def __init__(self):
gtk.Window.__init__(self)
self.set_title("Legend: Empty")
self.set_resizable(True)
self.set_default_size(300, 300)
self.layer = None
self.teardown_id = None
self.changed_id = None
self.resizing = False
self.resize_count = 0
self.viewarea = gview.GvViewArea()
back_color = pref('legend-background-color', white)
self.viewarea.set_background_color(color_string_to_tuple(back_color))
self.shapes = gview.GvShapes()
self.shapes.set_name('Legend shapes')
self.vlayer = gview.GvShapesLayer(self.shapes)
self.vlayer.set_name('Legend layer')
self.viewarea.add_layer(self.vlayer)
self.add(self.viewarea)
self.connect('delete-event', self.close)
self.show_all()
self.changing_view_state = False
self.viewarea.connect('view-state-changed', self.view_state_cb)
if 'CIETMAP_HOME' in os.environ:
set_help_topic(self, _('cm-help-legend'))
def __init__(self):
GtkWindow.__init__(self)
self.layer = None
self.teardown_id = None
self.changed_id = None
self.resizing = FALSE
self.resize_count = 0
self.set_title('Legend: Empty')
self.set_policy(TRUE, TRUE, FALSE)
self.set_usize(300, 300)
self.viewarea = gview.GvViewArea()
back_color = gview.get_preference('legend-background-color')
if back_color is None:
back_color = (1.0, 1.0, 1.0, 1.0)
else:
back_color = color_string_to_tuple(back_color)
self.viewarea.set_background_color(back_color)
self.shapes = gview.GvShapes()
self.vlayer = gview.GvShapesLayer(self.shapes)
self.viewarea.add_layer(self.vlayer)
self.add(self.viewarea)
self.connect('delete-event', self.close)
self.show_all()
self.viewarea.fit_extents(0, self.viewarea.get_height(),
self.viewarea.get_width(),
-self.viewarea.get_height())
self.changing_view_state = 0
self.viewarea.connect('view-state-changed', self.view_state_cb)
def __init__(self):
GtkWindow.__init__(self)
self.layer = None
self.teardown_id = None
self.changed_id = None
self.resizing = FALSE
self.resize_count = 0
self.set_title('Legend: Empty')
self.set_policy(TRUE,TRUE,FALSE)
self.set_usize(300, 300)
self.viewarea = gview.GvViewArea()
back_color = gview.get_preference('legend-background-color')
if back_color is None:
back_color = (1.0, 1.0, 1.0, 1.0 )
else:
back_color = color_string_to_tuple(back_color)
self.viewarea.set_background_color( back_color )
self.shapes = gview.GvShapes()
self.vlayer = gview.GvShapesLayer(self.shapes)
self.viewarea.add_layer( self.vlayer )
self.add( self.viewarea )
self.connect( 'delete-event', self.close )
self.show_all()
self.viewarea.fit_extents(0,
self.viewarea.get_height(),
self.viewarea.get_width(),
-self.viewarea.get_height() )
self.changing_view_state = 0
self.viewarea.connect('view-state-changed', self.view_state_cb )
def prepare_legend(self):
if self.resizing:
return
class_cn = self.layer.get_property('Class_sn')
if class_cn:
self.Class_sn = int(class_cn)
#remove any existing shapes
self.shapes.delete_shapes(range(len(self.shapes)))
# get preferences
samp_x_size = pref('legend-sample-x-size', 20)
samp_y_size = pref('legend-sample-y-size', 20)
title_font = pref('legend-title-font','Serif 20')
title_font_color = pref('legend-title-font-color', black)
title_ogr_color = gv_to_ogr_color(color_string_to_tuple(title_font_color))
label_font = pref('legend-label-font','Serif 14')
label_font_color = pref('legend-label-font-color', black)
label_ogr_color = gv_to_ogr_color(color_string_to_tuple(label_font_color))
# utility layout for measuring text w/h
layout = pango.Layout(self.viewarea.get_pango_context())
try:
font = pango.FontDescription(title_font)
except:
font = pango.FontDescription('Serif 20')
layout.set_font_description(font)
#handle multi-line text for the title.
lines = self.cls.title.split('\\n')
layout.set_text(self.cls.title.replace('\\n', '\n'))
title_width, title_height = layout.get_pixel_size()
h = title_height/len(lines)
x_offset = 10 #start title 10 pixels in from left edge
col_offset = 30 #space columns apart
y_offset = 35 #start title 35 pixels down from top edge
max_height = 0
title_width += x_offset + 10
title_height += y_offset + 10
#handle large fonts in the sample text
try:
font = pango.FontDescription(label_font)
except:
# get a default font if preferred one
# can't be loaded.
font = pango.FontDescription('Serif 14')
layout.set_font_description(font)
layout.set_text(self.cls.name[0])
w,h = layout.get_pixel_size()
samp_offset = max(samp_y_size, h) + 10
cols = int(self.cls.count / 8)
samps = min(8, self.cls.count)
samp_height = samps * (samp_offset) + 10
samp_width = x_offset
for i in range(cols + 1):
idx = 8 * i
col_width = 0
while idx < self.cls.count and idx < 8 * (i + 1):
name = self.cls.name[idx]
layout.set_text(name)
width = samp_x_size + 20 + layout.get_pixel_size()[0]
col_width = max(col_width, width)
idx += 1
samp_width += (col_width + col_offset)
samp_width += 10
total_width = max(title_width, samp_width)
total_height = title_height + samp_height
#resize the window appropriately
self.resizing = True
x,y,width,height,bpp = self.window.get_geometry()
if width < total_width or height < total_height:
self.resize_count += 1
if self.resize_count < 2:
self.set_size_request(total_width, total_height)
self.resizing = False
for line in lines:
samp_text = gview.GvShape()
samp_text.add_node(x_offset, y_offset)
ogrfs = 'LABEL(c:%s,f:"%s",t:"%s")' % (title_ogr_color, title_font, line)
samp_text.set_property('_gv_ogrfs', ogrfs)
self.shapes.append(samp_text)
y_offset += h
txt = _('Legend')
line = lines[0]
if len(line) > 6 and line[:6] != txt and line[:6] != 'legend':
self.set_title( '%s: %s...' % (txt, line) )
else:
self.set_title(line + '...')
y_offset += 10
title_offset = y_offset
max_width = 0
max_height = 0
for class_id in range(self.cls.count):
color = self.cls.get_color(class_id)
symbol = self.cls.get_symbol(class_id)
scale = self.cls.get_scale(class_id)
name = self.cls.name[class_id]
if symbol:
samp = gview.GvShape(type=gview.GVSHAPE_POINT)
samp.set_node(x_offset+samp_x_size/2, y_offset+samp_y_size/2)
ogrfs_color = gv_to_ogr_color(color)
ogrfs = 'SYMBOL(id:%s,c:%s,s:%s)' % (symbol, ogrfs_color, scale/2)
samp.set_property('_gv_ogrfs', ogrfs)
else:
samp = gview.GvShape(type=gview.GVSHAPE_AREA)
samp.add_node(x_offset, y_offset)
samp.add_node(x_offset+samp_x_size, y_offset)
samp.add_node(x_offset+samp_x_size, y_offset+samp_y_size)
samp.add_node(x_offset, y_offset+samp_y_size)
samp.add_node(x_offset, y_offset)
color = '%f %f %f %f' % color
samp.set_property('_gv_color', color)
samp.set_property('_gv_fill_color', color)
self.shapes.append(samp)
samp_text = gview.GvShape()
samp_text.add_node(x_offset+samp_x_size+10, y_offset+17)
ogrfs = 'LABEL(c:%s,f:%s,t:%s)' % (label_ogr_color, label_font, name)
samp_text.set_property('_gv_ogrfs', ogrfs)
self.shapes.append(samp_text)
layout.set_text(name)
this_width = samp_x_size + 20 + layout.get_pixel_size()[0]
if max_width < this_width:
max_width = this_width
y_offset += samp_offset
if y_offset+samp_offset > self.viewarea.get_height():
max_height = max(max_height, y_offset + samp_offset)
y_offset = title_offset
x_offset += (col_offset + max_width)
max_width = 0
self.vlayer.display_change()
def prepare_legend(self):
if self.resizing:
return
if self.layer.get_property('Class_sn') is not None:
self.Class_sn = int(self.layer.get_property('Class_sn'))
#remove any existing shapes
self.shapes.delete_shapes(range(len(self.shapes)))
samp_x_size = gview.get_preference('legend-sample-x-size')
if samp_x_size is None:
samp_x_size = 20
else:
samp_x_size = int(samp_x_size)
samp_y_size = gview.get_preference('legend-sample-y-size')
if samp_y_size is None:
samp_y_size = 20
else:
samp_y_size = int(samp_y_size)
title_font = pgufont.XLFDFontSpec()
font_spec = gview.get_preference('legend-title-font')
if font_spec is None:
title_font.set_font_part('Family', 'times')
title_font.set_font_part('Pixel Size', '20')
else:
title_font.parse_font_spec(font_spec)
title_font_color = gview.get_preference('legend-title-font-color')
if title_font_color is None:
title_font_color = (0.0, 0.0, 0.0, 1.0)
else:
title_font_color = color_string_to_tuple(title_font_color)
title_ogr_color = gv_to_ogr_color(title_font_color)
label_font = pgufont.XLFDFontSpec()
font_spec = gview.get_preference('legend-label-font')
if font_spec is None:
label_font.set_font_part('Family', 'times')
label_font.set_font_part('Pixel Size', '14')
else:
label_font.parse_font_spec(font_spec)
label_font_color = gview.get_preference('legend-label-font-color')
if label_font_color is None:
label_font_color = (0.0, 0.0, 0.0, 1.0)
else:
label_font_color = color_string_to_tuple(label_font_color)
label_ogr_color = gv_to_ogr_color(label_font_color)
#handle large fonts in the sample text
try:
gdk_font = load_font(str(label_font))
except:
# get a default font if preferred one
# can't be loaded.
gdk_font = load_font('*')
h = gdk_font.height("Wj")
samp_offset = max(samp_y_size, h) + 10
#handle multi-line text for the title.
try:
gdk_title_font = load_font(str(title_font))
except:
gdk_title_font = load_font('*')
lines = string.split(self.classification.title, '\\n')
x_offset = 10 #start title 10 pixels in from left edge
col_offset = 30 #space columns apart
y_offset = 35 #start title 35 pixels down from top edge
title_width = 0
max_height = 0
#resize the window appropriately
title_height = y_offset
title_width = 0
for idx in range(len(lines)):
line = lines[idx]
title_height = title_height + gdk_title_font.height(line)
title_width = max(title_width, gdk_title_font.width(line))
title_height = title_height + 10
title_width = x_offset + title_width + 10
cols = int(self.classification.count / 8)
samps = min(8, self.classification.count)
samp_height = samps * (samp_offset) + 10
samp_width = x_offset
for i in range(cols + 1):
idx = 8 * i
col_width = 0
while idx < self.classification.count and idx < 8 * (i + 1):
name = self.classification.name[idx]
width = samp_x_size + 20 + gdk_font.width(name)
col_width = max(col_width, width)
idx = idx + 1
samp_width = samp_width + col_width + col_offset
samp_width = samp_width + 10
total_width = max(title_width, samp_width)
total_height = title_height + samp_height
self.resizing = TRUE
if (self.get_window().width < total_width) or \
(self.get_window().height < total_height):
self.resize_count = self.resize_count + 1
if self.resize_count < 2:
self.set_usize(total_width, total_height)
self.resizing = FALSE
for idx in range(len(lines)):
line = lines[idx]
w = gdk_title_font.width(line)
h = gdk_title_font.height(line)
title_width = max(title_width, w)
samp_text = gview.GvShape()
samp_text.add_node(x_offset, y_offset)
samp_text.set_property( '_gv_ogrfs',
'LABEL(c:' + title_ogr_color + \
',f:"' + str(title_font) + '",' \
+ 't:"' + line + '")' )
self.shapes.append(samp_text)
y_offset = y_offset + h
if ((len(lines[0]) > 6) and (lines[0][:6] != 'Legend')
and (lines[0][:6] != 'legend')):
self.set_title('Legend: ' + lines[0] + '...')
else:
self.set_title(lines[0] + '...')
y_offset = y_offset + 10
title_offset = y_offset
max_width = 0
max_height = 0
for class_id in range(self.classification.count):
color = self.classification.get_color(class_id)
symbol = self.classification.get_symbol(class_id)
scale = self.classification.get_scale(class_id)
if symbol is not None:
samp = gview.GvShape(type=gview.GVSHAPE_POINT)
samp.add_node(x_offset + (samp_x_size / 2),
y_offset + (samp_y_size / 2))
ogrfs_color = '#%02x%02x%02x%02x' % (
int(color[0] * 255.999), int(color[1] * 255.999),
int(color[2] * 255.999), int(color[3] * 255.999))
ogrfs = "SYMBOL(id:%s,c:%s,s:%s)" % (symbol, ogrfs_color,
scale)
samp.set_property("_gv_ogrfs", ogrfs)
else:
samp = gview.GvShape(type=gview.GVSHAPE_AREA)
samp.add_node(x_offset, y_offset)
samp.add_node(x_offset + samp_x_size, y_offset)
samp.add_node(x_offset + samp_x_size, y_offset + samp_y_size)
samp.add_node(x_offset, y_offset + samp_y_size)
samp.add_node(x_offset, y_offset)
color = '%f %f %f %f' % color
samp.set_property('_gv_color', color)
samp.set_property('_gv_fill_color', color)
self.shapes.append(samp)
name = self.classification.name[class_id]
samp_text = gview.GvShape()
samp_text.add_node(x_offset + samp_x_size + 10, y_offset + 17)
font = str(label_font)
samp_text.set_property( '_gv_ogrfs',
'LABEL(c:' + label_ogr_color + \
',f:"'+font+'",t:"'+name+'")' )
self.shapes.append(samp_text)
this_width = samp_x_size + 20 + gdk_font.width(name)
if max_width < this_width:
max_width = this_width
y_offset = y_offset + samp_offset
if y_offset + samp_offset > self.viewarea.get_height():
max_height = max(max_height, y_offset + samp_offset)
y_offset = title_offset
x_offset = x_offset + col_offset + max_width
max_width = 0
self.vlayer.changed()
def prepare_legend(self):
if self.resizing:
return
if self.layer.get_property('Class_sn') is not None:
self.Class_sn = int(self.layer.get_property('Class_sn'))
#remove any existing shapes
self.shapes.delete_shapes(range(len(self.shapes)))
samp_x_size = gview.get_preference('legend-sample-x-size')
if samp_x_size is None:
samp_x_size = 20
else:
samp_x_size = int(samp_x_size)
samp_y_size = gview.get_preference('legend-sample-y-size')
if samp_y_size is None:
samp_y_size = 20
else:
samp_y_size = int(samp_y_size)
title_font = pgufont.XLFDFontSpec()
font_spec = gview.get_preference('legend-title-font')
if font_spec is None:
title_font.set_font_part('Family', 'times')
title_font.set_font_part('Pixel Size', '20')
else:
title_font.parse_font_spec(font_spec)
title_font_color = gview.get_preference('legend-title-font-color')
if title_font_color is None:
title_font_color = (0.0, 0.0, 0.0, 1.0)
else:
title_font_color = color_string_to_tuple(title_font_color)
title_ogr_color = gv_to_ogr_color(title_font_color)
label_font = pgufont.XLFDFontSpec()
font_spec = gview.get_preference('legend-label-font')
if font_spec is None:
label_font.set_font_part('Family', 'times')
label_font.set_font_part('Pixel Size', '14')
else:
label_font.parse_font_spec(font_spec)
label_font_color = gview.get_preference('legend-label-font-color')
if label_font_color is None:
label_font_color = (0.0, 0.0, 0.0, 1.0)
else:
label_font_color = color_string_to_tuple(label_font_color)
label_ogr_color = gv_to_ogr_color(label_font_color)
#handle large fonts in the sample text
try:
gdk_font = load_font(str(label_font))
except:
# get a default font if preferred one
# can't be loaded.
gdk_font = load_font('*')
h = gdk_font.height("Wj")
samp_offset = max(samp_y_size, h) + 10
#handle multi-line text for the title.
try:
gdk_title_font = load_font(str(title_font))
except:
gdk_title_font = load_font('*')
lines = string.split(self.classification.title, '\\n')
x_offset = 10 #start title 10 pixels in from left edge
col_offset = 30 #space columns apart
y_offset = 35 #start title 35 pixels down from top edge
title_width = 0
max_height = 0
#resize the window appropriately
title_height = y_offset
title_width = 0
for idx in range(len(lines)):
line = lines[idx]
title_height = title_height + gdk_title_font.height(line)
title_width = max(title_width, gdk_title_font.width(line))
title_height = title_height + 10
title_width = x_offset + title_width + 10
cols = int (self.classification.count / 8)
samps = min( 8, self.classification.count )
samp_height = samps * (samp_offset) + 10
samp_width = x_offset
for i in range( cols + 1):
idx = 8 * i
col_width = 0
while idx < self.classification.count and idx < 8 * (i + 1):
name = self.classification.name[idx]
width = samp_x_size + 20 + gdk_font.width(name)
col_width = max(col_width, width)
idx = idx + 1
samp_width = samp_width + col_width + col_offset
samp_width = samp_width + 10
total_width = max(title_width, samp_width)
total_height = title_height + samp_height
self.resizing = TRUE
if (self.get_window().width < total_width) or \
(self.get_window().height < total_height):
self.resize_count = self.resize_count + 1
if self.resize_count < 2:
self.set_usize(total_width, total_height)
self.resizing = FALSE
for idx in range(len(lines)):
line = lines[idx]
w = gdk_title_font.width(line)
h = gdk_title_font.height(line)
title_width = max(title_width, w)
samp_text = gview.GvShape()
samp_text.add_node( x_offset, y_offset )
samp_text.set_property( '_gv_ogrfs',
'LABEL(c:' + title_ogr_color + \
',f:"' + str(title_font) + '",' \
+ 't:"' + line + '")' )
self.shapes.append(samp_text)
y_offset = y_offset + h
if ((len(lines[0]) > 6) and (lines[0][:6] != 'Legend') and
(lines[0][:6] != 'legend')):
self.set_title('Legend: ' + lines[0] + '...')
else:
self.set_title(lines[0] + '...')
y_offset = y_offset + 10
title_offset = y_offset
max_width = 0
max_height = 0
for class_id in range(self.classification.count):
color = self.classification.get_color( class_id )
symbol = self.classification.get_symbol( class_id )
scale = self.classification.get_scale( class_id )
if symbol is not None:
samp = gview.GvShape( type = gview.GVSHAPE_POINT )
samp.add_node( x_offset + (samp_x_size/2),
y_offset + (samp_y_size/2) )
ogrfs_color = '#%02x%02x%02x%02x' % (int(color[0] * 255.999),
int(color[1] * 255.999),
int(color[2] * 255.999),
int(color[3] * 255.999))
ogrfs = "SYMBOL(id:%s,c:%s,s:%s)" % (symbol, ogrfs_color,
scale)
samp.set_property( "_gv_ogrfs", ogrfs )
else:
samp = gview.GvShape( type = gview.GVSHAPE_AREA )
samp.add_node( x_offset, y_offset )
samp.add_node( x_offset+samp_x_size, y_offset )
samp.add_node( x_offset+samp_x_size, y_offset+samp_y_size )
samp.add_node( x_offset, y_offset+samp_y_size )
samp.add_node( x_offset, y_offset )
color = '%f %f %f %f' % color
samp.set_property( '_gv_color', color )
samp.set_property( '_gv_fill_color', color )
self.shapes.append( samp )
name = self.classification.name[class_id]
samp_text = gview.GvShape()
samp_text.add_node( x_offset+samp_x_size+10, y_offset + 17 )
font = str(label_font)
samp_text.set_property( '_gv_ogrfs',
'LABEL(c:' + label_ogr_color + \
',f:"'+font+'",t:"'+name+'")' )
self.shapes.append( samp_text )
this_width = samp_x_size + 20 + gdk_font.width(name)
if max_width < this_width:
max_width = this_width
y_offset = y_offset + samp_offset
if y_offset+samp_offset > self.viewarea.get_height():
max_height = max(max_height, y_offset + samp_offset)
y_offset = title_offset
x_offset = x_offset + col_offset + max_width
max_width = 0
self.vlayer.changed()
