diff EventBoxUnit.cpp @ 0:a6a46af64546

first upload

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/EventBoxUnit.cpp	Wed Aug 10 14:55:38 2011 +0100
@@ -0,0 +1,301 @@
+/*
+    Harmonic Visualiser
+
+    An audio file viewer and editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    This file copyright 2011 Wen Xue.
+
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version. 
+*/
+//---------------------------------------------------------------------------
+
+#include <vcl.h>
+#pragma hdrstop
+
+#include "EventBoxUnit.h"
+#include "WaveView.h"
+#include "Unit1.h"
+#include "EditorPanelUnit.h"
+#include <Math.hpp>
+#include <math.h>
+//---------------------------------------------------------------------------
+#pragma package(smart_init)
+#pragma resource "*.dfm"
+TEventBox *EventBox;
+//---------------------------------------------------------------------------
+__fastcall TEventBox::TEventBox(TComponent* Owner)
+  : TForm(Owner)
+{
+  HSCapacity=100;
+  HSCount=0;
+  HS=(THS**)malloc(sizeof(THS*)*HSCapacity);
+  memset(HS, 0, sizeof(THS*)*HSCapacity);
+}
+
+__fastcall TEventBox::~TEventBox()
+{
+  Clear();
+  free(HS);
+}
+
+void __fastcall TEventBox::Clear()
+{
+  ListBox1->Clear();
+  for(int i=0; i<HSCount; i++) delete HS[i];
+  HSCount=0;
+}
+//---------------------------------------------------------------------------
+THS* __fastcall TEventBox::NewHS(int M, int Fr)
+{
+  if (HSCount>=HSCapacity)
+  {
+    HSCapacity+=100;
+    HS=(THS**)realloc(HS, sizeof(THS*)*HSCapacity);
+    memset(&HS[HSCount], 0, sizeof(THS*)*(HSCapacity-HSCount));
+  }
+  THS* newhs;
+  if (M>0 && Fr>0) newhs=new THS(M, Fr);
+  else newhs=new THS;
+  HS[HSCount++]=newhs;
+  if (ListBox1->Enabled)
+  {
+    ListBox1->Items->Add("");
+    ListBox1->ItemIndex=ListBox1->Count-1;
+  }
+  return newhs;
+}
+
+//---------------------------------------------------------------------------
+void __fastcall TEventBox::ListBox1MouseDown(TObject *Sender,
+      TMouseButton Button, TShiftState Shift, int X, int Y)
+{
+  int c=ListBox1->ItemAtPos(TPoint(X, Y), true);
+  SetItemIndex(c);
+}
+//---------------------------------------------------------------------------
+  void ClearObjectByShortTag0(TWaveView* WV, int tag0);
+void __fastcall TEventBox::SetItemIndex(int index)
+{
+  ListBox1->ItemIndex=index;
+  ClearObjectByShortTag0(Form1->WaveView1, 1);
+  if (index>=0)
+  {
+    Form1->HS=HS[index];
+    Form1->AddHSObject(Form1->HS);
+  }
+  else
+  {
+    Form1->HS=0;
+  }
+
+  bool alreadyinvalidated=false;
+  if (CheckBox1->Checked && Form1->HS)
+  {
+    TWaveView* WaveView1=Form1->WaveView1;
+    int eventst=Form1->HS->Partials[0][0].t, eventen=Form1->HS->Partials[0][Form1->HS->Fr-1].t,
+        wvlen=WaveView1->EndPos-WaveView1->StartPos;
+    if (eventst>WaveView1->EndPos || eventen<WaveView1->StartPos)
+    {
+      int newst=(eventst+eventen)/2-wvlen/2, newen=newst+wvlen;
+      if (newst<0) newst=0, newen=wvlen;
+      else if (newen>WaveView1->Length) newen=WaveView1->Length, newst=WaveView1->Length-wvlen;
+      WaveView1->SetStartAndEndPos(newst, newen);
+      alreadyinvalidated=true;
+    }
+  }
+  if (!alreadyinvalidated) Form1->WaveView1->Invalidate();
+}
+//---------------------------------------------------------------------------
+void __fastcall TEventBox::Save(TObject *Sender)
+{
+  Sort();
+  AnsiString FileName=ChangeFileExt(Form1->WaveAudio1->FileName, ".evt");
+  if (FileExists(FileName))
+  {
+    AnsiString BakName=ChangeFileExt(FileName, ".evt.bak."+Now().FormatString("yymmddhhnnss"));
+    RenameFile(FileName, BakName);
+  }
+  SaveToFile(FileName);
+}
+//---------------------------------------------------------------------------
+void __fastcall TEventBox::Load(TObject *Sender)
+{
+  LoadFromFile(ChangeFileExt(Form1->WaveAudio1->FileName, ".evt"));
+}
+//---------------------------------------------------------------------------
+void __fastcall TEventBox::Sort()
+{
+  for (int i=0; i<HSCount-1; i++)
+  {
+    int indmint=i;
+    for (int j=i+1; j<HSCount; j++) if (HS[j]->Partials[0][0].t<HS[indmint]->Partials[0][0].t) indmint=j;
+
+    if (indmint!=i)
+    {
+      THS* tmphs=HS[i];
+      HS[i]=HS[indmint];
+      HS[indmint]=tmphs;
+      AnsiString tmpstr=ListBox1->Items->Strings[i];
+      ListBox1->Items->Strings[i]=ListBox1->Items->Strings[indmint];
+      ListBox1->Items->Strings[indmint]=tmpstr;
+    }
+  }
+}
+
+void __fastcall TEventBox::SaveToFile(AnsiString FileName)
+{
+  TFileStream* File=new TFileStream(FileName, fmCreate);
+  File->Write(&HSCount, sizeof(int));
+  for (int i=0; i<HSCount; i++) HS[i]->WriteToStream(File);
+  delete File;
+}
+
+void __fastcall TEventBox::LoadFromFile(AnsiString FileName)
+{
+  Clear(); SetItemIndex(-1);
+  if (!FileExists(FileName)) return;
+  TFileStream* File=new TFileStream(FileName, fmOpenRead);
+  __int32 hsc; File->Read(&hsc, sizeof(__int32));
+  bool counted=memcmp(&hsc, "EVT", 4);
+  if (!counted) File->Seek(-4, soFromCurrent);
+  ListBox1->Enabled=false;
+
+  int i=0;
+  while (!counted || i<hsc)
+  {
+    THS* hs=NewHS(0, 0);
+    if (!hs->ReadFromStream(File))
+    {
+      if (!counted)
+      {
+        delete HS[i];
+        HSCount--;
+        break;
+      }
+      else
+      { //load old format file
+        char c[5]; c[4]=0;
+        int Channel, M, Fr;
+        File->Read(c, 4);
+        File->Read(&Channel, sizeof(int));
+        File->Read(&M, sizeof(int));
+        File->Read(&Fr, sizeof(int));
+        hs->Resize(M, Fr);
+        hs->Channel=Channel;
+        File->Read(hs->Partials[0], sizeof(atom)*M*Fr);
+        File->Read(c, 4);
+        if (strcmp(c, "EVT ")) hs->isconstf=*(int*)c;
+        else File->Seek(-4, soFromCurrent);
+      }
+    }
+    i++;
+  }
+  delete File;
+  TStringList* List=new TStringList;
+
+  for (int i=0; i<HSCount; i++)
+  {
+    List->Add(AnsiString(i)+" "+
+    (HS[i]->Channel==0?"left: ":"right: ")
+      +AnsiString().sprintf("%.2fs, ", HS[i]->Partials[0][0].t*1.0/Form1->WaveView1->SamplesPerSec)
+      +SemitoneToPitch(Log2(HS[i]->Partials[0][0].f*Form1->WaveView1->SamplesPerSec/C4)*12)
+    );
+  }
+    ListBox1->Items=List;
+    delete List;
+  ListBox1->Enabled=true;
+  SetItemIndex(-1);
+}
+//---------------------------------------------------------------------------
+
+
+void __fastcall TEventBox::ListBox1KeyUp(TObject *Sender, WORD &Key,
+      TShiftState Shift)
+{
+  int LII=ListBox1->ItemIndex;
+  if (Key==VK_DELETE)
+  {
+    if (LII>=0)
+    {
+      delete HS[LII];
+      HSCount-=1;
+      memcpy(&HS[LII], &HS[LII+1], sizeof(THS*)*(HSCount-LII));
+      ListBox1->Items->Delete(LII);
+      ClearObjectByShortTag0(Form1->WaveView1, 1);
+      Form1->HS=0;
+      Form1->WaveView1->Invalidate();
+    }
+  }
+  else if (Key=='L') Load(NULL);
+  else if (Key=='S') Save(NULL);
+  else
+  {
+  }
+  LII=ListBox1->ItemIndex;
+  if (LII>=0 && Form1->HS!=HS[LII]) SetItemIndex(LII);
+  else if (LII<0 && Form1->HS!=0) SetItemIndex(LII);
+}
+//---------------------------------------------------------------------------
+
+
+void __fastcall TEventBox::Vibratowizard1Click(TObject *Sender)
+{
+  if (Form1->Vibratowizard1->Enabled) Form1->Vibratowizard1Click(Sender);
+}
+//---------------------------------------------------------------------------
+
+void __fastcall TEventBox::ListBox1DblClick(TObject *Sender)
+{
+	if (Form1->Vibratowizard1->Enabled)
+	{
+		if (GetKeyState(VK_SHIFT)>=0)
+			Form1->Sourcefilter1Click(Vibratowizard1);
+		else
+			Form1->Vibratowizard1Click(Vibratowizard1);
+	}
+}
+//---------------------------------------------------------------------------
+
+//---------------------------------------------------------------------------
+
+void __fastcall TEventBox::FormClick(TObject *Sender)
+{
+  SetItemIndex(-1);  
+}
+//---------------------------------------------------------------------------
+
+
+void __fastcall TEventBox::Cut1Click(TObject *Sender)
+{
+  if (Form1->Cut1->Enabled) Form1->Cut1Click(Sender);
+}
+//---------------------------------------------------------------------------
+
+
+void __fastcall TEventBox::PopupMenu1Popup(TObject *Sender)
+{
+  bool hasselection=ListBox1->ItemIndex>=0;
+  Vibratowizard1->Visible=hasselection;
+  Sourcefilter1->Visible=hasselection;
+  Extract1->Visible=hasselection;
+  Cut1->Visible=hasselection;;
+}
+//---------------------------------------------------------------------------
+
+void __fastcall TEventBox::Extract1Click(TObject *Sender)
+{
+  if (Form1->Extract1->Enabled) Form1->Extract1Click(Sender);
+}
+//---------------------------------------------------------------------------
+
+
+void __fastcall TEventBox::Sourcefilter1Click(TObject *Sender)
+{
+	if (Form1->Vibratowizard1->Enabled)
+  	Form1->Sourcefilter1Click(Vibratowizard1);
+}
+//---------------------------------------------------------------------------
+