#!/usr/bin/env python # -*- coding:utf-8 -*- # example drawingzone_dessin.py import pygtk pygtk.require('2.0') import gtk import operator import time import string class ExempleZoneDessin: def __init__(self): fenetre = gtk.Window(gtk.WINDOW_TOPLEVEL) fenetre.set_title("Exemple de zone de dessin") fenetre.connect("destroy", lambda w: gtk.main_quit()) self.zone_dessin = gtk.DrawingArea() self.zone_dessin.set_size_request(400, 300) self.stylepango = self.zone_dessin.create_pango_layout("") self.fenetre_defil = gtk.ScrolledWindow() self.fenetre_defil.add_with_viewport(self.zone_dessin) self.table = gtk.Table(2,2) self.reglehoriz = gtk.HRuler() self.reglevert = gtk.VRuler() self.reglehoriz.set_range(0, 400, 0, 400) self.reglevert.set_range(0, 300, 0, 300) self.table.attach(self.reglehoriz, 1, 2, 0, 1, yoptions=0) self.table.attach(self.reglevert, 0, 1, 1, 2, xoptions=0) self.table.attach(self.fenetre_defil, 1, 2, 1, 2) fenetre.add(self.table) self.zone_dessin.set_events(gtk.gdk.POINTER_MOTION_MASK | gtk.gdk.POINTER_MOTION_HINT_MASK ) self.zone_dessin.connect("expose-event", self.rappel_zone_dessin_expose) def a_bouge(ruler, event): return ruler.emit("motion_notify_event", event) self.zone_dessin.connect_object("motion_notify_event", a_bouge, self.reglehoriz) self.zone_dessin.connect_object("motion_notify_event", a_bouge, self.reglevert) self.ajuste_hor = self.fenetre_defil.get_hadjustment() self.ajuste_ver = self.fenetre_defil.get_vadjustment() def rappel_valeur(ajuste, regle, horiz): if horiz: span = self.fenetre_defil.get_allocation()[3] else: span = self.fenetre_defil.get_allocation()[2] l,u,p,m = regle.get_range() v = ajuste.value regle.set_range(v, v+span, p, m) while gtk.events_pending(): gtk.main_iteration() self.ajuste_hor.connect('value-changed', rappel_valeur, self.reglehoriz, True) self.ajuste_ver.connect('value-changed', rappel_valeur, self.reglevert, False) def rappel_taille_fixee(wid, allocation): x, y, w, h = allocation l,u,p,m = self.reglehoriz.get_range() m = max(m, w) self.reglehoriz.set_range(l, l+w, p, m) l,u,p,m = self.reglevert.get_range() m = max(m, h) self.reglevert.set_range(l, l+h, p, m) self.fenetre_defil.connect('size-allocate', rappel_taille_fixee) self.zone_dessin.show() self.reglehoriz.show() self.reglevert.show() self.fenetre_defil.show() self.table.show() fenetre.show() def rappel_zone_dessin_expose(self, zone_dessin, event): self.style = self.zone_dessin.get_style() self.contexte_graph = self.style.fg_gc[gtk.STATE_NORMAL] self.trace_point(10,10) self.trace_points(110, 10) self.trace_ligne(210, 10) self.trace_lignes(310, 10) self.trace_segments(10, 100) self.trace_rectangles(110, 100) self.trace_arcs(210, 100) self.trace_pixmap(310, 100) self.trace_polygone(10, 200) self.trace_image_rgb(110, 200) return True def trace_point(self, x, y): self.zone_dessin.window.draw_point(self.contexte_graph, x+30, y+30) self.stylepango.set_text("Point") self.zone_dessin.window.draw_layout(self.contexte_graph, x+5, y+50, self.stylepango) return def trace_points(self, x, y): points = [(x+10,y+10), (x+10,y), (x+40,y+30), (x+30,y+10), (x+50,y+10)] self.zone_dessin.window.draw_points(self.contexte_graph, points) self.stylepango.set_text("Points") self.zone_dessin.window.draw_layout(self.contexte_graph, x+5, y+50, self.stylepango) return def trace_ligne(self, x, y): self.zone_dessin.window.draw_line(self.contexte_graph, x+10, y+10, x+20, y+30) self.stylepango.set_text("Ligne") self.zone_dessin.window.draw_layout(self.contexte_graph, x+5, y+50, self.stylepango) return def trace_lignes(self, x, y): points = [(x+10,y+10), (x+10,y), (x+40,y+30), (x+30,y+10), (x+50,y+10)] self.zone_dessin.window.draw_lines(self.contexte_graph, points) self.stylepango.set_text("Lignes") self.zone_dessin.window.draw_layout(self.contexte_graph, x+5, y+50, self.stylepango) return def trace_segments(self, x, y): segments = ((x+20,y+10, x+20,y+70), (x+60,y+10, x+60,y+70), (x+10,y+30 , x+70,y+30), (x+10, y+50 , x+70, y+50)) self.zone_dessin.window.draw_segments(self.contexte_graph, segments) self.stylepango.set_text("Segments") self.zone_dessin.window.draw_layout(self.contexte_graph, x+5, y+80, self.stylepango) return def trace_rectangles(self, x, y): self.zone_dessin.window.draw_rectangle(self.contexte_graph, False, x, y, 80, 70) self.zone_dessin.window.draw_rectangle(self.contexte_graph, True, x+10, y+10, 20, 20) self.zone_dessin.window.draw_rectangle(self.contexte_graph, True, x+50, y+10, 20, 20) self.zone_dessin.window.draw_rectangle(self.contexte_graph, True, x+20, y+50, 40, 10) self.stylepango.set_text("Rectangles") self.zone_dessin.window.draw_layout(self.contexte_graph, x+5, y+80, self.stylepango) return def trace_arcs(self, x, y): self.zone_dessin.window.draw_arc(self.contexte_graph, False, x+10, y, 70, 70, 0, 360*64) self.zone_dessin.window.draw_arc(self.contexte_graph, True, x+30, y+20, 10, 10, 0, 360*64) self.zone_dessin.window.draw_arc(self.contexte_graph, True, x+50, y+20, 10, 10, 0, 360*64) self.zone_dessin.window.draw_arc(self.contexte_graph, True, x+30, y+10, 30, 50, 210*64, 120*64) self.stylepango.set_text("Arcs") self.zone_dessin.window.draw_layout(self.contexte_graph, x+30, y+80, self.stylepango) return def trace_pixmap(self, x, y): pixmap, mask = gtk.gdk.pixmap_create_from_xpm( self.zone_dessin.window, self.style.bg[gtk.STATE_NORMAL], "gtk.xpm") self.zone_dessin.window.draw_drawable(self.contexte_graph, pixmap, 0, 0, x+15, y+25, -1, -1) self.stylepango.set_text("Pixmap") self.zone_dessin.window.draw_layout(self.contexte_graph, x+5, y+80, self.stylepango) return def trace_polygone(self, x, y): points = [(x+10,y+60), (x+10,y+20), (x+40,y+70), (x+30,y+30), (x+50,y+40)] self.zone_dessin.window.draw_polygon(self.contexte_graph, True, points) self.stylepango.set_text("Polygone") self.zone_dessin.window.draw_layout(self.contexte_graph, x+5, y+80, self.stylepango) return def trace_image_rgb(self, x, y): b = 80*3*80*['\0'] for i in range(80): for j in range(80): b[3*80*i+3*j] = chr(255-3*i) b[3*80*i+3*j+1] = chr(255-3*abs(i-j)) b[3*80*i+3*j+2] = chr(255-3*j) buff = string.join(b, '') self.zone_dessin.window.draw_rgb_image(self.contexte_graph, x, y, 80, 80, gtk.gdk.RGB_DITHER_NONE, buff, 80*3) self.stylepango.set_text("Image RGB") self.zone_dessin.window.draw_layout(self.contexte_graph, x+5, y+80, self.stylepango) return def main(): gtk.main() return 0 if __name__ == "__main__": ExempleZoneDessin() main()