Source Code Cross Referenced for PDAFButtonField.java in  » PDF » jPod » de » intarsys » pdf » pd » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » PDF » jPod » de.intarsys.pdf.pd 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright (c) 2007, intarsys consulting GmbH
003:         *
004:         * Redistribution and use in source and binary forms, with or without
005:         * modification, are permitted provided that the following conditions are met:
006:         *
007:         * - Redistributions of source code must retain the above copyright notice,
008:         *   this list of conditions and the following disclaimer.
009:         *
010:         * - Redistributions in binary form must reproduce the above copyright notice,
011:         *   this list of conditions and the following disclaimer in the documentation
012:         *   and/or other materials provided with the distribution.
013:         *
014:         * - Neither the name of intarsys nor the names of its contributors may be used
015:         *   to endorse or promote products derived from this software without specific
016:         *   prior written permission.
017:         *
018:         * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
019:         * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
020:         * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
021:         * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
022:         * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
023:         * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
024:         * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
025:         * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
026:         * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
027:         * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
028:         * POSSIBILITY OF SUCH DAMAGE.
029:         */
030:        package de.intarsys.pdf.pd;
031:
032:        import java.util.HashSet;
033:        import java.util.Iterator;
034:        import java.util.Set;
035:        import de.intarsys.pdf.cos.COSBasedObject;
036:        import de.intarsys.pdf.cos.COSName;
037:        import de.intarsys.pdf.cos.COSNull;
038:        import de.intarsys.pdf.cos.COSObject;
039:        import de.intarsys.pdf.cos.COSString;
040:        import de.intarsys.tools.string.StringTools;
041:
042:        /**
043:         * A logical button within an AcroForm.
044:         * 
045:         */
046:        public class PDAFButtonField extends PDAcroFormField {
047:            public static class MetaClass extends PDAcroFormField.MetaClass {
048:                protected MetaClass(Class instanceClass) {
049:                    super (instanceClass);
050:                }
051:
052:                protected COSBasedObject doCreateCOSBasedObject(COSObject object) {
053:                    return new PDAFButtonField(object);
054:                }
055:            }
056:
057:            /** The meta class instance */
058:            public static final MetaClass META = new MetaClass(MetaClass.class
059:                    .getDeclaringClass());
060:
061:            static public final COSName DK_Opt = COSName.constant("Opt");
062:
063:            protected PDAFButtonField(COSObject object) {
064:                super (object);
065:            }
066:
067:            /**
068:             * Return true when this is an object with checkbox behavior.
069:             * 
070:             * @return true when this is an object with checkbox behavior.
071:             */
072:            public boolean isCheckbox() {
073:                return !isPushbutton() && !isRadio();
074:            }
075:
076:            /*
077:             * (non-Javadoc)
078:             * 
079:             * @see de.intarsys.pdf.pd.PDAcroFormField#cosGetExpectedFieldType()
080:             */
081:            public COSName cosGetExpectedFieldType() {
082:                return CN_FT_Btn;
083:            }
084:
085:            /**
086:             * Make this a push button.
087:             * 
088:             * @param f
089:             */
090:            public void setPushbutton(boolean f) {
091:                getFieldFlags().setPushbutton(f);
092:            }
093:
094:            /**
095:             * <code>true</code> if this is a pushbutton.
096:             * 
097:             * @return <code>true</code> if this is a pushbutton.
098:             */
099:            public boolean isPushbutton() {
100:                return getFieldFlags().isPushbutton();
101:            }
102:
103:            /**
104:             * <code>true</code> if this is a radio button.
105:             * 
106:             * @return <code>true</code> if this is a radio button.
107:             */
108:            public boolean isRadio() {
109:                return getFieldFlags().isRadio();
110:            }
111:
112:            /*
113:             * (non-Javadoc)
114:             * 
115:             * @see de.intarsys.pdf.pd.PDAcroFormField#isTypeBtn()
116:             */
117:            public boolean isTypeBtn() {
118:                return true;
119:            }
120:
121:            /*
122:             * (non-Javadoc)
123:             * 
124:             * @see de.intarsys.pdf.pd.PDAcroFormField#cosSetValue(de.intarsys.pdf.cos.COSObject)
125:             */
126:            public COSObject cosSetValue(COSObject state) {
127:                if (isCheckbox() || isRadio()) {
128:                    COSName newState;
129:                    if (state instanceof  COSName) {
130:                        newState = (COSName) state;
131:                    } else {
132:                        if (state == null) {
133:                            newState = PDWidgetAnnotation.CN_State_Off;
134:                        } else {
135:                            newState = COSName.create(state.stringValue());
136:                        }
137:                    }
138:
139:                    for (Iterator i = getAnnotations().iterator(); i.hasNext();) {
140:                        PDWidgetAnnotation annot = (PDWidgetAnnotation) i
141:                                .next();
142:                        Set states = annot.getAppearanceStates();
143:                        if (states.contains(newState)) {
144:                            annot.setAppearanceState((COSName) newState
145:                                    .copyOptional());
146:                        } else {
147:                            annot
148:                                    .setAppearanceState(PDWidgetAnnotation.CN_State_Off);
149:                        }
150:                    }
151:                    return super .cosSetValue(newState);
152:                }
153:                return COSNull.NULL;
154:            }
155:
156:            /*
157:             * (non-Javadoc)
158:             * 
159:             * @see de.intarsys.pdf.pd.PDAcroFormField#setValueString(java.lang.String)
160:             */
161:            public void setValueString(String value) {
162:                if (value == null) {
163:                    super .setValueString(value);
164:                }
165:                if (isCheckbox() || isRadio()) {
166:                    COSName state = COSName.create(value);
167:                    cosSetValue(state);
168:                }
169:            }
170:
171:            /**
172:             * set the correct appearance state in a button annotation
173:             * 
174:             * <p>
175:             * This code applies to checkboxes only
176:             * </p>
177:             * 
178:             * @param annot
179:             *            the button annotation
180:             * @param value
181:             *            the state to be selected
182:             * 
183:             * @return the name of the state
184:             */
185:            protected COSName setButtonAppearanceState(PDAnnotation annot,
186:                    String value) {
187:                // TODO 2 refactor location
188:                COSName state = COSName.create(value);
189:                Set states = annot.getAppearanceStates();
190:                if (!states.contains(state)) {
191:                    COSName offState = COSName.create("Off");
192:                    state = offState;
193:                    value = value.toLowerCase().trim();
194:                    // todo 3 provide property "true" characters
195:                    if (value.equals("1") || value.startsWith("t") || // true
196:                            value.startsWith("y") || // yes
197:                            value.startsWith("w") || // wahr
198:                            value.startsWith("j") || // ja
199:                            value.startsWith("x") // ankreuzen
200:                    ) {
201:                        for (Iterator i = states.iterator(); i.hasNext();) {
202:                            COSName aState = (COSName) i.next();
203:                            if (!aState.equals(offState)) {
204:                                state = (COSName) aState.copyOptional();
205:                                break;
206:                            }
207:                        }
208:                    }
209:                }
210:                annot.setAppearanceState(state);
211:                return state;
212:            }
213:
214:            /**
215:             * The {@link Set} of possible states the button can enter.
216:             * 
217:             * @return The {@link Set} of possible states the button can enter.
218:             */
219:            public Set getAvailableButtonAppearanceStates() {
220:                // todo change signature
221:                Set availableStates = new HashSet();
222:                for (Iterator i = getAnnotations().iterator(); i.hasNext();) {
223:                    PDAnnotation child = (PDAnnotation) i.next();
224:                    availableStates.addAll(child.getAppearanceStates());
225:                }
226:                return availableStates;
227:            }
228:
229:            /**
230:             * The {@link Set} of possible non - off states the button can enter.
231:             * 
232:             * @return The {@link Set} of possible non - off states the button can
233:             *         enter.
234:             */
235:            public Set getAvailableButtonAppearanceStatesNoOff() {
236:                // todo change signature
237:                Set availableStates = getAvailableButtonAppearanceStates();
238:                COSName offState = COSName.create("Off");
239:                availableStates.remove(offState);
240:                return availableStates;
241:            }
242:
243:            /*
244:             * (non-Javadoc)
245:             * 
246:             * @see de.intarsys.pdf.pd.PDAcroFormField#reset()
247:             */
248:            public void reset() {
249:                //
250:                COSObject value = cosGetDefaultValue();
251:                if (value.isNull()) {
252:                    value = COSString.create(StringTools.EMPTY);
253:                } else {
254:                    value = value.copyOptional();
255:                }
256:                cosSetValue(value);
257:            }
258:
259:            /**
260:             * <code>true</code> if this is checked.
261:             * 
262:             * @return <code>true</code> if this is checked.
263:             */
264:            public boolean isChecked() {
265:                if (isCheckbox()) {
266:                    return !PDWidgetAnnotation.CN_State_Off
267:                            .equals(getAnyAnnotation().getAppearanceState());
268:                }
269:                return false;
270:            }
271:        }
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