1 | package org.expeditee.items.widgets;
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2 |
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3 | import java.awt.Component;
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4 | import java.awt.Container;
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5 | import java.awt.Graphics2D;
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6 | import java.awt.Point;
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7 | import java.awt.Rectangle;
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8 | import java.awt.event.ContainerEvent;
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9 | import java.awt.event.ContainerListener;
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10 | import java.awt.event.KeyEvent;
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11 | import java.awt.event.KeyListener;
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12 | import java.util.Arrays;
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13 | import java.util.LinkedList;
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14 | import java.util.List;
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15 |
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16 | import javax.swing.JComponent;
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17 | import javax.swing.JPopupMenu;
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18 |
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19 | import org.expeditee.core.bounds.AxisAlignedBoxBounds;
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20 | import org.expeditee.gio.EcosystemManager;
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21 | import org.expeditee.gio.EcosystemManager.Ecosystem;
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22 | import org.expeditee.gio.swing.SwingGraphicsManager;
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23 | import org.expeditee.gio.swing.SwingMiscManager;
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24 | import org.expeditee.gui.DisplayController;
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25 | import org.expeditee.items.ItemParentStateChangedEvent;
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26 | import org.expeditee.items.Text;
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27 | import org.expeditee.items.UserAppliedPermission;
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28 |
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29 | public abstract class SwingWidget extends Widget implements ContainerListener, KeyListener
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30 | {
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31 | // A flag for signifying whether the swing components are ready to paint.
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32 | // If the swing components has not been layed out, if they are painted they
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33 | // will not draw in the correct positions.
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34 | // Also for setting AWT and Swing -Related drawing options after
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35 | // construction
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36 | private boolean _isReadyToPaint = false;
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37 |
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38 | protected JComponent _swingComponent;
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39 |
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40 | protected SwingWidget(Text source, JComponent component, int minWidth, int maxWidth, int minHeight, int maxHeight)
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41 | {
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42 | super(source, minWidth, maxWidth, minHeight, maxHeight);
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43 |
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44 | if (component == null) {
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45 | throw new NullPointerException("component");
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46 | }
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47 |
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48 | _swingComponent = component;
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49 | _swingComponent.setFocusable(true);
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50 | addKeyListenerToWidget();
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51 | addThisAsContainerListenerToContent();
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52 | onBoundsChanged();
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53 |
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54 | JPopupMenu.setDefaultLightWeightPopupEnabled(false);
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55 | }
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56 |
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57 | public JComponent getComponent()
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58 | {
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59 | return _swingComponent;
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60 | }
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61 |
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62 | @Override
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63 | public void keyTyped(KeyEvent e) {
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64 |
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65 | int keyCode = e.getKeyCode();
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66 |
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67 | if (keyCode >= KeyEvent.VK_F1 && keyCode <= KeyEvent.VK_F12) {
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68 | //((SwingInputManager) EcosystemManager.getInputManager()).keyTyped(e);
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69 | }
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70 | }
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71 |
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72 | @Override
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73 | public void keyPressed(KeyEvent e) {
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74 | int keyCode = e.getKeyCode();
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75 |
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76 | if (keyCode >= KeyEvent.VK_F1 && keyCode <= KeyEvent.VK_F12) {
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77 | //((SwingInputManager) EcosystemManager.getInputManager()).keyTyped(e);
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78 | }
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79 | }
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80 |
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81 | @Override
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82 | public void keyReleased(KeyEvent e) {
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83 | int keyCode = e.getKeyCode();
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84 |
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85 | if (keyCode >= KeyEvent.VK_F1 && keyCode <= KeyEvent.VK_F12) {
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86 | //((SwingInputManager) EcosystemManager.getInputManager()).keyTyped(e);
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87 | }
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88 | }
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89 |
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90 | /**
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91 | * Makes sure we add our KeyListener to every child component,
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92 | * since it seems that's the only way to make sure we capture key events in Java
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93 | * (without using KeyBindings which seem to only support the keyTyped event)
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94 | */
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95 | @Override
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96 | public void componentAdded(ContainerEvent e) {
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97 | if(e == null || e.getChild() == null) {
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98 | return;
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99 | }
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100 | keyListenerToChildren(e.getChild(), true);
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101 | }
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102 |
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103 | @Override
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104 | public void componentRemoved(ContainerEvent e) {
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105 | if(e == null || e.getChild() == null) {
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106 | return;
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107 | }
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108 | keyListenerToChildren(e.getChild(), false);
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109 | }
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110 |
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111 | @Override
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112 | protected void addWidgetContent(final ItemParentStateChangedEvent e) {
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113 | if ((e.getEventType() == ItemParentStateChangedEvent.EVENT_TYPE_ADDED_VIA_OVERLAY || e
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114 | .getEventType() == ItemParentStateChangedEvent.EVENT_TYPE_SHOWN_VIA_OVERLAY)
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115 | && e.getOverlayLevel().equals(UserAppliedPermission.none)) {
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116 | return; // item belongs to a non-active overlay
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117 | }
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118 |
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119 | if(_swingComponent.getParent() == null) {
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120 | if (e.getEventType() == ItemParentStateChangedEvent.EVENT_TYPE_SHOWN
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121 | || e.getEventType() == ItemParentStateChangedEvent.EVENT_TYPE_SHOWN_VIA_OVERLAY
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122 | || e.getSource() == DisplayController.getCurrentFrame()) {
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123 | onBoundsChanged();
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124 | ((SwingGraphicsManager) EcosystemManager.getGraphicsManager()).getContentPane().add(_swingComponent);
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125 | layout(_swingComponent);
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126 | }
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127 | }
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128 | }
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129 |
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130 | @Override
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131 | protected void addKeyListenerToWidget() {
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132 | keyListenerToChildren(_swingComponent, true);
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133 | }
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134 |
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135 | @Override
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136 | protected void addThisAsContainerListenerToContent() {
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137 | _swingComponent.addContainerListener(this);
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138 | }
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139 |
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140 | @Override
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141 | public AxisAlignedBoxBounds getContentBounds() {
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142 | //final Rectangle bounds = _swingComponent.getBounds();
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143 | //final AccessibleContext accessibleContext = _swingComponent.getAccessibleContext();
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144 | //if (accessibleContext != null) {
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145 | // final Rectangle accessibleBounds = _swingComponent.getAccessibleContext().getAccessibleComponent().getBounds();
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146 | // return new AxisAlignedBoxBounds(bounds.x, bounds.y, bounds.width, bounds.height + accessibleBounds.height);
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147 | //} else {
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148 | // return new AxisAlignedBoxBounds(bounds.x, bounds.y, bounds.width, bounds.height);
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149 | //}
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150 | final Rectangle bounds = _swingComponent.getBounds();
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151 | return new AxisAlignedBoxBounds(bounds.x, bounds.y, bounds.width, bounds.height);
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152 | }
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153 |
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154 | @Override
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155 | protected void layout() {
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156 | layout(_swingComponent);
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157 | }
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158 |
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159 | private void keyListenerToChildren(Component parent, boolean add) {
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160 | List<Component> components = new LinkedList<Component>();
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161 | components.add(parent);
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162 | while(!components.isEmpty()) {
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163 | Component c = components.remove(0);
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164 | if(c instanceof Container) {
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165 | components.addAll(Arrays.asList(((Container)c).getComponents()));
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166 | }
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167 | if(add && !Arrays.asList(c.getKeyListeners()).contains(this)) {
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168 | c.addKeyListener(this);
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169 | } else if (!add && Arrays.asList(c.getKeyListeners()).contains(this)) {
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170 | c.removeKeyListener(this);
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171 | }
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172 | }
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173 | }
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174 |
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175 | @Override
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176 | protected void onMoved()
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177 | {
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178 | // Do nothing
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179 | }
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180 |
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181 | @Override
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182 | protected void onSizeChanged()
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183 | {
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184 | onBoundsChanged();
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185 | layout(_swingComponent);
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186 | }
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187 |
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188 | @Override
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189 | public final void onBoundsChanged()
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190 | {
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191 | if (_swingComponent == null) {
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192 | return;
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193 | }
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194 |
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195 | if (isFixedSize()) {
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196 | _swingComponent.setBounds(getX(), getY(), getMaxWidth(), getMaxHeight());
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197 | } else {
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198 | _swingComponent.setBounds(getX(), getY(), getWidth(), getHeight());
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199 | }
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200 | }
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201 |
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202 | private void prepareToPaint()
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203 | {
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204 | _isReadyToPaint = true;
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205 | layout(_swingComponent);
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206 | ignoreAWTPainting(_swingComponent);
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207 | }
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208 |
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209 | private void ignoreAWTPainting(Component c)
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210 | {
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211 | if (c == null) {
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212 | return;
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213 | }
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214 |
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215 | if (c instanceof JComponent) {
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216 | ((JComponent) c).setDoubleBuffered(false);
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217 | }
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218 | c.setIgnoreRepaint(true);
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219 |
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220 | if (c instanceof Container) {
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221 | for (Component child : ((Container) c).getComponents()) {
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222 | if(child instanceof Container) {
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223 | ignoreAWTPainting(child);
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224 | } else {
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225 | if(child instanceof JComponent) {
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226 | ((JComponent) child).setDoubleBuffered(false);
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227 | }
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228 | child.setIgnoreRepaint(true);
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229 | }
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230 | }
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231 | }
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232 | }
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233 |
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234 | /**
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235 | * Due to absolute positioning...
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236 | *
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237 | * @param parent
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238 | */
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239 | private void layout(Component parent)
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240 | {
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241 | if (parent == null) {
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242 | return;
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243 | }
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244 |
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245 | parent.validate();
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246 |
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247 | if (parent instanceof Container) {
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248 | for (Component child : ((Container) parent).getComponents()) {
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249 | layout(child);
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250 | }
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251 | }
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252 | }
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253 |
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254 | @Override
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255 | protected final void paintWidget()
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256 | {
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257 | if (!_isReadyToPaint) {
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258 | prepareToPaint();
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259 | }
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260 |
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261 | Graphics2D g = SwingMiscManager.getIfUsingSwingGraphicsManager().getCurrentSurface();
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262 |
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263 | paintSwingWidget(g);
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264 | }
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265 |
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266 | /** Can be overridden to enable custom painting of widgets. */
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267 | protected void paintSwingWidget(Graphics2D g)
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268 | {
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269 | final Point location = _swingComponent.getLocation();
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270 | int x = location.x;
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271 | int y = location.y;
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272 | g.translate(x, y);
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273 | _swingComponent.paint(g);
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274 | g.translate(-x, -y);
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275 | }
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276 |
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277 | @Override
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278 | public boolean isSupportedOnEcosystem(Ecosystem type)
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279 | {
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280 | return type == Ecosystem.Swing;
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281 | }
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282 | }
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