Module albow.dialog.FileListView

Source code 
import os

from pygame import Surface
from pygame import Rect

from albow.containers.PaletteView import PaletteView
from albow.dialog.DialogUtilities import alert


class FileListView(PaletteView):

    def __init__(self, width, client, **kwds):
        """

        :param width:
        :param client:
        :param kwds:
        """
        font = self.predict_font(kwds)
        h = font.get_linesize()
        d = 2 * self.predict(kwds, 'margin')
        super().__init__((width - d, h), 10, 1, scrolling=True, **kwds)
        self.client = client
        self.selection = None
        self.names = []

    def update(self):
        client    = self.client
        directory = client.directory

        def aFilter(name):
            path = os.path.join(directory, name)
            return os.path.isdir(path) or self.client.filter(path)

        try:
            names = [name for name in os.listdir(directory)
                     if not name.startswith(".") and aFilter(name)]
        except EnvironmentError as e:
            alert("%s: %s" % (directory, e))
            names = []
        self.names = names
        self.selection = None

    def num_items(self):
        return len(self.names)

    def draw_item(self, surface: Surface, item_no: int, rect: Rect):

        color = self.fg_color
        buf = self.font.render(self.names[item_no], True, color)
        surface.blit(buf, rect)

    def click_item(self, item_no, e):
        self.selection = item_no
        self.client.dir_box_click(e.num_clicks == 2)

    def item_is_selected(self, item_no):
        return item_no == self.selection

    def get_selected_name(self):
        sel = self.selection
        if sel is not None:
            return self.names[sel]
        else:
            return ""

Classes

class FileListView (width, client, **kwds)

The PaletteView class is an abstract base class for implementing tool palettes and similar things. A PaletteView displays an array of items which can be selected by clicking, with the selected item being highlighted. There is provision for scrolling, so that the palette can contain more items than are displayed at one time.

The PaletteView does not maintain the items themselves or keep track of which one is selected; these things are responsibilities of the subclass.

:param width: :param client: :param kwds:

Source code 
class FileListView(PaletteView):

    def __init__(self, width, client, **kwds):
        """

        :param width:
        :param client:
        :param kwds:
        """
        font = self.predict_font(kwds)
        h = font.get_linesize()
        d = 2 * self.predict(kwds, 'margin')
        super().__init__((width - d, h), 10, 1, scrolling=True, **kwds)
        self.client = client
        self.selection = None
        self.names = []

    def update(self):
        client    = self.client
        directory = client.directory

        def aFilter(name):
            path = os.path.join(directory, name)
            return os.path.isdir(path) or self.client.filter(path)

        try:
            names = [name for name in os.listdir(directory)
                     if not name.startswith(".") and aFilter(name)]
        except EnvironmentError as e:
            alert("%s: %s" % (directory, e))
            names = []
        self.names = names
        self.selection = None

    def num_items(self):
        return len(self.names)

    def draw_item(self, surface: Surface, item_no: int, rect: Rect):

        color = self.fg_color
        buf = self.font.render(self.names[item_no], True, color)
        surface.blit(buf, rect)

    def click_item(self, item_no, e):
        self.selection = item_no
        self.client.dir_box_click(e.num_clicks == 2)

    def item_is_selected(self, item_no):
        return item_no == self.selection

    def get_selected_name(self):
        sel = self.selection
        if sel is not None:
            return self.names[sel]
        else:
            return ""

Ancestors

Methods

def draw_item(self, surface, item_no, rect)
Source code 
def draw_item(self, surface: Surface, item_no: int, rect: Rect):

    color = self.fg_color
    buf = self.font.render(self.names[item_no], True, color)
    surface.blit(buf, rect)
def get_selected_name(self)
Source code 
def get_selected_name(self):
    sel = self.selection
    if sel is not None:
        return self.names[sel]
    else:
        return ""
def num_items(self)
Source code 
def num_items(self):
    return len(self.names)
def update(self)
Source code 
def update(self):
    client    = self.client
    directory = client.directory

    def aFilter(name):
        path = os.path.join(directory, name)
        return os.path.isdir(path) or self.client.filter(path)

    try:
        names = [name for name in os.listdir(directory)
                 if not name.startswith(".") and aFilter(name)]
    except EnvironmentError as e:
        alert("%s: %s" % (directory, e))
        names = []
    self.names = names
    self.selection = None

Inherited members