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| a/src/qtgui/rclm_preview.cpp | b/src/qtgui/rclm_preview.cpp | ||
|---|---|---|---|
... |
... |
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| 229 | 229 | ||
| 230 | if (nxt) |
230 | if (nxt) |
| 231 | docnum++; |
231 | docnum++; |
| 232 | else |
232 | else |
| 233 | docnum--; |
233 | docnum--; |
| 234 | if (docnum < 0 || m_source.isNull() || docnum >= m_source->getResCnt()) {
|
234 | if (docnum < 0 || !m_source || docnum >= m_source->getResCnt()) {
|
| 235 | QApplication::beep(); |
235 | QApplication::beep(); |
| 236 | return; |
236 | return; |
| 237 | } |
237 | } |
| 238 | 238 | ||
| 239 | Rcl::Doc doc; |
239 | Rcl::Doc doc; |