1 files changed, 102 insertions, 0 deletions
diff --git a/qtruby/rubylib/examples/qt-examples/chart/chartform_files.rb b/qtruby/rubylib/examples/qt-examples/chart/chartform_files.rb
new file mode 100644
index 00000000..648aba62
--- /dev/null
+++ b/qtruby/rubylib/examples/qt-examples/chart/chartform_files.rb
@@ -0,0 +1,102 @@
+class ChartForm
+
+    def load( filename )
+        file = Qt::File.new( filename )
+        if  !file.open( Qt::IO_ReadOnly ) 
+            statusBar().message( "Failed to load \'%s\'" % filename, 2000 )
+            return
+        end
+    
+        init() # Make sure we have colours
+        @filename = filename
+        ts = Qt::TextStream.new( file )
+        errors = 0
+        i = 0
+        while !ts.eof() 
+            element = Element.new
+            ts >> element
+            if  element.isValid()
+                @elements[i] = element
+                i += 1
+            else
+                errors += 1
+            end
+            if  i == MAX_ELEMENTS 
+                statusBar().message("Read maximum number of elements (%d) discarding others" % i, 2000 )
+                break
+            end
+        end
+    
+        file.close()
+    
+        bad = ""
+        if errors > 0
+            bad = " skipped %d bad record" % errors
+            if  errors > 1
+                bad += "s"
+            end
+        end
+        statusBar().message( "Read %d values from \'%s\'" % [i, filename], 3000 )
+    
+        setCaption( "Chart -- %s" % filename )
+        updateRecentFiles( filename )
+    
+        drawElements()
+        @changed = false
+    end
+    
+    
+    def fileSave()
+        if  @filename.nil? 
+            fileSaveAs()
+            return
+        end
+    
+        file = Qt::File.new( @filename )
+        if  !file.open( Qt::IO_WriteOnly ) 
+            statusBar().message( "Failed to save \'%s\'" % @filename, 2000 )
+            return
+        end
+        ts = Qt::TextStream.new( file )
+        for i in 0...MAX_ELEMENTS
+            if  @elements[i].isValid()
+                ts << @elements[i]
+            end
+        end
+    
+        file.close()
+    
+        setCaption( "Chart -- %s" % @filename )
+        statusBar().message( "Saved \'%s\'" % @filename, 2000 )
+        @changed = false
+    end
+    
+    
+    def fileSaveAsPixmap()
+        filename = Qt::FileDialog.getSaveFileName(nil, "Images (*.png *.xpm *.jpg)",
+                                self, "file save as bitmap",
+                                "Chart -- File Save As Bitmap" )
+        if Qt::Pixmap.grabWidget( @canvasView ).save( filename,
+                    filename.sub(/.*\.([^.]*)$/, '\1').upcase() ) 
+            statusBar().message( "Wrote \'%s\'" % filename, 2000 )
+        else
+            statusBar().message( "Failed to write \'%s\'" % filename, 2000 )
+        end
+    end
+    
+    def filePrint()
+        if  !@printer
+            @printer = Qt::Printer.new
+        end
+        if  @printer.setup() 
+            painter = Qt::Painter.new( @printer )
+            @canvas.drawArea( Qt::Rect.new( 0, 0, @canvas.width(), @canvas.height() ),
+                                painter, false )
+            if  [email protected]().empty? 
+                statusBar().message( "Printed \'%s\'" % @printer.outputFileName(), 2000 )
+            end
+        end
+    end
+
+end
+