增加磁盘空间不足的提示

app/scanner/mainwindow.cpp

@@ -47,7 +47,7 @@ MainWindow::MainWindow(QWidget *parent)
     , m_multiIndex(-1)
     , m_relation(false)
     , m_modify(false)
-    , m_scanType(1)
+    , m_scanType(0)
     , m_scanInsertPos(-1)
     , m_scanFileName("")
     , m_scanImgFmtWriter(nullptr)
@@ -229,7 +229,7 @@ MainWindow::MainWindow(QWidget *parent)
     sane_init_ex(&v, sane_ex_callback, this);
 
     m_dlgFullScreen = nullptr;
-    m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle, m_isScanning);
+    m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle && 0 != m_scanType, m_isScanning);
     updateActionStatus();
 }
 
@@ -682,7 +682,7 @@ void MainWindow::on_devMenu_action_triggered()
         }
     }
 
-    m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle, m_isScanning);
+    m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle && 0 != m_scanType, m_isScanning);
     updateActionStatus();
 }
 
@@ -717,7 +717,7 @@ void MainWindow::on_sane_dev_arrive(QString devName)
             }
         }
 
-        m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle, m_isScanning);
+        m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle && 0 != m_scanType, m_isScanning);
         updateActionStatus();
         m_wndStatusBar->setDeviceStatusInfo(devName + tr(" already connected"), false);
         m_dialogLog->addLog(devName + tr(" already connected"), false);
@@ -758,7 +758,7 @@ void MainWindow::on_sane_dev_remove(QString devName)
             ui->menu_device->addAction(m_saneNoDevAction);
         }
 
-        m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle, m_isScanning);
+        m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle && 0 != m_scanType, m_isScanning);
         updateActionStatus();
         m_wndStatusBar->setDeviceStatusInfo(devName + tr(" disconnected"), true);
         m_dialogLog->addLog(devName + tr(" disconnected"), true);
@@ -854,7 +854,7 @@ void MainWindow::on_scan_finish(QString finishInfo, int err)
     }
 
     m_thumb->setAcceptDrops(true);
-    m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle, m_isScanning);
+    m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle && 0 != m_scanType, m_isScanning);
     updateActionStatus();
     m_wndStatusBar->setDeviceStatusInfo(finishInfo, (err != SANE_STATUS_GOOD));
     m_dialogLog->addLog(finishInfo, (err != SANE_STATUS_GOOD));
@@ -864,13 +864,15 @@ void MainWindow::on_scan_finish(QString finishInfo, int err)
 
 void MainWindow::on_continueScan()
 {
-    if (nullptr == m_saneDeviceHandle || m_isScanning)
+    if (nullptr == m_saneDeviceHandle || m_isScanning || 0 == m_scanType)
     {
         return;
     }
 
-    m_scanType = 1;
-    m_scanInsertPos = -1;
+    if (!startSpaceCheck(m_dialogLog))
+    {
+        return;
+    }
 
     SANE_Status ret = sane_start(m_saneDeviceHandle);
     if (ret != SANE_STATUS_GOOD)
@@ -883,7 +885,7 @@ void MainWindow::on_continueScan()
     {
         m_isScanning = true;
         m_thumb->setAcceptDrops(false);
-        m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle, m_isScanning);
+        m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle && 0 != m_scanType, m_isScanning);
         updateActionStatus();
         m_dialogLog->show();
     }
@@ -1142,6 +1144,38 @@ askIfClear MainWindow::startScanMessageBox(QWidget *parent)
     return notClearAndScan;
 }
 
+bool MainWindow::startSpaceCheck(QWidget* parent)
+{
+    qint64 space = 0;
+
+    QList<QStorageInfo> storageInfoList = QStorageInfo::mountedVolumes();
+    foreach(QStorageInfo storage, storageInfoList)
+    {
+        QString savePath;
+        if (1 == m_scanType)
+            savePath = APP_CACHE_PATH;
+        else if (2 == m_scanType)
+            savePath = m_aquireIntoSaveParam.m_savePath;
+        if (0 == savePath.indexOf(storage.rootPath()))
+        {
+            space = storage.bytesAvailable() / 1024 / 1024;
+            break;
+        }
+    }
+
+    assert(0 != space);
+    if (space < 64)
+    {
+        QMessageBox msg(QMessageBox::Information, tr("Information"),
+            tr("Insufficient disk space"), QMessageBox::Yes, parent);
+        msg.setButtonText(QMessageBox::Yes, tr("yes"));
+        msg.exec();
+        return false;
+    }
+
+    return true;
+}
+
 void MainWindow::on_act_openPageNum_triggered()
 {
     int count = 0;
@@ -2083,9 +2117,16 @@ void MainWindow::on_act_acquire_triggered()
     m_scanType = 1;
     m_scanInsertPos = -1;
 
+    if (!startSpaceCheck(this))
+    {
+        m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle && 0 != m_scanType, m_isScanning);
+        return;
+    }
+
     SANE_Status ret = sane_start(m_saneDeviceHandle);
     if (ret != SANE_STATUS_GOOD)
     {
+        m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle && 0 != m_scanType, m_isScanning);
         m_wndStatusBar->setDeviceStatusInfo(tr("start failed"), true);
         m_dialogLog->addLog(tr("start failed"), true);
         HGBase_WriteInfo(HGBASE_INFOTYPE_ERROR, "%s", getStdString(tr("start failed")).c_str());
@@ -2094,7 +2135,7 @@ void MainWindow::on_act_acquire_triggered()
     {
         m_isScanning = true;
         m_thumb->setAcceptDrops(false);
-        m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle, m_isScanning);
+        m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle && 0 != m_scanType, m_isScanning);
         updateActionStatus();
         m_dialogLog->show();
     }
@@ -2119,9 +2160,16 @@ void MainWindow::on_act_acquireSingle_triggered()
     m_scanType = 1;
     m_scanInsertPos = -1;
 
+    if (!startSpaceCheck(this))
+    {
+        m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle && 0 != m_scanType, m_isScanning);
+        return;
+    }
+
     SANE_Status ret = sane_io_control(m_saneDeviceHandle, IO_CTRL_CODE_TEST_SINGLE, nullptr, nullptr);
     if (ret != SANE_STATUS_GOOD)
     {
+        m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle && 0 != m_scanType, m_isScanning);
         m_wndStatusBar->setDeviceStatusInfo(tr("start failed"), true);
         m_dialogLog->addLog(tr("start failed"), true);
         HGBase_WriteInfo(HGBASE_INFOTYPE_ERROR, "%s", getStdString(tr("start failed")).c_str());
@@ -2130,7 +2178,7 @@ void MainWindow::on_act_acquireSingle_triggered()
     {
         m_isScanning = true;
         m_thumb->setAcceptDrops(false);
-        m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle, m_isScanning);
+        m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle && 0 != m_scanType, m_isScanning);
         updateActionStatus();
         m_dialogLog->show();
     }
@@ -2143,15 +2191,31 @@ void MainWindow::on_act_acquireInto_triggered()
         return;
     }
 
+    int count = 0;
+    m_thumb->getItemCount(&count);
+    if (count != 0)
+    {
+        int result = startScanMessageBox(this);
+        if (cancelScan == result)
+            return;
+    }
+
     Dialog_AquireInto dlg(this);
     if (dlg.exec())
     {
         m_scanType = 2;
         m_aquireIntoSaveParam = dlg.getSaveParam();
 
+        if (!startSpaceCheck(this))
+        {
+            m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle && 0 != m_scanType, m_isScanning);
+            return;
+        }
+
         SANE_Status ret = sane_start(m_saneDeviceHandle);
         if (ret != SANE_STATUS_GOOD)
         {
+            m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle && 0 != m_scanType, m_isScanning);
             m_wndStatusBar->setDeviceStatusInfo(tr("start failed"), true);
             m_dialogLog->addLog(tr("start failed"), true);
             HGBase_WriteInfo(HGBASE_INFOTYPE_ERROR, "%s", getStdString(tr("start failed")).c_str());
@@ -2160,7 +2224,7 @@ void MainWindow::on_act_acquireInto_triggered()
         {
             m_isScanning = true;
             m_thumb->setAcceptDrops(false);
-            m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle, m_isScanning);
+            m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle && 0 != m_scanType, m_isScanning);
             updateActionStatus();
             m_dialogLog->show();
         }
@@ -2200,9 +2264,16 @@ void MainWindow::on_act_insertFromScanner_triggered()
             break;
         }
 
+        if (!startSpaceCheck(this))
+        {
+            m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle && 0 != m_scanType, m_isScanning);
+            return;
+        }
+
         SANE_Status ret = sane_start(m_saneDeviceHandle);
         if (ret != SANE_STATUS_GOOD)
         {
+            m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle && 0 != m_scanType, m_isScanning);
             m_wndStatusBar->setDeviceStatusInfo(tr("start failed"), true);
             m_dialogLog->addLog(tr("start failed"), true);
             HGBase_WriteInfo(HGBASE_INFOTYPE_ERROR, "%s", getStdString(tr("start failed")).c_str());
@@ -2211,7 +2282,7 @@ void MainWindow::on_act_insertFromScanner_triggered()
         {
             m_isScanning = true;
             m_thumb->setAcceptDrops(false);
-            m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle, m_isScanning);
+            m_dialogLog->updateStatus(nullptr != m_saneDeviceHandle && 0 != m_scanType, m_isScanning);
             updateActionStatus();
             m_dialogLog->show();
         }

app/scanner/mainwindow.h

@@ -199,6 +199,7 @@ private:
     void updateStatusBarPixelInfo();
     void updateActionStatus();
     askIfClear startScanMessageBox(QWidget* parent);
+    bool startSpaceCheck(QWidget* parent);
 
 private:
     Ui::MainWindow *ui;

ui/HGImgThumb.cpp

@@ -2070,8 +2070,10 @@ void HGImgThumb::mouseMoveEvent(QMouseEvent* e)
                 QRect textRect(0, 0, pixmap.width(), pixmap.height());
                 char chCount[12];
                 sprintf(chCount, "%d", urls.count());
-                QFont font("微软雅黑", 16);
-                painter.setFont(font);
+                QFont countFont("微软雅黑", pixmap.width() / 4);
+                painter.setFont(countFont);
+                QPen countPen(QColor(0, 0, 0, 200));
+                painter.setPen(countPen);
                 painter.drawText(textRect, Qt::AlignHCenter | Qt::AlignVCenter, chCount);
 
                 drag->setPixmap(pixmap);