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 __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 __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())
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())
class ThumbnailsView(Gtk.Layout):
scroll_value = 0
scroll = False
real_focus_cell = 0
# initial thumbnail size
real_thumbnail_width = 160
thumbnail_height = 160
sort_by = 'date'
reversed_sort_order = False
priority_loads = []
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 __load_thumbnails_bg(self):
while True:
if self.priority_loads:
idx = self.priority_loads.pop(0)
self.get_thumb(idx)
self.invalidate_cell(idx)
time.sleep(0.01)
yield True
def get_thumb(self, idx):
""" create a PixBuf containing the image's thumb and flags images
(basket, read-only, raw) the image's full path is used as buffer's key
"""
node = self.items[idx]
if not self.is_thumb(idx):
Buffer.images[node.file] = node.getThumb()
pb = Buffer.images[node.file]
pb2 = 0
if node.isInBasket:
if pb2 == 0:
pb2 = pb.copy()
Buffer.pbBasket.copy_area(0, 0, 15, 13, pb2, 7, 7)
if node.isReadOnly:
if pb2 == 0:
pb2 = pb.copy()
wx = pb.get_width()
Buffer.pbReadOnly.copy_area(0, 0, 15, 13, pb2, wx - 22, 7)
if node.rating:
if pb2 == 0:
pb2 = pb.copy()
i = 0
while i < node.rating:
Buffer.pbReadOnly.copy_area(5, 4, 5, 5, pb2, 25 + 7 * i, 11)
i += 1
if pb2 != 0:
pb = pb2
return pb
def stop(self):
""" stop background process which load thumbs """
if self.hdl:
GObject.source_remove(self.hdl)
self.hdl = None
def start(self):
""" start background process to load thumbs """
if not self.hdl:
gen = self.__load_thumbnails_bg()
def f():
return next(gen)
self.hdl = GObject.idle_add(f)
def set_photos(self, photos):
self.stop()
self.items = photos
# ~ self.sort_photos(photos)
self.update_layout()
self.selection.empty()
self.priority_loads = []
self.start()
def get_thumbnail_width(self):
return self.real_thumbnail_width
def set_thumbnail_width(self, value):
self.thumbnail_height = value # int(value * 3./4)
self.real_thumbnail_width = int(value)
self.invalidate_view()
self.update_layout()
thumbnail_width = property(get_thumbnail_width, set_thumbnail_width)
def on_key_press(self, widget, event):
shift = event.state & (Gdk.KEY_Shift_L | Gdk.KEY_Shift_R)
ctrl = event.state & (Gdk.KEY_Control_L | Gdk.KEY_Control_R)
focus_old = self.focus_cell
if event.keyval == Gdk.KEY_Down:
self.focus_cell += self.cells_per_row
elif event.keyval == Gdk.KEY_Left:
if ctrl and shift:
self.focus_cell -= self.focus_cell % self.cells_per_row
else:
self.focus_cell -= 1
elif event.keyval == Gdk.KEY_Right:
if ctrl and shift:
self.focus_cell += self.cells_per_row - \
(self.focus_cell % self.cells_per_row) - 1
else:
self.focus_cell += 1
elif event.keyval == Gdk.KEY_Up:
self.focus_cell -= self.cells_per_row
elif event.keyval == Gdk.KEY_Home:
self.focus_cell = 0
elif event.keyval == Gdk.KEY_End:
self.focus_cell = len(self.items) - 1
elif ctrl and event.keyval == ord('a'): # select All
self.selection.set(range(0, len(self.items)))
else:
return False
self.focus_cell = max(self.focus_cell, 0)
self.focus_cell = min(self.focus_cell, len(self.items) - 1)
if self.focus_cell == focus_old:
# so up from the first or down from the last doesn't tab
# to the prev/next widget
return True
self.selection.freeze()
if shift:
if focus_old != self.focus_cell and focus_old in self.selection \
and self.focus_cell in self.selection:
for i in range(min(focus_old, self.focus_cell) + 1,
max(focus_old, self.focus_cell) + 1):
if i in self.selection:
self.selection.remove(i)
else:
for i in range(min(focus_old, self.focus_cell),
max(focus_old, self.focus_cell) + 1):
if not i in self.selection:
self.selection.append(i)
else:
self.selection.set([self.focus_cell])
self.selection.thaw()
self.scroll_to(self.focus_cell)
return True
def on_adjustment_value_changed(self, adj, *args):
self.visible.y = int(adj.get_value())
self.do_scroll()
def onHAdjustmentValueChanged(self, adj, *args):
self.do_scroll()
def do_scroll(self):
pass
def update_layout(self, rectangle=None):
if rectangle is None:
rectangle = self.get_allocation()
self.layoutEngine.updateWidth(rectangle.width)
self.layoutEngine.updateCells(len(self.items), self.thumbnail_width, self.thumbnail_height)
self.height = self.layoutEngine.getHeight()
self.visible.width = rectangle.width
self.visible.height = rectangle.height
vadjustment = self.get_vadjustment()
hadjustment = self.get_hadjustment()
vadjustment.step_increment = self.thumbnail_height
vadjustment.connect('value-changed', self.on_adjustment_value_changed)
x = hadjustment.get_value()
y = self.height * self.scroll_value
self.set_size(x, y, self.visible.width, self.height)
def set_size(self, x, y, width, height):
vadjustment = self.get_vadjustment()
hadjustment = self.get_hadjustment()
xchange = False
ychange = False
hadjustment.upper = max(self.get_allocation().width, width)
vadjustment.upper = max(self.get_allocation().height, height)
if self.scroll:
xchange = (hadjustment.value != x)
ychange = (vadjustment.value != y)
self.scroll = False
if self.get_realized():
self.get_bin_window().freeze_updates()
#self.bin_window.freeze_updates()
if xchange or ychange:
if self.get_realized():
self.bin_window.move_resize(-x, -y, hadjustment.upper,
vadjustment.upper)
vadjustment.value = y
hadjustment.value = x
if self.scroll:
self.scroll = False
if width != self.get_allocation().width or height != self.get_allocation().height:
Gtk.Layout.set_size(self, width, height)
if xchange or ychange:
vadjustment.change_value()
hadjustment.change_value()
if self.get_realized():
self.get_bin_window().thaw_updates()
self.get_bin_window().process_updates(True)
def on_draw_event(self, widget, context):
alloc = self.get_allocation()
area = [alloc.x, alloc.y, self.get_allocated_width(), self.get_allocated_height()]
# context.set_source_rgb(0, 0, 0)
# context.set_line_width(0.5)
# context.rectangle(10, 10, 10, 20)
#
# import random
# mx = min(alloc.width, alloc.height)
# self.coords = []
# for _ in range(30):
# self.coords.append((random.randint(0, mx), random.randint(0, mx)))
# for i in self.coords:
# for j in self.coords:
# context.move_to(i[0], i[1])
# context.line_to(j[0], j[1])
# context.stroke()
print(self.visible)
self.draw_all_cells(self.visible, context)
context.stroke()
return False
def get_cell_position(self, cell_num):
if self.cells_per_row == 0:
return 0, 0
row, col = divmod(cell_num, self.cells_per_row)
x = col * self.cell_width + BORDER_SIZE
y = row * self.cell_height + BORDER_SIZE
return x, y
def draw_all_cells(self, area, cr):
cells = self.layoutEngine.getVisibleCells(area)
for cellNum, cell in cells.items():
self.drawCell(cr, cell, cellNum)
def drawCell(self, cr, cell, cellNum):
img = self.items[cellNum]
fname = img.file
thumb = self.thumbCache.get(fname)
print('draw thumb: ', fname )
if not thumb:
thumb = GdkPixbuf.Pixbuf.new_from_file(fname)
thumb = thumb.scale_simple(self.thumbnail_width, self.thumbnail_height,
GdkPixbuf.InterpType.BILINEAR)
self.thumbCache[fname] = thumb
x = cell.x - self.visible.x
y = cell.y - self.visible.y
Gdk.cairo_set_source_pixbuf(cr, thumb, x, y)
cr.paint()
cr.stroke()
# cr.rectangle(cell.x - self.visible.x, cell.y - self.visible.y, cell.width, cell.height)
# self.get_thumbnail_pixbuf(cellNum)
# cr.stroke()
def cell_bounds(self, cell, cr):
x, y = self.get_cell_position(cell)
return [x, y, self.cell_width, self.cell_height]
def get_thumbnail_pixbuf(self, thumbnail_num):
if not self.is_thumb(thumbnail_num):
if thumbnail_num in self.priority_loads:
self.priority_loads.remove(thumbnail_num)
self.priority_loads.insert(0, thumbnail_num)
pixbuf = self.loading_pixbuf
else:
pixbuf = self.get_thumb(thumbnail_num)
if pixbuf.get_width() > pixbuf.get_height():
wx, wy = self.thumbnail_width, self.thumbnail_height
else:
r = float(pixbuf.get_height()) / self.thumbnail_height
wx, wy = int(pixbuf.get_width() / r), self.thumbnail_height
# ~ pixbuf = pixbuf.scale_simple(wx, wy, gtk.gdk.INTERP_BILINEAR)
pixbuf = pixbuf.scale_simple(wx, wy, gtk.gdk.INTERP_NEAREST)
return pixbuf
def draw_cell(self, thumbnail_num, area, cr):
bounds = self.cell_bounds(thumbnail_num, cr)
ins = rectIntersect(bounds, area)
if not rectIntersect(bounds, area):
return
# a = GdkPixbuf.Pixbuf.new_from_file('/media/data/ph/marn2/DSC_0647.JPG')
# a = a.scale_simple(150, 150, GdkPixbuf.InterpType.BILINEAR)
# thumbnail = a.scale_simple(self.cell_width, self.cell_height, GdkPixbuf.InterpType.BILINEAR)
# Gdk.cairo_set_source_pixbuf(cr, a, a.get_width(), a.get_height())
# cr.paint()
# cr.stroke()
thumbnail = self.get_thumbnail_pixbuf(thumbnail_num)
selected = thumbnail_num in self.selection
if selected:
if self.has_focus():
cell_state = Gtk.StateFlags.SELECTED
else:
cell_state = Gtk.StateFlags.ACTIVE
else:
cell_state = Gtk.StateFlags.NORMAL
if thumbnail != self.loading_pixbuf:
cr.rectangle(bounds[0], bounds[1], bounds[2] - 1, bounds[3] - 1)
# self.style.paint_flat_box(self.bin_window, cell_state,
# gtk.SHADOW_OUT, area, self,
# 'ThumbnailsView',
# bounds.x, bounds.y,
# bounds.width - 1, bounds.height - 1)
def inflate(rect, x, y):
return (rect[0] - x, rect[1] - y, rect[2] + 2*x, rect[3]+2*y)
#isFocused = False
if self.has_focus() and thumbnail_num == self.focus_cell:
focus = inflate(bounds, -3, -3)
# self.get_style().paint_focus(self.bin_window, cell_state,
# area, self, None, focus.x, focus.y,
# focus.width, focus.height)
#isFocused = True
region = (0, 0, 0, 0)
image_bounds = inflate(bounds, -CELL_BORDER_WIDTH, -CELL_BORDER_WIDTH)
if selected:
expansion = SELECTION_THICKNESS
else:
expansion = 0
boundsInflated = inflate(image_bounds, expansion + 1, expansion + 1)
image_bounds = rectIntersect(image_bounds, area)
if image_bounds[2]:
def fit(orig_width, orig_height, dest_width, dest_height):
if orig_width == 0 or orig_height == 0:
return 0, 0
scale = min(dest_width / orig_width, dest_height / orig_height)
if scale > 1:
scale = 1
fit_width = scale * orig_width
fit_height = scale * orig_height
return fit_width, fit_height
# resizing during the painting (pn.getThumb give some 160x160)
w, h = fit(thumbnail.get_width(), thumbnail.get_height(),
self.thumbnail_width, self.thumbnail_width)
# resizing during the extraction (pn.getThumb desired size)
# w, h = fit(thumbnail.get_width(), thumbnail.get_height(),
# 160, 160)
cr.set_line_width(1)
cr.set_source_rgb(0, 0, 0)
cr.rectangle(10, 10, 10, 10)
region = cr.rectangle(bounds[0], bounds[1], bounds[2], bounds[3])
region = bounds
# bounds.x + (bounds.width - w) / 2,
# bounds.y + self.thumbnail_height - h + CELL_BORDER_WIDTH,
# w, h)
# EXPAND WHEN SELECTED !
region = inflate(region, expansion, expansion)
region = (region[0], region[1], max(1, region[2]), max(1, region[3]))
#a = GdkPixbuf.Pixbuf.new_from_file('/media/data/ph/marn2/DSC_0647.JPG')
if region[2] != thumbnail.get_width() and region[3] != thumbnail.get_height():
# the speedest
temp_thumbnail = thumbnail.scale_simple(region[2], region[3],
GdkPixbuf.InterpType.BILINEAR)
else:
temp_thumbnail = thumbnail
region = (region[0], region[1], temp_thumbnail.get_width(), temp_thumbnail.get_height())
draw = inflate(region, 1, 1)
# if thumbnail != self.loading_pixbuf:
# self.style.paint_shadow(self.bin_window, cell_state,
# gtk.SHADOW_OUT, area, self,
# 'ThumbnailsView', draw.x,
# draw.y, draw.width, draw.height)
draw = rectIntersect(region, area)
if draw[2]:
cr.rectangle(draw[0], draw[1], draw[2], draw[3])
# Gdk.cairo_set_source_pixbuf(cr, a, draw[0], draw[1])
# cr.paint()
# cr.stroke()
# self.get_bin_window().draw_pixbuf(
# self.style.white_gc,
# temp_thumbnail,
# draw.x - region.x,
# draw.y - region.y,
# draw.x, draw.y,
# draw.width, draw.height,
# gtk.gdk.RGB_DITHER_NONE,
# draw.x, draw.y)
layout_bounds = (0, 0, 0, 0)
item = self.items[thumbnail_num]
if item:
layout = Pango.Layout(self.get_pango_context())
layout.set_font_description(self.get_style().font_desc)
t = self.get_text(thumbnail_num)
layout.set_text(t, len(t))
# ~ if isFocused:
layout.set_width((region[2] + 6) * 1000)
layout.set_wrap(1)
layout_bounds = (layout_bounds[0], layout_bounds[1]) + layout.get_pixel_size()
lbX = bounds[0] + (bounds[2] - layout_bounds[2]) / 2
lbY = bounds[1] + bounds[3] - CELL_BORDER_WIDTH - layout_bounds[3] + 3
layout_bounds = (lbX, lbY) + layout_bounds[2:]
region = rectIntersect(layout_bounds, area)
if region is None:
region = (0, 0, 0, 0)
if region[2]:
cr.rectangle(layout_bounds[0], layout_bounds[1], layout_bounds[2],
layout_bounds[3])
# self.style.paint_flat_box(self.bin_window, cell_state,
# gtk.SHADOW_OUT, area, self,
# 'ThumbnailsView',
# layout_bounds.x,
# layout_bounds.y,
# layout_bounds.width,
# layout_bounds.height)
#
# self.style.paint_layout(self.bin_window, cell_state,
# True, area, self,
# 'ThumbnailsView',
# layout_bounds.x,
# layout_bounds.y, layout)
def scroll_to(self, cell_num, center=True):
if not self.get_realized():
return
adjustment = self.get_vadjustment()
x, y = self.get_cell_position(cell_num)
if y + self.cell_height > adjustment.upper:
self.update_layout()
if center:
t = y + self.cell_height / 2 - adjustment.page_size / 2
if t < 0:
t = 0
elif t + adjustment.page_size > adjustment.upper:
t = adjustment.upper - adjustment.page_size
adjustment.value = t
else:
adjustment.value = y
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)})
class ThumbView(QWidget):
needThumb = pyqtSignal(int, str)
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())
def canvasResizeEvent(self, ev: QResizeEvent):
oldSize = ev.oldSize()
newSize = ev.size()
if oldSize.width() != newSize.width():
self.updateLayout(newSize.width())
def setItems(self, items):
self.items = items
nCells = len(items)
print('Set items: ', nCells)
self.layoutEngine.updateCells(nCells, 100, 100)
self.updateLayout(self.layoutEngine.getWidth())
self.w.repaint()
def updateLayout(self, width):
self.layoutEngine.updateWidth(width - 1)
height = self.layoutEngine.getHeight()
self.setCanvasSize(width, height)
def repaintCanvas(self):
self.w.repaint()
def setCanvasSize(self, w, h):
self.w.resize(w, h)
def canvasPaintEvent(self, ev: QPaintEvent):
print(self.counter, ' ', end='')
self.counter += 1
repaintRect = ev.rect()
repaintArea = Rectangle(repaintRect.x(), repaintRect.y(),
repaintRect.width(), repaintRect.height())
painter = QPainter(self.w)
thumbRequested = False
cells = self.layoutEngine.getVisibleCells(repaintArea)
for cellNum, cell in cells.items():
thumb = self.items[cellNum]
if thumb.getPath() in self.thumbs:
self.drawThumnail(cellNum, self.thumbs[thumb.getPath()], thumb,
cell, painter)
else:
if not thumbRequested:
self.needThumb.emit(cellNum, thumb.getPath())
thumbRequested = True
self.drawThumnail(cellNum, self.noThumbPixmap,
self.items[cellNum], cell, painter)
def drawThumnail(self, cellNum, pic, thumb: PhotoNode, cell: Rectangle,
painter: QPainter):
rect = QRect(cell.x, cell.y, cell.width, cell.height)
bLeft = rect.bottomLeft()
# draw name
fontHeight = 20
font = painter.font()
font.setPixelSize(fontHeight)
textTopRight = QPoint(bLeft.x(), bLeft.y() - fontHeight)
textRect = QRect(textTopRight, rect.bottomRight())
thumbName = thumb.name
painter.drawText(textRect, Qt.AlignHCenter, thumbName)
#painter.drawRect(rect)
# draw thumb
imageRect = QRect(rect.topLeft(), textRect.topRight())
imageCenter = imageRect.center()
imageX = int(imageCenter.x() - pic.width() / 2)
imageY = int(imageCenter.y() - pic.height() / 2)
imageOrigin = QPoint(imageX, imageY)
painter.drawPixmap(imageOrigin, pic)
@pyqtSlot(int, str, Image.Image)
def updateThumb(self, thumbId: int, path: str, pic: Image.Image):
thumb = ImageQt.toqimage(pic)
thumb = self.resizeImage(thumb, (self.thumbWidth, self.thumbHeight))
thumb = QPixmap.fromImage(thumb)
self.thumbs[path] = thumb
self.repaintCanvas()
def resizeImage(self, img: QImage, size: tuple):
x = img.width()
y = img.height()
if x <= size[0] and y <= size[1]:
return img
origK = img.height() / img.width()
if x > size[0]:
x = size[0]
y = int(origK * x)
if y > size[1]:
y = size[1]
x = (y / origK)
return img.scaled(x, y, transformMode=QtCore.Qt.SmoothTransformation)
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)})
class ThumbnailsView(Gtk.Layout):
scroll_value = 0
scroll = False
real_focus_cell = 0
# initial thumbnail size
real_thumbnail_width = 160
thumbnail_height = 160
sort_by = 'date'
reversed_sort_order = False
priority_loads = []
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 __load_thumbnails_bg(self):
while True:
if self.priority_loads:
idx = self.priority_loads.pop(0)
self.get_thumb(idx)
self.invalidate_cell(idx)
time.sleep(0.01)
yield True
def get_thumb(self, idx):
""" create a PixBuf containing the image's thumb and flags images
(basket, read-only, raw) the image's full path is used as buffer's key
"""
node = self.items[idx]
if not self.is_thumb(idx):
Buffer.images[node.file] = node.getThumb()
pb = Buffer.images[node.file]
pb2 = 0
if node.isInBasket:
if pb2 == 0:
pb2 = pb.copy()
Buffer.pbBasket.copy_area(0, 0, 15, 13, pb2, 7, 7)
if node.isReadOnly:
if pb2 == 0:
pb2 = pb.copy()
wx = pb.get_width()
Buffer.pbReadOnly.copy_area(0, 0, 15, 13, pb2, wx - 22, 7)
if node.rating:
if pb2 == 0:
pb2 = pb.copy()
i = 0
while i < node.rating:
Buffer.pbReadOnly.copy_area(5, 4, 5, 5, pb2, 25 + 7 * i, 11)
i += 1
if pb2 != 0:
pb = pb2
return pb
def stop(self):
""" stop background process which load thumbs """
if self.hdl:
GObject.source_remove(self.hdl)
self.hdl = None
def start(self):
""" start background process to load thumbs """
if not self.hdl:
gen = self.__load_thumbnails_bg()
def f():
return next(gen)
self.hdl = GObject.idle_add(f)
def set_photos(self, photos):
self.stop()
self.items = photos
# ~ self.sort_photos(photos)
self.update_layout()
self.selection.empty()
self.priority_loads = []
self.start()
def get_thumbnail_width(self):
return self.real_thumbnail_width
def set_thumbnail_width(self, value):
self.thumbnail_height = value # int(value * 3./4)
self.real_thumbnail_width = int(value)
self.invalidate_view()
self.update_layout()
thumbnail_width = property(get_thumbnail_width, set_thumbnail_width)
def on_key_press(self, widget, event):
shift = event.state & (Gdk.KEY_Shift_L | Gdk.KEY_Shift_R)
ctrl = event.state & (Gdk.KEY_Control_L | Gdk.KEY_Control_R)
focus_old = self.focus_cell
if event.keyval == Gdk.KEY_Down:
self.focus_cell += self.cells_per_row
elif event.keyval == Gdk.KEY_Left:
if ctrl and shift:
self.focus_cell -= self.focus_cell % self.cells_per_row
else:
self.focus_cell -= 1
elif event.keyval == Gdk.KEY_Right:
if ctrl and shift:
self.focus_cell += self.cells_per_row - \
(self.focus_cell % self.cells_per_row) - 1
else:
self.focus_cell += 1
elif event.keyval == Gdk.KEY_Up:
self.focus_cell -= self.cells_per_row
elif event.keyval == Gdk.KEY_Home:
self.focus_cell = 0
elif event.keyval == Gdk.KEY_End:
self.focus_cell = len(self.items) - 1
elif ctrl and event.keyval == ord('a'): # select All
self.selection.set(range(0, len(self.items)))
else:
return False
self.focus_cell = max(self.focus_cell, 0)
self.focus_cell = min(self.focus_cell, len(self.items) - 1)
if self.focus_cell == focus_old:
# so up from the first or down from the last doesn't tab
# to the prev/next widget
return True
self.selection.freeze()
if shift:
if focus_old != self.focus_cell and focus_old in self.selection \
and self.focus_cell in self.selection:
for i in range(
min(focus_old, self.focus_cell) + 1,
max(focus_old, self.focus_cell) + 1):
if i in self.selection:
self.selection.remove(i)
else:
for i in range(min(focus_old, self.focus_cell),
max(focus_old, self.focus_cell) + 1):
if not i in self.selection:
self.selection.append(i)
else:
self.selection.set([self.focus_cell])
self.selection.thaw()
self.scroll_to(self.focus_cell)
return True
def on_adjustment_value_changed(self, adj, *args):
self.visible.y = int(adj.get_value())
self.do_scroll()
def onHAdjustmentValueChanged(self, adj, *args):
self.do_scroll()
def do_scroll(self):
pass
def update_layout(self, rectangle=None):
if rectangle is None:
rectangle = self.get_allocation()
self.layoutEngine.updateWidth(rectangle.width)
self.layoutEngine.updateCells(len(self.items), self.thumbnail_width,
self.thumbnail_height)
self.height = self.layoutEngine.getHeight()
self.visible.width = rectangle.width
self.visible.height = rectangle.height
vadjustment = self.get_vadjustment()
hadjustment = self.get_hadjustment()
vadjustment.step_increment = self.thumbnail_height
vadjustment.connect('value-changed', self.on_adjustment_value_changed)
x = hadjustment.get_value()
y = self.height * self.scroll_value
self.set_size(x, y, self.visible.width, self.height)
def set_size(self, x, y, width, height):
vadjustment = self.get_vadjustment()
hadjustment = self.get_hadjustment()
xchange = False
ychange = False
hadjustment.upper = max(self.get_allocation().width, width)
vadjustment.upper = max(self.get_allocation().height, height)
if self.scroll:
xchange = (hadjustment.value != x)
ychange = (vadjustment.value != y)
self.scroll = False
if self.get_realized():
self.get_bin_window().freeze_updates()
#self.bin_window.freeze_updates()
if xchange or ychange:
if self.get_realized():
self.bin_window.move_resize(-x, -y, hadjustment.upper,
vadjustment.upper)
vadjustment.value = y
hadjustment.value = x
if self.scroll:
self.scroll = False
if width != self.get_allocation(
).width or height != self.get_allocation().height:
Gtk.Layout.set_size(self, width, height)
if xchange or ychange:
vadjustment.change_value()
hadjustment.change_value()
if self.get_realized():
self.get_bin_window().thaw_updates()
self.get_bin_window().process_updates(True)
def on_draw_event(self, widget, context):
alloc = self.get_allocation()
area = [
alloc.x, alloc.y,
self.get_allocated_width(),
self.get_allocated_height()
]
# context.set_source_rgb(0, 0, 0)
# context.set_line_width(0.5)
# context.rectangle(10, 10, 10, 20)
#
# import random
# mx = min(alloc.width, alloc.height)
# self.coords = []
# for _ in range(30):
# self.coords.append((random.randint(0, mx), random.randint(0, mx)))
# for i in self.coords:
# for j in self.coords:
# context.move_to(i[0], i[1])
# context.line_to(j[0], j[1])
# context.stroke()
print(self.visible)
self.draw_all_cells(self.visible, context)
context.stroke()
return False
def get_cell_position(self, cell_num):
if self.cells_per_row == 0:
return 0, 0
row, col = divmod(cell_num, self.cells_per_row)
x = col * self.cell_width + BORDER_SIZE
y = row * self.cell_height + BORDER_SIZE
return x, y
def draw_all_cells(self, area, cr):
cells = self.layoutEngine.getVisibleCells(area)
for cellNum, cell in cells.items():
self.drawCell(cr, cell, cellNum)
def drawCell(self, cr, cell, cellNum):
img = self.items[cellNum]
fname = img.file
thumb = self.thumbCache.get(fname)
print('draw thumb: ', fname)
if not thumb:
thumb = GdkPixbuf.Pixbuf.new_from_file(fname)
thumb = thumb.scale_simple(self.thumbnail_width,
self.thumbnail_height,
GdkPixbuf.InterpType.BILINEAR)
self.thumbCache[fname] = thumb
x = cell.x - self.visible.x
y = cell.y - self.visible.y
Gdk.cairo_set_source_pixbuf(cr, thumb, x, y)
cr.paint()
cr.stroke()
# cr.rectangle(cell.x - self.visible.x, cell.y - self.visible.y, cell.width, cell.height)
# self.get_thumbnail_pixbuf(cellNum)
# cr.stroke()
def cell_bounds(self, cell, cr):
x, y = self.get_cell_position(cell)
return [x, y, self.cell_width, self.cell_height]
def get_thumbnail_pixbuf(self, thumbnail_num):
if not self.is_thumb(thumbnail_num):
if thumbnail_num in self.priority_loads:
self.priority_loads.remove(thumbnail_num)
self.priority_loads.insert(0, thumbnail_num)
pixbuf = self.loading_pixbuf
else:
pixbuf = self.get_thumb(thumbnail_num)
if pixbuf.get_width() > pixbuf.get_height():
wx, wy = self.thumbnail_width, self.thumbnail_height
else:
r = float(pixbuf.get_height()) / self.thumbnail_height
wx, wy = int(pixbuf.get_width() / r), self.thumbnail_height
# ~ pixbuf = pixbuf.scale_simple(wx, wy, gtk.gdk.INTERP_BILINEAR)
pixbuf = pixbuf.scale_simple(wx, wy, gtk.gdk.INTERP_NEAREST)
return pixbuf
def draw_cell(self, thumbnail_num, area, cr):
bounds = self.cell_bounds(thumbnail_num, cr)
ins = rectIntersect(bounds, area)
if not rectIntersect(bounds, area):
return
# a = GdkPixbuf.Pixbuf.new_from_file('/media/data/ph/marn2/DSC_0647.JPG')
# a = a.scale_simple(150, 150, GdkPixbuf.InterpType.BILINEAR)
# thumbnail = a.scale_simple(self.cell_width, self.cell_height, GdkPixbuf.InterpType.BILINEAR)
# Gdk.cairo_set_source_pixbuf(cr, a, a.get_width(), a.get_height())
# cr.paint()
# cr.stroke()
thumbnail = self.get_thumbnail_pixbuf(thumbnail_num)
selected = thumbnail_num in self.selection
if selected:
if self.has_focus():
cell_state = Gtk.StateFlags.SELECTED
else:
cell_state = Gtk.StateFlags.ACTIVE
else:
cell_state = Gtk.StateFlags.NORMAL
if thumbnail != self.loading_pixbuf:
cr.rectangle(bounds[0], bounds[1], bounds[2] - 1, bounds[3] - 1)
# self.style.paint_flat_box(self.bin_window, cell_state,
# gtk.SHADOW_OUT, area, self,
# 'ThumbnailsView',
# bounds.x, bounds.y,
# bounds.width - 1, bounds.height - 1)
def inflate(rect, x, y):
return (rect[0] - x, rect[1] - y, rect[2] + 2 * x, rect[3] + 2 * y)
#isFocused = False
if self.has_focus() and thumbnail_num == self.focus_cell:
focus = inflate(bounds, -3, -3)
# self.get_style().paint_focus(self.bin_window, cell_state,
# area, self, None, focus.x, focus.y,
# focus.width, focus.height)
#isFocused = True
region = (0, 0, 0, 0)
image_bounds = inflate(bounds, -CELL_BORDER_WIDTH, -CELL_BORDER_WIDTH)
if selected:
expansion = SELECTION_THICKNESS
else:
expansion = 0
boundsInflated = inflate(image_bounds, expansion + 1, expansion + 1)
image_bounds = rectIntersect(image_bounds, area)
if image_bounds[2]:
def fit(orig_width, orig_height, dest_width, dest_height):
if orig_width == 0 or orig_height == 0:
return 0, 0
scale = min(dest_width / orig_width, dest_height / orig_height)
if scale > 1:
scale = 1
fit_width = scale * orig_width
fit_height = scale * orig_height
return fit_width, fit_height
# resizing during the painting (pn.getThumb give some 160x160)
w, h = fit(thumbnail.get_width(), thumbnail.get_height(),
self.thumbnail_width, self.thumbnail_width)
# resizing during the extraction (pn.getThumb desired size)
# w, h = fit(thumbnail.get_width(), thumbnail.get_height(),
# 160, 160)
cr.set_line_width(1)
cr.set_source_rgb(0, 0, 0)
cr.rectangle(10, 10, 10, 10)
region = cr.rectangle(bounds[0], bounds[1], bounds[2], bounds[3])
region = bounds
# bounds.x + (bounds.width - w) / 2,
# bounds.y + self.thumbnail_height - h + CELL_BORDER_WIDTH,
# w, h)
# EXPAND WHEN SELECTED !
region = inflate(region, expansion, expansion)
region = (region[0], region[1], max(1,
region[2]), max(1, region[3]))
#a = GdkPixbuf.Pixbuf.new_from_file('/media/data/ph/marn2/DSC_0647.JPG')
if region[2] != thumbnail.get_width(
) and region[3] != thumbnail.get_height():
# the speedest
temp_thumbnail = thumbnail.scale_simple(
region[2], region[3], GdkPixbuf.InterpType.BILINEAR)
else:
temp_thumbnail = thumbnail
region = (region[0], region[1], temp_thumbnail.get_width(),
temp_thumbnail.get_height())
draw = inflate(region, 1, 1)
# if thumbnail != self.loading_pixbuf:
# self.style.paint_shadow(self.bin_window, cell_state,
# gtk.SHADOW_OUT, area, self,
# 'ThumbnailsView', draw.x,
# draw.y, draw.width, draw.height)
draw = rectIntersect(region, area)
if draw[2]:
cr.rectangle(draw[0], draw[1], draw[2], draw[3])
# Gdk.cairo_set_source_pixbuf(cr, a, draw[0], draw[1])
# cr.paint()
# cr.stroke()
# self.get_bin_window().draw_pixbuf(
# self.style.white_gc,
# temp_thumbnail,
# draw.x - region.x,
# draw.y - region.y,
# draw.x, draw.y,
# draw.width, draw.height,
# gtk.gdk.RGB_DITHER_NONE,
# draw.x, draw.y)
layout_bounds = (0, 0, 0, 0)
item = self.items[thumbnail_num]
if item:
layout = Pango.Layout(self.get_pango_context())
layout.set_font_description(self.get_style().font_desc)
t = self.get_text(thumbnail_num)
layout.set_text(t, len(t))
# ~ if isFocused:
layout.set_width((region[2] + 6) * 1000)
layout.set_wrap(1)
layout_bounds = (layout_bounds[0],
layout_bounds[1]) + layout.get_pixel_size()
lbX = bounds[0] + (bounds[2] - layout_bounds[2]) / 2
lbY = bounds[1] + bounds[3] - CELL_BORDER_WIDTH - layout_bounds[
3] + 3
layout_bounds = (lbX, lbY) + layout_bounds[2:]
region = rectIntersect(layout_bounds, area)
if region is None:
region = (0, 0, 0, 0)
if region[2]:
cr.rectangle(layout_bounds[0], layout_bounds[1],
layout_bounds[2], layout_bounds[3])
# self.style.paint_flat_box(self.bin_window, cell_state,
# gtk.SHADOW_OUT, area, self,
# 'ThumbnailsView',
# layout_bounds.x,
# layout_bounds.y,
# layout_bounds.width,
# layout_bounds.height)
#
# self.style.paint_layout(self.bin_window, cell_state,
# True, area, self,
# 'ThumbnailsView',
# layout_bounds.x,
# layout_bounds.y, layout)
def scroll_to(self, cell_num, center=True):
if not self.get_realized():
return
adjustment = self.get_vadjustment()
x, y = self.get_cell_position(cell_num)
if y + self.cell_height > adjustment.upper:
self.update_layout()
if center:
t = y + self.cell_height / 2 - adjustment.page_size / 2
if t < 0:
t = 0
elif t + adjustment.page_size > adjustment.upper:
t = adjustment.upper - adjustment.page_size
adjustment.value = t
else:
adjustment.value = y
class ThumbView(QWidget):
needThumb = pyqtSignal(int, str)
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())
def canvasResizeEvent(self, ev : QResizeEvent):
oldSize = ev.oldSize()
newSize = ev.size()
if oldSize.width() != newSize.width():
self.updateLayout(newSize.width())
def setItems(self, items):
self.items = items
nCells = len(items)
print('Set items: ', nCells)
self.layoutEngine.updateCells(nCells, 100, 100)
self.updateLayout(self.layoutEngine.getWidth())
self.w.repaint()
def updateLayout(self, width):
self.layoutEngine.updateWidth(width - 1)
height = self.layoutEngine.getHeight()
self.setCanvasSize(width, height)
def repaintCanvas(self):
self.w.repaint()
def setCanvasSize(self, w, h):
self.w.resize(w, h)
def canvasPaintEvent(self, ev : QPaintEvent):
print(self.counter, ' ', end='')
self.counter += 1
repaintRect = ev.rect()
repaintArea = Rectangle(repaintRect.x(), repaintRect.y(), repaintRect.width(),
repaintRect.height())
painter = QPainter(self.w)
thumbRequested = False
cells = self.layoutEngine.getVisibleCells(repaintArea)
for cellNum, cell in cells.items():
thumb = self.items[cellNum]
if thumb.getPath() in self.thumbs:
self.drawThumnail(cellNum, self.thumbs[thumb.getPath()], thumb, cell, painter)
else:
if not thumbRequested:
self.needThumb.emit(cellNum, thumb.getPath())
thumbRequested = True
self.drawThumnail(cellNum, self.noThumbPixmap, self.items[cellNum],
cell, painter)
def drawThumnail(self, cellNum, pic, thumb : PhotoNode, cell : Rectangle, painter : QPainter):
rect = QRect(cell.x, cell.y, cell.width, cell.height)
bLeft = rect.bottomLeft()
# draw name
fontHeight = 20
font = painter.font()
font.setPixelSize(fontHeight)
textTopRight = QPoint(bLeft.x(), bLeft.y() - fontHeight)
textRect = QRect(textTopRight, rect.bottomRight())
thumbName = thumb.name
painter.drawText(textRect, Qt.AlignHCenter, thumbName)
#painter.drawRect(rect)
# draw thumb
imageRect = QRect(rect.topLeft(), textRect.topRight())
imageCenter = imageRect.center()
imageX = int(imageCenter.x() - pic.width() / 2)
imageY = int(imageCenter.y() - pic.height() / 2)
imageOrigin = QPoint(imageX, imageY)
painter.drawPixmap(imageOrigin, pic)
@pyqtSlot(int, str, Image.Image)
def updateThumb(self, thumbId : int, path : str, pic : Image.Image):
thumb = ImageQt.toqimage(pic)
thumb = self.resizeImage(thumb, (self.thumbWidth, self.thumbHeight))
thumb = QPixmap.fromImage(thumb)
self.thumbs[path] = thumb
self.repaintCanvas()
def resizeImage(self, img : QImage, size : tuple):
x = img.width()
y = img.height()
if x <= size[0] and y <= size[1]:
return img
origK = img.height() / img.width()
if x > size[0]:
x = size[0]
y = int(origK * x)
if y > size[1]:
y = size[1]
x = (y / origK)
return img.scaled(x, y, transformMode=QtCore.Qt.SmoothTransformation)
