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21 package org.lobobrowser.html.renderer;
22
23 import java.awt.Color  ;
24 import java.awt.Dimension ;
25 import java.awt.EventQueue ;
26 import java.awt.Graphics ;
27 import java.awt.Image ;
28 import java.awt.Insets ;
29 import java.awt.image.ImageObserver ;
30 import java.awt.event.*;
31
32 import org.lobobrowser.html.domimpl.*;
33 import org.lobobrowser.html.style.HtmlValues;
34 import org.lobobrowser.util.gui.*;
35
36 class InputImageControl extends BaseInputControl implements ImageListener {
37 private boolean mouseBeingPressed;
39
40 public InputImageControl(final HTMLBaseInputElement modelNode) {
41 super(modelNode);
42 this.setLayout(WrapperLayout.getInstance());
43 modelNode.addImageListener(this);
49 this.addMouseListener(new MouseAdapter() {
50 public void mousePressed(MouseEvent e) {
51 mouseBeingPressed = true;
52 repaint();
53 }
54
55
60 public void mouseReleased(MouseEvent e) {
61 mouseBeingPressed = false;
62 repaint();
63 HtmlController.getInstance().onPressed(modelNode, e, e.getX(), e.getY());
64 }
65 });
66 }
67
68 private int valign = RElement.VALIGN_BASELINE;
69 private Dimension preferredSize;
70 private int declaredWidth;
71 private int declaredHeight;
72 private Image image;
73
74 public void reset(int availWidth, int availHeight) {
75 super.reset(availWidth, availHeight);
76 HTMLElementImpl element = this.controlElement;
77 int dw = HtmlValues.getOldSyntaxPixelSize(element.getAttribute("width"), availWidth, -1);
78 int dh = HtmlValues.getOldSyntaxPixelSize(element.getAttribute("height"), availHeight, -1);
79 this.declaredWidth = dw;
80 this.declaredHeight = dh;
81 this.preferredSize = this.createPreferredSize(dw, dh);
82 int valign;
83 String alignText = element.getAttribute("align");
84 if(alignText == null) {
85 valign = RElement.VALIGN_BASELINE;
86 }
87 else {
88 alignText = alignText.toLowerCase().trim();
89 if("middle".equals(alignText)) {
90 valign = RElement.VALIGN_MIDDLE;
91 }
92 else if("absmiddle".equals(alignText)) {
93 valign = RElement.VALIGN_ABSMIDDLE;
94 }
95 else if("top".equals(alignText)) {
96 valign = RElement.VALIGN_TOP;
97 }
98 else if("bottom".equals(alignText)) {
99 valign = RElement.VALIGN_BOTTOM;
100 }
101 else if("baseline".equals(alignText)) {
102 valign = RElement.VALIGN_BASELINE;
103 }
104 else if("absbottom".equals(alignText)) {
105 valign = RElement.VALIGN_ABSBOTTOM;
106 }
107 else {
108 valign = RElement.VALIGN_BASELINE;
109 }
110 }
111 this.valign = valign;
112 }
113
114 public int getVAlign() {
115 return this.valign;
116 }
117
118 public void paintComponent(Graphics g) {
119 super.paintComponent(g);
120 Dimension size = this.getSize();
121 Insets insets = this.getInsets();
122 synchronized(this) {}
123 Image image = this.image;
124 if(image != null) {
125 g.drawImage(image,
126 insets.left, insets.top,
127 size.width - insets.left - insets.right,
128 size.height - insets.top - insets.bottom, this);
129 }
130 else {
131 }
133 if(this.mouseBeingPressed) {
134 Color over = new Color (255, 100, 100, 64);
135 if(over != null) {
136 Color oldColor = g.getColor();
137 try {
138 g.setColor(over);
139 g.fillRect(0, 0, size.width, size.height);
140 } finally {
141 g.setColor(oldColor);
142 }
143 }
144 }
145 }
146
147 public Dimension getPreferredSize() {
148 Dimension ps = this.preferredSize;
149 return ps == null ? new Dimension (0, 0) : ps;
150 }
151
152 public Dimension createPreferredSize(int dw, int dh) {
153 Image img = this.image;
154 if(dw == -1) {
155 dw = img == null ? -1 : img.getWidth(this);
156 if(dw == -1) {
157 dw = 0;
158 }
159 }
160 if(dh == -1) {
161 dh = img == null ? -1 : img.getHeight(this);
162 if(dh == -1) {
163 dh = 0;
164 }
165 }
166 return new Dimension (dw, dh);
167 }
168
169 private final boolean checkPreferredSizeChange() {
170 Dimension newPs = this.createPreferredSize(this.declaredWidth, this.declaredHeight);
171 Dimension ps = this.preferredSize;
172 if(ps == null) {
173 return true;
174 }
175 if(ps.width != newPs.width || ps.height != newPs.height) {
176 this.preferredSize = newPs;
177 return true;
178 }
179 else {
180 return false;
181 }
182 }
183
184
187 public boolean imageUpdate(Image img, int infoflags, int x, int y, final int w, final int h) {
188 if((infoflags & ImageObserver.ALLBITS) != 0 || (infoflags & ImageObserver.FRAMEBITS) != 0) {
189 EventQueue.invokeLater(new Runnable () {
190 public void run() {
191 if(!checkPreferredSizeChange()) {
192 repaint();
193 }
194 else {
195 ruicontrol.preferredSizeInvalidated();
196 }
197 }
198 });
199 }
200 return true;
201 }
202
203
206 public void imageUpdate(Image img, final int w, final int h) {
207 EventQueue.invokeLater(new Runnable () {
208 public void run() {
209 if(!checkPreferredSizeChange()) {
210 repaint();
211 }
212 else {
213 ruicontrol.preferredSizeInvalidated();
214 }
215 }
216 });
217 }
218
219 public boolean paintSelection(Graphics g, boolean inSelection, RenderableSpot startPoint, RenderableSpot endPoint) {
220 return inSelection;
221 }
222
223 public void imageLoaded(ImageEvent event) {
224 Image image = event.image;
226 this.image = image;
229 int width = image.getWidth(this);
230 int height = image.getHeight(this);
231 if(width != -1 && height != -1) {
232 this.imageUpdate(image, width, height);
233 }
234 }
235
236 public void resetInput() {
237 }
239
240 }
250 |
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