-package net.mograsim.plugin.tables.mi;
-
-import org.eclipse.jface.resource.ColorRegistry;
-import org.eclipse.jface.resource.FontRegistry;
-import org.eclipse.jface.util.IPropertyChangeListener;
-import org.eclipse.jface.viewers.TableViewer;
-import org.eclipse.swt.SWT;
-import org.eclipse.swt.graphics.Color;
-import org.eclipse.swt.graphics.Font;
-import org.eclipse.swt.widgets.Display;
-import org.eclipse.ui.themes.ITheme;
-import org.eclipse.ui.themes.IThemeManager;
-
-import net.mograsim.machine.mi.MicroInstructionMemory;
-
-public class ColorProvider
-{
- private final TableViewer viewer;
- private final IThemeManager themeManager;
- private long highlightedAddress = -1;
- private ColorRegistry cRegistry;
- private FontRegistry fRegistry;
- private Font boldItalic;
-
- private final static String font = "net.mograsim.plugin.table_font",
- colorModifBackground = "net.mograsim.plugin.modified_cell_bg_color",
- colorModifForeground = "net.mograsim.plugin.modified_cell_fg_color",
- colorHighlightedForeground = "net.mograsim.plugin.highlighted_cell_fg_color",
- colorHighlightedBackground = "net.mograsim.plugin.highlighted_cell_bg_color";
- private final IPropertyChangeListener updateListener;
-
- public ColorProvider(TableViewer viewer, IThemeManager themeManager)
- {
- this.viewer = viewer;
- this.themeManager = themeManager;
- themeChanged(themeManager.getCurrentTheme());
- updateListener = e ->
- {
- switch (e.getProperty())
- {
- case IThemeManager.CHANGE_CURRENT_THEME:
- themeChanged(themeManager.getCurrentTheme());
- //$FALL-THROUGH$
- case font:
- case colorModifBackground:
- case colorModifForeground:
- viewer.refresh();
- break;
- default:
- break;
- }
- };
- themeManager.addPropertyChangeListener(updateListener);
- }
-
- private void themeChanged(ITheme theme)
- {
- cRegistry = theme.getColorRegistry();
- fRegistry = theme.getFontRegistry();
- boldItalic = fRegistry.getDescriptor(font).setStyle(SWT.BOLD | SWT.ITALIC).createFont(Display.getDefault());
- }
-
- public Color getBackground(Object element, int column)
- {
- InstructionTableRow row = (InstructionTableRow) element;
- if (isDefault(row, column))
- {
- if (isHighlighted(row))
- return cRegistry.get(colorHighlightedBackground);
- return viewer.getTable().getBackground();
- }
- return cRegistry.get(colorModifBackground);
- }
-
- public Color getForeground(Object element, int column)
- {
- InstructionTableRow row = (InstructionTableRow) element;
- if (isDefault(row, column))
- {
- if (isHighlighted(row))
- return cRegistry.get(colorHighlightedForeground);
- return viewer.getTable().getForeground();
- }
- return cRegistry.get(colorModifForeground);
- }
-
- public Font getFont(Object element, int column)
- {
- InstructionTableRow row = (InstructionTableRow) element;
- boolean modified = !isDefault(row, column), highlighted = isHighlighted(row);
- if (modified && highlighted)
- return boldItalic;
- if (modified)
- return fRegistry.getItalic(font);
- if (highlighted)
- return fRegistry.getBold(font);
- return fRegistry.get(font);
- }
-
- private static boolean isDefault(InstructionTableRow row, int column)
- {
- return column == -1 ? true : row.data.getCell(row.address).getParameter(column).isDefault();
- }
-
- private boolean isHighlighted(InstructionTableRow row)
- {
- return highlightedAddress == row.address;
- }
-
- /**
- * @param index Index of the row to highlight; An negative index means no row is highlighted
- */
- public void highlight(long row)
- {
- highlightedAddress = row + ((MicroInstructionMemory) viewer.getInput()).getDefinition().getMinimalAddress();
- }
-
- public void dispose()
- {
- themeManager.removePropertyChangeListener(updateListener);
- }
-}