -86,6 +85,11 @@ struct _VikViewport {
   gdouble google_calcy_fact;
   gdouble google_calcx_rev_fact;
   gdouble google_calcy_rev_fact;
+
+  /* trigger stuff */
+  gpointer trigger;
+  GdkPixmap *snapshot_buffer;
+  gboolean half_drawn;
 };
 
 static gdouble
@@ -145,7 +149,8 @@ static void viewport_class_init ( VikViewportClass *klass )
 
 VikViewport *vik_viewport_new ()
 {
-  return VIK_VIEWPORT ( g_object_new ( VIK_VIEWPORT_TYPE, NULL ) );
+  VikViewport *vv = VIK_VIEWPORT ( g_object_new ( VIK_VIEWPORT_TYPE, NULL ) );
+  return vv;
 }
 
 static void viewport_init ( VikViewport *vvp )
@@ -155,10 +160,11 @@ static void viewport_init ( VikViewport *vvp )
   /* TODO: not static */
   vvp->xmpp = 4.0;
   vvp->ympp = 4.0;
-  vvp->coord_mode = VIK_COORD_UTM;
-  vvp->drawmode = VIK_VIEWPORT_DRAWMODE_UTM;
-  vvp->center.north_south = 0;
-  vvp->center.east_west = -166021;
+  vvp->coord_mode = VIK_COORD_LATLON;
+  vvp->drawmode = VIK_VIEWPORT_DRAWMODE_MERCATOR;
+  vvp->center.mode = VIK_COORD_LATLON;
+  vvp->center.north_south = 40.714490;
+  vvp->center.east_west = -74.007130;
   vvp->center.utm_zone = 31;
   vvp->center.utm_letter = 'N';
   vvp->scr_buffer = NULL;
@@ -166,8 +172,17 @@ static void viewport_init ( VikViewport *vvp )
   vvp->alpha_pixbuf_width = vvp->alpha_pixbuf_height = 0;
   vvp->utm_zone_width = 0.0;
   vvp->background_gc = NULL;
+  vvp->scale_bg_gc = NULL;
   vvp->draw_scale = TRUE;
+  vvp->draw_centermark = TRUE;
+
+  vvp->trigger = NULL;
+  vvp->snapshot_buffer = NULL;
+  vvp->half_drawn = FALSE;
+
   g_signal_connect (G_OBJECT(vvp), "configure_event", G_CALLBACK(vik_viewport_configure), NULL);
+
+  GTK_WIDGET_SET_FLAGS(vvp, GTK_CAN_FOCUS); /* allow VVP to have focus -- enabling key events, etc */
 }
 
 GdkColor *vik_viewport_get_background_gdkcolor ( VikViewport *vvp )
@@ -229,6 +244,11 @@ void vik_viewport_configure_manually ( VikViewport *vvp, gint width, guint heigh
   if ( vvp->scr_buffer )
     g_object_unref ( G_OBJECT ( vvp->scr_buffer ) );
   vvp->scr_buffer = gdk_pixmap_new ( GTK_WIDGET(vvp)->window, vvp->width, vvp->height, -1 );
+
+  /* TODO trigger: only if this is enabled !!! */
+  if ( vvp->snapshot_buffer )
+    g_object_unref ( G_OBJECT ( vvp->snapshot_buffer ) );
+  vvp->snapshot_buffer = gdk_pixmap_new ( GTK_WIDGET(vvp)->window, vvp->width, vvp->height, -1 );
 }
 
 
@@ -249,12 +269,22 @@ gboolean vik_viewport_configure ( VikViewport *vvp )
 
   vvp->scr_buffer = gdk_pixmap_new ( GTK_WIDGET(vvp)->window, vvp->width, vvp->height, -1 );
 
+  /* TODO trigger: only if enabled! */
+  if ( vvp->snapshot_buffer )
+    g_object_unref ( G_OBJECT ( vvp->snapshot_buffer ) );
+
+  vvp->snapshot_buffer = gdk_pixmap_new ( GTK_WIDGET(vvp)->window, vvp->width, vvp->height, -1 );
+  /* TODO trigger */
+
   /* this is down here so it can get a GC (necessary?) */
   if ( ! vvp->background_gc )
   {
     vvp->background_gc = vik_viewport_new_gc ( vvp, "", 1 );
     vik_viewport_set_background_color ( vvp, DEFAULT_BACKGROUND_COLOR ); /* set to "backup" color in vvp->background_color */
   }
+  if ( !vvp->scale_bg_gc) {
+    vvp->scale_bg_gc = vik_viewport_new_gc(vvp, "grey", 3);
+  }
 
   return FALSE;	
 }
@@ -268,12 +298,20 @@ static void viewport_finalize ( GObject *gob )
   if ( vvp->scr_buffer )
     g_object_unref ( G_OBJECT ( vvp->scr_buffer ) );
 
+  if ( vvp->snapshot_buffer )
+    g_object_unref ( G_OBJECT ( vvp->snapshot_buffer ) );
+
   if ( vvp->alpha_pixbuf )
     g_object_unref ( G_OBJECT ( vvp->alpha_pixbuf ) );
 
   if ( vvp->background_gc )
     g_object_unref ( G_OBJECT ( vvp->background_gc ) );
 
+  if ( vvp->scale_bg_gc ) {
+    g_object_unref ( G_OBJECT ( vvp->scale_bg_gc ) );
+    vvp->scale_bg_gc = NULL;
+  }
+
   G_OBJECT_CLASS(parent_class)->finalize(gob);
 }
 
@@ -326,6 +364,14 @@ void vik_viewport_draw_scale ( VikViewport *vvp )
     unit = old_unit;
     len = unit * ratio;
 
+    /* white background */
+    vik_viewport_draw_line(vvp, vvp->scale_bg_gc, 
+			 PAD, vvp->height-PAD, PAD + len, vvp->height-PAD);
+    vik_viewport_draw_line(vvp, vvp->scale_bg_gc,
+			 PAD, vvp->height-PAD, PAD, vvp->height-PAD-HEIGHT);
+    vik_viewport_draw_line(vvp, vvp->scale_bg_gc,
+			 PAD + len, vvp->height-PAD, PAD + len, vvp->height-PAD-HEIGHT);
+    /* black scale */
     vik_viewport_draw_line(vvp, GTK_WIDGET(&vvp->drawing_area)->style->black_gc, 
 			 PAD, vvp->height-PAD, PAD + len, vvp->height-PAD);
     vik_viewport_draw_line(vvp, GTK_WIDGET(&vvp->drawing_area)->style->black_gc, 
@@ -335,12 +381,16 @@ void vik_viewport_draw_scale ( VikViewport *vvp )
     if (odd%2) {
       int i;
       for (i=1; i<5; i++) {
+        vik_viewport_draw_line(vvp, vvp->scale_bg_gc, 
+			     PAD+i*len/5, vvp->height-PAD, PAD+i*len/5, vvp->height-PAD-((i==5)?(2*HEIGHT/3):(HEIGHT/2)));
         vik_viewport_draw_line(vvp, GTK_WIDGET(&vvp->drawing_area)->style->black_gc, 
 			     PAD+i*len/5, vvp->height-PAD, PAD+i*len/5, vvp->height-PAD-((i==5)?(2*HEIGHT/3):(HEIGHT/2)));
       }
     } else {
       int i;
       for (i=1; i<10; i++) {
+        vik_viewport_draw_line(vvp, vvp->scale_bg_gc,
+  			     PAD+i*len/10, vvp->height-PAD, PAD+i*len/10, vvp->height-PAD-((i==5)?(2*HEIGHT/3):(HEIGHT/2)));
         vik_viewport_draw_line(vvp, GTK_WIDGET(&vvp->drawing_area)->style->black_gc, 
   			     PAD+i*len/10, vvp->height-PAD, PAD+i*len/10, vvp->height-PAD-((i==5)?(2*HEIGHT/3):(HEIGHT/2)));
       }
@@ -361,6 +411,40 @@ void vik_viewport_draw_scale ( VikViewport *vvp )
   }
 }
 
+void vik_viewport_set_draw_centermark ( VikViewport *vvp, gboolean draw_centermark )
+{
+  vvp->draw_centermark = draw_centermark;
+}
+
+gboolean vik_viewport_get_draw_centermark ( VikViewport *vvp )
+{
+  return vvp->draw_centermark;
+}
+
+void vik_viewport_draw_centermark ( VikViewport *vvp )
+{
+  if ( !vvp->draw_centermark )
+    return;
+
+  const int len = 30;
+  const int gap = 4;
+  int center_x = vvp->width/2;
+  int center_y = vvp->height/2;
+  GdkGC * black_gc = GTK_WIDGET(&vvp->drawing_area)->style->black_gc;
+
+  /* white back ground */
+  vik_viewport_draw_line(vvp, vvp->scale_bg_gc, center_x - len, center_y, center_x - gap, center_y);
+  vik_viewport_draw_line(vvp, vvp->scale_bg_gc, center_x + gap, center_y, center_x + len, center_y);
+  vik_viewport_draw_line(vvp, vvp->scale_bg_gc, center_x, center_y - len, center_x, center_y - gap);
+  vik_viewport_draw_line(vvp, vvp->scale_bg_gc, center_x, center_y + gap, center_x, center_y + len);
+  /* black fore ground */
+  vik_viewport_draw_line(vvp, black_gc, center_x - len, center_y, center_x - gap, center_y);
+  vik_viewport_draw_line(vvp, black_gc, center_x + gap, center_y, center_x + len, center_y);
+  vik_viewport_draw_line(vvp, black_gc, center_x, center_y - len, center_x, center_y - gap);
+  vik_viewport_draw_line(vvp, black_gc, center_x, center_y + gap, center_x, center_y + len);
+  
+}
+
 void vik_viewport_sync ( VikViewport *vvp )
 {
   g_return_if_fail ( vvp != NULL );
@@ -400,8 +484,6 @@ void vik_viewport_set_zoom ( VikViewport *vvp, gdouble xympp )
 
   if ( vvp->drawmode == VIK_VIEWPORT_DRAWMODE_UTM )
     viewport_utm_zone_check(vvp);
-  else if ( vvp->drawmode == VIK_VIEWPORT_DRAWMODE_GOOGLE )
-    viewport_google_rezoom ( vvp );
 }
 
 /* or could do factor */
@@ -413,9 +495,6 @@ void vik_viewport_zoom_in ( VikViewport *vvp )
     vvp->xmpp /= 2;
     vvp->ympp /= 2;
 
-    if ( vvp->drawmode == VIK_VIEWPORT_DRAWMODE_GOOGLE )
-      viewport_google_rezoom ( vvp );
-
     viewport_utm_zone_check(vvp);
   }
 }
@@ -428,9 +507,6 @@ void vik_viewport_zoom_out ( VikViewport *vvp )
     vvp->xmpp *= 2;
     vvp->ympp *= 2;
 
-    if ( vvp->drawmode == VIK_VIEWPORT_DRAWMODE_GOOGLE )
-      viewport_google_rezoom ( vvp );
-
     viewport_utm_zone_check(vvp);
   }
 }
@@ -458,8 +534,6 @@ void vik_viewport_set_xmpp ( VikViewport *vvp, gdouble xmpp )
     vvp->xmpp = xmpp;
     if ( vvp->drawmode == VIK_VIEWPORT_DRAWMODE_UTM )
       viewport_utm_zone_check(vvp);
-    if ( vvp->drawmode == VIK_VIEWPORT_DRAWMODE_GOOGLE )
-      viewport_google_rezoom ( vvp );
   }
 }
 
@@ -469,8 +543,6 @@ void vik_viewport_set_ympp ( VikViewport *vvp, gdouble ympp )
     vvp->ympp = ympp;
     if ( vvp->drawmode == VIK_VIEWPORT_DRAWMODE_UTM )
       viewport_utm_zone_check(vvp);
-    if ( vvp->drawmode == VIK_VIEWPORT_DRAWMODE_GOOGLE )
-      viewport_google_rezoom ( vvp );
   }
 }
 
@@ -614,14 +686,7 @@ void vik_viewport_screen_to_coord ( VikViewport *vvp, int x, int y, VikCoord *co
     coord->mode = VIK_COORD_LATLON;
     if ( vvp->drawmode == VIK_VIEWPORT_DRAWMODE_EXPEDIA )
       calcxy_rev(&(coord->east_west), &(coord->north_south), x, y, vvp->center.east_west, vvp->center.north_south, vvp->xmpp * ALTI_TO_MPP, vvp->ympp * ALTI_TO_MPP, vvp->width/2, vvp->height/2);
-    else if ( vvp->drawmode == VIK_VIEWPORT_DRAWMODE_GOOGLE ) {
-      /* google */
-      coord->east_west = (x - (vvp->width/2)) * vvp->google_calcx_rev_fact + vvp->center.east_west;
-      coord->north_south = ((vvp->height/2) - y) * vvp->google_calcy_rev_fact + vvp->center.north_south;
-    } else if ( vvp->drawmode == VIK_VIEWPORT_DRAWMODE_KH ) {
-      coord->east_west = vvp->center.east_west + (180.0 * vvp->xmpp / 65536 / 256 * (x - vvp->width/2));
-      coord->north_south = vvp->center.north_south + (180.0 * vvp->ympp / 65536 / 256 * (vvp->height/2 - y));
-    } else if ( vvp->drawmode == VIK_VIEWPORT_DRAWMODE_MERCATOR ) {
+    else if ( vvp->drawmode == VIK_VIEWPORT_DRAWMODE_MERCATOR ) {
       /* FIXMERCATOR */
       coord->east_west = vvp->center.east_west + (180.0 * vvp->xmpp / 65536 / 256 * (x - vvp->width/2));
       coord->north_south = DEMERCLAT ( MERCLAT(vvp->center.north_south) + (180.0 * vvp->ympp / 65536 / 256 * (vvp->height/2 - y)) );
@@ -668,14 +733,6 @@ void vik_viewport_coord_to_screen ( VikViewport *vvp, const VikCoord *coord, int
     if ( vvp->drawmode == VIK_VIEWPORT_DRAWMODE_EXPEDIA ) {
       calcxy ( &xx, &yy, center->lon, center->lat, ll->lon, ll->lat, vvp->xmpp * ALTI_TO_MPP, vvp->ympp * ALTI_TO_MPP, vvp->width / 2, vvp->height / 2 );
       *x = xx; *y = yy;
-    } else if ( vvp->drawmode == VIK_VIEWPORT_DRAWMODE_GOOGLE ) {
-      /* google */
-      *x = vvp->google_calcx_fact * (ll->lon - center->lon) + (vvp->width/2);
-      *y = vvp->google_calcy_fact * (center->lat - ll->lat) + (vvp->height/2);
-    } else if ( vvp->drawmode == VIK_VIEWPORT_DRAWMODE_KH ) {
-      /* subtract, convert to KH coords; blow it up by 256 */
-      *x = vvp->width/2 + (65536.0 / 180 / vvp->xmpp * (ll->lon - center->lon))*256.0;
-      *y = vvp->height/2 + (65536.0 / 180 / vvp->ympp * (center->lat - ll->lat))*256.0;
     } else if ( vvp->drawmode == VIK_VIEWPORT_DRAWMODE_MERCATOR ) {
       /* FIXMERCATOR: Optimize */
       *x = vvp->width/2 + (65536.0 / 180 / vvp->xmpp * (ll->lon - center->lon))*256.0;
@@ -698,7 +755,7 @@ void a_viewport_clip_line ( gint *x1, gint *y1, gint *x2, gint *y2 )
     gdouble shrinkfactor = ABS(20000.0 / (gdouble)*x2);
     *x2 = *x1 + (shrinkfactor * (*x2-*x1));
     *y2 = *y1 + (shrinkfactor * (*y2-*y1));
-    printf("%f, %d, %d\n", shrinkfactor, *x2, *y2);
+    g_print("%f, %d, %d\n", shrinkfactor, *x2, *y2);
   } else if ( *y2 > 20000 || *y2 < -20000 ) {
     gdouble shrinkfactor = ABS(20000.0 / (gdouble)*x2);
     *x2 = *x1 + (shrinkfactor * (*x2-*x1));
@@ -929,8 +986,6 @@ void vik_viewport_set_drawmode ( VikViewport *vvp, VikViewportDrawMode drawmode
     viewport_set_coord_mode ( vvp, VIK_COORD_UTM );
   else {
     viewport_set_coord_mode ( vvp, VIK_COORD_LATLON );
-    if ( drawmode == VIK_VIEWPORT_DRAWMODE_GOOGLE )
-      viewport_google_rezoom ( vvp );
   }
 }
 
@@ -939,10 +994,71 @@ VikViewportDrawMode vik_viewport_get_drawmode ( VikViewport *vvp )
   return vvp->drawmode;
 }
 
-static void viewport_google_rezoom ( VikViewport *vvp )
+/******** triggering *******/
+void vik_viewport_set_trigger ( VikViewport *vp, gpointer trigger )
+{
+  vp->trigger = trigger;
+}
+
+gpointer vik_viewport_get_trigger ( VikViewport *vp )
+{
+  return vp->trigger;
+}
+
+void vik_viewport_snapshot_save ( VikViewport *vp )
+{
+  gdk_draw_drawable ( vp->snapshot_buffer, vp->background_gc, vp->scr_buffer, 0, 0, 0, 0, -1, -1 );
+}
+
+void vik_viewport_snapshot_load ( VikViewport *vp )
+{
+  gdk_draw_drawable ( vp->scr_buffer, vp->background_gc, vp->snapshot_buffer, 0, 0, 0, 0, -1, -1 );
+}
+
+void vik_viewport_set_half_drawn(VikViewport *vp, gboolean half_drawn)
 {
-  vvp->google_calcx_fact = (GOOGLEMAPS_ZOOM_ONE_MPP * 65536.0 * 0.7716245833877 / vvp->xmpp);
-  vvp->google_calcy_fact = (GOOGLEMAPS_ZOOM_ONE_MPP * 65536.0 / vvp->ympp);
-  vvp->google_calcx_rev_fact = 1 / vvp->google_calcx_fact;
-  vvp->google_calcy_rev_fact = 1 / vvp->google_calcy_fact;
+  vp->half_drawn = half_drawn;
+}
+
+gboolean vik_viewport_get_half_drawn( VikViewport *vp )
+{
+  return vp->half_drawn;
+}
+
+
+const gchar *vik_viewport_get_drawmode_name(VikViewport *vv, VikViewportDrawMode mode)
+ {
+  const gchar *name = NULL;
+  VikWindow *vw = NULL;
+  GtkWidget *mode_button;
+  GtkWidget *label;
+  
+  vw = VIK_WINDOW_FROM_WIDGET(vv);
+  mode_button = vik_window_get_drawmode_button(vw, mode);
+  label = gtk_bin_get_child(GTK_BIN(mode_button));
+
+  name = gtk_label_get_text ( GTK_LABEL(label) );
+
+  return name;
+
+}
+
+void vik_viewport_get_min_max_lat_lon ( VikViewport *vp, gdouble *min_lat, gdouble *max_lat, gdouble *min_lon, gdouble *max_lon )
+{
+  VikCoord tleft, tright, bleft, bright;
+
+  vik_viewport_screen_to_coord ( vp, 0, 0, &tleft );
+  vik_viewport_screen_to_coord ( vp, vik_viewport_get_width(vp), 0, &tright );
+  vik_viewport_screen_to_coord ( vp, 0, vik_viewport_get_height(vp), &bleft );
+  vik_viewport_screen_to_coord ( vp, vp->width, vp->height, &bright );
+
+  vik_coord_convert(&tleft, VIK_COORD_LATLON);
+  vik_coord_convert(&tright, VIK_COORD_LATLON);
+  vik_coord_convert(&bleft, VIK_COORD_LATLON);
+  vik_coord_convert(&bright, VIK_COORD_LATLON);
+
+  *max_lat = MAX(tleft.north_south, tright.north_south);
+  *min_lat = MIN(bleft.north_south, bright.north_south);
+  *max_lon = MAX(tright.east_west, bright.east_west);
+  *min_lon = MIN(tleft.east_west, bleft.east_west);
 }