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-rw-r--r--qtruby/rubylib/tutorial/t10/cannon.rb71
-rw-r--r--qtruby/rubylib/tutorial/t10/lcdrange.rb35
-rwxr-xr-xqtruby/rubylib/tutorial/t10/t10.rb57
3 files changed, 163 insertions, 0 deletions
diff --git a/qtruby/rubylib/tutorial/t10/cannon.rb b/qtruby/rubylib/tutorial/t10/cannon.rb
new file mode 100644
index 00000000..3c02f8ff
--- /dev/null
+++ b/qtruby/rubylib/tutorial/t10/cannon.rb
@@ -0,0 +1,71 @@
+require 'Qt'
+
+class CannonField < Qt::Widget
+ signals 'angleChanged(int)', 'forceChanged(int)'
+ slots 'setAngle(int)', 'setForce(int)'
+
+ def initialize(parent, name)
+ super
+ @ang = 45
+ @f = 0
+ setPalette( Qt::Palette.new( Qt::Color.new( 250, 250, 200) ) )
+ end
+
+ def setAngle( degrees )
+ if degrees < 5
+ degrees = 5
+ elsif degrees > 70
+ degrees = 70
+ end
+ if @ang == degrees
+ return
+ end
+ @ang = degrees
+ repaint()
+ emit angleChanged( @ang )
+ end
+
+ def setForce( newton )
+ if newton < 0
+ newton = 0
+ end
+ if @f == newton
+ return
+ end
+ @f = newton
+ emit forceChanged( @f )
+ end
+
+ def paintEvent( e )
+ if !e.rect().intersects( cannonRect() )
+ return
+ end
+
+ cr = cannonRect()
+ pix = Qt::Pixmap.new( cr.size() )
+ pix.fill( self, cr.topLeft() )
+
+ p = Qt::Painter.new( pix )
+ p.setBrush( blue )
+ p.setPen( Qt::NoPen )
+ p.translate( 0, pix.height() - 1 )
+ p.drawPie( Qt::Rect.new(-35, -35, 70, 70), 0, 90*16 )
+ p.rotate( - @ang )
+ p.drawRect( Qt::Rect.new(33, -4, 15, 8) )
+ p.end()
+
+ p.begin(self)
+ p.drawPixmap(cr.topLeft(), pix )
+ p.end()
+ end
+
+ def cannonRect()
+ r = Qt::Rect.new( 0, 0, 50, 50)
+ r.moveBottomLeft( rect().bottomLeft() )
+ return r
+ end
+
+ def sizePolicy()
+ return Qt::SizePolicy.new( Qt::SizePolicy::Expanding, Qt::SizePolicy::Expanding )
+ end
+end
diff --git a/qtruby/rubylib/tutorial/t10/lcdrange.rb b/qtruby/rubylib/tutorial/t10/lcdrange.rb
new file mode 100644
index 00000000..a0adc842
--- /dev/null
+++ b/qtruby/rubylib/tutorial/t10/lcdrange.rb
@@ -0,0 +1,35 @@
+require 'Qt'
+
+class LCDRange < Qt::VBox
+ signals 'valueChanged(int)'
+ slots 'setValue(int)', 'setRange(int, int)'
+
+ def initialize(parent, name)
+ super
+ lcd = Qt::LCDNumber.new(2, self, 'lcd')
+ @slider = Qt::Slider.new(Qt::VBox::Horizontal, self, 'slider')
+ @slider.setRange(0, 99)
+ @slider.setValue(0)
+ connect(@slider, SIGNAL('valueChanged(int)'), lcd, SLOT('display(int)'))
+ connect(@slider, SIGNAL('valueChanged(int)'), SIGNAL('valueChanged(int)'))
+ setFocusProxy(@slider)
+ end
+
+ def value()
+ @slider.value()
+ end
+
+ def setValue( value )
+ @slider.setValue( value )
+ end
+
+ def setRange( minVal, maxVal )
+ if minVal < 0 || maxVal > 99 || minVal > maxVal
+ qWarning( "LCDRange::setRange(#{minVal},#{maxVal})\n" +
+ "\tRange must be 0..99\n" +
+ "\tand minVal must not be greater than maxVal" )
+ return
+ end
+ @slider.setRange( minVal, maxVal )
+ end
+end
diff --git a/qtruby/rubylib/tutorial/t10/t10.rb b/qtruby/rubylib/tutorial/t10/t10.rb
new file mode 100755
index 00000000..4168d507
--- /dev/null
+++ b/qtruby/rubylib/tutorial/t10/t10.rb
@@ -0,0 +1,57 @@
+#!/usr/bin/env ruby
+$VERBOSE = true; $:.unshift File.dirname($0)
+
+require 'Qt'
+require 'lcdrange.rb'
+require 'cannon.rb'
+
+class MyWidget < Qt::Widget
+ def initialize()
+ super
+ quit = Qt::PushButton.new('Quit', self, 'quit')
+ quit.setFont(Qt::Font.new('Times', 18, Qt::Font::Bold))
+
+ connect(quit, SIGNAL('clicked()'), $qApp, SLOT('quit()'))
+
+ angle = LCDRange.new( self, 'angle' )
+ angle.setRange( 5, 70 )
+
+ force = LCDRange.new( self, 'force' )
+ force.setRange( 10, 50 )
+
+ cannonField = CannonField.new( self, 'cannonField' )
+
+ connect( angle, SIGNAL('valueChanged(int)'),
+ cannonField, SLOT('setAngle(int)') )
+ connect( cannonField, SIGNAL('angleChanged(int)'),
+ angle, SLOT('setValue(int)') )
+
+ connect( force, SIGNAL('valueChanged(int)'),
+ cannonField, SLOT('setForce(int)') )
+ connect( cannonField, SIGNAL('forceChanged(int)'),
+ force, SLOT('setValue(int)') )
+
+ grid = Qt::GridLayout.new( self, 2, 2, 10 )
+ grid.addWidget( quit, 0, 0 )
+ grid.addWidget( cannonField, 1, 1 )
+ grid.setColStretch( 1, 10 )
+
+ leftBox = Qt::VBoxLayout.new()
+ grid.addLayout( leftBox, 1, 0 )
+ leftBox.addWidget( angle )
+ leftBox.addWidget( force )
+
+ angle.setValue( 60 )
+ force.setValue( 25 )
+ angle.setFocus()
+ end
+end
+
+Qt::Application.setColorSpec( Qt::Application::CustomColor )
+a = Qt::Application.new(ARGV)
+
+w = MyWidget.new
+w.setGeometry( 100, 100, 500, 355 )
+a.setMainWidget(w)
+w.show
+a.exec