Module: RUtilAnts::GUI

Defined in:
lib/rUtilAnts/GUI.rb,
lib/rUtilAnts/GUI/BugReportDialog.rb

Defined Under Namespace

Classes: BitmapProgressDialog, BugReportDialog, ImageListManager, ProgressDialog, SafeTimersManager, TextProgressDialog

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.initializeGUI ⇒ Object

Initialize the GUI methods in the Object namespace



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# File 'lib/rUtilAnts/GUI.rb', line 376

def self.initializeGUI
  Object.module_eval('include RUtilAnts::GUI')
end

Instance Method Details

#getBitmapFromURL(iFileName, iIconIndex = nil, iBitmapTypes = nil) ⇒ Object

Get a bitmap/icon from a URL. If no type has been provided, it detects the type of icon based on the file extension. Use URL caching.

Parameters

  • iFileName (String): The file name

  • iIconIndex (Integer): Specify the icon index (used by Windows for EXE/DLL/ICO…) [optional = nil]

  • iBitmapTypes (Integer or list<Integer>): Bitmap/Icon type. Can be nil for autodetection. Can be the list of types to try. [optional = nil]

Return

  • Wx::Bitmap: The bitmap, or nil in case of failure

  • Exception: The exception containing details about the error, or nil in case of success



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# File 'lib/rUtilAnts/GUI.rb', line 441

def getBitmapFromURL(iFileName, iIconIndex = nil, iBitmapTypes = nil)
  rReadBitmap = nil
  rReadError = nil

  rReadBitmap, rReadError = get_url_content(iFileName, :local_file_access => true) do |iRealFileName|
    rBitmap = nil
    rError = nil

    lBitmapTypesToTry = iBitmapTypes
    if (iBitmapTypes == nil)
      # Autodetect
      lBitmapTypesToTry = [ Wx::Bitmap::BITMAP_TYPE_GUESS[File.extname(iRealFileName).downcase[1..-1]] ]
      if (lBitmapTypesToTry == [ nil ])
        # Here we handle extensions that wxruby is not aware of
        case File.extname(iRealFileName).upcase
        when '.CUR', '.ANI', '.EXE', '.DLL'
          lBitmapTypesToTry = [ Wx::BITMAP_TYPE_ICO ]
        else
          log_err "Unable to determine the bitmap type corresponding to extension #{File.extname(iRealFileName).upcase}. Assuming ICO."
          lBitmapTypesToTry = [ Wx::BITMAP_TYPE_ICO ]
        end
      end
    elsif (!iBitmapTypes.is_a?(Array))
      lBitmapTypesToTry = [ iBitmapTypes ]
    end
    # Try each type
    lBitmapTypesToTry.each do |iBitmapType|
      # Special case for the ICO type
      if (iBitmapType == Wx::BITMAP_TYPE_ICO)
        lIconID = iRealFileName
        if ((iIconIndex != nil) and
            (iIconIndex != 0))
          # TODO: Currently this implementation does not work. Uncomment when ok.
          #lIconID += ";#{iIconIndex}"
        end
        rBitmap = Wx::Bitmap.new
        begin
          rBitmap.copy_from_icon(Wx::Icon.new(lIconID, Wx::BITMAP_TYPE_ICO))
        rescue Exception
          rError = $!
          rBitmap = nil
        end
      else
        rBitmap = Wx::Bitmap.new(iRealFileName, iBitmapType)
      end
      if (rBitmap != nil)
        if (rBitmap.is_ok)
          break
        else
          # File seems to be corrupted
          rError = RuntimeError.new("Bitmap #{iFileName} is corrupted.")
          rBitmap = nil
        end
      else
        rBitmap = nil
      end
    end

    return rBitmap, rError
  end

  # Check if it is ok and the error set correctly
  if ((rReadBitmap == nil) and
      (rReadError == nil))
    rError = RuntimeError.new("Unable to get bitmap from #{iFileName}")
  end

  return rReadBitmap, rReadError
end

#getResizedBitmap(iBitmap, iWidth, iHeight) ⇒ Object

Get a bitmap resized to a given size if it differs from it

Parameters

  • iBitmap (Wx::Bitmap): The original bitmap

  • iWidth (Integer): The width of the resized bitmap

  • iHeight (Integer): The height of the resized bitmap

Return

  • Wx::Bitmap: The resized bitmap (can be the same object as iBitmap)



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# File 'lib/rUtilAnts/GUI.rb', line 388

def getResizedBitmap(iBitmap, iWidth, iHeight)
  rResizedBitmap = iBitmap

  if ((iBitmap.width != iWidth) or
      (iBitmap.height != iHeight))
    rResizedBitmap = Wx::Bitmap.new(iBitmap.convert_to_image.scale(iWidth, iHeight))
  end

  return rResizedBitmap
end

#safeTimerAfter(ioSafeTimersManager, iElapsedTime) ⇒ Object

Execute some code after some elapsed time.

Parameters

  • ioSafeTimersManager (SafeTimersManager): The manager that handles this SafeTimer

  • iElapsedTime (Integer): The elapsed time to wait before running the code

  • CodeBlock: The code to execute



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# File 'lib/rUtilAnts/GUI.rb', line 545

def safeTimerAfter(ioSafeTimersManager, iElapsedTime)
  # Create the Timer and register it
  lTimer = nil
  lTimer = Wx::Timer.after(iElapsedTime) do
    yield
    # Now the Timer can be safely destroyed.
    ioSafeTimersManager.unregisterTimer(lTimer)
  end
  ioSafeTimersManager.registerTimer(lTimer)
end

#safeTimerEvery(ioSafeTimersManager, iElapsedTime) ⇒ Object

Execute some code every some elapsed time.

Parameters

  • ioSafeTimersManager (SafeTimersManager): The manager that handles this SafeTimer

  • iElapsedTime (Integer): The elapsed time to wait before running the code

  • CodeBlock: The code to execute



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# File 'lib/rUtilAnts/GUI.rb', line 562

def safeTimerEvery(ioSafeTimersManager, iElapsedTime)
  # Create the Timer and register it
  lTimer = Wx::Timer.every(iElapsedTime) do
    yield
  end
  ioSafeTimersManager.registerTimer(lTimer)
end

#setupBitmapProgress(iParentWindow, iBitmap, iParameters = {}, &iCodeToExecute) ⇒ Object

Setup a progress bar with some bitmap in it and call code around it

Parameters

  • iParentWindow (Wx::Window): The parent window

  • iBitmap (Wx::Bitmap): The bitmap to display

  • iParameters (map<Symbol,Object>): Additional parameters (check RUtilAnts::GUI::ProgressDialog#initialize documentation):

  • CodeBlock: The code called with the progress bar created:

    • ioProgressDlg (RUtilAnts::GUI::ProgressDialog): The progress dialog



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# File 'lib/rUtilAnts/GUI.rb', line 533

def setupBitmapProgress(iParentWindow, iBitmap, iParameters = {}, &iCodeToExecute)
  showModal(BitmapProgressDialog, iParentWindow, iCodeToExecute, iBitmap, iParameters) do |iModalResult, iDialog|
    # Nothing to do
  end
end

#setupTextProgress(iParentWindow, iText, iParameters = {}, &iCodeToExecute) ⇒ Object

Setup a progress bar with some text in it and call code around it

Parameters

  • iParentWindow (Wx::Window): The parent window

  • iText (String): The text to display

  • iParameters (map<Symbol,Object>): Additional parameters (check RUtilAnts::GUI::ProgressDialog#initialize documentation):

  • CodeBlock: The code called with the progress bar created:

    • ioProgressDlg (RUtilAnts::GUI::ProgressDialog): The progress dialog



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# File 'lib/rUtilAnts/GUI.rb', line 519

def setupTextProgress(iParentWindow, iText, iParameters = {}, &iCodeToExecute)
  showModal(TextProgressDialog, iParentWindow, iCodeToExecute, iText, iParameters) do |iModalResult, iDialog|
    # Nothing to do
  end
end

#showModal(iDialogClass, iParentWindow, *iParameters) {|lModalResult, lDialog| ... } ⇒ Object

Display a dialog in modal mode, ensuring it is destroyed afterwards.

Parameters

  • iDialogClass (class): Class of the dialog to display

  • iParentWindow (Wx::Window): Parent window (can be nil)

  • iParameters (…): List of parameters to give the constructor

  • CodeBlock: The code called once the dialog has been displayed and modally closed

    • iModalResult (Integer): Modal result

    • iDialog (Wx::Dialog): The dialog

Yields:

  • (lModalResult, lDialog) 


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# File 'lib/rUtilAnts/GUI.rb', line 408

def showModal(iDialogClass, iParentWindow, *iParameters)
  # If the parent is nil, we fall into a buggy behaviour in the case of GC enabled:
  # * If we destroy the window after show_modal, random core dumps occur in the application
  # * If not, the application can't exit normally
  # Therefore, in case of nil, we assign the top window as the parent.
  # Sometimes, there is no top_window. So we'll stick with nil.
  lParentWindow = iParentWindow
  if (lParentWindow == nil)
    lParentWindow = Wx.get_app.get_top_window
  end
  lDialog = iDialogClass.new(lParentWindow, *iParameters)
  lDialog.centre(Wx::CENTRE_ON_SCREEN|Wx::BOTH)
  lModalResult = lDialog.show_modal
  yield(lModalResult, lDialog)
  # If we destroy windows having parents, we get SegFaults during execution when mouse hovers some toolbar icons and moves (except if we disable GC: in this case it works perfectly fine, but consumes tons of memory).
  # If we don't destroy, we got ObjectPreviouslyDeleted exceptions on exit with wxRuby 2.0.0 (seems to have disappeared in 2.0.1).
  # TODO (wxRuby): Correct bug on Tray before enabling GC and find the good solution for modal destruction.
  if (lParentWindow == nil)
    lDialog.destroy
  end
end