Pileus Git - grits/blob - src/plugins/test.c

   1 /*
   2  * Copyright (C) 2009-2011 Andy Spencer <andy753421@gmail.com>
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 /**
  19  * SECTION:test
  20  * @short_description: Testing plugin
  21  *
  22  * #GritsPluginTest is a testing plugin used during development and as an example
  23  * for how to create a plugin.
  24  */
  25
  26 #include <string.h>
  27
  28 #include <gdk/gdkkeysyms.h>
  29 #include <grits.h>
  30
  31 #include "test.h"
  32
  33 static gboolean on_poly_enter(GritsPoly *poly)
  34 {
  35         g_debug("GritsPluginTest: on_poly_enter");
  36         poly->color[3] = 0.50;
  37         grits_object_queue_draw(GRITS_OBJECT(poly));
  38         return FALSE;
  39 }
  40
  41 static gboolean on_poly_leave(GritsPoly *poly)
  42 {
  43         g_debug("GritsPluginTest: on_poly_leave");
  44         poly->color[3] = 0.2;
  45         grits_object_queue_draw(GRITS_OBJECT(poly));
  46         return FALSE;
  47 }
  48
  49 static gboolean on_poly_button(GritsPoly *poly, GdkEventButton *event)
  50 {
  51         g_debug("GritsPluginTest: on_poly_button");
  52         static int i = 0;
  53         gdouble colors[][3] = {
  54                 {1, 0, 0}, {1, 1, 0},
  55                 {0, 1, 0}, {0, 1, 1},
  56                 {0, 0, 1}, {1, 0, 1},
  57         };
  58         int idx = i++ % G_N_ELEMENTS(colors);
  59         memcpy(poly->color, colors[idx], sizeof(gdouble)*3);
  60         grits_object_queue_draw(GRITS_OBJECT(poly));
  61         return TRUE;
  62 }
  63
  64 static gboolean on_poly_key(GritsPoly *poly, GdkEventKey *event)
  65 {
  66         g_debug("GritsPluginTest: on_poly_key - %d", event->keyval);
  67         gdouble colors[0xff][3] = {
  68                 [GDK_KEY_r] {1, 0, 0},
  69                 [GDK_KEY_g] {0, 1, 0},
  70                 [GDK_KEY_b] {0, 0, 1},
  71         };
  72         if (event->keyval >= G_N_ELEMENTS(colors))
  73                 return FALSE;
  74         int key = event->keyval;
  75         memcpy(poly->color, colors[key], sizeof(gdouble)*3);
  76         grits_object_queue_draw(GRITS_OBJECT(poly));
  77         return TRUE;
  78 }
  79
  80 static gboolean on_marker_button(GritsMarker *marker, GdkEventButton *event)
  81 {
  82         g_debug("GritsPluginTest: on_marker_button");
  83         GtkWidget *dialog = gtk_dialog_new_with_buttons(
  84                         "St. Charles!", NULL, 0, GTK_STOCK_OK, GTK_RESPONSE_OK, NULL);
  85         gtk_dialog_run(GTK_DIALOG(dialog));
  86         return TRUE;
  87 }
  88
  89 /***********
  90  * Methods *
  91  ***********/
  92 void _load_marker(GritsPluginTest *test)
  93 {
  94         test->marker = grits_marker_new("St. Charles");
  95         GRITS_OBJECT(test->marker)->center.lat  =  38.841847;
  96         GRITS_OBJECT(test->marker)->center.lon  = -90.491982;
  97         GRITS_OBJECT(test->marker)->center.elev =   0.0;
  98         GRITS_OBJECT(test->marker)->lod         = EARTH_R*3;
  99         grits_object_set_cursor(GRITS_OBJECT(test->marker), GDK_HAND2);
 100         grits_viewer_add(test->viewer, GRITS_OBJECT(test->marker), GRITS_LEVEL_HUD, FALSE);
 101         g_signal_connect(test->marker, "clicked", G_CALLBACK(on_marker_button), test->viewer);
 102 }
 103
 104 void _load_poly(GritsPluginTest *test)
 105 {
 106         test->poly = grits_poly_parse("35,-90 35,-110 45,-110 45,-90", "\t", " ", ",");
 107         test->poly->color[0]  = test->poly->border[0] = 1;
 108         test->poly->color[1]  = test->poly->border[1] = 0;
 109         test->poly->color[2]  = test->poly->border[2] = 0;
 110         test->poly->color[3]  = 0.2;
 111         test->poly->border[3] = 1;
 112         test->poly->width     = 6;
 113         grits_viewer_add(test->viewer, GRITS_OBJECT(test->poly),  GRITS_LEVEL_OVERLAY, FALSE);
 114         g_signal_connect(test->poly, "enter",     G_CALLBACK(on_poly_enter),  NULL);
 115         g_signal_connect(test->poly, "leave",     G_CALLBACK(on_poly_leave),  NULL);
 116         g_signal_connect(test->poly, "clicked",   G_CALLBACK(on_poly_button), NULL);
 117         g_signal_connect(test->poly, "key-press", G_CALLBACK(on_poly_key),    NULL);
 118 }
 119
 120 void _load_line(GritsPluginTest *test)
 121 {
 122         test->line = grits_line_parse("30,-80 30,-120 50,-120 50,-80", "\t", " ", ",");
 123         test->line->color[0]  = 1;
 124         test->line->color[1]  = 0;
 125         test->line->color[2]  = 0;
 126         test->line->color[3]  = 1;
 127         test->line->width     = 8;
 128         grits_viewer_add(test->viewer, GRITS_OBJECT(test->line),  GRITS_LEVEL_OVERLAY, FALSE);
 129         g_signal_connect(test->line, "enter",        G_CALLBACK(on_poly_enter),  NULL);
 130         g_signal_connect(test->line, "leave",        G_CALLBACK(on_poly_leave),  NULL);
 131         g_signal_connect(test->line, "button-press", G_CALLBACK(on_poly_button), NULL);
 132         g_signal_connect(test->line, "key-press",    G_CALLBACK(on_poly_key),    NULL);
 133 }
 134
 135 /**
 136  * grits_plugin_test_new:
 137  * @viewer: the #GritsViewer to use for drawing
 138  *
 139  * Create a new instance of the testing plugin.
 140  *
 141  * Returns: the new #GritsPluginTest
 142  */
 143 GritsPluginTest *grits_plugin_test_new(GritsViewer *viewer)
 144 {
 145         g_debug("GritsPluginTest: new");
 146         GritsPluginTest *test = g_object_new(GRITS_TYPE_PLUGIN_TEST, NULL);
 147         test->viewer = g_object_ref(viewer);
 148         _load_marker(test);
 149         _load_poly(test);
 150         _load_line(test);
 151         return test;
 152 }
 153
 154
 155 /****************
 156  * GObject code *
 157  ****************/
 158 /* Plugin init */
 159 static void grits_plugin_test_plugin_init(GritsPluginInterface *iface);
 160 G_DEFINE_TYPE_WITH_CODE(GritsPluginTest, grits_plugin_test, G_TYPE_OBJECT,
 161                 G_IMPLEMENT_INTERFACE(GRITS_TYPE_PLUGIN,
 162                         grits_plugin_test_plugin_init));
 163 static void grits_plugin_test_plugin_init(GritsPluginInterface *iface)
 164 {
 165         g_debug("GritsPluginTest: plugin_init");
 166         /* Add methods to the interface */
 167 }
 168 /* Class/Object init */
 169 static void grits_plugin_test_init(GritsPluginTest *test)
 170 {
 171         g_debug("GritsPluginTest: init");
 172 }
 173 static void grits_plugin_test_dispose(GObject *_test)
 174 {
 175         g_debug("GritsPluginTest: dispose");
 176         GritsPluginTest *test = GRITS_PLUGIN_TEST(_test);
 177         if (test->viewer) {
 178                 GritsViewer *viewer = test->viewer;
 179                 test->viewer = NULL;
 180                 grits_viewer_remove(viewer, GRITS_OBJECT(test->marker));
 181                 grits_viewer_remove(viewer, GRITS_OBJECT(test->poly));
 182                 grits_viewer_remove(viewer, GRITS_OBJECT(test->line));
 183                 g_object_unref(test->marker);
 184                 g_object_unref(test->poly);
 185                 g_object_unref(test->line);
 186                 g_object_unref(viewer);
 187         }
 188         G_OBJECT_CLASS(grits_plugin_test_parent_class)->dispose(_test);
 189 }
 190 static void grits_plugin_test_class_init(GritsPluginTestClass *klass)
 191 {
 192         g_debug("GritsPluginTest: class_init");
 193         GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
 194         gobject_class->dispose = grits_plugin_test_dispose;
 195 }