diff --git a/2D_Slider/tags/0.2/doc/2d_slider-screenshot-0.1.jpg b/2D_Slider/tags/0.2/doc/2d_slider-screenshot-0.1.jpg new file mode 100644 index 0000000..73447eb Binary files /dev/null and b/2D_Slider/tags/0.2/doc/2d_slider-screenshot-0.1.jpg differ diff --git a/2D_Slider/tags/0.2/src/COPYING b/2D_Slider/tags/0.2/src/COPYING new file mode 100644 index 0000000..d60c31a --- /dev/null +++ b/2D_Slider/tags/0.2/src/COPYING @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/2D_Slider/tags/0.2/src/point.png b/2D_Slider/tags/0.2/src/point.png new file mode 100644 index 0000000..704f91d Binary files /dev/null and b/2D_Slider/tags/0.2/src/point.png differ diff --git a/2D_Slider/tags/0.2/src/point_inv.png b/2D_Slider/tags/0.2/src/point_inv.png new file mode 100644 index 0000000..e44bc86 Binary files /dev/null and b/2D_Slider/tags/0.2/src/point_inv.png differ diff --git a/2D_Slider/tags/0.2/src/slider_2d.py b/2D_Slider/tags/0.2/src/slider_2d.py new file mode 100644 index 0000000..d484ff5 --- /dev/null +++ b/2D_Slider/tags/0.2/src/slider_2d.py @@ -0,0 +1,361 @@ +""" + * 2d_slider.py + * widget to allow for 2D selection of values + * + * (C) 2008 by Kristian Mueller + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +""" + +import os +import gtk + +IMAGE_DIRECTORY = os.path.join(os.path.realpath(os.path.curdir), "./") +POINT_IMAGE = os.path.join(IMAGE_DIRECTORY, "point.png") +POINT_INV_IMAGE = os.path.join(IMAGE_DIRECTORY, "point_inv.png") +IMAGE_SIZE_X = 10 +IMAGE_SIZE_Y = 10 + + +class slider_2d(gtk.HBox): + """ + Widget to allow for two dimensional selection of values + """ + + def __init__(self, x_range = (0, 10), y_range = (0, 10), + bg_color = "#222222", fg_color = "#555566"): + gtk.HBox.__init__(self, False, 0) + + self.x_range = x_range + self.y_range = y_range + self.x_resolution = x_range[1] - x_range[0] + self.y_resolution = y_range[1] - y_range[0] + self.bg_color = bg_color + self.fg_color = fg_color + + self.mark_color = "#AAAAAA" + self.hover_color = "#555588" + + self.x_value = int(x_range[1] - x_range[0] / 2) + self.y_value = int(x_range[1] - x_range[0] / 2) + self.mouse_x_position = -1 + self.mouse_y_position = -1 + self.clicked = False + + self.area = gtk.DrawingArea() + # self.area.set_size_request(400, 300) + style = self.area.get_style() + self.gc = style.fg_gc[gtk.STATE_NORMAL] + self.area.set_events(gtk.gdk.POINTER_MOTION_MASK | + gtk.gdk.POINTER_MOTION_HINT_MASK ) + self.area.add_events(gtk.gdk.BUTTON_MOTION_MASK | \ + gtk.gdk.BUTTON_PRESS_MASK | \ + gtk.gdk.BUTTON_RELEASE_MASK) + self.area.connect("expose-event", self.area_expose_cb) + self.area.connect("button-press-event", self.area_click_cb) + self.area.connect("button-release-event", self.area_unclick_cb) + self.area.connect("motion-notify-event", self.area_mousemove_cb) + + self.x_value_changed_callback = 0 + self.y_value_changed_callback = 0 + + # define Horizontal and Vertical Rulers + self.hruler = gtk.HRuler() + self.vruler = gtk.VRuler() + self.hruler.set_range(x_range[0], x_range[1], x_range[0], x_range[1]) + self.vruler.set_range(y_range[0], y_range[1], y_range[0], y_range[1]) + + def motion_notify(ruler, event): + return ruler.emit("motion_notify_event", event) + + self.area.connect_object("motion_notify_event", motion_notify, + self.hruler) + self.area.connect_object("motion_notify_event", motion_notify, + self.vruler) + + def size_allocate_cb(wid, allocation): + x, y, width, height = allocation + lower, upper, position, max_size = self.hruler.get_range() + self.hruler.set_range(lower, self.x_resolution, position, max_size) + lower, upper, position, max_size = self.vruler.get_range() + self.vruler.set_range(lower, self.y_resolution, position, max_size) + self.width = width + self.height = height + self.area.connect('size-allocate', size_allocate_cb) + + + self.table = gtk.Table(2,2) + self.table.attach(self.hruler, 1, 2, 0, 1, yoptions=0) + self.table.attach(self.vruler, 0, 1, 1, 2, xoptions=0) + self.table.attach(self.area, 1, 2, 1, 2) + + self.add(self.table) + + + def connect(self, event_name, callback): + if event_name == "x_value_changed_event": + self.x_value_changed_callback = callback + elif event_name == "y_value_changed_event": + self.y_value_changed_callback = callback + else: + super(slider_2d, self).connect(event_name, callback) + + + ############################################################################ + ## callbacks to draw 2D Slider ############################################# + ############################################################################ + def area_expose_cb(self, area, event): + self.redraw() + + def area_click_cb(self, area, event): + self.clicked = True + self.put_value_point(area) + + def area_unclick_cb(self, area, event): + self.clicked = False + self.put_value_point(area) + + def area_mousemove_cb(self, area, event): + pos = area.get_pointer() + + x_max = self.width * 1.0 -1 + y_max = self.height * 1.0 -1 + x_spacing = x_max / self.x_resolution + y_spacing = y_max / self.y_resolution + + # get position of point in grid + x = int((pos[0] + x_spacing/2) / x_spacing) + y = int((pos[1] + y_spacing/2) / y_spacing) + + if self.mouse_x_position != x or self.mouse_y_position != y: + self.redraw_area(self.mouse_x_position, self.mouse_y_position) + self.mouse_x_position = x + self.mouse_y_position = y + self.show_inv_point(x, y) + + if self.clicked: + self.put_value_point(area) + + + def put_value_point(self, area): + """ + actually setting a new value + """ + pos = area.get_pointer() + + x_max = self.width * 1.0 -1 + y_max = self.height * 1.0 -1 + x_spacing = x_max / self.x_resolution + y_spacing = y_max / self.y_resolution + + # get position of point in grid + x = int((pos[0] + x_spacing/2) / x_spacing) + y = int((pos[1] + y_spacing/2) / y_spacing) + + if (self.x_value != x or self.y_value != y) \ + and x in range(self.x_range[0], self.x_range[1]+1)\ + and y in range(self.y_range[0], self.y_range[1]+1): + backup_x = self.x_value + backup_y = self.y_value + self.x_value = x + self.y_value = y + self.redraw_area(backup_x, backup_y) + self.show_point(self.x_value, self.y_value) + + # here we call the callbacks! + if backup_x != self.x_value: + self.x_value_changed_callback(self.x_value) + if backup_y != self.y_value: + self.y_value_changed_callback(self.y_value) + + + ############################################################################ + ## actually writing to our area ############################################ + ############################################################################ + + def redraw(self): + """ + writing all elements to drawing area + (clears screen, draws grid, draws value) + """ + + # get gc + style = self.area.get_style() + self.gc = style.fg_gc[gtk.STATE_NORMAL] + + # clear screen + if self.gc: + fg_backup = self.gc.foreground + self.gc.foreground = self.area.window.get_colormap()\ + .alloc_color(self.bg_color) + # 1) clear screen + self.area.window.draw_rectangle(self.gc, True, 0, 0, -1, -1) + self.gc.foreground = fg_backup + self.draw_grid() + self.show_point(self.x_value, self.y_value) + + + def draw_grid(self): + backup_fb = self.gc.foreground + try: + self.set_color(self.fg_color) + self.gc.set_line_attributes(1, \ + gtk.gdk.LINE_SOLID, gtk.gdk.CAP_ROUND, \ + gtk.gdk.CAP_ROUND) + # 2) draw grid + x_max = self.width * 1.0 -1 + y_max = self.height * 1.0 -1 + x_spacing = x_max / self.x_resolution + y_spacing = y_max / self.y_resolution + for i in range(self.x_resolution+2): + if i == self.x_value: + self.set_color(self.mark_color) + self.area.window.draw_line(self.gc, int(x_spacing * i),\ + 0, int(x_spacing * i), int(y_max)) + self.set_color(self.fg_color) + elif i == self.mouse_x_position: + self.set_color(self.hover_color) + self.area.window.draw_line(self.gc, int(x_spacing * i),\ + 0, int(x_spacing * i), int(y_max)) + self.set_color(self.fg_color) + else: + self.area.window.draw_line(self.gc, int(x_spacing * i),\ + 0, int(x_spacing * i), int(y_max)) + + for i in range(self.y_resolution+2): + if i == self.y_value: + self.set_color(self.mark_color) + self.area.window.draw_line(self.gc, 0, \ + int(y_spacing * i), int(x_max), int(y_spacing * i)) + self.set_color(self.fg_color) + elif i == self.mouse_y_position: + self.set_color(self.hover_color) + self.area.window.draw_line(self.gc, 0, \ + int(y_spacing * i), int(x_max), int(y_spacing * i)) + self.set_color(self.fg_color) + else: + self.area.window.draw_line(self.gc, 0, \ + int(y_spacing * i), int(x_max), int(y_spacing * i)) + + # redraw hover (was overdrawn my other lines) + self.set_color(self.hover_color) + self.area.window.draw_line(self.gc, \ + int(x_spacing * self.mouse_x_position),\ + 0, int(x_spacing * self.mouse_x_position), int(y_max)) + self.area.window.draw_line(self.gc, 0, \ + int(y_spacing * self.mouse_y_position), int(x_max), \ + int(y_spacing * self.mouse_y_position)) + + # redraw value (was overdrawn my other lines) + self.set_color(self.mark_color) + self.area.window.draw_line(self.gc, \ + int(x_spacing * self.x_value),\ + 0, int(x_spacing * self.x_value), int(y_max)) + self.area.window.draw_line(self.gc, 0, \ + int(y_spacing * self.y_value), int(x_max), \ + int(y_spacing * self.y_value)) + + finally: + self.gc.foreground = backup_fb + + def set_color(self, color_string): + self.gc.foreground = self.area.window.get_colormap()\ + .alloc_color(color_string) + + + def draw_pixmap(self, x, y, img): + """ + loads and draws image to our area + """ + + pixmap, mask = gtk.gdk.pixmap_create_from_xpm(self.area.window, \ + self.area.window.get_colormap().alloc_color(self.bg_color), img) + + self.area.window.draw_drawable(self.gc, pixmap, 0, 0, \ + int(x-5), int(y-5), -1, -1) + + def show_point(self, x_value, y_value): + """ + shows the value-marker at a specific place + """ + x_max = self.width * 1.0 -1 + y_max = self.height * 1.0 -1 + x_spacing = x_max / self.x_resolution + y_spacing = y_max / self.y_resolution + + self.draw_pixmap(x_spacing * x_value, y_spacing * y_value, POINT_IMAGE) + + def show_inv_point(self, x_value, y_value): + """ + shows the inverted value-marker (mouse indicator) at a specific place + """ + x_max = self.width * 1.0 -1 + y_max = self.height * 1.0 -1 + x_spacing = x_max / self.x_resolution + y_spacing = y_max / self.y_resolution + + self.draw_grid() + self.show_point(self.x_value, self.y_value) + self.draw_pixmap(x_spacing * int(x_value), y_spacing * int(y_value),\ + POINT_INV_IMAGE) + + def redraw_area(self, x_value, y_value): + """ + redraws the area of a value marker, without clearing out the whole + screen - to prevent flickering + """ + + x_max = self.width * 1.0 -1 + y_max = self.height * 1.0 -1 + x_spacing = x_max / self.x_resolution + y_spacing = y_max / self.y_resolution + + start_x = int((x_spacing * x_value) - (IMAGE_SIZE_X / 2)) + start_y = int((y_spacing * y_value) - (IMAGE_SIZE_Y / 2)) + + fg_backup = self.gc.foreground + self.gc.foreground = self.area.window.get_colormap()\ + .alloc_color(self.bg_color) + self.area.window.draw_rectangle(self.gc, True, \ + start_x, start_y, IMAGE_SIZE_X, IMAGE_SIZE_Y) + self.gc.foreground = fg_backup + + + # easyest way for now: redraw all lines + self.draw_grid() + + """ + backup_fb = self.gc.foreground + try: + self.gc.foreground = self.area.window.get_colormap()\ + .alloc_color(self.fg_color) + self.gc.set_line_attributes(1, \ + gtk.gdk.LINE_SOLID, gtk.gdk.CAP_ROUND, \ + gtk.gdk.CAP_ROUND) + + # 2) draw grid + x_max = self.width * 1.0 -1 + y_max = self.height * 1.0 -1 + x_spacing = x_max / self.x_resolution + y_spacing = y_max / self.y_resolution + for i in range(self.x_resolution+2): + self.area.window.draw_line(self.gc, int(x_spacing * i), 0, int(x_spacing * i), int(y_max)) + for i in range(self.y_resolution+2): + self.area.window.draw_line(self.gc, 0, int(y_spacing * i), int(x_max), int(y_spacing * i)) + finally: + self.gc.foreground = backup_fb + """ + self.show_point(self.x_value, self.y_value) diff --git a/2D_Slider/tags/0.2/src/slider_2d_test.py b/2D_Slider/tags/0.2/src/slider_2d_test.py new file mode 100644 index 0000000..23bc08b --- /dev/null +++ b/2D_Slider/tags/0.2/src/slider_2d_test.py @@ -0,0 +1,63 @@ +""" + * 2d_slider_test.py + * 2D slider widget - test program + * + * (C) 2008 by Kristian Mueller + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +""" + +import gtk +import slider_2d + +def delete_event(widget, event, data=None): + print("closing") + gtk.main_quit() + +def x_changed_callback(new_x_value): + value_x_label.set_text("Value X: %s" % new_x_value) + +def y_changed_callback(new_y_value): + value_y_label.set_text("Value Y: %s" % new_y_value) + + +## main program ## +window = gtk.Window(gtk.WINDOW_TOPLEVEL) +window.set_title("2D Slider Test Program") +window.connect("delete_event", delete_event) +window.set_border_width(0) +window.set_default_size(450, 200) + +value_x_label = gtk.Label("Value X: none") +value_y_label = gtk.Label("Value Y: none") + +init_box = gtk.VBox() +init_box.set_border_width(10) + +slider_2d = slider_2d.slider_2d(\ + x_range = (0, 30), y_range = (0, 10)) + +slider_2d.connect('x_value_changed_event', x_changed_callback) +slider_2d.connect('y_value_changed_event', y_changed_callback) + +init_box.pack_start(slider_2d, True, True, 0) +init_box.pack_start(value_x_label, False, False, 0) +init_box.pack_start(value_y_label, False, False, 0) +init_box.show_all() +window.add(init_box) +window.show_all() + +gtk.main()