def __init__(self):
Gtk.Layout.__init__(self)
self.thumbCache = {}
self.layoutEngine = LayoutEngine()
self.loading_pixbuf = GdkPixbuf.Pixbuf.new_from_file(
'data/gfx/refresh.png')
self.selection = selection
self.thumbnail_pixbufs = {}
self.exif_tags = {}
self.height = 100
self.width = 100
self.visible = Rectangle(0, 0, 1, 1)
self.connect('draw', self.on_draw_event)
self.connect('key-press-event', self.on_key_press)
self.set_can_focus(True)
self.items = []
self.update_layout()
selection.add_notify_callback(self.notify_selection_change)
self.hdl = None
vadj = self.get_vadjustment()
hadj = self.get_hadjustment()
vadj.connect('value-changed', self.on_adjustment_value_changed)
hadj.connect('value-changed', self.on_adjustment_value_changed)
Gtk.Scrollable.set_vadjustment(self, vadj)
Gtk.Scrollable.set_hadjustment(self, hadj)
def test_size(self):
le = LayoutEngine()
le.updateWidth(20)
le.updateCells(40, 10, 10)
area = Rectangle(0, 0, 20, 20)
cells = le.getVisibleCells(area)
exp = {
0: Rectangle(0, 0, 10, 10),
1: Rectangle(10, 0, 10, 10),
2: Rectangle(0, 10, 10, 10),
3: Rectangle(10, 10, 10, 10)
}
self.assertEqual(200, le.getHeight())
self.assertDictEqual(exp, cells)
le.updateWidth(30)
area = Rectangle(0, 1, 13, 20)
cells = le.getVisibleCells(area)
exp = {
0: Rectangle(0, 0, 10, 10),
1: Rectangle(10, 0, 10, 10),
3: Rectangle(0, 10, 10, 10),
4: Rectangle(10, 10, 10, 10),
6: Rectangle(0, 20, 10, 10),
7: Rectangle(10, 20, 10, 10)
}
self.assertEqual(140, le.getHeight())
self.assertDictEqual(cells, exp)
cells = le.getVisibleCells(Rectangle(15, 15, 3, 3))
self.assertDictEqual(cells, {4: Rectangle(10, 10, 10, 10)})
# test layout with spacing
le.updateWidth(23)
cells = le.getVisibleCells(Rectangle(0, 0, 23, 5))
self.assertDictEqual(cells, {
0: Rectangle(0, 0, 10, 10),
1: Rectangle(10, 0, 10, 10)
})
# test not full layout
le.updateCells(3, 10, 20)
le.updateWidth(20)
cells = le.getVisibleCells(Rectangle(0, 20, 20, 15))
self.assertDictEqual(cells, {2: Rectangle(0, 20, 10, 20)})
def __init__(self):
self.counter = 0
super().__init__()
self.thumbWidth = 100
self.thumbHeight = 80
self.thumbs = {}
self.items = []
self.cellsInView = {}
self.noThumbPixmap = QPixmap('data/gfx/noThumb.png')
self.noThumbPixmap = self.resizeImage(
self.noThumbPixmap, (self.thumbWidth, self.thumbHeight))
self.canvas = GScrollArea()
self.canvas.setResizeEventCallback(self.canvasResizeEvent)
self.w = QWidget()
self.w.paintEvent = self.canvasPaintEvent
self.canvas.setWidget(self.w)
self.canvas.setSizePolicy(
QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding))
label = QLabel('Thumbnails view')
layout = QGridLayout()
layout.addWidget(label, 0, 0, 1, 1)
layout.addWidget(self.canvas, 1, 0, 1, 1)
self.setLayout(layout)
self.cnt = 0
self.width = 500
self.layoutEngine = LayoutEngine()
self.layoutEngine.updateCells(0, 100, 100)
self.layoutEngine.updateWidth(self.width)
self.setCanvasSize(self.width, self.layoutEngine.getHeight())
