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SF.net SVN: jazzplusplus: [326] trunk/jazz
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From: <pst...@us...> - 2008-03-17 06:22:17
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Revision: 326
http://jazzplusplus.svn.sourceforge.net/jazzplusplus/?rev=326&view=rev
Author: pstieber
Date: 2008-03-16 23:22:14 -0700 (Sun, 16 Mar 2008)
Log Message:
-----------
Added a knob to the build. This will be used in dialogs.
Modified Paths:
--------------
trunk/jazz/src/Makefile.am
trunk/jazz/vc8/JazzPlusPlus-VC8.vcproj
Added Paths:
-----------
trunk/jazz/src/Knob.cpp
trunk/jazz/src/Knob.h
Added: trunk/jazz/src/Knob.cpp
===================================================================
--- trunk/jazz/src/Knob.cpp (rev 0)
+++ trunk/jazz/src/Knob.cpp 2008-03-17 06:22:14 UTC (rev 326)
@@ -0,0 +1,314 @@
+//*****************************************************************************
+// The JAZZ++ Midi Sequencer
+//
+// Copyright (C) 2008 Peter J. Stieber
+//
+// 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.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//*****************************************************************************
+
+#include "WxWidgets.h"
+
+#include <wx/dcbuffer.h>
+
+#include "Knob.h"
+#include "Globals.h"
+
+#include <cmath>
+
+//*****************************************************************************
+// Description:
+// This is the knob class definition.
+//*****************************************************************************
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+BEGIN_EVENT_TABLE(JZKnob,wxControl)
+ EVT_SIZE(JZKnob::OnSize)
+ EVT_ERASE_BACKGROUND(JZKnob::OnEraseBackground)
+ EVT_PAINT(JZKnob::OnPaint)
+ EVT_LEFT_DOWN(JZKnob::OnMouse)
+ EVT_LEFT_UP(JZKnob::OnMouse)
+ EVT_MOTION(JZKnob::OnMouse)
+ EVT_MOUSEWHEEL(JZKnob::OnMouse)
+END_EVENT_TABLE()
+
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+JZKnob::JZKnob()
+ : wxControl()
+{
+}
+
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+JZKnob::JZKnob(
+ wxWindow* pParent,
+ wxWindowID Id,
+ int Value,
+ int MinValue,
+ int MaxValue,
+ unsigned int MinAngle,
+ unsigned int Range,
+ const wxPoint& Position,
+ const wxSize& Size,
+ long WindowStyle,
+ const wxValidator& Validator,
+ const wxString& Name)
+ : wxControl()
+{
+ Create(
+ pParent,
+ Id,
+ Value,
+ MinValue,
+ MaxValue,
+ MinAngle,
+ Range,
+ Position,
+ Size,
+ WindowStyle,
+ Validator,
+ Name);
+}
+
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+void JZKnob::Create(
+ wxWindow* pParent,
+ wxWindowID Id,
+ int Value,
+ int MinValue,
+ int MaxValue,
+ unsigned int MinAngle,
+ unsigned int Range,
+ const wxPoint& Position,
+ const wxSize& Size,
+ long WindowStyle,
+ const wxValidator& Validator,
+ const wxString& Name)
+{
+ wxControl::Create(
+ pParent,
+ Id,
+ Position,
+ Size,
+ WindowStyle | wxNO_BORDER,
+ Validator,
+ Name);
+
+ SetInitialSize(Size);
+
+ mMin = MinValue;
+ mMax = MaxValue;
+ Range %= 360;
+ MinAngle %= 360;
+ mMaxAngle = (MinAngle + 360 - Range) % 360;
+
+ mRange = Range;
+ SetValue(Value);
+}
+
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+void JZKnob::SetRange(int MinValue, int MaxValue)
+{
+ if (MinValue < MaxValue)
+ {
+ mMin = MinValue;
+ mMax = MaxValue;
+ SetValue(mSetting);
+ }
+}
+
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+int JZKnob::SetValue(int Value)
+{
+ if (Value < mMin)
+ {
+ Value = mMin;
+ }
+ if (Value > mMax)
+ {
+ Value = mMax;
+ }
+
+ if (Value != mSetting)
+ {
+ mSetting = Value;
+ Refresh(false);
+ Update();
+ }
+ return mSetting;
+}
+
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+void JZKnob::OnSize(wxSizeEvent& Event)
+{
+ int Width, Height;
+ GetClientSize(&Width, &Height);
+ if (Width > 0 && Height > 0)
+ {
+ mBuffer.Create(Width, Height);
+ }
+}
+
+//-----------------------------------------------------------------------------
+// Description:
+// This code always erasew when painting so we override this function to
+// avoid flicker.
+//-----------------------------------------------------------------------------
+void JZKnob::OnEraseBackground(wxEraseEvent& Event)
+{
+}
+
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+void JZKnob::OnPaint(wxPaintEvent& Event)
+{
+ wxSize Size = GetSize();
+
+ double Theta = gDegreesToRadians *
+ (mMaxAngle + (((double)mMax - mSetting) / (mMax - mMin)) * mRange);
+
+ double DeltaX = cos(Theta);
+
+ // Negate because of the upside down coordinates
+ double DeltaY = -sin(Theta);
+
+ wxPaintDC PaintDc(this);
+
+ wxBufferedDC Dc(&PaintDc, mBuffer);
+
+ Dc.SetBackground(wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE)));
+
+ Dc.Clear();
+
+ int XCenter, YCenter;
+ GetCenter(XCenter, YCenter);
+
+ int OuterRadius = static_cast<int>(
+ (((Size.x < Size.y) ? Size.x : Size.y) * .48) + 0.5);
+ int InnerRadius = static_cast<int>(OuterRadius * 0.6 + 0.5);
+
+ wxColour Color(120, 100, 100);
+ wxBrush Brush(Color, wxSOLID);
+ wxPen Pen(Color);
+ int KnobRadius = OuterRadius;
+ for (unsigned char Red = 120; KnobRadius > 0 && Red < 250; Red += 5)
+ {
+ Color.Set(Red, 100, 100);
+ Brush.SetColour(Color);
+ Pen.SetColour(Color);
+ Dc.SetBrush(Brush);
+ Dc.SetPen(Pen);
+ Dc.DrawCircle(XCenter, YCenter, KnobRadius);
+ --KnobRadius;
+ }
+
+ wxPen WhitePen(*wxWHITE, 3);
+ Dc.SetPen(WhitePen);
+ Dc.DrawLine(
+ XCenter + static_cast<int>(OuterRadius * DeltaX + 0.5),
+ YCenter + static_cast<int>(OuterRadius * DeltaY + 0.5),
+ XCenter + static_cast<int>(InnerRadius * DeltaX + 0.5),
+ YCenter + static_cast<int>(InnerRadius * DeltaY + 0.5));
+}
+
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+void JZKnob::OnMouse(wxMouseEvent& Event)
+{
+ wxEventType ScrollEvent = wxEVT_NULL;
+
+ if (Event.Moving())
+ {
+ Event.Skip();
+ return;
+ }
+
+ if (Event.GetWheelRotation() < 0)
+ {
+ SetValue(GetValue() - 1);
+ Event.Skip();
+ return;
+ }
+
+ if (Event.GetWheelRotation() > 0)
+ {
+ SetValue(GetValue() + 1);
+ Event.Skip();
+ return;
+ }
+
+ int XCenter, YCenter;
+ GetCenter(XCenter, YCenter);
+
+ double DeltaX = Event.m_x - XCenter;
+ double DeltaY = YCenter - Event.m_y;
+ if (DeltaX == 0.0 && DeltaY == 0.0)
+ {
+ return;
+ }
+
+ double Theta = atan2(DeltaY, DeltaX) * gRadiansToDegrees;
+ if (Theta < 0.0)
+ {
+ Theta += 360.0;
+ }
+
+ double DeltaTheta = Theta - mMaxAngle;
+ if (DeltaTheta < 0.0)
+ {
+ DeltaTheta += 360;
+ }
+ if (DeltaTheta > mRange)
+ {
+ return;
+ }
+ int NewValue = int(mMax - (DeltaTheta / mRange) * (mMax - mMin));
+
+ SetValue(NewValue);
+ if (Event.Dragging() || Event.ButtonUp())
+ {
+ if (Event.ButtonUp())
+ {
+ ScrollEvent = wxEVT_SCROLL_THUMBRELEASE;
+ }
+ else
+ {
+ ScrollEvent = wxEVT_SCROLL_THUMBTRACK;
+ }
+
+ wxScrollEvent ScrollEvent(ScrollEvent, m_windowId);
+ ScrollEvent.SetPosition(NewValue);
+ ScrollEvent.SetEventObject(this);
+ GetEventHandler()->ProcessEvent(ScrollEvent);
+
+ wxCommandEvent CommandEvent(wxEVT_COMMAND_SLIDER_UPDATED, m_windowId);
+ CommandEvent.SetInt(NewValue);
+ CommandEvent.SetEventObject(this);
+ GetEventHandler()->ProcessEvent(CommandEvent);
+ }
+}
+
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+void JZKnob::GetCenter(int& x, int& y) const
+{
+ wxSize Size = GetSize();
+ x = Size.x / 2;
+ y = Size.y / 2;
+}
Property changes on: trunk/jazz/src/Knob.cpp
___________________________________________________________________
Name: svn:eol-style
+ native
Added: trunk/jazz/src/Knob.h
===================================================================
--- trunk/jazz/src/Knob.h (rev 0)
+++ trunk/jazz/src/Knob.h 2008-03-17 06:22:14 UTC (rev 326)
@@ -0,0 +1,171 @@
+//*****************************************************************************
+// The JAZZ++ Midi Sequencer
+//
+// Copyright (C) 2008 Peter J. Stieber
+//
+// 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.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//*****************************************************************************
+
+#ifndef JZ_KNOB_H
+#define JZ_KNOB_H
+
+//*****************************************************************************
+// Description:
+// This is the knob class declaration. This is a custom control that looks
+// like a mixer knob.
+//*****************************************************************************
+class JZKnob : public wxControl
+{
+ public:
+
+ JZKnob();
+
+ JZKnob(
+ wxWindow* pParent,
+ wxWindowID Id,
+ int Value,
+ int MinValue,
+ int MaxValue,
+ unsigned int MinAngle = 240,
+ unsigned int Range = 300,
+ const wxPoint& Position = wxDefaultPosition,
+ const wxSize& Size = wxSize(40, 40),
+ long WindowStyle = wxNO_BORDER,
+ const wxValidator& Validator = wxDefaultValidator,
+ const wxString& Name = wxT("knob"));
+
+ void Create(
+ wxWindow* pParent,
+ wxWindowID Id,
+ int Value,
+ int MinValue,
+ int MaxValue,
+ unsigned int MinAngle = 240,
+ unsigned int Range = 300,
+ const wxPoint& Position = wxDefaultPosition,
+ const wxSize& Size = wxSize(40, 40),
+ long WindowStyle = wxNO_BORDER,
+ const wxValidator& Validator = wxDefaultValidator,
+ const wxString& Name = wxT("knob"));
+
+ // Retrieve/change the range
+ void SetRange(int MinValue, int MaxValue);
+
+ int GetMin() const;
+
+ int GetMax() const;
+
+ void SetMin(int MinValue);
+
+ void SetMax(int MaxValue);
+
+ unsigned int GetMinAngle() const;
+
+ int GetMaxAngle() const;
+
+ int GetValue() const;
+
+ int SetValue(int Value);
+
+ private:
+
+ void GetCenter(int& x, int& y) const;
+
+ void OnSize(wxSizeEvent& Event);
+
+ void OnEraseBackground(wxEraseEvent& Event);
+
+ void OnPaint(wxPaintEvent& Event);
+
+ void OnMouse(wxMouseEvent& Event);
+
+ private:
+
+ int mMin;
+
+ int mMax;
+
+ int mSetting;
+
+ unsigned int mMaxAngle;
+
+ unsigned int mRange;
+
+ wxBitmap mBuffer;
+
+ DECLARE_EVENT_TABLE()
+};
+
+//*****************************************************************************
+// Description:
+// These are the knob inline member functions.
+//*****************************************************************************
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+inline
+int JZKnob::GetMin() const
+{
+ return mMin;
+}
+
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+inline
+int JZKnob::GetMax() const
+{
+ return mMax;
+}
+
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+inline
+void JZKnob::SetMin(int MinValue)
+{
+ SetRange(MinValue, GetMax());
+}
+
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+inline
+void JZKnob::SetMax(int MaxValue)
+{
+ SetRange(GetMin(), MaxValue);
+}
+
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+inline
+unsigned int JZKnob::GetMinAngle() const
+{
+ return (mMaxAngle - mRange) % 360;
+}
+
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+inline
+int JZKnob::GetMaxAngle() const
+{
+ return mMaxAngle;
+}
+
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+inline
+int JZKnob::GetValue() const
+{
+ return mSetting;
+}
+
+#endif // !defined(JZ_KNOB_H)
Property changes on: trunk/jazz/src/Knob.h
___________________________________________________________________
Name: svn:eol-style
+ native
Modified: trunk/jazz/src/Makefile.am
===================================================================
--- trunk/jazz/src/Makefile.am 2008-03-17 05:16:19 UTC (rev 325)
+++ trunk/jazz/src/Makefile.am 2008-03-17 06:22:14 UTC (rev 326)
@@ -39,6 +39,7 @@
JazzPlusPlusApplication.cpp \
KeyDialog.cpp \
KeyStringConverters.cpp \
+Knob.cpp \
Mapper.cpp \
MeasureChoice.cpp \
MidiDeviceDialog.cpp \
Modified: trunk/jazz/vc8/JazzPlusPlus-VC8.vcproj
===================================================================
--- trunk/jazz/vc8/JazzPlusPlus-VC8.vcproj 2008-03-17 05:16:19 UTC (rev 325)
+++ trunk/jazz/vc8/JazzPlusPlus-VC8.vcproj 2008-03-17 06:22:14 UTC (rev 326)
@@ -453,6 +453,14 @@
>
</File>
<File
+ RelativePath="..\src\Knob.cpp"
+ >
+ </File>
+ <File
+ RelativePath="..\src\Knob.h"
+ >
+ </File>
+ <File
RelativePath="..\src\Mapper.cpp"
>
</File>
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