Take screenshot.

Signed-off-by: Andrea Odetti <mariofutire@gmail.com>

source/frontends/qapple/emulator.cpp

@@ -20,6 +20,11 @@ void Emulator::repaintVideo()
     video->repaint();
 }
 
+const QPixmap & Emulator::getScreen() const
+{
+    return video->getScreen();
+}
+
 void Emulator::setVideoSize(QMdiSubWindow * window, const QSize & size)
 {
     window->showNormal();

source/frontends/qapple/emulator.h

@@ -15,6 +15,8 @@ public:
     void updateVideo();
     void repaintVideo();
 
+    const QPixmap & getScreen() const;
+
     void setZoom(QMdiSubWindow * window, const int x);
     void set43AspectRatio(QMdiSubWindow * window);
 

source/frontends/qapple/preferences.cpp

@@ -179,6 +179,7 @@ void Preferences::setData(const Data & data)
     joystick->setCurrentText(data.joystick);
 
     save_state->setText(data.saveState);
+    screenshot->setText(data.screenshotTemplate);
 }
 
 Preferences::Data Preferences::getData() const
@@ -205,6 +206,7 @@ Preferences::Data Preferences::getData() const
     }
 
     data.saveState = save_state->text();
+    data.screenshotTemplate = screenshot->text();
 
     return data;
 }

source/frontends/qapple/preferences.h

@@ -26,6 +26,7 @@ public:
         std::vector<QString> hds;
 
         QString saveState;
+        QString screenshotTemplate;
     };
 
     explicit Preferences(QWidget *parent);

source/frontends/qapple/preferences.ui

@@ -6,15 +6,15 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>556</width>
-    <height>403</height>
+    <width>648</width>
+    <height>315</height>
    </rect>
   </property>
   <property name="windowTitle">
    <string>Options</string>
   </property>
   <layout class="QGridLayout" name="gridLayout">
-   <item row="2" column="0">
+   <item row="1" column="0">
     <widget class="QDialogButtonBox" name="buttonBox">
      <property name="orientation">
       <enum>Qt::Horizontal</enum>
@@ -280,8 +280,8 @@
       <attribute name="title">
        <string>Advanced</string>
       </attribute>
-      <layout class="QGridLayout" name="gridLayout_5">
-       <item row="0" column="2">
+      <layout class="QVBoxLayout" name="verticalLayout">
+       <item>
         <widget class="QGroupBox" name="groupBox">
          <property name="title">
           <string>Save State</string>
@@ -307,6 +307,25 @@
          </layout>
         </widget>
        </item>
+       <item>
+        <widget class="QGroupBox" name="groupBox_3">
+         <property name="title">
+          <string>Screenshot</string>
+         </property>
+         <layout class="QGridLayout" name="gridLayout_5">
+          <item row="0" column="0">
+           <widget class="QLabel" name="label_11">
+            <property name="text">
+             <string>Template</string>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="1">
+           <widget class="QLineEdit" name="screenshot"/>
+          </item>
+         </layout>
+        </widget>
+       </item>
       </layout>
      </widget>
      <widget class="QWidget" name="registry">

source/frontends/qapple/qapple.cpp

@@ -134,6 +134,17 @@ namespace
             return 2;
         }
     }
+
+    QString getScreenshotTemplate()
+    {
+        const QString filenameTemplate = QSettings().value("QApple/Screenshot Template", "/tmp/qapple_%1.png").toString();
+        return filenameTemplate;
+    }
+
+    void setScreenshotTemplate(const QString & filenameTemplate)
+    {
+        QSettings().setValue("QApple/Screenshot Template", filenameTemplate);
+    }
 }
 
 void FrameDrawDiskLEDS(HDC)
@@ -369,6 +380,7 @@ void QApple::on_actionOptions_triggered()
         currentOptions.saveState = QString::fromUtf8(saveState);;
     }
 
+    currentOptions.screenshotTemplate = getScreenshotTemplate();
 
     QSettings settings; // the function will "modify" it
     myPreferences.setup(currentOptions, settings);
@@ -440,6 +452,10 @@ void QApple::on_actionOptions_triggered()
             RegSaveString(TEXT(REG_CONFIG), REGVALUE_SAVESTATE_FILENAME, 1, name.c_str());
         }
 
+        if (currentOptions.screenshotTemplate != newOptions.screenshotTemplate)
+        {
+            setScreenshotTemplate(newOptions.screenshotTemplate);
+        }
     }
 
 }
@@ -466,3 +482,40 @@ void QApple::on_actionAbout_triggered()
 {
     QMessageBox::about(this, QApplication::applicationName(), "Apple ][ emulator\n\nBased on AppleWin\n");
 }
+
+QString getImageFilename()
+{
+    QString filenameTemplate = getScreenshotTemplate();
+    static size_t counter = 0;
+
+    const size_t maximum = 10000;
+    while (counter < maximum)
+    {
+        const QString filename = filenameTemplate.arg(counter, 5, 10, QChar('0'));
+        if (!QFile(filename).exists())
+        {
+            return filename;
+        }
+        ++counter;
+    }
+
+    return QString();
+}
+
+void QApple::on_actionScreenshot_triggered()
+{
+    const QString filename = getImageFilename();
+    if (filename.isEmpty())
+    {
+        QMessageBox::warning(this, "Screenshot", "Cannot determine the screenshot filename.");
+    }
+    else
+    {
+        const bool ok = myEmulator->getScreen().save(filename);
+        if (!ok)
+        {
+            const QString message = QString::fromUtf8("Cannot save screenshot to %1").arg(filename);
+            QMessageBox::warning(this, "Screenshot", message);
+        }
+    }
+}

source/frontends/qapple/qapple.h

@@ -53,6 +53,8 @@ private slots:
 
     void on_actionAbout_triggered();
 
+    void on_actionScreenshot_triggered();
+
 private:
 
     void stopTimer();

source/frontends/qapple/qapple.ui

@@ -48,6 +48,7 @@
     <property name="title">
      <string>&amp;Video</string>
     </property>
+    <addaction name="actionScreenshot"/>
     <addaction name="actionBenchmark"/>
    </widget>
    <widget class="QMenu" name="menuView">
@@ -78,6 +79,9 @@
    <addaction name="menuView"/>
   </widget>
   <widget class="QToolBar" name="mainToolBar">
+   <property name="windowTitle">
+    <string>size</string>
+   </property>
    <attribute name="toolBarArea">
     <enum>TopToolBarArea</enum>
    </attribute>
@@ -91,7 +95,7 @@
   <widget class="QStatusBar" name="statusBar"/>
   <widget class="QToolBar" name="toolBar">
    <property name="windowTitle">
-    <string>toolBar</string>
+    <string>controls</string>
    </property>
    <attribute name="toolBarArea">
     <enum>TopToolBarArea</enum>
@@ -163,12 +167,17 @@
   </action>
   <action name="actionAbout_Qt">
    <property name="text">
-    <string>About Qt...</string>
+    <string>&amp;About Qt...</string>
    </property>
   </action>
   <action name="actionAbout">
    <property name="text">
-    <string>About...</string>
+    <string>A&amp;bout...</string>
+   </property>
+  </action>
+  <action name="actionScreenshot">
+   <property name="text">
+    <string>Screenshot</string>
    </property>
   </action>
  </widget>

source/frontends/qapple/video.cpp

@@ -205,6 +205,9 @@ Video::Video(QWidget *parent) : VIDEO_BASECLASS(parent)
 {
     myGraphicsCache.reset(new GraphicsCache());
     setMouseTracking(true);
+
+    const QSize standard(40 * 7 * 2, 24 * 8 * 2);
+    myOffscreen = QPixmap(standard);
 }
 
 void Video::paintEvent(QPaintEvent *)
@@ -214,8 +217,6 @@ void Video::paintEvent(QPaintEvent *)
     const double sx = double(actual.width()) / double(min.width());
     const double sy = double(actual.height()) / double(min.height());
 
-    QPixmap offscreen(min);
-
     /* How to make this faster
      * 1) Do not call Video::paint() with a scale != 1:1
      * 2) For this reason we need to draw elsewhere
@@ -230,7 +231,7 @@ void Video::paintEvent(QPaintEvent *)
 
     // first draw the image offscreen 1:1
     {
-        QPainter painter(&offscreen);
+        QPainter painter(&myOffscreen);
         paint(painter);
     }
 
@@ -238,10 +239,15 @@ void Video::paintEvent(QPaintEvent *)
     {
         QPainter painter(this);
         painter.scale(sx, sy);
-        painter.drawPixmap(0, 0, offscreen);
+        painter.drawPixmap(0, 0, myOffscreen);
     }
 }
 
+const QPixmap & Video::getScreen() const
+{
+    return myOffscreen;
+}
+
 void Video::paint(QPainter & painter)
 {
     const int displaypage2 = (SW_PAGE2) == 0 ? 0 : 1;

source/frontends/qapple/video.h

@@ -15,6 +15,8 @@ class Video : public VIDEO_BASECLASS
 public:
     explicit Video(QWidget *parent = 0);
 
+    const QPixmap & getScreen() const;
+
 signals:
 
 public slots:
@@ -39,6 +41,7 @@ private:
     void paint(QPainter & painter);
 
     std::shared_ptr<const GraphicsCache> myGraphicsCache;
+    QPixmap myOffscreen;
 };
 
 #endif // VIDEO_H