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Lines 27-36
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| 27 |
G_LOCK_DEFINE_STATIC (pageSearch); |
27 |
G_LOCK_DEFINE_STATIC (pageSearch); |
| 28 |
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28 |
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| 29 |
// Constants. |
29 |
// Constants. |
| 30 |
static const gdouble ZOOM_IN_FACTOR = 1.2; |
30 |
static const gint MAX_ZOOM_STEPS = 19; |
| 31 |
static const gdouble ZOOM_IN_MAX = 4.0; |
31 |
static const gdouble ZOOM_FACTORS[MAX_ZOOM_STEPS] = |
| 32 |
static const gdouble ZOOM_OUT_FACTOR = (1.0 / ZOOM_IN_FACTOR); |
32 |
{ 0.1, 0.13, 0.2, 0.25, 0.3, 0.4, 0.5, 0.6, 0.8, // zoom out |
| 33 |
static const gdouble ZOOM_OUT_MAX = 0.05409; |
33 |
1.0, // default |
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34 |
1.25, 1.5, 2.0, 2.5, 3.0, 4.0, 5.0, 6.0, 8.0 }; // zoom in |
| 34 |
static const guint CACHE_SIZE = 3; |
35 |
static const guint CACHE_SIZE = 3; |
| 35 |
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36 |
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| 36 |
/// This is the error domain that will be used to report Document's errors. |
37 |
/// This is the error domain that will be used to report Document's errors. |
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Lines 148-153
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| 148 |
m_Scale = 1.0f; |
149 |
m_Scale = 1.0f; |
| 149 |
m_Subject = NULL; |
150 |
m_Subject = NULL; |
| 150 |
m_Title = NULL; |
151 |
m_Title = NULL; |
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152 |
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| 153 |
m_zoomStepsPerformed = 9; |
| 151 |
} |
154 |
} |
| 152 |
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155 |
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| 153 |
/// |
156 |
/// |
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Lines 1216-1233
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| 1216 |
gboolean |
1219 |
gboolean |
| 1217 |
IDocument::canZoomIn (void) |
1220 |
IDocument::canZoomIn (void) |
| 1218 |
{ |
1221 |
{ |
| 1219 |
return ( getZoom () * ZOOM_IN_FACTOR <= ZOOM_IN_MAX ); |
1222 |
return getZoom () < ZOOM_FACTORS[MAX_ZOOM_STEPS-1]; |
| 1220 |
} |
1223 |
} |
| 1221 |
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1224 |
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| 1222 |
/// |
1225 |
/// |
| 1223 |
/// @brief Checks if is possible to zoom out. |
1226 |
/// @brief Checks if is possible to zoom out. |
| 1224 |
/// |
1227 |
/// |
| 1225 |
/// Checks if after zooming out the zoom level will be above the min level. |
1228 |
/// Checks if after zooming out the zoom level will be below the min level. |
| 1226 |
/// |
1229 |
/// |
| 1227 |
gboolean |
1230 |
gboolean |
| 1228 |
IDocument::canZoomOut (void) |
1231 |
IDocument::canZoomOut (void) |
| 1229 |
{ |
1232 |
{ |
| 1230 |
return ( getZoom () * ZOOM_OUT_FACTOR >= ZOOM_OUT_MAX ); |
1233 |
return getZoom () > ZOOM_FACTORS[0]; |
| 1231 |
} |
1234 |
} |
| 1232 |
|
1235 |
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| 1233 |
/// |
1236 |
/// |
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Lines 1251-1258
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| 1251 |
{ |
1254 |
{ |
| 1252 |
if ( ABS (zoom - m_Scale) > 0.00001 ) |
1255 |
if ( ABS (zoom - m_Scale) > 0.00001 ) |
| 1253 |
{ |
1256 |
{ |
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1257 |
gint idx; |
| 1258 |
gint lim = MAX_ZOOM_STEPS - 1; |
| 1259 |
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| 1254 |
G_LOCK (JobRender); |
1260 |
G_LOCK (JobRender); |
| 1255 |
m_Scale = CLAMP (zoom, ZOOM_OUT_MAX, ZOOM_IN_MAX); |
1261 |
m_Scale = CLAMP (zoom, ZOOM_FACTORS[0], ZOOM_FACTORS[MAX_ZOOM_STEPS-1]); |
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1262 |
for (idx = 1; idx < lim; ++idx) |
| 1263 |
if ( CLAMP ( m_Scale, ZOOM_FACTORS[idx-1], ZOOM_FACTORS[idx] ) |
| 1264 |
== m_Scale ) |
| 1265 |
m_zoomStepsPerformed = idx - 1; |
| 1256 |
refreshCache (); |
1266 |
refreshCache (); |
| 1257 |
G_UNLOCK (JobRender); |
1267 |
G_UNLOCK (JobRender); |
| 1258 |
notifyPageZoomed (); |
1268 |
notifyPageZoomed (); |
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Lines 1270-1279
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| 1270 |
void |
1280 |
void |
| 1271 |
IDocument::zoomIn (void) |
1281 |
IDocument::zoomIn (void) |
| 1272 |
{ |
1282 |
{ |
| 1273 |
if (canZoomIn ()) |
1283 |
zoomInOutWrapper(0); |
| 1274 |
{ |
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| 1275 |
setZoom (getZoom () * ZOOM_IN_FACTOR); |
| 1276 |
} |
| 1277 |
} |
1284 |
} |
| 1278 |
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1285 |
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| 1279 |
/// |
1286 |
/// |
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Lines 1287-1296
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| 1287 |
void |
1294 |
void |
| 1288 |
IDocument::zoomOut (void) |
1295 |
IDocument::zoomOut (void) |
| 1289 |
{ |
1296 |
{ |
| 1290 |
if (canZoomOut ()) |
1297 |
zoomInOutWrapper(-1); |
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1298 |
} |
| 1299 |
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| 1300 |
/// |
| 1301 |
/// @brief Zooms In or Out |
| 1302 |
/// |
| 1303 |
/// Common routine for zoomIn() and zoomOut() to exclude code duplication when |
| 1304 |
/// making decision on value which should be added or to substracted to the |
| 1305 |
/// current zoom level |
| 1306 |
/// |
| 1307 |
/// @param zoomDirection Points whether to zoom in or zoom out the document. |
| 1308 |
/// |
| 1309 |
/// @see zoomIn() zoomOut() |
| 1310 |
/// |
| 1311 |
void |
| 1312 |
IDocument::zoomInOutWrapper (gint zoomDirection) |
| 1313 |
{ |
| 1314 |
if ( (zoomDirection < 0) ? canZoomOut () : canZoomIn () ) |
| 1315 |
{ |
| 1316 |
gdouble currentScale = getZoom (); |
| 1317 |
|
| 1318 |
if ( ZOOM_FACTORS[m_zoomStepsPerformed] == currentScale ) |
| 1319 |
m_zoomStepsPerformed += (zoomDirection == 0) ? 1 : -1; |
| 1320 |
else |
| 1291 |
{ |
1321 |
{ |
| 1292 |
setZoom (getZoom () * ZOOM_OUT_FACTOR); |
1322 |
gint idx; |
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1323 |
gint lim = MAX_ZOOM_STEPS - 1; |
| 1324 |
|
| 1325 |
for ( idx = 1; idx < lim; ++idx ) |
| 1326 |
if ( CLAMP ( currentScale, ZOOM_FACTORS[idx-1], ZOOM_FACTORS[idx] ) |
| 1327 |
== currentScale ) |
| 1328 |
m_zoomStepsPerformed = idx + zoomDirection; |
| 1293 |
} |
1329 |
} |
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1330 |
setZoom ( ZOOM_FACTORS[m_zoomStepsPerformed] ); |
| 1331 |
} |
| 1294 |
} |
1332 |
} |
| 1295 |
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1333 |
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| 1296 |
/// |
1334 |
/// |
