cut/copy/paste in wave editor

4 files changed, 99 insertions, 2 deletions

diff --git a/muse2/muse/waveedit/waveedit.cpp b/muse2/muse/waveedit/waveedit.cpp
index a6251503..89e7fb78 100644
--- a/muse2/muse/waveedit/waveedit.cpp
+++ b/muse2/muse/waveedit/waveedit.cpp
@@ -100,6 +100,19 @@ WaveEdit::WaveEdit(PartList* pl)
       
       menuFunctions->addSeparator();
 
+      copyAction = menuEdit->addAction(tr("&Copy"));
+      mapper->setMapping(copyAction, CMD_EDIT_COPY);
+      connect(copyAction, SIGNAL(triggered()), mapper, SLOT(map()));
+
+      cutAction = menuEdit->addAction(tr("C&ut"));
+      mapper->setMapping(cutAction, CMD_EDIT_CUT);
+      connect(cutAction, SIGNAL(triggered()), mapper, SLOT(map()));
+
+      pasteAction = menuEdit->addAction(tr("&Paste"));
+      mapper->setMapping(pasteAction, CMD_EDIT_PASTE);
+      connect(pasteAction, SIGNAL(triggered()), mapper, SLOT(map()));
+
+
       act = menuEdit->addAction(tr("Edit in E&xternal Editor"));
       mapper->setMapping(act, CMD_EDIT_EXTERNAL);
       connect(act, SIGNAL(triggered()), mapper, SLOT(map()));
@@ -226,6 +239,9 @@ WaveEdit::WaveEdit(PartList* pl)
 
       connect(hscroll, SIGNAL(scaleChanged(int)),  SLOT(updateHScrollRange()));
       connect(song, SIGNAL(songChanged(int)), SLOT(songChanged1(int)));
+
+
+      initShortcuts();
       
       updateHScrollRange();
       configChanged();
@@ -237,6 +253,15 @@ WaveEdit::WaveEdit(PartList* pl)
       }
       }
 
+void WaveEdit::initShortcuts()
+      {
+      cutAction->setShortcut(shortcuts[SHRT_CUT].key);
+      copyAction->setShortcut(shortcuts[SHRT_COPY].key);
+      pasteAction->setShortcut(shortcuts[SHRT_PASTE].key);
+      selectAllAction->setShortcut(shortcuts[SHRT_SELECT_ALL].key);
+      selectNoneAction->setShortcut(shortcuts[SHRT_SELECT_NONE].key);
+      }
+
 //---------------------------------------------------------
 //   configChanged
 //---------------------------------------------------------
diff --git a/muse2/muse/waveedit/waveedit.h b/muse2/muse/waveedit/waveedit.h
index 79102410..67230897 100644
--- a/muse2/muse/waveedit/waveedit.h
+++ b/muse2/muse/waveedit/waveedit.h
@@ -40,6 +40,9 @@ class WaveEdit : public MidiEditor {
       PosLabel* pos2;
       QAction* selectAllAction;
       QAction* selectNoneAction;
+      QAction* cutAction;
+      QAction* copyAction;
+      QAction* pasteAction;
       
       static int _widthInit, _heightInit;
 
@@ -50,6 +53,8 @@ class WaveEdit : public MidiEditor {
 
       QMenu* menuFunctions, *select, *menuGain;
 
+      void initShortcuts();
+
    private slots:
       void cmd(int);
       void setTime(unsigned t);
@@ -75,6 +80,7 @@ class WaveEdit : public MidiEditor {
 
       enum { CMD_MUTE=0, CMD_NORMALIZE, CMD_FADE_IN, CMD_FADE_OUT, CMD_REVERSE,
              CMD_GAIN_FREE, CMD_GAIN_200, CMD_GAIN_150, CMD_GAIN_75, CMD_GAIN_50, CMD_GAIN_25,
+             CMD_EDIT_COPY, CMD_EDIT_CUT, CMD_EDIT_PASTE,
              CMD_EDIT_EXTERNAL,
              CMD_SELECT_ALL, CMD_SELECT_NONE };
       };
diff --git a/muse2/muse/waveedit/waveview.cpp b/muse2/muse/waveedit/waveview.cpp
index 668d8bea..fab731ba 100644
--- a/muse2/muse/waveedit/waveview.cpp
+++ b/muse2/muse/waveedit/waveview.cpp
@@ -14,6 +14,7 @@
 #include <QFileInfo>
 #include <QMessageBox>
 #include <QMouseEvent>
+#include <QFile>
 
 #include "editgain.h"
 #include "globals.h"
@@ -499,6 +500,15 @@ void WaveView::cmd(int n)
                   selectionStart = selectionStop = 0;
                   redraw();
                   break;
+            case WaveEdit::CMD_EDIT_COPY:
+                  modifyoperation = COPY;
+                  break;
+            case WaveEdit::CMD_EDIT_CUT:
+                  modifyoperation = CUT;
+                  break;
+            case WaveEdit::CMD_EDIT_PASTE:
+                  modifyoperation = PASTE;
+                  break;
 
             case WaveEdit::CMD_MUTE:
                   modifyoperation = MUTE;
@@ -561,7 +571,7 @@ void WaveView::cmd(int n)
             }
 
       if (modifyoperation != -1) {
-            if (selectionStart == selectionStop) {
+            if (selectionStart == selectionStop && modifyoperation!=PASTE) {
                   printf("No selection. Ignoring\n"); //@!TODO: Disable menu options when no selection
                   QMessageBox::information(this, 
                      QString("MusE"),
@@ -643,6 +653,18 @@ void WaveView::modifySelection(int operation, unsigned startpos, unsigned stoppo
       {
          song->startUndo();
 
+         if (operation == PASTE) {
+           // we need to redefine startpos and stoppos
+           if (copiedPart =="")
+             return;
+           SndFile pasteFile(copiedPart);
+           pasteFile.openRead();
+           startpos = pos[0];
+           stoppos = startpos+ pasteFile.samples(); // possibly this is wrong if there are tempo changes
+           pasteFile.close();
+           pos[0]=stoppos;
+         }
+
          WaveSelectionList selection = getSelection(startpos, stoppos);
          for (iWaveSelection i = selection.begin(); i != selection.end(); i++) {
                WaveEventSelection w = *i;
@@ -706,6 +728,20 @@ void WaveView::modifySelection(int operation, unsigned startpos, unsigned stoppo
                      case GAIN:
                            applyGain(file_channels, tmpdata, tmpdatalen, paramA);
                            break;
+                     case CUT:
+                           copySelection(file_channels, tmpdata, tmpdatalen, true, file.format(), file.samplerate());
+                           break;
+                     case COPY:
+                           copySelection(file_channels, tmpdata, tmpdatalen, false, file.format(), file.samplerate());
+                           break;
+                     case PASTE:
+                           {
+                           SndFile pasteFile(copiedPart);
+                           pasteFile.openRead();
+                           pasteFile.seek(tmpdataoffset, 0);
+                           pasteFile.readWithHeap(file_channels, tmpdata, tmpdatalen);
+                           }
+                           break;
 
                      case EDIT_EXTERNAL:
                            editExternal(file.format(), file.samplerate(), file_channels, tmpdata, tmpdatalen);
@@ -737,6 +773,34 @@ void WaveView::modifySelection(int operation, unsigned startpos, unsigned stoppo
       }
 
 //---------------------------------------------------------
+//   copySelection
+//---------------------------------------------------------
+void WaveView::copySelection(unsigned file_channels, float** tmpdata, unsigned length, bool blankData, unsigned format, unsigned sampleRate)
+{
+      if (copiedPart!="") {
+        QFile::remove(copiedPart);
+      }
+      if (!getUniqueTmpfileName(copiedPart)) {
+            return;
+            }
+
+      SndFile tmpFile(copiedPart);
+      tmpFile.setFormat(format, file_channels, sampleRate);
+      tmpFile.openWrite();
+      tmpFile.write(file_channels, tmpdata, length);
+      tmpFile.close();
+
+      if (blankData) {
+        // Set everything to 0!
+        for (unsigned i=0; i<file_channels; i++) {
+              for (unsigned j=0; j<length; j++) {
+                    tmpdata[i][j] = 0;
+                    }
+              }
+        }
+}
+
+//---------------------------------------------------------
 //   muteSelection
 //---------------------------------------------------------
 void WaveView::muteSelection(unsigned channels, float** data, unsigned length)
diff --git a/muse2/muse/waveedit/waveview.h b/muse2/muse/waveedit/waveview.h
index d1f247b3..53b0c76f 100644
--- a/muse2/muse/waveedit/waveview.h
+++ b/muse2/muse/waveedit/waveview.h
@@ -42,10 +42,11 @@ class WaveView : public View {
       int endSample;
 
       WavePart* curPart;
+      QString copiedPart;
       int curPartId;
 
       enum { NORMAL, DRAG } mode;
-      enum { MUTE = 0, NORMALIZE, FADE_IN, FADE_OUT, REVERSE, GAIN, EDIT_EXTERNAL }; //!< Modify operations
+      enum { MUTE = 0, NORMALIZE, FADE_IN, FADE_OUT, REVERSE, GAIN, EDIT_EXTERNAL, CUT, COPY, PASTE }; //!< Modify operations
 
       unsigned selectionStart, selectionStop, dragstartx;
 
@@ -69,6 +70,7 @@ class WaveView : public View {
       void fadeOutSelection(unsigned channels, float** data, unsigned length); //!< Linear fade out of selection
       void reverseSelection(unsigned channels, float** data, unsigned length); //!< Reverse selection
       void applyGain(unsigned channels, float** data, unsigned length, double gain); //!< Apply gain to selection
+      void copySelection(unsigned file_channels, float** tmpdata, unsigned tmpdatalen, bool blankData, unsigned format, unsigned sampleRate);
 
       void editExternal(unsigned file_format, unsigned file_samplerate, unsigned channels, float** data, unsigned length);