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-rw-r--r--attic/muse_qt4_evolution/awl/knob.cpp281
1 files changed, 0 insertions, 281 deletions
diff --git a/attic/muse_qt4_evolution/awl/knob.cpp b/attic/muse_qt4_evolution/awl/knob.cpp
deleted file mode 100644
index ccc3988e..00000000
--- a/attic/muse_qt4_evolution/awl/knob.cpp
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@@ -1,281 +0,0 @@
-//=============================================================================
-// Awl
-// Audio Widget Library
-// $Id:$
-//
-// Copyright (C) 2002-2006 by Werner Schweer and others
-//
-// This program is free software; you can redistribute it and/or modify
-// it under the terms of the GNU General Public License version 2.
-//
-// 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 "knob.h"
-
-namespace Awl {
-
-//---------------------------------------------------------
-// Knob
-/// this is the AwlKnob contructor
-//---------------------------------------------------------
-
-Knob::Knob(QWidget* parent)
- : AbstractSlider(parent)
- {
- _scaleSize = 270;
- _markSize = 6;
- _border = 2;
- points = 0;
- }
-
-//---------------------------------------------------------
-// Knob
-//---------------------------------------------------------
-
-Knob::~Knob()
- {
- if (points)
- delete points;
- }
-
-//---------------------------------------------------------
-// setText
-//---------------------------------------------------------
-
-void Knob::setText(const QString& s)
- {
- if (s != _text) {
- _text = s;
- update();
- }
- }
-
-//---------------------------------------------------------
-// setScaleSize
-//! set the scale size in degrees
-//
-//! the scale size is the max moving angle measured
-//! in degrees
-//---------------------------------------------------------
-
-void Knob::setScaleSize(int val)
- {
- if (val != _scaleSize) {
- _scaleSize = val;
- update();
- }
- }
-
-//---------------------------------------------------------
-// setMarkSize
-//! set size of the center marker
-//---------------------------------------------------------
-
-void Knob::setMarkSize(int val)
- {
- if (val != _markSize) {
- _markSize = val;
- update();
- }
- }
-
-//---------------------------------------------------------
-// setBorder
-//! set border size
-//---------------------------------------------------------
-
-void Knob::setBorder(int val)
- {
- if (val != _border) {
- _border = val;
- update();
- }
- }
-
-//---------------------------------------------------------
-// mousePressEvent
-//---------------------------------------------------------
-
-void Knob::mousePressEvent(QMouseEvent* ev)
- {
- startY = ev->y();
- emit sliderPressed(_id);
- if (_center) {
- QRect r(points->boundingRect().toRect());
- if (r.contains(ev->pos())) {
- setValue(.0f);
- valueChange();
- update();
- }
- }
- }
-
-//---------------------------------------------------------
-// mouseReleaseEvent
-//---------------------------------------------------------
-
-void Knob::mouseReleaseEvent(QMouseEvent*)
- {
- emit sliderReleased(_id);
- }
-
-//---------------------------------------------------------
-// mouseMoveEvent
-//---------------------------------------------------------
-
-void Knob::mouseMoveEvent(QMouseEvent* ev)
- {
- int y = ev->y();
- double delta = (maxValue() - minValue()) / 100.0f;
- if (delta == 0)
- delta = 1;
- _value += (startY - y) * delta;
- if (_value < minValue())
- _value = _minValue;
- else if (_value > maxValue())
- _value = _maxValue;
- startY = y;
- valueChange();
- update();
- }
-
-//---------------------------------------------------------
-// paintEvent
-//---------------------------------------------------------
-
-void Knob::paintEvent(QPaintEvent* ev)
- {
- QRect rr(ev->rect());
- QPainter p(this);
- p.setRenderHint(QPainter::Antialiasing, true);
-
- int markSize2 = _markSize/2;
- int restR = 360 - _scaleSize;
- int w = width() - _scaleWidth - 2 * _border;
- int h = height() - _scaleWidth/2 - 2 * _border;
-
- int xoffset, yoffset;
- if (_center)
- h -= _markSize;
- if (w > h) {
- yoffset = 0;
- xoffset = (w - h) / 2;
- w = h;
- }
- else {
- xoffset = 0;
- // yoffset = (h - w) / 2; // center
- yoffset = h - w; // top align
- h = w;
- }
-
- int x = xoffset + _scaleWidth / 2 + _border;
- int y = yoffset + _scaleWidth / 2 + _border + (_center ? _markSize+_scaleWidth/2 : 0);
- QRectF ar(x, y, w, h);
-
- QColor sc(isEnabled() ? _scaleColor : Qt::gray);
- QColor svc(isEnabled() ? _scaleValueColor : Qt::gray);
-
- //-----------------------------------------
- // draw arc
- //-----------------------------------------
-
- double dvalue = maxValue() - minValue();
- if (_center) {
- int size = _scaleSize * 8;
- if (_value >= 0) {
- int offset = (restR-180) * 8;
- int r1 = int (size * _value / maxValue());
- int r2 = size - r1;
- p.setPen(QPen(sc, _scaleWidth));
- if (r2 > 1)
- p.drawArc(ar, offset, r2);
- if (size > 1)
- p.drawArc(ar, 90*16, size);
- if (r1 > 1) {
- p.setPen(QPen(svc, _scaleWidth));
- p.drawArc(ar, offset+r2, r1);
- }
- }
- else {
- // int offset = (restR+180) * 8;
- int r1 = int(size * _value / minValue());
- int r2 = size - r1;
-
- p.setPen(QPen(sc, _scaleWidth));
- if (size > 1)
- p.drawArc(ar, (restR-180)*8, size);
- if (r2 > 1)
- p.drawArc(ar, 90 * 16 + r1, r2);
- if (r1 > 1) {
- p.setPen(QPen(svc, _scaleWidth));
- p.drawArc(ar, 90*16, r1);
- }
- }
- }
- else {
- int offset = (180-restR) * 8;
- int size = _scaleSize * 16;
- int r1 = int(size * (_value - minValue()) / dvalue);
- int r2 = size - r1;
- if (r2 >= 1) {
- p.setPen(QPen(sc, _scaleWidth));
- p.drawArc(ar, -offset, r2);
- }
- if (r1 >= 1) {
- p.setPen(QPen(svc, _scaleWidth));
- p.drawArc(ar, r2-offset, r1);
- }
- }
-
- //-----------------------------------------
- // draw pointer
- //-----------------------------------------
-
- p.setPen(QPen(svc, _scaleWidth));
- double r1 = double(_scaleSize) * (_value-minValue()) / dvalue + 90.0
- + double(restR/2);
- r1 = r1 / 180.0 * M_PI; // convert to radians
- int rd = w/2;
- int x1 = x + rd;
- int y1 = y + rd;
- int x2 = x1 + lrint(cos(r1) * double(rd));
- int y2 = y1 + lrint(sin(r1) * double(rd));
- p.drawLine(x1, y1, x2, y2);
-
- //-----------------------------------------
- // draw center mark
- //-----------------------------------------
-
- p.setPen(QPen(svc, 0));
- p.setBrush(svc);
- if (_center) {
- if (points)
- delete points;
- qreal x = ar.width() / 2 + ar.x();
- qreal y = ar.y() - _markSize - _scaleWidth/2;
- points = new QPainterPath(QPointF(x - markSize2, y));
- points->lineTo(x + markSize2, y);
- points->lineTo(x, _markSize + y);
- points->closeSubpath();
- p.drawPath(*points);
- }
-
- //-----------------------------------------
- // draw text
- //-----------------------------------------
-
- if (!_text.isEmpty()) {
- p.drawText(rect(), Qt::AlignBottom | Qt::AlignHCenter, _text);
- }
- }
-}
-
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