/*
* Copyright 2000-2009 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.compiler;
import com.intellij.compiler.instrumentation.InstrumentationClassFinder;
import com.intellij.uiDesigner.lw.FontDescriptor;
import com.intellij.uiDesigner.lw.LwComponent;
import com.intellij.uiDesigner.lw.LwIntrospectedProperty;
import org.jetbrains.org.objectweb.asm.Label;
import org.jetbrains.org.objectweb.asm.Type;
import org.jetbrains.org.objectweb.asm.commons.GeneratorAdapter;
import org.jetbrains.org.objectweb.asm.commons.Method;
import java.awt.*;
/**
* @author yole
* @noinspection HardCodedStringLiteral
*/
public class FontPropertyCodeGenerator extends PropertyCodeGenerator {
private static final Type ourFontType = Type.getType(Font.class);
private static final Type ourUIManagerType = Type.getType("Ljavax/swing/UIManager;");
private static final Type ourObjectType = Type.getType(Object.class);
private static final Type ourStringType = Type.getType(String.class);
private static final Method ourInitMethod = Method.getMethod("void <init>(java.lang.String,int,int)");
private static final Method ourUIManagerGetFontMethod = new Method("getFont", ourFontType, new Type[]{ourObjectType});
private static final Method ourGetNameMethod = new Method("getName", ourStringType, new Type[0]);
private static final Method ourGetSizeMethod = new Method("getSize", Type.INT_TYPE, new Type[0]);
private static final Method ourGetStyleMethod = new Method("getStyle", Type.INT_TYPE, new Type[0]);
private static final Method ourCanDisplay = new Method("canDisplay", Type.BOOLEAN_TYPE, new Type[]{Type.CHAR_TYPE});
public boolean generateCustomSetValue(final LwComponent lwComponent,
final InstrumentationClassFinder.PseudoClass componentClass,
final LwIntrospectedProperty property,
final GeneratorAdapter generator,
GetFontMethodProvider fontMethodProvider,
final int componentLocal, final String formClassName) {
FontDescriptor descriptor = (FontDescriptor)property.getPropertyValue(lwComponent);
Label fontNullLabel = generator.newLabel();
generatePushFont(generator, fontMethodProvider, componentLocal, lwComponent, descriptor, property.getReadMethodName(), fontNullLabel);
Method setFontMethod = new Method(property.getWriteMethodName(), Type.VOID_TYPE, new Type[]{ourFontType});
Type componentType = AsmCodeGenerator.typeFromClassName(lwComponent.getComponentClassName());
generator.invokeVirtual(componentType, setFontMethod);
generator.mark(fontNullLabel);
return true;
}
public static void generatePushFont(GeneratorAdapter generator,
GetFontMethodProvider fontMethodProvider,
int componentLocal,
LwComponent lwComponent,
FontDescriptor descriptor,
String readMethodName,
Label fontNullLabel) {
if (descriptor.isFixedFont()) {
generator.loadThis();
generator.push(descriptor.getFontName());
generator.push(descriptor.getFontStyle());
generator.push(descriptor.getFontSize());
generator.loadLocal(componentLocal);
Type componentType = AsmCodeGenerator.typeFromClassName(lwComponent.getComponentClassName());
Method getFontMethod = new Method(readMethodName, ourFontType, new Type[0]);
generator.invokeVirtual(componentType, getFontMethod);
generator.invokeVirtual(fontMethodProvider.getMainClassType(), fontMethodProvider.getFontMethod());
}
else {
generator.push(descriptor.getSwingFont());
generator.invokeStatic(ourUIManagerType, ourUIManagerGetFontMethod);
}
if (fontNullLabel != null) {
int fontResult = generator.newLocal(ourFontType);
generator.storeLocal(fontResult);
generator.loadLocal(fontResult);
generator.ifNull(fontNullLabel);
generator.loadLocal(componentLocal);
generator.loadLocal(fontResult);
}
}
public void generatePushValue(final GeneratorAdapter generator, final Object value) {
throw new IllegalStateException("Unknown font type");
}
public static Method createGetFontMethod() {
return new Method("getFont" + System.currentTimeMillis(), ourFontType,
new Type[]{ourStringType, Type.INT_TYPE, Type.INT_TYPE, ourFontType});
}
// Source code for this bytecode in com/intellij/uiDesigner/make/FormSourceCodeGenerator.java:299
public static void buildGetFontMethod(GeneratorAdapter generator) {
Label fontNonNull = new Label();
generator.loadArg(3); // font
generator.ifNonNull(fontNonNull);
generator.push((String)null);
generator.returnValue();
generator.mark(fontNonNull);
Label nameNonNull = new Label();
generator.loadArg(0); // name
generator.ifNonNull(nameNonNull);
generator.loadArg(3); // font
generator.invokeVirtual(ourFontType, ourGetNameMethod);
int nameLocal = generator.newLocal(ourStringType);
generator.storeLocal(nameLocal);
Label createFont = new Label();
generator.goTo(createFont);
generator.mark(nameNonNull);
generator.newInstance(ourFontType);
generator.dup();
generator.loadArg(0); // name
generator.push(Font.PLAIN);
generator.push(10);
generator.invokeConstructor(ourFontType, ourInitMethod);
int testFont = generator.newLocal(ourFontType);
generator.storeLocal(testFont);
Label fontGetNameLabel = new Label();
generator.loadLocal(testFont);
generator.push('a');
generator.invokeVirtual(ourFontType, ourCanDisplay);
generator.ifZCmp(GeneratorAdapter.EQ, fontGetNameLabel);
generator.loadLocal(testFont);
generator.push('1');
generator.invokeVirtual(ourFontType, ourCanDisplay);
generator.ifZCmp(GeneratorAdapter.EQ, fontGetNameLabel);
generator.loadArg(0); // name
generator.storeLocal(nameLocal);
generator.goTo(createFont);
generator.mark(fontGetNameLabel);
generator.loadArg(3); // font
generator.invokeVirtual(ourFontType, ourGetNameMethod);
generator.storeLocal(nameLocal);
generator.mark(createFont);
generator.newInstance(ourFontType);
generator.dup();
generator.loadLocal(nameLocal);
Label checkStyle1 = new Label();
Label checkStyle2 = new Label();
generator.loadArg(1); // style
generator.ifZCmp(GeneratorAdapter.LT, checkStyle1);
generator.loadArg(1); // style
generator.goTo(checkStyle2);
generator.mark(checkStyle1);
generator.loadArg(3); // font
generator.invokeVirtual(ourFontType, ourGetStyleMethod);
generator.mark(checkStyle2);
Label checkSize1 = new Label();
Label checkSize2 = new Label();
generator.loadArg(2); // size
generator.ifZCmp(GeneratorAdapter.LT, checkSize1);
generator.loadArg(2); // size
generator.goTo(checkSize2);
generator.mark(checkSize1);
generator.loadArg(3); // font
generator.invokeVirtual(ourFontType, ourGetSizeMethod);
generator.mark(checkSize2);
generator.invokeConstructor(ourFontType, ourInitMethod);
generator.returnValue();
generator.endMethod();
}
}