# Unicode char searcher
# Copyright 2003 Nathan Hurst
# Licensed under GPL

import pygtk
pygtk.require('2.0')
import gtk
import pango

def draw_pango_string(widget, gc, s, x, y):
    context = widget.get_pango_context()
    
    pfd = pango.FontDescription("Sans 10")
    
    context.set_font_description(pfd)
    
    pl = pango.Layout(context);
    pl.set_width(1024*1000);
    pl.set_markup(s);
    
    gtk.gdk.Drawable.draw_layout(widget.window, gc,
                    x, y,
                    pl);


window = gtk.Window()

vbox = gtk.VBox(gtk.FALSE, 0)

current_x,current_y = 0,0

gridspace = 16

def redraw_da(widget, event):
    xsize,ysize = widget.get_allocation().width,widget.get_allocation().height
    cx = xsize /2
    cy = ysize/2
    drawable = widget.window
    black_gc = widget.get_style().black_gc

    #for i in range(xsize/gridspace):
    #    gtk.gdk.Drawable.draw_line(drawable,
    #                               black_gc,
    #                               i*gridspace, 0,
    #                               i*gridspace, ysize)
    #for i in range(ysize/gridspace):
    #    gtk.gdk.Drawable.draw_line(drawable,
    #                               black_gc,
    #                               0, i*gridspace,
    #                               ysize, i*gridspace)
    global notebook,baselist
    base = baselist[notebook.get_current_page()]
    for i in range(xsize/gridspace):
        for j in range(ysize/gridspace):
            c = i + j*(xsize/gridspace) + base
            if(c >= 0x20):
                draw_pango_string(widget, black_gc,
                                  "&#%d;" % c, i*gridspace,j*gridspace)

    global current_x,current_y
    gtk.gdk.Drawable.draw_rectangle(drawable,
                                    black_gc,
                                    0,
                                    current_x*gridspace, current_y*gridspace,
                                    gridspace, gridspace)
    import unicodedata
    c = current_x + current_y*int(xsize/gridspace) + base
    name = ""
    try:
        name = unicodedata.name(unichr(c))
    except: pass
    label.set_text("%d (0x%x) : %s" % (c, c, name))

notebook = gtk.Notebook()
notebook.set_scrollable(1)
baselist = range(0,0x1400, 0x100) + [0x1680,0x2000]
for i in baselist:
    notebook.append_page(gtk.DrawingArea(),gtk.Label("0x%x" % i))

vbox.pack_start(notebook, 0, 0, 0)

da = gtk.DrawingArea()
vbox.pack_start(da, 1, 1, 0)
da.set_size_request(256,256)
da.connect('expose-event', redraw_da)
label = gtk.Label('')
vbox.pack_start(label, 0, 0, 0)

def mouse_click(widget,event):
    xsize,ysize = widget.get_allocation().width,widget.get_allocation().height

def drag_motion(widget, event):
    xsize,ysize = widget.get_allocation().width,widget.get_allocation().height
    global current_x, current_y
    current_x,current_y = int(event.x/gridspace), int(event.y/gridspace)
    widget.queue_draw()
    

da.add_events(gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.POINTER_MOTION_MASK )
da.connect("button-press-event", mouse_click)
da.connect("motion-notify-event", drag_motion)

window.add(vbox)

window.connect('destroy', lambda win: gtk.main_quit())
window.show_all()

gtk.mainloop()