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/*
* Copyright (C) 2021 James Westman <james@jwestman.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <https://www.gnu.org/licenses/>.
*/
#include "shumate-test-tile-source.h"
struct _ShumateTestTileSource
{
ShumateMapSource parent_instance;
};
G_DEFINE_TYPE (ShumateTestTileSource, shumate_test_tile_source, SHUMATE_TYPE_MAP_SOURCE)
ShumateTestTileSource *
shumate_test_tile_source_new (void)
{
return g_object_new (SHUMATE_TYPE_TEST_TILE_SOURCE,
"id", SHUMATE_MAP_SOURCE_TEST,
"name", "Test Pattern",
NULL);
}
static GdkTexture *
texture_new_for_surface (cairo_surface_t *surface)
{
g_autoptr(GBytes) bytes = NULL;
GdkTexture *texture;
g_return_val_if_fail (cairo_surface_get_type (surface) == CAIRO_SURFACE_TYPE_IMAGE, NULL);
g_return_val_if_fail (cairo_image_surface_get_width (surface) > 0, NULL);
g_return_val_if_fail (cairo_image_surface_get_height (surface) > 0, NULL);
bytes = g_bytes_new_with_free_func (cairo_image_surface_get_data (surface),
(gsize) cairo_image_surface_get_height (surface)
* (gsize) cairo_image_surface_get_stride (surface),
(GDestroyNotify) cairo_surface_destroy,
cairo_surface_reference (surface));
texture = gdk_memory_texture_new (cairo_image_surface_get_width (surface),
cairo_image_surface_get_height (surface),
GDK_MEMORY_B8G8R8A8_PREMULTIPLIED,
bytes,
cairo_image_surface_get_stride (surface));
return texture;
}
static void
shumate_test_tile_source_fill_tile_async (ShumateMapSource *map_source,
ShumateTile *tile,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
g_autoptr(GdkTexture) texture = NULL;
g_autoptr(GTask) task = NULL;
guint tile_size = shumate_tile_get_size (tile);
int x = shumate_tile_get_x (tile), y = shumate_tile_get_y (tile);
int zoom = shumate_tile_get_zoom_level (tile);
int max_zoom = shumate_map_source_get_max_zoom_level (map_source);
cairo_surface_t *surface;
cairo_t *cr;
float r, g, b;
g_autofree char *text = NULL;
g_return_if_fail (SHUMATE_IS_TEST_TILE_SOURCE (map_source));
g_return_if_fail (SHUMATE_IS_TILE (tile));
g_return_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable));
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, tile_size, tile_size);
cr = cairo_create (surface);
gtk_hsv_to_rgb (zoom / (double) max_zoom, 1, ((x + y) % 2 == 0) ? 1 : 0.5, &r, &g, &b);
cairo_set_source_rgb (cr, r, g, b);
cairo_paint (cr);
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_move_to (cr, 8, tile_size - 8);
cairo_scale (cr, 2, 2);
text = g_strdup_printf ("%d, %d (z%d)", x, y, zoom);
cairo_show_text (cr, text);
texture = texture_new_for_surface (surface);
cairo_surface_destroy (surface);
cairo_destroy (cr);
shumate_tile_set_paintable (tile, GDK_PAINTABLE (texture));
shumate_tile_set_fade_in (tile, TRUE);
shumate_tile_set_state (tile, SHUMATE_STATE_DONE);
task = g_task_new (map_source, cancellable, callback, user_data);
g_task_set_source_tag (task, shumate_test_tile_source_fill_tile_async);
g_task_return_boolean (task, TRUE);
}
static gboolean
shumate_test_tile_source_fill_tile_finish (ShumateMapSource *map_source,
GAsyncResult *result,
GError **error)
{
ShumateTestTileSource *self = (ShumateTestTileSource *)map_source;
g_return_val_if_fail (SHUMATE_IS_TEST_TILE_SOURCE (self), FALSE);
g_return_val_if_fail (g_task_is_valid (result, self), FALSE);
return g_task_propagate_boolean (G_TASK (result), error);
}
static void
shumate_test_tile_source_class_init (ShumateTestTileSourceClass *klass)
{
ShumateMapSourceClass *map_source_class = SHUMATE_MAP_SOURCE_CLASS (klass);
map_source_class->fill_tile_async = shumate_test_tile_source_fill_tile_async;
map_source_class->fill_tile_finish = shumate_test_tile_source_fill_tile_finish;
}
static void
shumate_test_tile_source_init (ShumateTestTileSource *self)
{
}
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