2 * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
3 * Copyright (C) $$Year-Rel$$ The Jalview Authors
5 * This file is part of Jalview.
7 * Jalview is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation, either version 3
10 * of the License, or (at your option) any later version.
12 * Jalview is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty
14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
19 * The Jalview Authors are detailed in the 'AUTHORS' file.
21 package jalview.renderer;
23 import java.awt.FontMetrics;
24 import java.awt.Image;
25 import java.awt.image.ImageObserver;
28 * semi-insulated interface for rendering a faded image whilst a calculation is
29 * in progress on annotation panel. Will need to remove java.awt dependencies
35 public interface AwtRenderPanelI extends ImageObserver
38 * old image used when data is currently being calculated and cannot be
41 Image getFadedImage();
44 * FontMetrics to use for rendering into Panel
48 FontMetrics getFontMetrics();
51 * width of image to render in panel
53 int getFadedImageWidth();
56 * height of visible area on to the image - used to draw only what is visible.
58 * @return [start, end of visible region]
60 int[] getVisibleVRange();