Geografic-Information-System/gui/wxpython/nviz/workspace.py

"""
@package nviz.workspace

@brief wxNviz workspace settings

Classes:
 - workspace::NvizSettings

(C) 2007-2011 by the GRASS Development Team

This program is free software under the GNU General Public License
(>=v2). Read the file COPYING that comes with GRASS for details.

@author Anna Kratochvilova <kratochanna gmail.com> (wxNviz / Google SoC 2011)
"""

import copy

from core.settings import UserSettings
from core.utils import _

try:
    from nviz import wxnviz
except ImportError:
    wxnviz = None


class NvizSettings(object):

    def __init__(self):
        pass

    def SetConstantDefaultProp(self):
        """Set default constant data properties"""
        data = dict()
        for key, value in UserSettings.Get(
                group='nviz', key='constant').iteritems():
            data[key] = value
        color = str(data['color'][0]) + ':' + str(data['color']
                                                  [1]) + ':' + str(data['color'][2])
        data['color'] = color

        return data

    def SetSurfaceDefaultProp(self, data=None):
        """Set default surface data properties"""
        if not data:
            data = dict()
        for sec in ('attribute', 'draw', 'mask', 'position'):
            data[sec] = {}

        #
        # attributes
        #
        for attrb in ('shine', ):
            data['attribute'][attrb] = {}
            for key, value in UserSettings.Get(group='nviz', key='surface',
                                               subkey=attrb).iteritems():
                data['attribute'][attrb][key] = value
            data['attribute'][attrb]['update'] = None

        #
        # draw
        #
        data['draw']['all'] = False  # apply only for current surface
        for control, value in UserSettings.Get(group='nviz', key='surface',
                                               subkey='draw').iteritems():
            if control[:3] == 'res':
                if 'resolution' not in data['draw']:
                    data['draw']['resolution'] = {}
                if 'update' not in data['draw']['resolution']:
                    data['draw']['resolution']['update'] = None
                data['draw']['resolution'][control[4:]] = value
                continue

            if control == 'wire-color':
                value = str(value[0]) + ':' + str(value[1]
                                                  ) + ':' + str(value[2])
            elif control in ('mode', 'style', 'shading'):
                if 'mode' not in data['draw']:
                    data['draw']['mode'] = {}
                continue

            data['draw'][control] = {'value': value}
            data['draw'][control]['update'] = None

        value, desc = self.GetDrawMode(
            UserSettings.Get(
                group='nviz', key='surface', subkey=[
                    'draw', 'mode']), UserSettings.Get(
                group='nviz', key='surface', subkey=[
                    'draw', 'style']), UserSettings.Get(
                        group='nviz', key='surface', subkey=[
                            'draw', 'shading']))

        data['draw']['mode'] = {'value': value,
                                'desc': desc,
                                'update': None}
        # position
        for coord in ('x', 'y', 'z'):
            data['position'][coord] = UserSettings.Get(
                group='nviz', key='surface', subkey=['position', coord])
        data['position']['update'] = None

        return data

    def SetVolumeDefaultProp(self):
        """Set default volume data properties"""
        data = dict()
        for sec in ('attribute', 'draw', 'position'):
            data[sec] = dict()
            for sec in ('isosurface', 'slice'):
                data[sec] = list()

        #
        # draw
        #
        for control, value in UserSettings.Get(
                group='nviz', key='volume', subkey='draw').iteritems():
            if control == 'shading':
                sel = UserSettings.Get(
                    group='nviz', key='volume', subkey=[
                        'draw', 'shading'])
                value, desc = self.GetDrawMode(shade=sel, string=False)

                data['draw']['shading'] = {}
                data['draw']['shading']['isosurface'] = {
                    'value': value, 'desc': desc['shading']}
                data['draw']['shading']['slice'] = {'value': value,
                                                    'desc': desc['shading']}
            elif control == 'mode':
                sel = UserSettings.Get(
                    group='nviz', key='volume', subkey=[
                        'draw', 'mode'])
                if sel == 0:
                    desc = 'isosurface'
                else:
                    desc = 'slice'
                data['draw']['mode'] = {'value': sel,
                                        'desc': desc, }
            elif control == 'box':
                box = UserSettings.Get(
                    group='nviz', key='volume', subkey=[
                        'draw', 'box'])
                data['draw']['box'] = {'enabled': box}

            else:
                data['draw'][control] = {}
                data['draw'][control]['isosurface'] = {'value': value}
                data['draw'][control]['slice'] = {'value': value}

            if 'update' not in data['draw'][control]:
                data['draw'][control]['update'] = None

        #
        # isosurface attributes
        #
        for attrb in ('shine', ):
            data['attribute'][attrb] = {}
            for key, value in UserSettings.Get(group='nviz', key='volume',
                                               subkey=attrb).iteritems():
                data['attribute'][attrb][key] = value

        return data

    def SetIsosurfaceDefaultProp(self):
        """Set default isosurface properties"""
        data = dict()
        for attr in ('shine', 'topo', 'transp', 'color', 'inout'):
            data[attr] = {}
            data[attr]['update'] = None
            if attr == 'inout':
                data[attr]['value'] = 0
                continue
            for key, value in UserSettings.Get(group='nviz', key='volume',
                                               subkey=attr).iteritems():
                data[attr][key] = value
        return data

    def SetSliceDefaultProp(self):
        """Set default slice properties"""
        data = dict()
        data['position'] = copy.deepcopy(
            UserSettings.Get(
                group='nviz',
                key='volume',
                subkey='slice_position'))
        data['position']['update'] = None

        data['transp'] = copy.deepcopy(
            UserSettings.Get(
                group='nviz',
                key='volume',
                subkey='transp'))
        return data

    def SetVectorDefaultProp(self, longDim, data=None):
        """Set default vector data properties"""
        if not data:
            data = dict()
        for sec in ('lines', 'points'):
            data[sec] = {}

        self.SetVectorLinesDefaultProp(data['lines'])
        self.SetVectorPointsDefaultProp(data['points'], longDim)

        return data

    def SetVectorLinesDefaultProp(self, data):
        """Set default vector properties -- lines"""
        # width
        data['width'] = {'value': UserSettings.Get(group='nviz', key='vector',
                                                   subkey=['lines', 'width'])}

        # color
        value = UserSettings.Get(group='nviz', key='vector',
                                 subkey=['lines', 'color'])
        color = str(value[0]) + ':' + str(value[1]) + ':' + str(value[2])
        data['color'] = {'value': color}

        # mode
        if UserSettings.Get(group='nviz', key='vector',
                            subkey=['lines', 'flat']):
            type = 'flat'

        else:
            type = 'surface'

        data['mode'] = {}
        data['mode']['type'] = type
        data['mode']['update'] = None

        # height
        data['height'] = {
            'value': UserSettings.Get(
                group='nviz',
                key='vector',
                subkey=[
                    'lines',
                    'height'])}
        # thematic
        data['thematic'] = {'rgbcolumn': UserSettings.Get(group='nviz', key='vector',
                                                          subkey=['lines', 'rgbcolumn']),
                            'sizecolumn': UserSettings.Get(group='nviz', key='vector',
                                                           subkey=['lines', 'sizecolumn']),
                            'layer': 1,
                            'usecolor': False,
                            'usewidth': False}
        if 'object' in data:
            for attrb in ('color', 'width', 'mode', 'height', 'thematic'):
                data[attrb]['update'] = None

    def SetVectorPointsDefaultProp(self, data, longDim):
        """Set default vector properties -- points"""
        size_fraction = 0.005
        # size
        autosize = UserSettings.Get(group='nviz', key='vector',
                                    subkey=['points', 'autosize'])
        if autosize:
            data['size'] = {'value': longDim * size_fraction}
        else:
            data['size'] = {'value': UserSettings.Get(group='nviz', key='vector',
                                                      subkey=['points', 'size'])}

        # width
        data['width'] = {'value': UserSettings.Get(group='nviz', key='vector',
                                                   subkey=['points', 'width'])}

        # marker
        data['marker'] = {
            'value': UserSettings.Get(
                group='nviz',
                key='vector',
                subkey=[
                    'points',
                    'marker'])}

        # color
        value = UserSettings.Get(group='nviz', key='vector',
                                 subkey=['points', 'color'])
        color = str(value[0]) + ':' + str(value[1]) + ':' + str(value[2])
        data['color'] = {'value': color}

        # mode
        data['mode'] = {'type': 'surface'}
# 'surface' : '', }

        # height
        data['height'] = {
            'value': UserSettings.Get(
                group='nviz',
                key='vector',
                subkey=[
                    'points',
                    'height'])}

        data['thematic'] = {
            'rgbcolumn': UserSettings.Get(
                group='nviz',
                key='vector',
                subkey=[
                    'points',
                    'rgbcolumn']),
            'sizecolumn': UserSettings.Get(
                group='nviz',
                key='vector',
                subkey=[
                    'points',
                    'sizecolumn']),
            'layer': 1,
            'usecolor': False,
            'usesize': False}
        if 'object' in data:
            for attrb in ('size', 'width', 'marker',
                          'color', 'height', 'thematic'):
                data[attrb]['update'] = None

    def GetDrawMode(self, mode=None, style=None, shade=None, string=False):
        """Get surface draw mode (value) from description/selection

        :param mode:
        :param style:
        :param shade:
        :param string: if True input parameters are strings otherwise
                       selections
        """
        if not wxnviz:
            return None

        value = 0
        desc = {}

        if string:
            if mode is not None:
                if mode == 'coarse':
                    value |= wxnviz.DM_WIRE
                elif mode == 'fine':
                    value |= wxnviz.DM_POLY
                else:  # both
                    value |= wxnviz.DM_WIRE_POLY

            if style is not None:
                if style == 'wire':
                    value |= wxnviz.DM_GRID_WIRE
                else:  # surface
                    value |= wxnviz.DM_GRID_SURF

            if shade is not None:
                if shade == 'flat':
                    value |= wxnviz.DM_FLAT
                else:  # surface
                    value |= wxnviz.DM_GOURAUD

            return value

        # -> string is False
        if mode is not None:
            if mode == 0:  # coarse
                value |= wxnviz.DM_WIRE
                desc['mode'] = 'coarse'
            elif mode == 1:  # fine
                value |= wxnviz.DM_POLY
                desc['mode'] = 'fine'
            else:  # both
                value |= wxnviz.DM_WIRE_POLY
                desc['mode'] = 'both'

        if style is not None:
            if style == 0:  # wire
                value |= wxnviz.DM_GRID_WIRE
                desc['style'] = 'wire'
            else:  # surface
                value |= wxnviz.DM_GRID_SURF
                desc['style'] = 'surface'

        if shade is not None:
            if shade == 0:
                value |= wxnviz.DM_FLAT
                desc['shading'] = 'flat'
            else:  # surface
                value |= wxnviz.DM_GOURAUD
                desc['shading'] = 'gouraud'

        return (value, desc)

    def SetDecorDefaultProp(self, type):
        """Set default arrow properties
        """
        data = {}

        # arrow
        if type == 'arrow':
            data['arrow'] = copy.deepcopy(UserSettings.Get(group='nviz',
                                                           key='arrow'))
            data['arrow']['color'] = "%d:%d:%d" % (
                UserSettings.Get(group='nviz', key='arrow',
                                 subkey='color')[:3])
            data['arrow'].update(
                copy.deepcopy(
                    UserSettings.Get(
                        group='nviz',
                        key='arrow',
                        settings_type='internal')))
            data['arrow']['show'] = False

        # arrow
        if type == 'scalebar':
            data['scalebar'] = copy.deepcopy(UserSettings.Get(group='nviz',
                                                              key='scalebar'))
            data['scalebar']['color'] = "%d:%d:%d" % (
                UserSettings.Get(group='nviz', key='scalebar',
                                 subkey='color')[:3])
            data['scalebar'].update(
                copy.deepcopy(
                    UserSettings.Get(
                        group='nviz',
                        key='scalebar',
                        settings_type='internal')))
            data['scalebar']['id'] = 0
        return data