1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
|
package com.artifex.mupdfdemo;
import java.util.ArrayList;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.PointF;
import android.graphics.RectF;
public class MuPDFCore
{
/* load our native library */
static {
System.loadLibrary("mupdf");
}
/* Readable members */
private int numPages = -1;
private float pageWidth;
private float pageHeight;
private long globals;
private byte fileBuffer[];
private String file_format;
/* The native functions */
private native long openFile(String filename);
private native long openBuffer();
private native String fileFormatInternal();
private native int countPagesInternal();
private native void gotoPageInternal(int localActionPageNum);
private native float getPageWidth();
private native float getPageHeight();
private native void drawPage(Bitmap bitmap,
int pageW, int pageH,
int patchX, int patchY,
int patchW, int patchH);
private native void updatePageInternal(Bitmap bitmap,
int page,
int pageW, int pageH,
int patchX, int patchY,
int patchW, int patchH);
private native RectF[] searchPage(String text);
private native TextChar[][][][] text();
private native byte[] textAsHtml();
private native void addMarkupAnnotationInternal(PointF[] quadPoints, int type);
private native void addInkAnnotationInternal(PointF[][] arcs);
private native void deleteAnnotationInternal(int annot_index);
private native int passClickEventInternal(int page, float x, float y);
private native void setFocusedWidgetChoiceSelectedInternal(String [] selected);
private native String [] getFocusedWidgetChoiceSelected();
private native String [] getFocusedWidgetChoiceOptions();
private native int setFocusedWidgetTextInternal(String text);
private native String getFocusedWidgetTextInternal();
private native int getFocusedWidgetTypeInternal();
private native LinkInfo [] getPageLinksInternal(int page);
private native RectF[] getWidgetAreasInternal(int page);
private native Annotation[] getAnnotationsInternal(int page);
private native OutlineItem [] getOutlineInternal();
private native boolean hasOutlineInternal();
private native boolean needsPasswordInternal();
private native boolean authenticatePasswordInternal(String password);
private native MuPDFAlertInternal waitForAlertInternal();
private native void replyToAlertInternal(MuPDFAlertInternal alert);
private native void startAlertsInternal();
private native void stopAlertsInternal();
private native void destroying();
private native boolean hasChangesInternal();
private native void saveInternal();
public static native boolean javascriptSupported();
public MuPDFCore(Context context, String filename) throws Exception
{
globals = openFile(filename);
if (globals == 0)
{
throw new Exception(String.format(context.getString(R.string.cannot_open_file_Path), filename));
}
file_format = fileFormatInternal();
}
public MuPDFCore(Context context, byte buffer[]) throws Exception
{
fileBuffer = buffer;
globals = openBuffer();
if (globals == 0)
{
throw new Exception(context.getString(R.string.cannot_open_buffer));
}
file_format = fileFormatInternal();
}
public int countPages()
{
if (numPages < 0)
numPages = countPagesSynchronized();
return numPages;
}
public String fileFormat()
{
return file_format;
}
private synchronized int countPagesSynchronized() {
return countPagesInternal();
}
/* Shim function */
private void gotoPage(int page)
{
if (page > numPages-1)
page = numPages-1;
else if (page < 0)
page = 0;
gotoPageInternal(page);
this.pageWidth = getPageWidth();
this.pageHeight = getPageHeight();
}
public synchronized PointF getPageSize(int page) {
gotoPage(page);
return new PointF(pageWidth, pageHeight);
}
public MuPDFAlert waitForAlert() {
MuPDFAlertInternal alert = waitForAlertInternal();
return alert != null ? alert.toAlert() : null;
}
public void replyToAlert(MuPDFAlert alert) {
replyToAlertInternal(new MuPDFAlertInternal(alert));
}
public void stopAlerts() {
stopAlertsInternal();
}
public void startAlerts() {
startAlertsInternal();
}
public synchronized void onDestroy() {
destroying();
globals = 0;
}
public synchronized Bitmap drawPage(int page,
int pageW, int pageH,
int patchX, int patchY,
int patchW, int patchH) {
gotoPage(page);
Bitmap bm = Bitmap.createBitmap(patchW, patchH, Config.ARGB_8888);
drawPage(bm, pageW, pageH, patchX, patchY, patchW, patchH);
return bm;
}
public synchronized Bitmap updatePage(BitmapHolder h, int page,
int pageW, int pageH,
int patchX, int patchY,
int patchW, int patchH) {
Bitmap bm = null;
Bitmap old_bm = h.getBm();
if (old_bm == null)
return null;
bm = old_bm.copy(Bitmap.Config.ARGB_8888, false);
old_bm = null;
updatePageInternal(bm, page, pageW, pageH, patchX, patchY, patchW, patchH);
return bm;
}
public synchronized PassClickResult passClickEvent(int page, float x, float y) {
boolean changed = passClickEventInternal(page, x, y) != 0;
switch (WidgetType.values()[getFocusedWidgetTypeInternal()])
{
case TEXT:
return new PassClickResultText(changed, getFocusedWidgetTextInternal());
case LISTBOX:
case COMBOBOX:
return new PassClickResultChoice(changed, getFocusedWidgetChoiceOptions(), getFocusedWidgetChoiceSelected());
default:
return new PassClickResult(changed);
}
}
public synchronized boolean setFocusedWidgetText(int page, String text) {
boolean success;
gotoPage(page);
success = setFocusedWidgetTextInternal(text) != 0 ? true : false;
return success;
}
public synchronized void setFocusedWidgetChoiceSelected(String [] selected) {
setFocusedWidgetChoiceSelectedInternal(selected);
}
public synchronized LinkInfo [] getPageLinks(int page) {
return getPageLinksInternal(page);
}
public synchronized RectF [] getWidgetAreas(int page) {
return getWidgetAreasInternal(page);
}
public synchronized Annotation [] getAnnoations(int page) {
return getAnnotationsInternal(page);
}
public synchronized RectF [] searchPage(int page, String text) {
gotoPage(page);
return searchPage(text);
}
public synchronized byte[] html(int page) {
gotoPage(page);
return textAsHtml();
}
public synchronized TextWord [][] textLines(int page) {
gotoPage(page);
TextChar[][][][] chars = text();
// The text of the page held in a hierarchy (blocks, lines, spans).
// Currently we don't need to distinguish the blocks level or
// the spans, and we need to collect the text into words.
ArrayList<TextWord[]> lns = new ArrayList<TextWord[]>();
for (TextChar[][][] bl: chars) {
if (bl == null)
continue;
for (TextChar[][] ln: bl) {
ArrayList<TextWord> wds = new ArrayList<TextWord>();
TextWord wd = new TextWord();
for (TextChar[] sp: ln) {
for (TextChar tc: sp) {
if (tc.c != ' ') {
wd.Add(tc);
} else if (wd.w.length() > 0) {
wds.add(wd);
wd = new TextWord();
}
}
}
if (wd.w.length() > 0)
wds.add(wd);
if (wds.size() > 0)
lns.add(wds.toArray(new TextWord[wds.size()]));
}
}
return lns.toArray(new TextWord[lns.size()][]);
}
public synchronized void addMarkupAnnotation(int page, PointF[] quadPoints, Annotation.Type type) {
gotoPage(page);
addMarkupAnnotationInternal(quadPoints, type.ordinal());
}
public synchronized void addInkAnnotation(int page, PointF[][] arcs) {
gotoPage(page);
addInkAnnotationInternal(arcs);
}
public synchronized void deleteAnnotation(int page, int annot_index) {
gotoPage(page);
deleteAnnotationInternal(annot_index);
}
public synchronized boolean hasOutline() {
return hasOutlineInternal();
}
public synchronized OutlineItem [] getOutline() {
return getOutlineInternal();
}
public synchronized boolean needsPassword() {
return needsPasswordInternal();
}
public synchronized boolean authenticatePassword(String password) {
return authenticatePasswordInternal(password);
}
public synchronized boolean hasChanges() {
return hasChangesInternal();
}
public synchronized void save() {
saveInternal();
}
}
|