/*
* Copyright 2000-2012 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.uiDesigner.designSurface;
import com.intellij.ide.ui.UISettings;
import com.intellij.ui.JBColor;
import com.intellij.ui.LightColors;
import com.intellij.uiDesigner.FormEditingUtil;
import com.intellij.uiDesigner.SwingProperties;
import com.intellij.uiDesigner.core.GridLayoutManager;
import com.intellij.uiDesigner.lw.IProperty;
import com.intellij.uiDesigner.lw.StringDescriptor;
import com.intellij.uiDesigner.radComponents.*;
import com.intellij.uiDesigner.shared.BorderType;
import com.intellij.util.ui.PlatformColors;
import org.intellij.lang.annotations.JdkConstants;
import org.jetbrains.annotations.NotNull;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.Rectangle2D;
import java.util.ArrayList;
import java.util.List;
/**
* @author Anton Katilin
* @author Vladimir Kondratyev
*/
public final class Painter {
/**
* This color is used to paint decoration of non selected components
*/
private static final Color NON_SELECTED_BOUNDARY_COLOR = new Color(114, 126, 143);
/**
* This color is used to paint decoration of selected components
*/
private static final Color SELECTED_BOUNDARY_COLOR = new Color(8, 8, 108);
private static final Color HIGHLIGHTED_BOUNDARY_COLOR = Color.RED;
/**
* This color is used to paint grid cell for selected container
*/
static final Color SELECTED_GRID_COLOR = new Color(47, 67, 96);
/**
* This color is used to paint grid cell for non selected container
*/
static final Color NON_SELECTED_GRID_COLOR = new Color(130, 140, 155);
public final static int WEST_MASK = 1;
public final static int EAST_MASK = 2;
public final static int NORTH_MASK = 4;
public final static int SOUTH_MASK = 8;
private final static int R = 2;
private final static int GAP = R;
private static final int NW = 0;
private static final int N = 1;
private static final int NE = 2;
private static final int E = 3;
private static final int SE = 4;
private static final int S = 5;
private static final int SW = 6;
private static final int W = 7;
private Painter() {
}
public static void paintComponentDecoration(final GuiEditor editor, final RadComponent component, final Graphics g) {
// Collect selected components and paint decoration for non selected components
final ArrayList<RadComponent> selection = new ArrayList<>();
final Rectangle layeredPaneRect = editor.getLayeredPane().getVisibleRect();
FormEditingUtil.iterate(
component,
new FormEditingUtil.ComponentVisitor<RadComponent>() {
public boolean visit(final RadComponent component) {
if (!component.getDelegee().isShowing()) { // Skip invisible components
return true;
}
final Shape oldClip = g.getClip();
final RadContainer parent = component.getParent();
if (parent != null) {
final Point p = SwingUtilities.convertPoint(component.getDelegee(), 0, 0, editor.getLayeredPane());
final Rectangle visibleRect = layeredPaneRect.intersection(new Rectangle(p.x, p.y, parent.getWidth(), parent.getHeight()));
g.setClip(visibleRect);
}
if (component.isSelected()) { // we will paint selection later
selection.add(component);
}
else {
paintComponentBoundsImpl(editor, component, g);
}
paintGridOutline(editor, component, g);
if (parent != null) {
g.setClip(oldClip);
}
return true;
}
}
);
// Let's paint decoration for selected components
for (int i = selection.size() - 1; i >= 0; i--) {
final Shape oldClip = g.getClip();
final RadComponent c = selection.get(i);
final RadContainer parent = c.getParent();
if (parent != null) {
final Point p = SwingUtilities.convertPoint(c.getDelegee(), 0, 0, editor.getLayeredPane());
final Rectangle visibleRect = layeredPaneRect.intersection(new Rectangle(p.x, p.y, parent.getWidth(), parent.getHeight()));
g.setClip(visibleRect);
}
paintComponentBoundsImpl(editor, c, g);
if (parent != null) {
g.setClip(oldClip);
}
}
}
/**
* Paints container border. For grids the method also paints vertical and
* horizontal lines that indicate bounds of the rows and columns.
* Method does nothing if the <code>component</code> is not an instance
* of <code>RadContainer</code>.
*/
private static void paintComponentBoundsImpl(final GuiEditor editor, @NotNull final RadComponent component, final Graphics g) {
if (!(component instanceof RadContainer) && !(component instanceof RadNestedForm) && !component.isDragBorder()) {
return;
}
boolean highlightBoundaries = (getDesignTimeInsets(component) > 2);
if (component instanceof RadContainer && !component.isDragBorder()) {
RadContainer container = (RadContainer)component;
if (!highlightBoundaries && (container.getBorderTitle() != null || container.getBorderType() != BorderType.NONE)) {
return;
}
}
final Point point = SwingUtilities.convertPoint(
component.getDelegee(),
0,
0,
editor.getRootContainer().getDelegee()
);
g.translate(point.x, point.y);
try {
if (component.isDragBorder()) {
Graphics2D g2d = (Graphics2D)g;
g2d.setColor(LightColors.YELLOW);
g2d.setStroke(new BasicStroke(2.0f));
g2d.translate(1, 1);
}
else if (highlightBoundaries) {
g.setColor(HIGHLIGHTED_BOUNDARY_COLOR);
}
else if (component.isSelected()) {
g.setColor(SELECTED_BOUNDARY_COLOR);
}
else {
g.setColor(NON_SELECTED_BOUNDARY_COLOR);
}
g.drawRect(0, 0, component.getWidth() - 1, component.getHeight() - 1);
if (component.isDragBorder()) {
g.translate(-1, -1);
}
}
finally {
g.translate(-point.x, -point.y);
}
}
private static int getDesignTimeInsets(RadComponent component) {
while (component != null) {
Integer designTimeInsets = (Integer)component.getDelegee().getClientProperty(GridLayoutManager.DESIGN_TIME_INSETS);
if (designTimeInsets != null) {
return designTimeInsets.intValue();
}
component = component.getParent();
}
return 0;
}
/**
* This method paints grid bounds for "grid" containers
*/
public static void paintGridOutline(final GuiEditor editor, @NotNull final RadComponent component, final Graphics g) {
if (!editor.isShowGrid()) {
return;
}
if (!(component instanceof RadContainer)) {
return;
}
final RadContainer container = (RadContainer)component;
if (!container.getLayoutManager().isGrid()) {
return;
}
// performance: don't paint grid outline in drag layer
Container parent = component.getDelegee().getParent();
while (parent != null) {
if (parent == editor.getDragLayer()) {
return;
}
parent = parent.getParent();
}
final Point point = SwingUtilities.convertPoint(
component.getDelegee(),
0,
0,
editor.getRootContainer().getDelegee()
);
g.translate(point.x, point.y);
try {
// Paint grid
if (container.getWidth() > 0 && container.getHeight() > 0) {
Image gridImage = CachedGridImage.getGridImage(container);
g.drawImage(gridImage, 0, 0, null);
}
}
finally {
g.translate(-point.x, -point.y);
}
}
/**
* Paints selection for the specified <code>component</code>.
*/
public static void paintSelectionDecoration(@NotNull RadComponent component, Graphics g,
boolean focused) {
if (component.isSelected()) {
if (focused) {
g.setColor(PlatformColors.BLUE);
}
else {
g.setColor(Color.GRAY);
}
final Point[] points = getPoints(component.getWidth(), component.getHeight());
for (final Point point : points) {
g.fillRect(point.x - R, point.y - R, 2 * R + 1, 2 * R + 1);
}
}
else if (component.getWidth() < FormEditingUtil.EMPTY_COMPONENT_SIZE || component.getHeight() < FormEditingUtil.EMPTY_COMPONENT_SIZE) {
Graphics2D g2d = (Graphics2D)g;
Composite oldComposite = g2d.getComposite();
Stroke oldStroke = g2d.getStroke();
Color oldColor = g2d.getColor();
g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, 0.5f));
g2d.setStroke(new BasicStroke(0.7f));
g2d.setColor(Color.black);
g2d.drawRect(0, 0, Math.max(component.getWidth(), FormEditingUtil.EMPTY_COMPONENT_SIZE),
Math.max(component.getHeight(), FormEditingUtil.EMPTY_COMPONENT_SIZE));
g2d.setComposite(oldComposite);
g2d.setStroke(oldStroke);
g2d.setColor(oldColor);
}
}
/**
* @param x in component's coord system
* @param y in component's coord system
*/
public static int getResizeMask(@NotNull final RadComponent component, final int x, final int y) {
if (component.getParent() == null || !component.isSelected()) {
return 0;
}
// only components in XY can be resized...
/*
if (!component.getParent().isXY()) {
return 0;
}
*/
final int width = component.getWidth();
final int height = component.getHeight();
final Point[] points = getPoints(width, height);
if (isInside(x, y, points[SE])) {
return EAST_MASK | SOUTH_MASK;
}
else if (isInside(x, y, points[NW])) {
return WEST_MASK | NORTH_MASK;
}
else if (isInside(x, y, points[N])) {
return NORTH_MASK;
}
else if (isInside(x, y, points[NE])) {
return EAST_MASK | NORTH_MASK;
}
else if (isInside(x, y, points[W])) {
return WEST_MASK;
}
else if (isInside(x, y, points[E])) {
return EAST_MASK;
}
else if (isInside(x, y, points[SW])) {
return WEST_MASK | SOUTH_MASK;
}
else if (isInside(x, y, points[S])) {
return SOUTH_MASK;
}
else {
return 0;
}
}
private static boolean isInside(final int x, final int y, final Point r) {
return x >= r.x - R && x <= r.x + R && y >= r.y - R && y <= r.y + R;
}
@JdkConstants.CursorType
public static int getResizeCursor(final int resizeMask) {
if (resizeMask == (WEST_MASK | NORTH_MASK)) {
return Cursor.NW_RESIZE_CURSOR;
}
else if (resizeMask == NORTH_MASK) {
return Cursor.N_RESIZE_CURSOR;
}
else if (resizeMask == (EAST_MASK | NORTH_MASK)) {
return Cursor.NE_RESIZE_CURSOR;
}
else if (resizeMask == WEST_MASK) {
return Cursor.W_RESIZE_CURSOR;
}
else if (resizeMask == EAST_MASK) {
return Cursor.E_RESIZE_CURSOR;
}
else if (resizeMask == (WEST_MASK | SOUTH_MASK)) {
return Cursor.SW_RESIZE_CURSOR;
}
else if (resizeMask == SOUTH_MASK) {
return Cursor.S_RESIZE_CURSOR;
}
else if (resizeMask == (EAST_MASK | SOUTH_MASK)) {
return Cursor.SE_RESIZE_CURSOR;
}
else {
throw new IllegalArgumentException("unknown resizeMask: " + resizeMask);
}
}
public static Point[] getPoints(final int width, final int height) {
final Point[] points = new Point[8];
points[NW] = new Point(GAP, GAP); // NW
points[N] = new Point(width / 2, GAP); // N
points[NE] = new Point(width - GAP - 1, GAP); // NE
points[E] = new Point(width - GAP - 1, height / 2); // E
points[SE] = new Point(width - GAP - 1, height - GAP - 1); // SE
points[S] = new Point(width / 2, height - GAP - 1); // S
points[SW] = new Point(GAP, height - GAP - 1); // SW
points[W] = new Point(GAP, height / 2); // W
return points;
}
public static void paintButtonGroupLines(RadRootContainer rootContainer, RadButtonGroup group, Graphics g) {
List<RadComponent> components = rootContainer.getGroupContents(group);
if (components.size() < 2) return;
Rectangle[] allBounds = new Rectangle[components.size()];
int lastTop = -1;
int minLeft = Integer.MAX_VALUE;
for (int i = 0; i < components.size(); i++) {
final Rectangle rc = SwingUtilities.convertRectangle(
components.get(i).getParent().getDelegee(),
components.get(i).getBounds(),
rootContainer.getDelegee()
);
allBounds[i] = rc;
minLeft = Math.min(minLeft, rc.x);
if (i == 0) {
lastTop = rc.y;
}
else if (lastTop != rc.y) {
lastTop = Integer.MIN_VALUE;
}
}
Graphics2D g2d = (Graphics2D)g;
Stroke oldStroke = g2d.getStroke();
g2d.setStroke(new BasicStroke(2.0f));
g2d.setColor(new Color(104, 107, 130));
if (lastTop != Integer.MIN_VALUE) {
// all items in group have same Y
int left = Integer.MAX_VALUE;
int right = Integer.MIN_VALUE;
for (Rectangle rc : allBounds) {
final int midX = (int)rc.getCenterX();
left = Math.min(left, midX);
right = Math.max(right, midX);
g2d.drawLine(midX, lastTop - 8, midX, lastTop);
}
g2d.drawLine(left, lastTop - 8, right, lastTop - 8);
}
else {
int top = Integer.MAX_VALUE;
int bottom = Integer.MIN_VALUE;
for (Rectangle rc : allBounds) {
final int midY = (int)rc.getCenterY();
top = Math.min(top, midY);
bottom = Math.max(bottom, midY);
g2d.drawLine(minLeft - 8, midY, rc.x, midY);
}
g2d.drawLine(minLeft - 8, top, minLeft - 8, bottom);
}
g2d.setStroke(oldStroke);
}
public static void paintComponentTag(final RadComponent component, final Graphics g) {
if (component instanceof RadContainer) return;
for (IProperty prop : component.getModifiedProperties()) {
if (prop.getName().equals(SwingProperties.TEXT)) {
final Object desc = prop.getPropertyValue(component);
if (!(desc instanceof StringDescriptor) || ((StringDescriptor)desc).getValue() == null ||
((StringDescriptor)desc).getValue().length() > 0) {
return;
}
}
else if (prop.getName().equals(SwingProperties.MODEL)) {
// don't paint tags on non-empty lists
final Object value = prop.getPropertyValue(component);
if (value instanceof String[] && ((String[])value).length > 0) {
return;
}
}
}
Rectangle bounds = component.getDelegee().getBounds();
if (bounds.width > 100 && bounds.height > 40) {
StringBuilder tagBuilder = new StringBuilder();
if (component.getBinding() != null) {
tagBuilder.append(component.getBinding()).append(':');
}
String className = component.getComponentClassName();
int pos = className.lastIndexOf('.');
if (pos >= 0) {
tagBuilder.append(className.substring(pos + 1));
}
else {
tagBuilder.append(className);
}
final Rectangle2D stringBounds = g.getFontMetrics().getStringBounds(tagBuilder.toString(), g);
Graphics2D g2d = (Graphics2D)g;
g2d.setColor(PlatformColors.BLUE);
g2d.fillRect(0, 0, (int)stringBounds.getWidth(), (int)stringBounds.getHeight());
g2d.setColor(JBColor.WHITE);
UISettings.setupAntialiasing(g);
g.drawString(tagBuilder.toString(), 0, g.getFontMetrics().getAscent());
}
}
}