diff options
Diffstat (limited to 'Area.py')
| -rw-r--r-- | Area.py | 108 |
1 files changed, 97 insertions, 11 deletions
@@ -53,11 +53,11 @@ Roseli de Deus Lopes (roseli@lsi.usp.br) """ -import pygtk -pygtk.require('2.0') -import gtk -import sys, gobject, socket -from gtk import gdk +# import pygtk +# pygtk.require('2.0') +import gtk, gobject, logging +# import sys, socket +# from gtk import gdk import math import pango from fill import * @@ -68,6 +68,15 @@ WIDTH = 800 HEIGHT = 600 class Area(gtk.DrawingArea): + + __gsignals__ = { + 'undo' : (gobject.SIGNAL_ACTION, gobject.TYPE_NONE, ([])), + 'redo' : (gobject.SIGNAL_ACTION, gobject.TYPE_NONE, ([])), + #TODO: these signals still not used. +# 'copy' : (gobject.SIGNAL_ACTION, gobject.TYPE_NONE, ([])), +# 'selected' : (gobject.SIGNAL_ACTION, gobject.TYPE_NONE, ([])), + } + def __init__(self, janela): """ Initialize the object from class Area which is derived from gtk.DrawingArea. @@ -76,6 +85,8 @@ class Area(gtk.DrawingArea): janela -- the parent window """ + logging.debug('Area.__init__(self, janela)') + gtk.DrawingArea.__init__(self) self.set_size_request(WIDTH, HEIGHT) self.set_events(gtk.gdk.POINTER_MOTION_MASK | @@ -123,8 +134,6 @@ class Area(gtk.DrawingArea): self.eraser_shape = 'circle' self.font = pango.FontDescription('Sans 9') - #self.mensagem = Mensagens(self) - #self.mensagem.criaConexao() #start of UNDO and REDO self.first_undo = True @@ -144,6 +153,8 @@ class Area(gtk.DrawingArea): event -- GdkEvent """ + logging.debug('Area.configure_event(self, widget, event)') + win = widget.window width = win.get_geometry()[2] height = win.get_geometry()[3] @@ -176,9 +187,13 @@ class Area(gtk.DrawingArea): self.gc_selection1 = widget.window.new_gc() #this make another white line out of the black line self.gc_selection1.set_line_attributes(1, gtk.gdk.LINE_ON_OFF_DASH, gtk.gdk.CAP_ROUND, gtk.gdk.JOIN_ROUND) self.gc_selection1.set_foreground(white) - print 'configure event' + self.enableUndo(widget) + # forcing self.undo_times to zero; self.enableUndo() increases it + # wrongly at this point... bad hacking, I know. + #self.undo_times = 0 + #self.emit('undo') return True @@ -191,6 +206,8 @@ class Area(gtk.DrawingArea): size -- """ + #logging.debug('Area.configure_line(self, size)') + self.line_size = size self.gc_line.set_line_attributes(size, gtk.gdk.LINE_SOLID, gtk.gdk.CAP_ROUND, gtk.gdk.JOIN_ROUND) @@ -202,7 +219,9 @@ class Area(gtk.DrawingArea): widget -- the Area object (GtkDrawingArea) event -- GdkEvent - """ + """ + #logging.debug('Area.expose(self, widget, event)') + area = event.area if self.desenha: if self.selmove : @@ -434,6 +453,8 @@ class Area(gtk.DrawingArea): self -- the Area object (GtkDrawingArea) """ + logging.debug('Area.undo(self)') + if self.first_undo:#if is the first time you click on UNDO self.undo_times -= 1 @@ -459,7 +480,16 @@ class Area(gtk.DrawingArea): if self.tool == 'polygon': self.polygon_start = True #start the polygon again - + # emits 'undo' and 'redo' signals only in case of first action, + # (first undo or first redo) or no actions available + # FIXME: this way, things work strangely; emiting signals everytime +# if self.undo_times <= 1: +# self.emit('undo') +# if self.redo_times <= 1: +# self.emit('redo') + self.emit('undo') + self.emit('redo') + def redo(self): """Redo the last undo operation. @@ -467,6 +497,8 @@ class Area(gtk.DrawingArea): self -- the Area object (GtkDrawingArea) """ + logging.debug('Area.redo(self)') + #print "REDO no.%d" %(self.redo_times) if (self.redo_times>0): self.redo_times -= 1 @@ -479,7 +511,16 @@ class Area(gtk.DrawingArea): print "Can't draw" self.undo_times-=1 self.queue_draw() - + + # emits 'undo' and 'redo' signals only in case of first action, + # (first undo or first redo) or no actions available + # FIXME: this way, things work strangely; emiting signals everytime +# if self.undo_times <= 1: +# self.emit('undo') +# if self.redo_times <= 1: +# self.emit('redo') + self.emit('undo') + self.emit('redo') def enableUndo(self,widget): """Keep the last change in a list for Undo/Redo commands. @@ -489,6 +530,8 @@ class Area(gtk.DrawingArea): widget -- the Area object (GtkDrawingArea) """ + logging.debug('Area.enableUndo(self,widget)') + if self.undo_surf: self.undo_times += 1 @@ -506,9 +549,22 @@ class Area(gtk.DrawingArea): self.undo_times-=1 #print "estourou" + # emits 'undo' and 'redo' signals only in case of first action, + # (first undo or first redo) or no actions available + # FIXME: this way, things work strangely; emiting signals everytime +# if self.undo_times <= 1: +# self.emit('undo') +# if self.redo_times <= 1: +# self.emit('redo') + self.emit('undo') + self.emit('redo') + + def copy(self): """ Copy Image. When the tool selection is working make the change the copy of selectioned area""" + logging.debug('Area.copy(self)') + if self.selmove: if self.sx > self.oldx: @@ -538,6 +594,8 @@ class Area(gtk.DrawingArea): def past(self): """ Past image. Past image that is in pixmap_copy""" + logging.debug('Area.past(self)') + if self.pixmap_copy != None : @@ -570,6 +628,8 @@ class Area(gtk.DrawingArea): color -- a gdk.Color object """ + logging.debug('Area._set_fill_color(self, color)') + self.gc.set_foreground(color) @@ -581,6 +641,7 @@ class Area(gtk.DrawingArea): color -- a gdk.Color object """ + logging.debug('Area._set_stroke_color(self, color)') self.gc_line.set_foreground(color) self.gc_line.set_line_attributes(1, gtk.gdk.LINE_ON_OFF_DASH, gtk.gdk.CAP_ROUND, gtk.gdk.JOIN_ROUND) @@ -594,6 +655,8 @@ class Area(gtk.DrawingArea): self -- the Area object (GtkDrawingArea) """ + logging.debug('Area._set_grayscale(self,widget)') + pix = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, WIDTH, HEIGHT) pix_ = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, WIDTH, HEIGHT) pix.get_from_drawable(self.pixmap, gtk.gdk.colormap_get_system(), 0, 0, 0, 0, WIDTH, HEIGHT) @@ -612,6 +675,8 @@ class Area(gtk.DrawingArea): self -- the Area object (GtkDrawingArea) """ + logging.debug('Area._rotate_left(self)') + pix = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, WIDTH, HEIGHT) pix_ = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, WIDTH, HEIGHT) pix.get_from_drawable(self.pixmap, gtk.gdk.colormap_get_system(), 0, 0, 0, 0, -1, -1) @@ -619,4 +684,25 @@ class Area(gtk.DrawingArea): self.pixmap.draw_pixbuf(self.gc, pix_, 0, 0, 0, 0, width=-1, height=-1, dither=gtk.gdk.RGB_DITHER_NORMAL, x_dither=0, y_dither=0) self.queue_draw() + def can_undo(self): + ''' + Indicate if is there some action to undo + ''' + logging.debug('Area.can_undo(self)') + + if self.undo_times < 1: + return False + else: + return True + + def can_redo(self): + ''' + Indicate if is there some action to redo + ''' + logging.debug('Area.can_redo(self)') + + if self.redo_times < 1: + return False + else: + return True |