[Lmuse-cvs-traffic] muse/muse/mixer rack.cpp,1.7,1.7.2.1 rack.h,1.5,1.5.2.1

[Robert J. <spa...@us...>]

Update of /cvsroot/lmuse/muse/muse/mixer
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv22413/muse/mixer

Modified Files:
      Tag: REL07
	rack.cpp rack.h 
Log Message:
drag&drop support for effect rack

Index: rack.h
===================================================================
RCS file: /cvsroot/lmuse/muse/muse/mixer/rack.h,v
retrieving revision 1.5
retrieving revision 1.5.2.1
diff -C2 -d -r1.5 -r1.5.2.1
*** rack.h	17 Apr 2004 11:30:43 -0000	1.5
--- rack.h	13 Jul 2005 18:59:50 -0000	1.5.2.1
***************
*** 11,14 ****
--- 11,15 ----
  
  #include <qlistbox.h>
+ #include "xml.h"
  
  class AudioTrack;
***************
*** 23,26 ****
--- 24,31 ----
  
        virtual QSize minimumSizeHint() const;
+       
+       void startDrag(int idx);
+       void initPlugin(Xml xml, int idx);
+       QPoint dragPos;
  
     private slots:
***************
*** 29,32 ****
--- 34,45 ----
        void songChanged(int);
  
+    protected:
+       void dropEvent(QDropEvent *event);
+       void dragEnterEvent(QDragEnterEvent *event);
+       void contentsDropEvent(QDropEvent *event);
+       void contentsDragEnterEvent(QDragEnterEvent *event);
+       void contentsMousePressEvent(QMouseEvent *event);
+       void contentsMouseMoveEvent(QMouseEvent *event);
+    
     public:
        EffectRack(QWidget*, AudioTrack* t);

Index: rack.cpp
===================================================================
RCS file: /cvsroot/lmuse/muse/muse/mixer/rack.cpp,v
retrieving revision 1.7
retrieving revision 1.7.2.1
diff -C2 -d -r1.7 -r1.7.2.1
*** rack.cpp	17 Apr 2004 11:30:43 -0000	1.7
--- rack.cpp	13 Jul 2005 18:59:50 -0000	1.7.2.1
***************
*** 7,15 ****
--- 7,21 ----
  //=========================================================
  
+ #include <qapplication.h>
  #include <qtooltip.h>
  #include <qpalette.h>
  #include <qpainter.h>
  #include <qpopupmenu.h>
+ #include <qdragobject.h>
+ #include <qmessagebox.h>
+ #include <qurl.h>
+ #include <errno.h>
  
+ #include "xml.h"
  #include "rack.h"
  #include "song.h"
***************
*** 18,21 ****
--- 24,28 ----
  #include "gconfig.h"
  #include "plugin.h"
+ #include "filedialog.h"
  
  //---------------------------------------------------------
***************
*** 84,87 ****
--- 91,95 ----
        setVScrollBarMode(AlwaysOff);
        setSelectionMode(Single);
+       setMaximumHeight(18 * PipelineDepth);
        for (int i = 0; i < PipelineDepth; ++i)
              new RackSlot(this, track, i);
***************
*** 92,95 ****
--- 100,104 ----
        connect(song, SIGNAL(songChanged(int)), SLOT(songChanged(int)));
        QToolTip::add(this, tr("effect rack"));
+       setAcceptDrops(true);
        }
  
***************
*** 238,239 ****
--- 247,414 ----
        }
  
+ void EffectRack::startDrag(int idx)
+       {
+       //printf("startDrag\n");
+       
+       FILE* tmp = tmpfile();
+       if (tmp == 0) {
+             fprintf(stderr, "ParCanvas::copy() fopen failed: %s\n",
+                strerror(errno));
+             return;
+             }
+       Xml xml(tmp);
+       Pipeline* pipe = track->efxPipe();
+       if (pipe) {
+             if ((*pipe)[idx] != NULL) {
+                 //printf("writeConf\n");
+                 xml.header();
+                 xml.tag(0, "muse version=\"1.0\"");
+                 (*pipe)[idx]->writeConfiguration(1, xml);
+                 xml.tag(0, "/muse");
+                 }
+             else {
+                 //printf("no plugin!\n");
+                 return;
+                 }
+             }
+       else {
+           //printf("no pipe!\n");
+           return;
+           }
+       
+       QString xmlconf;
+       xml.dump(xmlconf);
+       QTextDrag *drag = new QTextDrag(xmlconf, this);
+       drag->setSubtype("x-muse-plugin");
+       drag->drag();
+       }
+ 
+ void EffectRack::contentsDropEvent(QDropEvent *event)
+       {
+       //printf("contentsDropEvent\n");
+       }
+ 
+ void EffectRack::dropEvent(QDropEvent *event)
+       {
+       QString text;
+       QListBoxItem *i = itemAt( contentsToViewport(event->pos()) );
+       int idx = index(i);
+       
+       Pipeline* pipe = track->efxPipe();
+       if (pipe) {
+             if ((*pipe)[idx] != NULL) {
+                 if(!QMessageBox::question(this, tr("Replace effect"),tr("Do you really want to replace the effect %1?").arg(pipe->name(idx)),
+                       tr("&Yes"), tr("&No"),
+                       QString::null, 0, 1 ))
+                       {
+                       audio->msgAddPlugin(track, idx, 0);
+                       song->update(SC_RACK);
+                       }
+                 else {
+                       return;
+                       }
+                 }
+             if(QTextDrag::decode(event, text))
+                 {
+                 text = text.stripWhiteSpace();
+                 if (text.endsWith(".pre", false))
+                     {
+                     QUrl url(text);
+                     QString newPath = url.path();
+       
+                     bool popenFlag = false;
+                     FILE* fp = fileOpen(this, newPath, ".pre", "r", popenFlag, false, false);
+               
+                     if (fp) {
+                         Xml xml(fp);
+                         initPlugin(xml, idx);
+                         }
+                     }
+                 else if (event->provides("text/x-muse-plugin"))
+                       {
+                         //printf("yes!!!!\n");
+                         QString outxml;
+                         QTextDrag::decode(event, outxml);
+                         Xml xml(outxml);
+                         initPlugin(xml, idx);
+                       }
+                 }
+            }
+       }
+ 
+ void EffectRack::dragEnterEvent(QDragEnterEvent *event)
+       {
+       //printf("event accept=%d\n", QTextDrag::canDecode(event));
+       event->accept(QTextDrag::canDecode(event));
+       }
+ 
+ 
+ void EffectRack::contentsDragEnterEvent(QDragEnterEvent *event)
+       {
+       //printf("contentsDragEnterEvent\n");
+       //event->accept(event->provides("text/x-muse-plugin"));
+       }
+ 
+ void EffectRack::contentsMousePressEvent(QMouseEvent *event)
+       {
+       //printf("contentsMousePressEvent\n");
+       if(event->state() & LeftButton)
+           dragPos = event->pos();
+       QListBox::contentsMousePressEvent(event);  
+       }
+ 
+ void EffectRack::contentsMouseMoveEvent(QMouseEvent *event)
+       {
+       //printf("contentsMouseMoveEvent\n");
+       if (event->state() & LeftButton) {
+             int distance = (event->pos() - dragPos).manhattanLength();
+             if (distance > QApplication::startDragDistance()) {
+                   QListBoxItem *i = itemAt( contentsToViewport(event->pos()) );
+                   int idx = index(i);
+                   startDrag(idx);
+                   }
+             }
+       QListBox::contentsMouseMoveEvent(event);  
+       }
+ 
+ 
+ void EffectRack::initPlugin(Xml xml, int idx)
+       {      
+       for (;;) {
+             Xml::Token token = xml.parse();
+             QString tag = xml.s1();
+             switch (token) {
+                   case Xml::Error:
+                   case Xml::End:
+                         return;
+                   case Xml::TagStart:
+                         if (tag == "plugin") {
+                               //printf("got a plugin!\n");
+                               PluginI* plugi = new PluginI();
+                               if (plugi->readConfiguration(xml, false)) {
+                                   printf("cannot intantiate plugin\n");
+                                   delete plugi;
+                                   }
+                               else {
+                                   //printf("instantiated!\n");
+                                   audio->msgAddPlugin(track, idx, plugi);
+                                   song->update(SC_RACK);
+                                   return;
+                                   }
+                               }
+                         else if (tag =="muse")
+                               break;
+                         else
+                               xml.unknown("EffectRack");
+                         break;
+                   case Xml::Attribut:
+                         break;
+                   case Xml::TagEnd:
+                         if (tag == "muse")
+                               return;
+                   default:
+                         break;
+                   }
+             }
+       }                        
+