synthtableui.java

Mobile 应用程序使用 Java Micro Edition (Java ME) 平台

        return rect;
    }

    private Rectangle getVDropLineRect(JTable.DropLocation loc) {
        if (!loc.isInsertColumn()) {
            return null;
        }

        boolean ltr = table.getComponentOrientation().isLeftToRight();
        int col = loc.getColumn();
        Rectangle rect = table.getCellRect(loc.getRow(), col, true);

        if (col >= table.getColumnCount()) {
            col--;
            rect = table.getCellRect(loc.getRow(), col, true);
            if (ltr) {
                rect.x = rect.x + rect.width;
            }
        } else if (!ltr) {
            rect.x = rect.x + rect.width;
        }

        if (rect.x == 0) {
            rect.x = -1;
        } else {
            rect.x -= 2;
        }
        
        rect.width = 3;

        return rect;
    }

    private Rectangle extendRect(Rectangle rect, boolean horizontal) {
        if (rect == null) {
            return rect;
        }

        if (horizontal) {
            rect.x = 0;
            rect.width = table.getWidth();
        } else {
            rect.y = 0;

            if (table.getRowCount() != 0) {
                Rectangle lastRect = table.getCellRect(table.getRowCount() - 1, 0, true);
                rect.height = lastRect.y + lastRect.height;
            } else {
                rect.height = table.getHeight();
            }
        }

        return rect;
    }

    /*
     * Paints the grid lines within <I>aRect</I>, using the grid
     * color set with <I>setGridColor</I>. Paints vertical lines
     * if <code>getShowVerticalLines()</code> returns true and paints
     * horizontal lines if <code>getShowHorizontalLines()</code>
     * returns true.
     */
    private void paintGrid(SynthContext context, Graphics g, int rMin,
                           int rMax, int cMin, int cMax) {
        g.setColor(table.getGridColor());

	Rectangle minCell = table.getCellRect(rMin, cMin, true);
	Rectangle maxCell = table.getCellRect(rMax, cMax, true);
        Rectangle damagedArea = minCell.union( maxCell );
        SynthGraphicsUtils synthG = context.getStyle().getGraphicsUtils(
                     context);

        if (table.getShowHorizontalLines()) {
	    int tableWidth = damagedArea.x + damagedArea.width;
	    int y = damagedArea.y;
	    for (int row = rMin; row <= rMax; row++) {
		y += table.getRowHeight(row);
                synthG.drawLine(context, "Table.grid",
                                g, damagedArea.x, y - 1, tableWidth - 1,y - 1);
	    }
	}
        if (table.getShowVerticalLines()) {
	    TableColumnModel cm = table.getColumnModel();
	    int tableHeight = damagedArea.y + damagedArea.height;
	    int x;
	    if (table.getComponentOrientation().isLeftToRight()) {
		x = damagedArea.x;
		for (int column = cMin; column <= cMax; column++) {
		    int w = cm.getColumn(column).getWidth();
		    x += w;
                    synthG.drawLine(context, "Table.grid", g, x - 1, 0,
                                    x - 1, tableHeight - 1);
		}
	    } else {
                x = damagedArea.x;
                for (int column = cMax; column >= cMin; column--) {
                    int w = cm.getColumn(column).getWidth();
                    x += w;
                    synthG.drawLine(context, "Table.grid", g, x - 1, 0, x - 1,
                                    tableHeight - 1);
                }
	    }
	}
    }

    private int viewIndexForColumn(TableColumn aColumn) {
        TableColumnModel cm = table.getColumnModel();
        for (int column = 0; column < cm.getColumnCount(); column++) {
            if (cm.getColumn(column) == aColumn) {
                return column;
            }
        }
        return -1;
    }

    private void paintCells(SynthContext context, Graphics g, int rMin,
                            int rMax, int cMin, int cMax) {
	JTableHeader header = table.getTableHeader();
	TableColumn draggedColumn = (header == null) ? null : header.getDraggedColumn();

	TableColumnModel cm = table.getColumnModel();
	int columnMargin = cm.getColumnMargin();

        Rectangle cellRect;
	TableColumn aColumn;
	int columnWidth;
	if (table.getComponentOrientation().isLeftToRight()) {
	    for(int row = rMin; row <= rMax; row++) {
		cellRect = table.getCellRect(row, cMin, false);
                for(int column = cMin; column <= cMax; column++) {
                    aColumn = cm.getColumn(column);
                    columnWidth = aColumn.getWidth();
                    cellRect.width = columnWidth - columnMargin;
                    if (aColumn != draggedColumn) {
                        paintCell(context, g, cellRect, row, column);
                    }
                    cellRect.x += columnWidth;
        	}
	    }
	} else {
	    for(int row = rMin; row <= rMax; row++) {
                cellRect = table.getCellRect(row, cMin, false);
                aColumn = cm.getColumn(cMin);
                if (aColumn != draggedColumn) {
                    columnWidth = aColumn.getWidth();
                    cellRect.width = columnWidth - columnMargin;
                    paintCell(context, g, cellRect, row, cMin);
                }
                for(int column = cMin+1; column <= cMax; column++) {
                    aColumn = cm.getColumn(column);
                    columnWidth = aColumn.getWidth();
                    cellRect.width = columnWidth - columnMargin;
                    cellRect.x -= columnWidth;
                    if (aColumn != draggedColumn) {
                        paintCell(context, g, cellRect, row, column);
                    }
        	}
	    }
	}

        // Paint the dragged column if we are dragging.
        if (draggedColumn != null) {
	    paintDraggedArea(context, g, rMin, rMax, draggedColumn, header.getDraggedDistance());
	}

	// Remove any renderers that may be left in the rendererPane.
	rendererPane.removeAll();
    }

    private void paintDraggedArea(SynthContext context, Graphics g, int rMin, int rMax, TableColumn draggedColumn, int distance) {
        int draggedColumnIndex = viewIndexForColumn(draggedColumn);

        Rectangle minCell = table.getCellRect(rMin, draggedColumnIndex, true);
	Rectangle maxCell = table.getCellRect(rMax, draggedColumnIndex, true);

	Rectangle vacatedColumnRect = minCell.union(maxCell);

	// Paint a gray well in place of the moving column.
	g.setColor(table.getParent().getBackground());
	g.fillRect(vacatedColumnRect.x, vacatedColumnRect.y,
		   vacatedColumnRect.width, vacatedColumnRect.height);

	// Move to the where the cell has been dragged.
	vacatedColumnRect.x += distance;

	// Fill the background.
	g.setColor(context.getStyle().getColor(context, ColorType.BACKGROUND));
	g.fillRect(vacatedColumnRect.x, vacatedColumnRect.y,
		   vacatedColumnRect.width, vacatedColumnRect.height);

        SynthGraphicsUtils synthG = context.getStyle().getGraphicsUtils(
                                            context);
        

	// Paint the vertical grid lines if necessary.
	if (table.getShowVerticalLines()) {
	    g.setColor(table.getGridColor());
	    int x1 = vacatedColumnRect.x;
	    int y1 = vacatedColumnRect.y;
	    int x2 = x1 + vacatedColumnRect.width - 1;
	    int y2 = y1 + vacatedColumnRect.height - 1;
	    // Left
            synthG.drawLine(context, "Table.grid", g, x1-1, y1, x1-1, y2);
	    // Right
	    synthG.drawLine(context, "Table.grid", g, x2, y1, x2, y2);
	}

	for(int row = rMin; row <= rMax; row++) {
	    // Render the cell value
	    Rectangle r = table.getCellRect(row, draggedColumnIndex, false);
	    r.x += distance;
	    paintCell(context, g, r, row, draggedColumnIndex);

	    // Paint the (lower) horizontal grid line if necessary.
	    if (table.getShowHorizontalLines()) {
		g.setColor(table.getGridColor());
		Rectangle rcr = table.getCellRect(row, draggedColumnIndex, true);
		rcr.x += distance;
		int x1 = rcr.x;
		int y1 = rcr.y;
		int x2 = x1 + rcr.width - 1;
		int y2 = y1 + rcr.height - 1;
		synthG.drawLine(context, "Table.grid", g, x1, y2, x2, y2);
	    }
	}
    }

    private void paintCell(SynthContext context, Graphics g,
            Rectangle cellRect, int row, int column) {
        if (table.isEditing() && table.getEditingRow()==row &&
                                 table.getEditingColumn()==column) {
            Component component = table.getEditorComponent();
            component.setBounds(cellRect);
            component.validate();
        }
        else {
            TableCellRenderer renderer = table.getCellRenderer(row, column);
            Component component = table.prepareRenderer(renderer, row, column);
            Color b = component.getBackground();
            if ((b == null || b instanceof UIResource
                    || component instanceof SynthBooleanTableCellRenderer)
                    && !table.isCellSelected(row, column)) {
                if (alternateColor != null && row % 2 == 0) {
                    component.setBackground(alternateColor);
                }
            }
            rendererPane.paintComponent(g, component, table, cellRect.x,
                    cellRect.y, cellRect.width, cellRect.height, true);
        }
    }

    public void propertyChange(PropertyChangeEvent event) {
        if (SynthLookAndFeel.shouldUpdateStyle(event)) {
            updateStyle((JTable)event.getSource());
        }
    }


    private class SynthBooleanTableCellRenderer extends JCheckBox implements
                      TableCellRenderer {
        private boolean isRowSelected;              
        
        public SynthBooleanTableCellRenderer() {
            setHorizontalAlignment(JLabel.CENTER);
            setName("Table.cellRenderer");
        }

        public Component getTableCellRendererComponent(
                            JTable table, Object value, boolean isSelected,
                            boolean hasFocus, int row, int column) {
            isRowSelected = isSelected;
            
            if (isSelected) {
                setForeground(unwrap(table.getSelectionForeground()));
                setBackground(unwrap(table.getSelectionBackground()));
            } else {
                setForeground(unwrap(table.getForeground()));
                setBackground(unwrap(table.getBackground()));
            }
            
            setSelected((value != null && ((Boolean)value).booleanValue()));
            return this;
        }
        
        private Color unwrap(Color c) {
            if (c instanceof UIResource) {
                return new Color(c.getRGB());
            }
            return c;
        }
        
        public boolean isOpaque() {
            return isRowSelected ? true : super.isOpaque();
        }
    }

    private class SynthTableCellRenderer extends DefaultTableCellRenderer {
        private Object numberFormat;
        private Object dateFormat;
        private boolean opaque;

        public void setOpaque(boolean isOpaque) {
            opaque = isOpaque;
        }

        public boolean isOpaque() {
            return opaque;
        }

        public String getName() {
            String name = super.getName();
            if (name == null) {
                return "Table.cellRenderer";
            }
            return name;
        }

        public void setBorder(Border b) {
            if (useUIBorder || b instanceof SynthBorder) {
                super.setBorder(b);
            }
        }

        public Component getTableCellRendererComponent(
                  JTable table, Object value, boolean isSelected,
                  boolean hasFocus, int row, int column) {
            if (!useTableColors && (isSelected || hasFocus)) {
                SynthLookAndFeel.setSelectedUI((SynthLabelUI)SynthLookAndFeel.
                             getUIOfType(getUI(), SynthLabelUI.class),
                                   isSelected, hasFocus, table.isEnabled(), false);
            }
            else {
                SynthLookAndFeel.resetSelectedUI();
            }
            super.getTableCellRendererComponent(table, value, isSelected,
                                                hasFocus, row, column);

            setIcon(null);
            Class columnClass = table.getColumnClass(column);
            configureValue(value, columnClass);

            return this;
        }

        private void configureValue(Object value, Class columnClass) {
            if (columnClass == Object.class || columnClass == null) {
                setHorizontalAlignment(JLabel.LEADING);
            } else if (columnClass == Float.class || columnClass == Double.class) {
                if (numberFormat == null) {
                    numberFormat = NumberFormat.getInstance();
                }
                setHorizontalAlignment(JLabel.TRAILING);
                setText((value == null) ? "" : ((NumberFormat)numberFormat).format(value));
            }
            else if (columnClass == Number.class) {
                setHorizontalAlignment(JLabel.TRAILING);
                // Super will have set value.
            }
            else if (columnClass == Icon.class || columnClass == ImageIcon.class) {
                setHorizontalAlignment(JLabel.CENTER);
                setIcon((value instanceof Icon) ? (Icon)value : null);
                setText("");
            }
            else if (columnClass == Date.class) {
                if (dateFormat == null) {
                    dateFormat = DateFormat.getDateInstance();
                }
                setHorizontalAlignment(JLabel.LEADING);
                setText((value == null) ? "" : ((Format)dateFormat).format(value));
            }
            else {
                configureValue(value, columnClass.getSuperclass());
            }
        }

        public void paint(Graphics g) {
            super.paint(g);
            SynthLookAndFeel.resetSelectedUI();
        }
    }
}