新增qwt源码版本

2019-11-07 10:56:33 +08:00
parent d9b38d7ecd
commit 4746999d0e
377 changed files with 81225 additions and 1 deletions
--- a/qwtdemo/examples/controls/sliderbox.cpp
+++ b/qwtdemo/examples/controls/sliderbox.cpp
@@ -0,0 +1,172 @@
+#include <qlabel.h>
+#include <qlayout.h>
+#include <qwt_slider.h>
+#include <qwt_scale_engine.h>
+#include <qwt_transform.h>
+#include "sliderbox.h"
+
+SliderBox::SliderBox( int sliderType, QWidget *parent ):
+    QWidget( parent )
+{
+    d_slider = createSlider( sliderType );
+
+    QFlags<Qt::AlignmentFlag> alignment;
+
+    if ( d_slider->orientation() == Qt::Horizontal )
+    {
+        if ( d_slider->scalePosition() == QwtSlider::TrailingScale )
+            alignment = Qt::AlignBottom;
+        else
+            alignment = Qt::AlignTop;
+
+        alignment |= Qt::AlignHCenter;
+    }
+    else
+    {
+        if ( d_slider->scalePosition() == QwtSlider::TrailingScale )
+            alignment = Qt::AlignRight;
+        else
+            alignment = Qt::AlignLeft;
+
+        alignment |= Qt::AlignVCenter;
+    }
+
+    d_label = new QLabel( this );
+    d_label->setAlignment( alignment );
+    d_label->setFixedWidth( d_label->fontMetrics().width( "10000.9" ) );
+
+    connect( d_slider, SIGNAL( valueChanged( double ) ), SLOT( setNum( double ) ) );
+
+    QBoxLayout *layout;
+    if ( d_slider->orientation() == Qt::Horizontal )
+        layout = new QHBoxLayout( this );
+    else
+        layout = new QVBoxLayout( this );
+
+    layout->addWidget( d_slider );
+    layout->addWidget( d_label );
+
+    setNum( d_slider->value() );
+}
+
+QwtSlider *SliderBox::createSlider( int sliderType ) const
+{
+    QwtSlider *slider = new QwtSlider();
+
+    switch( sliderType )
+    {
+        case 0:
+        {
+            slider->setOrientation( Qt::Horizontal );
+            slider->setScalePosition( QwtSlider::TrailingScale );
+            slider->setTrough( true );
+            slider->setGroove( false );
+            slider->setSpacing( 0 );
+            slider->setHandleSize( QSize( 30, 16 ) );
+            slider->setScale( 10.0, -10.0 ); 
+            slider->setTotalSteps( 8 ); 
+            slider->setSingleSteps( 1 ); 
+            slider->setPageSteps( 1 ); 
+            slider->setWrapping( true );
+            break;
+        }
+        case 1:
+        {
+            slider->setOrientation( Qt::Horizontal );
+            slider->setScalePosition( QwtSlider::NoScale );
+            slider->setTrough( true );
+            slider->setGroove( true );
+            slider->setScale( 0.0, 1.0 );
+            slider->setTotalSteps( 100 );
+            slider->setSingleSteps( 1 );
+            slider->setPageSteps( 5 );
+            break;
+        }
+        case 2:
+        {
+            slider->setOrientation( Qt::Horizontal );
+            slider->setScalePosition( QwtSlider::LeadingScale );
+            slider->setTrough( false );
+            slider->setGroove( true );
+            slider->setHandleSize( QSize( 12, 25 ) );
+            slider->setScale( 1000.0, 3000.0 );
+            slider->setTotalSteps( 200.0 );
+            slider->setSingleSteps( 2 );
+            slider->setPageSteps( 10 );
+            break;
+        }
+        case 3:
+        {
+            slider->setOrientation( Qt::Horizontal );
+            slider->setScalePosition( QwtSlider::TrailingScale );
+            slider->setTrough( true );
+            slider->setGroove( true );
+
+            QwtLinearScaleEngine *scaleEngine = new QwtLinearScaleEngine( 2 );
+            scaleEngine->setTransformation( new QwtPowerTransform( 2 ) );
+            slider->setScaleEngine( scaleEngine );
+            slider->setScale( 0.0, 128.0 );
+            slider->setTotalSteps( 100 );
+            slider->setStepAlignment( false );
+            slider->setSingleSteps( 1 );
+            slider->setPageSteps( 5 );
+            break;
+        }
+        case 4:
+        {
+            slider->setOrientation( Qt::Vertical );
+            slider->setScalePosition( QwtSlider::TrailingScale );
+            slider->setTrough( false );
+            slider->setGroove( true );
+            slider->setScale( 100.0, 0.0 );
+            slider->setInvertedControls( true );
+            slider->setTotalSteps( 100 );
+            slider->setPageSteps( 5 );
+            slider->setScaleMaxMinor( 5 );
+            break;
+        }
+        case 5:
+        {
+            slider->setOrientation( Qt::Vertical );
+            slider->setScalePosition( QwtSlider::NoScale );
+            slider->setTrough( true );
+            slider->setGroove( false );
+            slider->setScale( 0.0, 100.0 );
+            slider->setTotalSteps( 100 );
+            slider->setPageSteps( 10 );
+            break;
+        }
+        case 6:
+        {
+            slider->setOrientation( Qt::Vertical );
+            slider->setScalePosition( QwtSlider::LeadingScale );
+            slider->setTrough( true );
+            slider->setGroove( true );
+            slider->setScaleEngine( new QwtLogScaleEngine );
+            slider->setStepAlignment( false );
+            slider->setHandleSize( QSize( 20, 32 ) );
+            slider->setBorderWidth( 1 );
+            slider->setScale( 1.0, 1.0e4 );
+            slider->setTotalSteps( 100 );
+            slider->setPageSteps( 10 );
+            slider->setScaleMaxMinor( 9 );
+            break;
+        }
+    }
+
+    if ( slider )
+    {
+        QString name( "Slider %1" );
+        slider->setObjectName( name.arg( sliderType ) );
+    }
+
+    return slider;
+}
+
+void SliderBox::setNum( double v )
+{
+    QString text;
+    text.setNum( v, 'f', 2 );
+
+    d_label->setText( text );
+}