chiark - git - ianmdlvl - cura.git/blob

   1 """
   2 This page is in the table of contents.
   3 Display line is a mouse tool to select and display information about the line.
   4
   5 When a line is clicked, the line will be selected and information about the line will be displayed.  If a gcode line is clicked, the information will be file line count of the line clicked, counting from one, and the line itself.
   6
   7 When the display line tool is chosen and the canvas has the focus, display line will listen to the arrow keys.  Clicking in the canvas gives the canvas the focus, and when the canvas has the focus a thick black border is drawn around the canvas.  When the right arrow key is pressed, display line will increase the line index of the layer by one, and change the selection accordingly.  If the line index of the layer goes over the index of the last line, the layer index will be increased by one and the new line index will be zero.  When the left arrow key is pressed, the index will be decreased.  If the line index goes below the index of the first line, the layer index will be decreased by one and the new line index will be at the last line.  The up arrow key increases the layer index by one and the down arow key decreases the line index.
   8
   9 """
  10
  11 from __future__ import absolute_import
  12 #Init has to be imported first because it has code to workaround the python bug where relative imports don't work if the module is imported as a main module.
  13 import __init__
  14
  15 from skeinforge_application.skeinforge_plugins.analyze_plugins.analyze_utilities.mouse_tool_base import MouseToolBase
  16 from fabmetheus_utilities import gcodec
  17 from fabmetheus_utilities import settings
  18
  19 __author__ = 'Enrique Perez (perez_enrique@yahoo.com)'
  20 __date__ = '$Date: 2008/21/04 $'
  21 __license__ = 'GNU Affero General Public License http://www.gnu.org/licenses/agpl.html'
  22
  23
  24 def getNewMouseTool():
  25         "Get a new mouse tool."
  26         return DisplayLine()
  27
  28
  29 class DisplayLine( MouseToolBase ):
  30         "Display the line when it is clicked."
  31         def button1( self, event, shift = False ):
  32                 "Print line text and connection line."
  33                 self.destroyEverythingGetFocus()
  34                 x = self.canvas.canvasx(event.x)
  35                 y = self.canvas.canvasy(event.y)
  36                 tags = self.getTagsGivenXY(x, y)
  37                 if tags == '':
  38                         return
  39                 if tags.startswith('colored_line_index:'):
  40                         splitLine = tags.split()
  41                         coloredLineIndex = int(splitLine[1])
  42                         self.repository.line.value = coloredLineIndex
  43                         tags = self.getSelectedColoredLine().displayString
  44                 self.drawLineText( complex( float(x), float(y) ), tags )
  45
  46         def destroyEverything(self):
  47                 "Destroy items."
  48                 self.canvas.delete('mouse_item')
  49                 self.canvas.delete('selection_line')
  50
  51         def drawLineText( self, location, tags ):
  52                 "Draw the line text."
  53                 self.window.getDrawnLineText( location, 'mouse_item', tags )
  54
  55         def drawSelectedColoredLineText(self):
  56                 "Draw the selected line and text."
  57                 selectedColoredLine = self.getSelectedColoredLine()
  58                 if len( self.canvas.find_withtag('selection_line') ) < 1 or selectedColoredLine == None:
  59                         return
  60                 tags = selectedColoredLine.displayString
  61                 lineCoordinates = self.canvas.coords( self.canvas.find_withtag('selection_line')[-1] )
  62                 begin = complex( lineCoordinates[0], lineCoordinates[1] )
  63                 end = complex( lineCoordinates[2], lineCoordinates[3] )
  64                 segment = end - begin
  65                 segmentLength = abs(segment)
  66                 if segmentLength <= 0.0:
  67                         return
  68                 towardEnd = 0.75 * segment
  69                 segmentClockwise = 20.0 * complex( segment.imag, - segment.real ) / segmentLength
  70                 location = begin + towardEnd + segmentClockwise
  71                 self.drawLineText( location, tags )
  72
  73         def getSelectedColoredLine(self):
  74                 "Draw the selected line, add it to the items and return the colored line."
  75                 self.window.cancelTimerResetButtons()
  76                 coloredLines = self.window.getColoredLines()
  77                 self.repository.line.value = max(0, self.repository.line.value)
  78                 if len(coloredLines) < 1:
  79                         return None
  80                 self.repository.line.value = min(len(coloredLines) - 1, self.repository.line.value)
  81                 self.window.setLineButtonsState()
  82                 coloredLine = coloredLines[self.repository.line.value]
  83                 lineCoordinates = self.canvas.coords(self.window.getDrawnSelectedColoredLine(coloredLine))
  84                 end = complex(lineCoordinates[2], lineCoordinates[3])
  85                 radiusComplex = complex(16.0, 16.0)
  86                 upperLeft = end - radiusComplex
  87                 lowerRight = end + radiusComplex
  88                 self.canvas.create_oval (int(upperLeft.real), int(upperLeft.imag), int(lowerRight.real), int(lowerRight.imag), tags = 'mouse_item')
  89                 return coloredLine
  90
  91         def isSelectionTool(self):
  92                 "Return if this mouse tool is a selection tool."
  93                 return True
  94
  95         def keyPressDown(self, event):
  96                 "The down arrow was pressed."
  97                 self.destroyEverything()
  98                 self.window.setLayerIndex( self.repository.layer.value - 1 )
  99
 100         def keyPressLeft(self, event):
 101                 "The left arrow was pressed."
 102                 self.destroyEverything()
 103                 self.repository.line.value -= 1
 104                 if self.window.isLineBelowZeroSetLayer():
 105                         return
 106                 self.drawSelectedColoredLineText()
 107
 108         def keyPressRight(self, event):
 109                 "The right arrow was pressed."
 110                 self.destroyEverything()
 111                 self.repository.line.value += 1
 112                 if self.window.isLineBeyondListSetLayer():
 113                         return
 114                 self.drawSelectedColoredLineText()
 115
 116         def keyPressUp(self, event):
 117                 "The up arrow was pressed."
 118                 self.destroyEverything()
 119                 self.window.setLayerIndex( self.repository.layer.value + 1 )
 120
 121         def update(self):
 122                 "Update the mouse tool."
 123                 self.destroyEverything()
 124                 self.drawSelectedColoredLineText()