# HG changeset patch
# User Chris Cannam
# Date 1168638776 0
# Node ID dd573e090eed305477a1e9c73f00b058cbc3da8d
# Parent  e7cf6044c2a0d6341952deb25888d6bfe5ecbedb
* Add range input dialog
* Make Panner support middle-click/ctrl-left-click to reset and emit
  doubleClicked when doubleClicked instead of resetting
* Use range input dialog to enter new values for panner on double-click

diff -r e7cf6044c2a0 -r dd573e090eed layer/SpectrogramLayer.cpp
--- a/layer/SpectrogramLayer.cpp	Fri Jan 12 14:49:18 2007 +0000
+++ b/layer/SpectrogramLayer.cpp	Fri Jan 12 21:52:56 2007 +0000
@@ -1894,6 +1894,10 @@
         x1 = v->width();
     }
 
+    //!!! This width should really depend on how fast the machine is
+    //at redrawing the spectrogram.  We could fairly easily time that,
+    //in this function, and adjust accordingly.  The following is
+    //probably about as small as the block width should go.
     int paintBlockWidth = (300000 / zoomLevel);
     if (paintBlockWidth < 20) paintBlockWidth = 20;
 
diff -r e7cf6044c2a0 -r dd573e090eed view/Pane.cpp
--- a/view/Pane.cpp	Fri Jan 12 14:49:18 2007 +0000
+++ b/view/Pane.cpp	Fri Jan 12 21:52:56 2007 +0000
@@ -34,6 +34,7 @@
 #include <QPushButton>
 #include "widgets/Thumbwheel.h"
 #include "widgets/Panner.h"
+#include "widgets/RangeInputDialog.h"
 
 using std::cerr;
 using std::endl;
@@ -77,6 +78,9 @@
     std::cerr << "Have " << count+1 << " zoom levels" << std::endl;
 */
 
+    Layer *layer = 0;
+    if (getLayerCount() > 0) layer = getLayer(getLayerCount() - 1);
+
     if (!m_headsUpDisplay) {
 
         m_headsUpDisplay = new QFrame(this);
@@ -103,6 +107,8 @@
         m_vpan->setAlpha(80, 130);
         connect(m_vpan, SIGNAL(rectExtentsChanged(float, float, float, float)),
                 this, SLOT(verticalPannerMoved(float, float, float, float)));
+        connect(m_vpan, SIGNAL(doubleClicked()),
+                this, SLOT(editVerticalPannerExtents()));
 
         m_vthumb = new Thumbwheel(Qt::Vertical);
         m_vthumb->setObjectName(tr("Vertical Zoom"));
@@ -112,12 +118,18 @@
         connect(m_vthumb, SIGNAL(valueChanged(int)), this, 
                 SLOT(verticalThumbwheelMoved(int)));
 
+        if (layer) {
+            RangeMapper *rm = layer->getNewVerticalZoomRangeMapper();
+            if (rm) m_vthumb->setRangeMapper(rm);
+        }
+
         QPushButton *reset = new QPushButton;
         reset->setFixedHeight(16);
         reset->setFixedWidth(16);
         layout->addWidget(reset, 1, 2);
         connect(reset, SIGNAL(clicked()), m_hthumb, SLOT(resetToDefault()));
         connect(reset, SIGNAL(clicked()), m_vthumb, SLOT(resetToDefault()));
+        connect(reset, SIGNAL(clicked()), m_vpan, SLOT(resetToDefault()));
     }
 
     int count = 0;
@@ -179,8 +191,6 @@
 //        std::cerr << "set default value to " << m_hthumb->getDefaultValue() << std::endl;
     }
 
-    Layer *layer = 0;
-    if (getLayerCount() > 0) layer = getLayer(getLayerCount() - 1);
     if (layer) {
         int defaultStep = 0;
         int max = layer->getVerticalZoomSteps(defaultStep);
@@ -702,15 +712,18 @@
 
 bool
 Pane::getTopLayerDisplayExtents(float &vmin, float &vmax,
-                                float &dmin, float &dmax) 
+                                float &dmin, float &dmax,
+                                QString *unit) 
 {
     Layer *layer = 0;
     if (getLayerCount() > 0) layer = getLayer(getLayerCount() - 1);
     if (!layer) return false;
     bool vlog;
     QString vunit;
-    return (layer->getValueExtents(vmin, vmax, vlog, vunit) &&
-            layer->getDisplayExtents(dmin, dmax));
+    bool rv = (layer->getValueExtents(vmin, vmax, vlog, vunit) &&
+               layer->getDisplayExtents(dmin, dmax));
+    if (unit) *unit = vunit;
+    return rv;
 }
 
 bool
@@ -1415,6 +1428,31 @@
     setTopLayerDisplayExtents(newmin, newmax);
 }
 
+void
+Pane::editVerticalPannerExtents()
+{
+    if (!m_vpan || !m_manager || !m_manager->getZoomWheelsEnabled()) return;
+
+    float vmin, vmax, dmin, dmax;
+    QString unit;
+    if (!getTopLayerDisplayExtents(vmin, vmax, dmin, dmax, &unit)
+        || vmax == vmin) {
+        return;
+    }
+
+    RangeInputDialog dialog(tr("Enter new range"),
+                            tr("New vertical display range, from %1 to %2 %4:")
+                            .arg(vmin).arg(vmax).arg(unit),
+                            unit, vmin, vmax, this);
+    dialog.setRange(dmin, dmax);
+
+    if (dialog.exec() == QDialog::Accepted) {
+        dialog.getRange(dmin, dmax);
+        setTopLayerDisplayExtents(dmin, dmax);
+        updateVerticalPanner();
+    }
+}
+
 bool
 Pane::editSelectionStart(QMouseEvent *e)
 {
diff -r e7cf6044c2a0 -r dd573e090eed view/Pane.h
--- a/view/Pane.h	Fri Jan 12 14:49:18 2007 +0000
+++ b/view/Pane.h	Fri Jan 12 21:52:56 2007 +0000
@@ -63,6 +63,7 @@
     virtual void verticalThumbwheelMoved(int value);
     virtual void verticalZoomChanged();
     virtual void verticalPannerMoved(float x, float y, float w, float h);
+    virtual void editVerticalPannerExtents();
 
     virtual void propertyContainerSelected(View *, PropertyContainer *pc);
 
@@ -88,7 +89,8 @@
 
     bool canTopLayerMoveVertical();
     bool getTopLayerDisplayExtents(float &valueMin, float &valueMax,
-                                   float &displayMin, float &displayMax);
+                                   float &displayMin, float &displayMax,
+                                   QString *unit = 0);
     bool setTopLayerDisplayExtents(float displayMin, float displayMax);
 
     void dragTopLayer(QMouseEvent *e);
diff -r e7cf6044c2a0 -r dd573e090eed widgets/Panner.cpp
--- a/widgets/Panner.cpp	Fri Jan 12 14:49:18 2007 +0000
+++ b/widgets/Panner.cpp	Fri Jan 12 21:52:56 2007 +0000
@@ -53,20 +53,26 @@
 void
 Panner::mousePressEvent(QMouseEvent *e)
 {
-    if (e->button() == Qt::LeftButton) {
+    if (e->button() == Qt::MidButton ||
+        ((e->button() == Qt::LeftButton) &&
+         (e->modifiers() & Qt::ControlModifier))) {
+        resetToDefault();
+    } else if (e->button() == Qt::LeftButton) {
         m_clicked = true;
         m_clickPos = e->pos();
         m_dragStartX = m_rectX;
         m_dragStartY = m_rectY;
-    } else if (e->button() == Qt::MidButton) {
-        resetToDefault();
     }
 }
 
 void
 Panner::mouseDoubleClickEvent(QMouseEvent *e)
 {
-    resetToDefault();
+    if (e->button() != Qt::LeftButton) {
+        return;
+    }
+
+    emit doubleClicked();
 }
 
 void
@@ -158,6 +164,15 @@
 }  
 
 void
+Panner::getRectExtents(float &x0, float &y0, float &width, float &height)
+{
+    x0 = m_rectX;
+    y0 = m_rectY;
+    width = m_rectWidth;
+    height = m_rectHeight;
+}
+
+void
 Panner::setRectExtents(float x0, float y0, float width, float height)
 {
     std::cerr << "Panner::setRectExtents(" << x0 << ", " << y0 << ", "
diff -r e7cf6044c2a0 -r dd573e090eed widgets/Panner.h
--- a/widgets/Panner.h	Fri Jan 12 14:49:18 2007 +0000
+++ b/widgets/Panner.h	Fri Jan 12 21:52:56 2007 +0000
@@ -31,6 +31,8 @@
     void setThumbColour(QColor colour);
     void setAlpha(int backgroundAlpha, int thumbAlpha);
 
+    void getRectExtents(float &x0, float &y0, float &width, float &height);
+
     virtual void mousePressEvent(QMouseEvent *e);
     virtual void mouseDoubleClickEvent(QMouseEvent *e);
     virtual void mouseMoveEvent(QMouseEvent *e);
@@ -57,6 +59,12 @@
      */
     void rectCentreMoved(float, float);
 
+    /**
+     * Emitted when the panner is double-clicked (for the "customer"
+     * code to pop up a value editing dialog, for example).
+     */
+    void doubleClicked();
+
 public slots:
     /** 
      * Set the extents of the panned rectangle within the overall
@@ -91,10 +99,11 @@
      */
     void setRectCentreY(float y);
 
+    void resetToDefault();
+
 protected:
     void normalise();
     void emitAndUpdate();
-    void resetToDefault();
 
     float m_rectX;
     float m_rectY;
diff -r e7cf6044c2a0 -r dd573e090eed widgets/RangeInputDialog.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widgets/RangeInputDialog.cpp	Fri Jan 12 21:52:56 2007 +0000
@@ -0,0 +1,134 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Sonic Visualiser
+    An audio file viewer and annotation editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    This file copyright 2007 QMUL.
+    
+    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.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#include "RangeInputDialog.h"
+
+#include <QDoubleSpinBox>
+#include <QGridLayout>
+#include <QLabel>
+#include <QHBoxLayout>
+#include <QPushButton>
+
+RangeInputDialog::RangeInputDialog(QString title, QString message,
+                                   QString unit, float min, float max, 
+                                   QWidget *parent) :
+    QDialog(parent)
+{
+    QGridLayout *grid = new QGridLayout;
+    setLayout(grid);
+
+    setWindowTitle(title);
+    
+    QLabel *messageLabel = new QLabel;
+    messageLabel->setText(message);
+    grid->addWidget(messageLabel, 0, 0, 1, 5);
+
+    m_rangeStart = new QDoubleSpinBox;
+    m_rangeStart->setDecimals(4);
+    m_rangeStart->setMinimum(min);
+    m_rangeStart->setMaximum(max);
+    m_rangeStart->setSuffix(unit);
+    grid->addWidget(m_rangeStart, 1, 1);
+    connect(m_rangeStart, SIGNAL(valueChanged(double)),
+            this, SLOT(rangeStartChanged(double)));
+    
+    grid->addWidget(new QLabel(tr(" to ")), 1, 2);
+
+    m_rangeEnd = new QDoubleSpinBox;
+    m_rangeEnd->setDecimals(4);
+    m_rangeEnd->setMinimum(min);
+    m_rangeEnd->setMaximum(max);
+    m_rangeEnd->setSuffix(unit);
+    grid->addWidget(m_rangeEnd, 1, 3);
+    connect(m_rangeEnd, SIGNAL(valueChanged(double)),
+            this, SLOT(rangeEndChanged(double)));
+
+    QHBoxLayout *hbox = new QHBoxLayout;
+    grid->addLayout(hbox, 2, 0, 1, 5);
+
+    QPushButton *ok = new QPushButton(tr("OK"), this);
+    ok->setDefault(true);
+
+    QPushButton *cancel = new QPushButton(tr("Cancel"), this);
+
+    QSize bs = ok->sizeHint().expandedTo(cancel->sizeHint());
+    ok->setFixedSize(bs);
+    cancel->setFixedSize(bs);
+
+    hbox->addStretch();
+    hbox->addWidget(ok);
+    hbox->addWidget(cancel);
+
+    QObject::connect(ok, SIGNAL(clicked()), this, SLOT(accept()));
+    QObject::connect(cancel, SIGNAL(clicked()), this, SLOT(reject()));
+}
+
+RangeInputDialog::~RangeInputDialog()
+{
+}
+
+void
+RangeInputDialog::getRange(float &min, float &max)
+{
+    min = float(m_rangeStart->value());
+    max = float(m_rangeEnd->value());
+
+    if (min > max) {
+        float tmp = min;
+        min = max;
+        max = tmp;
+    }
+}
+
+void
+RangeInputDialog::setRange(float start, float end)
+{
+    if (start > end) {
+        float tmp = start;
+        start = end;
+        end = tmp;
+    }
+
+    blockSignals(true);
+    m_rangeStart->setValue(start);
+    m_rangeEnd->setValue(end);
+    blockSignals(false);
+}
+
+void
+RangeInputDialog::rangeStartChanged(double min)
+{
+    double max = m_rangeEnd->value();
+    if (min > max) {
+        double tmp = min;
+        min = max;
+        max = tmp;
+    }
+    emit rangeChanged(float(min), float(max));
+}
+
+
+void
+RangeInputDialog::rangeEndChanged(double max)
+{
+    double min = m_rangeStart->value();
+    if (min > max) {
+        double tmp = min;
+        min = max;
+        max = tmp;
+    }
+    emit rangeChanged(float(min), float(max));
+}
+
diff -r e7cf6044c2a0 -r dd573e090eed widgets/RangeInputDialog.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widgets/RangeInputDialog.h	Fri Jan 12 21:52:56 2007 +0000
@@ -0,0 +1,50 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Sonic Visualiser
+    An audio file viewer and annotation editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    This file copyright 2007 QMUL.
+    
+    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.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#ifndef _RANGE_INPUT_DIALOG_H_
+#define _RANGE_INPUT_DIALOG_H_
+
+#include <QDialog>
+#include <QString>
+
+class QDoubleSpinBox;
+
+class RangeInputDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    RangeInputDialog(QString title, QString message, QString unit,
+                     float min, float max, QWidget *parent = 0);
+    virtual ~RangeInputDialog();
+
+    void getRange(float &start, float &end);
+    
+signals:
+    void rangeChanged(float start, float end);
+
+public slots:
+    void setRange(float start, float end);
+
+protected slots:
+    void rangeStartChanged(double);
+    void rangeEndChanged(double);
+
+protected:
+    QDoubleSpinBox *m_rangeStart;
+    QDoubleSpinBox *m_rangeEnd;
+};
+
+#endif
diff -r e7cf6044c2a0 -r dd573e090eed widgets/Thumbwheel.cpp
--- a/widgets/Thumbwheel.cpp	Fri Jan 12 14:49:18 2007 +0000
+++ b/widgets/Thumbwheel.cpp	Fri Jan 12 21:52:56 2007 +0000
@@ -278,7 +278,7 @@
 void
 Thumbwheel::mouseDoubleClickEvent(QMouseEvent *mouseEvent)
 {
-    //!!! needs a common base class with AudioDial
+    //!!! needs a common base class with AudioDial (and Panner?)
 
     if (mouseEvent->button() != Qt::LeftButton) {
         return;
diff -r e7cf6044c2a0 -r dd573e090eed widgets/widgets.pro
--- a/widgets/widgets.pro	Fri Jan 12 14:49:18 2007 +0000
+++ b/widgets/widgets.pro	Fri Jan 12 21:52:56 2007 +0000
@@ -25,6 +25,7 @@
            PluginParameterDialog.h \
            PropertyBox.h \
            PropertyStack.h \
+           RangeInputDialog.h \
            SubdividingMenu.h \
            Thumbwheel.h \
            WindowShapePreview.h \
@@ -40,6 +41,7 @@
            PluginParameterDialog.cpp \
            PropertyBox.cpp \
            PropertyStack.cpp \
+           RangeInputDialog.cpp \
            SubdividingMenu.cpp \
            Thumbwheel.cpp \
            WindowShapePreview.cpp \