Java 1.2 How-To

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Text File | 1997-08-16 | 13KB | 1,299 lines

<string> GraphicsApplet <string> Min-Kyu Lee <integer> 15 <string> This example is from : <string> <string> HOOKED ON JAVA <string> Arthur van Hoff, Sami Shaio, Orca Starbuck. <string> Addison-Wesley Publishing Company. <string> <string> An applet that draws different shapes depending <string> on the configuration of the HTML tag. It <string> accepts the following attributes in addition <string> to the standard attributes: <string> <string> SHAPE - on of "Line", "Rectangle", "String" or "Image" <string> COLOR - which foreground color to use. <string> TEXT - If SHAPE is "String" this is the text to draw. <string> IMAGE - If SHAPE is "Image" this is the image to draw. <string> <string> <integer> 2 <string> java.awt.* <string> java.applet.* <storable> <string> TGraph <integer> 6 <storable> <string> TJavaClass <integer> 12 <integer> 17 <integer> 282 <integer> 372 <string> Applet <integer> 0 <integer> 20 <storable> <string> TJavaConstructor <string> <string> <integer> 0 <integer> 0 <storable> <string> TJavaMethod <string> destroy <string> <integer> 0 <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 0 <storable> <string> TJavaMethod <string> getAppletContext <string> AppletContext <integer> 0 <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 0 <storable> <string> TJavaMethod <string> getAppletInfo <string> String <integer> 0 <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 0 <storable> <string> TJavaMethod <string> getAudioClip <string> AudioClip <integer> 1 <storable> <string> TJavaArgument <string> url <string> URL <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 0 <storable> <string> TJavaMethod <string> getAudioClip <string> AudioClip <integer> 2 <storable> <string> TJavaArgument <string> url <string> URL <storable> <string> TJavaArgument <string> name <string> String <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 0 <storable> <string> TJavaMethod <string> getCodeBase <string> URL <integer> 0 <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 0 <storable> <string> TJavaMethod <string> getDocumentBase <string> URL <integer> 0 <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 0 <storable> <string> TJavaMethod <string> getImage <string> Image <integer> 2 <storable> <string> TJavaArgument <string> url <string> URL <storable> <string> TJavaArgument <string> imageName <string> String <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 0 <storable> <string> TJavaMethod <string> getParameter <string> String <integer> 1 <storable> <string> TJavaArgument <string> name <string> String <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 0 <storable> <string> TJavaMethod <string> getParameterInfo <string> String[][] <integer> 0 <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 0 <storable> <string> TJavaMethod <string> init <string> <integer> 0 <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 0 <storable> <string> TJavaMethod <string> isActive <string> boolean <integer> 0 <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 0 <storable> <string> TJavaMethod <string> play <string> <integer> 2 <storable> <string> TJavaArgument <string> url <string> URL <storable> <string> TJavaArgument <string> name <string> String <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 0 <storable> <string> TJavaMethod <string> resize <string> <integer> 1 <storable> <string> TJavaArgument <string> dim <string> Dimension <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 0 <storable> <string> TJavaMethod <string> resize <string> <integer> 2 <storable> <string> TJavaArgument <string> width <string> int <storable> <string> TJavaArgument <string> height <string> int <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 0 <storable> <string> TJavaMethod <string> setStub <string> <integer> 1 <storable> <string> TJavaArgument <string> stub <string> AppletStub <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> TRUE <boolean> FALSE <string> <integer> 0 <storable> <string> TJavaMethod <string> showStatus <string> <integer> 1 <storable> <string> TJavaArgument <string> message <string> String <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 0 <storable> <string> TJavaMethod <string> start <string> <integer> 0 <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 0 <storable> <string> TJavaMethod <string> stop <string> <integer> 0 <integer> 0 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 0 <integer> 0 <boolean> FALSE <boolean> FALSE <integer> 0 <storable> <string> TJavaInterface <integer> 302 <integer> 17 <integer> 532 <integer> 162 <string> AppletContext <integer> 0 <integer> 7 <storable> <string> TJavaOperation <string> getApplet <string> Applet <integer> 1 <storable> <string> TJavaArgument <string> name <string> String <storable> <string> TJavaOperation <string> getApplets <string> Enumeration <integer> 0 <storable> <string> TJavaOperation <string> getAudioClip <string> AudioClip <integer> 1 <storable> <string> TJavaArgument <string> url <string> URL <storable> <string> TJavaOperation <string> getImage <string> Image <integer> 1 <storable> <string> TJavaArgument <string> url <string> URL <storable> <string> TJavaOperation <string> showDocument <string> <integer> 1 <storable> <string> TJavaArgument <string> url <string> URL <storable> <string> TJavaOperation <string> showDocument <string> <integer> 2 <storable> <string> TJavaArgument <string> url <string> URL <storable> <string> TJavaArgument <string> target <string> String <storable> <string> TJavaOperation <string> showStatus <string> <integer> 1 <storable> <string> TJavaArgument <string> message <string> String <integer> 0 <boolean> FALSE <storable> <string> TJavaInterface <integer> 547 <integer> 17 <integer> 752 <integer> 147 <string> AppletStub <integer> 0 <integer> 6 <storable> <string> TJavaOperation <string> appletResize <string> <integer> 2 <storable> <string> TJavaArgument <string> width <string> int <storable> <string> TJavaArgument <string> height <string> int <storable> <string> TJavaOperation <string> getAppletContext <string> AppletContext <integer> 0 <storable> <string> TJavaOperation <string> getCodeBase <string> URL <integer> 0 <storable> <string> TJavaOperation <string> getDocumentBase <string> URL <integer> 0 <storable> <string> TJavaOperation <string> getParameter <string> String <integer> 1 <storable> <string> TJavaArgument <string> name <string> String <storable> <string> TJavaOperation <string> isActive <string> boolean <integer> 0 <integer> 0 <boolean> FALSE <storable> <string> TJavaInterface <integer> 642 <integer> 157 <integer> 752 <integer> 237 <string> AudioClip <integer> 0 <integer> 3 <storable> <string> TJavaOperation <string> loop <string> <integer> 0 <storable> <string> TJavaOperation <string> play <string> <integer> 0 <storable> <string> TJavaOperation <string> stop <string> <integer> 0 <integer> 0 <boolean> FALSE <storable> <string> TJavaClass <integer> 307 <integer> 192 <integer> 632 <integer> 372 <string> GraphicsApplet <integer> 5 <storable> <string> TJavaAttribute <string> appFont <string> Font <string> <integer> 0 <boolean> FALSE <boolean> FALSE <storable> <string> TJavaAttribute <string> appColor <string> Color <string> <integer> 0 <boolean> FALSE <boolean> FALSE <storable> <string> TJavaAttribute <string> appShape <string> String <string> <integer> 0 <boolean> FALSE <boolean> FALSE <storable> <string> TJavaAttribute <string> appText <string> String <string> <integer> 0 <boolean> FALSE <boolean> FALSE <storable> <string> TJavaAttribute <string> image <string> Image <string> <integer> 0 <boolean> FALSE <boolean> FALSE <integer> 4 <storable> <string> TJavaMethod <string> init <string> <integer> 0 <integer> 3 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 20 <string> appFont = new Font("Helvetica", Font.BOLD, <string> 14); <string> String arg = getParameter("COLOR"); <string> if (arg != null) { <string> appColor = colorFromString(arg, <string> Color.red); <string> } <string> appShape = getParameter("SHAPE"); <string> if (appShape == null) { <string> appShape = "Line"; <string> } <string> appText = getParameter("TEXT"); <string> if (appText == null) { <string> appText = "Graphics"; <string> } <string> arg = getParameter("IMAGE"); <string> if (arg != null) { <string> image = getImage(getDocumentBase(), <string> arg); <string> } <storable> <string> TJavaMethod <string> colorFromString <string> Color <integer> 2 <storable> <string> TJavaArgument <string> s <string> String <storable> <string> TJavaArgument <string> defaultColor <string> Color <integer> 3 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 7 <string> Integer i; <string> try { <string> i = Integer.valueOf(s, 16); <string> return new Color(i.intValue()); <string> } catch (NumberFormatException e) { <string> return defaultColor; <string> } <storable> <string> TJavaMethod <string> drawCenteredString <string> <integer> 3 <storable> <string> TJavaArgument <string> s <string> String <storable> <string> TJavaArgument <string> g <string> Graphics <storable> <string> TJavaArgument <string> r <string> Dimension <integer> 3 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 4 <string> FontMetrics fm = g.getFontMetrics(appFont); <string> g.drawString(s, <string> (r.width - fm.stringWidth(s)) / 2, <string> (r.height - fm.getHeight()) / 2); <storable> <string> TJavaMethod <string> paint <string> <integer> 1 <storable> <string> TJavaArgument <string> g <string> Graphics <integer> 3 <boolean> FALSE <boolean> FALSE <boolean> FALSE <boolean> FALSE <string> <integer> 17 <string> Dimension r = size(); <string> g.setColor(appColor); <string> if (appShape.equalsIgnoreCase("line")) { <string> g.drawLine(0, 0, r.width, r.height); <string> } else if <string> (appShape.equalsIgnoreCase("rectangle")) { <string> g.drawRect(0, 0, r.width - 1, r.height <string> - 1); <string> } else if (appShape.equalsIgnoreCase("image")) <string> { <string> g.drawImage(image, 0, 0, r.width, <string> r.height, this); <string> } else if <string> (appShape.equalsIgnoreCase("string")) { <string> g.setFont(appFont); <string> drawCenteredString(appText, g, r); <string> } <integer> 1 <boolean> FALSE <boolean> TRUE <integer> 0 <storable> <string> TInheritance <integer> 137 <integer> 412 <integer> 157 <integer> 432 <integer> 3 <storable> <string> TSuperClassing <integer> 0 <integer> 0 <integer> 4 <integer> 202 <integer> 372 <integer> 202 <integer> 372 <integer> 202 <integer> 372 <integer> 202 <integer> 372 <storable> <string> TSuperClassing <integer> 0 <integer> 5 <integer> 2 <integer> 147 <integer> 372 <integer> 147 <integer> 412 <storable> <string> TSubClassing <integer> 5 <integer> 4 <integer> 3 <integer> 157 <integer> 432 <integer> 467 <integer> 432 <integer> 467 <integer> 372