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
|
package org.libreoffice;
import android.graphics.Bitmap;
import android.util.Log;
import org.libreoffice.kit.Document;
import org.libreoffice.kit.LibreOfficeKit;
import org.libreoffice.kit.Office;
import org.mozilla.gecko.gfx.BufferedCairoImage;
import org.mozilla.gecko.gfx.CairoImage;
import org.mozilla.gecko.gfx.LayerController;
import org.mozilla.gecko.gfx.SubTile;
import java.nio.ByteBuffer;
public class LOKitTileProvider implements TileProvider {
private static final String LOGTAG = LOKitTileProvider.class.getSimpleName();
public static int TILE_SIZE = 256;
public final Office mOffice;
public final Document mDocument;
private final LayerController mLayerController;
private final double mTileWidth;
private final double mTileHeight;
private double mDPI;
private double mWidthTwip;
private double mHeightTwip;
public LOKitTileProvider(LayerController layerController, String input) {
mLayerController = layerController;
mDPI = (double) LOKitShell.getDpi();
mTileWidth = pixelToTwip(TILE_SIZE, mDPI);
mTileHeight = pixelToTwip(TILE_SIZE, mDPI);
LibreOfficeKit.putenv("SAL_LOG=+WARN+INFO-INFO.legacy.osl-INFO.i18nlangtag");
LibreOfficeKit.init(LibreOfficeMainActivity.mAppContext);
mOffice = new Office(LibreOfficeKit.getLibreOfficeKitHandle());
mDocument = mOffice.documentLoad(input);
if (checkDocument()) {
int parts = mDocument.getParts();
Log.i(LOGTAG, "Document parts: " + parts);
if (parts >= 1) {
mDocument.setPart(0);
}
for (int i = 0; i < parts; i++) {
String partName = mDocument.getPartName(i);
if (partName.isEmpty()) {
partName = "Part " + (i + 1);
}
Log.i(LOGTAG, "Document part " + i + " name:'" + partName + "'");
final DocumentPartView partView = new DocumentPartView(i, partName);
LibreOfficeMainActivity.mAppContext.getDocumentPartView().add(partView);
}
LibreOfficeMainActivity.mAppContext.mMainHandler.post(new Runnable() {
@Override
public void run() {
LibreOfficeMainActivity.mAppContext.getDocumentPartViewListAdpater().notifyDataSetChanged();
}
});
}
}
private double twipToPixel(double input, double dpi) {
return input / 1440.0 * dpi;
}
private double pixelToTwip(double input, double dpi) {
return (input / dpi) * 1440.0;
}
private boolean checkDocument() {
if (mDocument == null || !mOffice.getError().isEmpty()) {
Log.e(LOGTAG, "Error at loading: " + mOffice.getError());
return false;
}
mWidthTwip = mDocument.getDocumentWidth();
mHeightTwip = mDocument.getDocumentHeight();
if (mWidthTwip == 0 && mHeightTwip == 0) {
Log.e(LOGTAG, "Document size zero - last error: " + mOffice.getError());
} else {
Log.i(LOGTAG, "Document size: " + mDocument.getDocumentWidth() + " x " + mDocument.getDocumentHeight());
}
return true;
}
@Override
public int getPageWidth() {
return (int) twipToPixel(mWidthTwip, mDPI);
}
@Override
public int getPageHeight() {
return (int) twipToPixel(mHeightTwip, mDPI);
}
@Override
public boolean isReady() {
return mDocument != null;
}
@Override
public SubTile createTile(int x, int y) {
ByteBuffer buffer = ByteBuffer.allocateDirect(TILE_SIZE * TILE_SIZE * 4);
Bitmap bitmap = Bitmap.createBitmap(TILE_SIZE, TILE_SIZE, Bitmap.Config.ARGB_8888);
mDocument.paintTile(buffer, TILE_SIZE, TILE_SIZE, (int) pixelToTwip(x, mDPI), (int) pixelToTwip(y, mDPI), (int) mTileWidth, (int) mTileHeight);
bitmap.copyPixelsFromBuffer(buffer);
CairoImage image = new BufferedCairoImage(bitmap);
SubTile tile = new SubTile(image, x, y);
tile.beginTransaction();
return tile;
}
@Override
public Bitmap thumbnail() {
ByteBuffer buffer = ByteBuffer.allocateDirect(TILE_SIZE * TILE_SIZE * 4);
Bitmap bitmap = Bitmap.createBitmap(TILE_SIZE, TILE_SIZE, Bitmap.Config.ARGB_8888);
int widthPixel = getPageWidth();
int heightPixel = getPageHeight();
if (widthPixel > heightPixel) {
double ratio = heightPixel / (double) widthPixel;
widthPixel = 1000;
heightPixel = (int) (widthPixel * ratio);
} else {
double ratio = widthPixel / (double) heightPixel;
heightPixel = 1000;
widthPixel = (int) (heightPixel * ratio);
}
mDocument.paintTile(buffer, widthPixel, heightPixel, 0, 0, (int) mWidthTwip, (int) mHeightTwip);
return bitmap;
}
@Override
public void changePart(int partIndex) {
mDocument.setPart(partIndex);
}
}
|
