def selection_draw_callback(self, ctx: cairo.Context, x: int, y: int):
if self.interaction_mode == DrawerInteraction.CHUNKS:
# Draw a chunk
chunks_at_frame = self.animation_context.current()[self.edited_layer]
ctx.set_source_surface(
chunks_at_frame[self.interaction_chunks_selected_id], x, y
)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
elif self.interaction_mode == DrawerInteraction.COL:
# Draw collision
if self.interaction_col_solid:
ctx.set_source_rgba(1, 0, 0, 1)
ctx.rectangle(
x, y,
BPC_TILE_DIM,
BPC_TILE_DIM
)
ctx.fill()
elif self.interaction_mode == DrawerInteraction.DAT:
# Draw data
if self.interaction_dat_value > 0:
ctx.select_font_face("monospace", cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_NORMAL)
ctx.set_font_size(6)
ctx.set_source_rgb(1, 1, 1)
ctx.move_to(x, y + BPC_TILE_DIM - 2)
ctx.show_text(f"{self.interaction_dat_value:02x}")
def draw(self, wdg, ctx: cairo.Context, *args):
if self.surface:
ctx.fill()
ctx.set_source_surface(self.surface, 0, 0)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
return True
def selection_draw_callback(self, ctx: cairo.Context, x: int, y: int):
# Draw a chunk
chunks_at_frame = self.animation_context.current()[0]
ctx.set_source_surface(
chunks_at_frame[self.interaction_chunks_selected_id], x, y)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
def draw(self, wdg, ctx: cairo.Context, *args):
if self.surface:
wdg.set_size_request(self.surface.get_width(),
self.surface.get_height())
ctx.fill()
ctx.set_source_surface(self.surface, 0, 0)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
entry_tree: Gtk.TreeView = self.builder.get_object('entry_tree')
active_rows: List[Gtk.TreePath] = entry_tree.get_selection(
).get_selected_rows()[1]
for x in active_rows:
prop = self.entries[x.get_indices()[0]].get_properties()
if self.font.get_entry_image_size() > 12:
ctx.set_line_width(4)
ctx.set_source_rgba(0, 0, 0, 1)
ctx.rectangle((prop["char"]%16)*self.font.get_entry_image_size()*IMAGE_ZOOM, \
(prop["char"]//16)*self.font.get_entry_image_size()*IMAGE_ZOOM, prop["width"]*IMAGE_ZOOM, self.font.get_entry_image_size()*IMAGE_ZOOM)
ctx.stroke()
ctx.set_line_width(2)
if self.font.get_entry_image_size() > 12:
ctx.set_source_rgba(1, 1, 1, 1)
else:
ctx.set_source_rgba(1, 0, 0, 1)
ctx.rectangle((prop["char"]%16)*self.font.get_entry_image_size()*IMAGE_ZOOM, \
(prop["char"]//16)*self.font.get_entry_image_size()*IMAGE_ZOOM, prop["width"]*IMAGE_ZOOM, self.font.get_entry_image_size()*IMAGE_ZOOM)
ctx.stroke()
return True
def _draw_object_sprite(self, ctx: cairo.Context, obj: SsaObject, x, y):
"""Draws the sprite for an object"""
sprite = self.sprite_provider.get_for_object(obj.object.name, lambda: GLib.idle_add(self._redraw))[0]
ctx.translate(x, y)
ctx.set_source_surface(sprite)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
ctx.translate(-x, -y)
def draw(self, wdg, ctx: cairo.Context, *args):
if self.surface:
wdg.set_size_request(self.surface.get_width(), self.surface.get_height())
ctx.fill()
ctx.set_source_surface(self.surface, 0, 0)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
return True
def on_draw_icon_draw(self, widget: DrawingArea, ctx: cairo.Context):
scale = 2
ctx.scale(scale, scale)
ctx.set_source_surface(self.icon_surface)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
ctx.scale(1 / scale, 1 / scale)
return True
def on_draw(self, _widget: Gtk.Widget, cr: cairo.Context) -> bool:
if not self.frozen:
cr.set_source_rgba(self.color.red, self.color.green,
self.color.blue,
self.color.alpha - self.get_state())
cr.set_operator(cairo.OPERATOR_OVER)
cr.paint()
return False
def on_draw(self, index: int, widget: Gtk.DrawingArea, ctx: cairo.Context):
w16 = self._surfaces[index]
ctx.set_source_rgb(0, 0, 0)
ctx.rectangle(0, 0, *widget.get_size_request())
ctx.fill()
ctx.set_source_surface(w16)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
def draw(self, wdg, ctx: cairo.Context, do_translates=True):
ctx.set_antialias(cairo.Antialias.NONE)
ctx.scale(self.scale, self.scale)
chunk_width = self.tiling_width * DPCI_TILE_DIM
chunk_height = self.tiling_height * DPCI_TILE_DIM
# Background
if not self.use_pink_bg:
ctx.set_source_rgb(0, 0, 0)
else:
ctx.set_source_rgb(1.0, 0, 1.0)
ctx.rectangle(
0, 0, self.width_in_chunks * self.tiling_width * DPCI_TILE_DIM,
self.height_in_chunks * self.tiling_height * DPCI_TILE_DIM)
ctx.fill()
# Layers
for chunks_at_frame in self.animation_context.current():
for i, chunk_at_pos in enumerate(self.mappings):
if 0 < chunk_at_pos < len(chunks_at_frame):
chunk = chunks_at_frame[chunk_at_pos]
ctx.set_source_surface(chunk, 0, 0)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
if (i + 1) % self.width_in_chunks == 0:
# Move to beginning of next line
if do_translates:
ctx.translate(
-chunk_width * (self.width_in_chunks - 1),
chunk_height)
else:
# Move to next tile in line
if do_translates:
ctx.translate(chunk_width, 0)
# Move back to beginning
if do_translates:
ctx.translate(0, -chunk_height * self.height_in_chunks)
break
size_w, size_h = self.draw_area.get_size_request()
size_w /= self.scale
size_h /= self.scale
# Selection
self.selection_plugin.set_size(self.tiling_width * DPCI_TILE_DIM,
self.tiling_height * DPCI_TILE_DIM)
self.selection_plugin.draw(ctx, size_w, size_h, self.mouse_x,
self.mouse_y)
# Tile Grid
if self.draw_tile_grid:
self.tile_grid_plugin.draw(ctx, size_w, size_h, self.mouse_x,
self.mouse_y)
# Chunk Grid
if self.draw_chunk_grid:
self.chunk_grid_plugin.draw(ctx, size_w, size_h, self.mouse_x,
self.mouse_y)
return True
def on_draw_example_placeholder_draw(self, widget: Gtk.DrawingArea, ctx: cairo.Context):
sprite, x, y, w, h = self._sprite_provider.get_actor_placeholder(
9999, 0, lambda: GLib.idle_add(lambda: self.builder.get_object('draw_example_placeholder').queue_draw()) # type: ignore
)
ctx.set_source_surface(sprite)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
if widget.get_size_request() != (w, h):
widget.set_size_request(w, h)
def draw_background(ctx: cairo.Context, width: int, height: int):
# TODO: Add noise/cracks/stains
bg_color = RadialGradient([Color(0.84, 0.81, 0.74), Color(0.55, 0.50, 0.36)])
center_x = width / 2
center_y = height / 2
with source(ctx, bg_color.to_pattern(center_x, center_y, center_x)), operator(
ctx, cairo.Operator.DARKEN
):
ctx.paint()
def draw_icon(self, context: cairo.Context, icon: str, position: Tuple[int, int]):
image = cairo.ImageSurface.create_from_png(
os.path.join(os.path.dirname(__file__), "icons-7", f"{icon}.png")
)
context.save()
context.translate(*position)
context.set_source_surface(image)
context.paint()
context.restore()
def _surface_place_actor(self, ctx: cairo.Context, x, y, w, h):
ctx.set_line_width(1)
sprite_surface = self.sprite_provider.get_monster_outline(1, 1)[0]
ctx.translate(x, y)
ctx.set_source_surface(sprite_surface)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
self._draw_plus(ctx)
ctx.translate(-x, -y)
def draw(self, wdg, ctx: cairo.Context):
ctx.set_antialias(cairo.Antialias.NONE)
ctx.scale(self.scale, self.scale)
chunks_at_frame = self.animation_context.current()[0]
if 0 <= self.chunkidx < len(chunks_at_frame):
chunk = chunks_at_frame[self.chunkidx]
ctx.set_source_surface(chunk, 0, 0)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
def on_draw_sprite_draw(self, widget: Gtk.DrawingArea, ctx: cairo.Context):
scale = 2
sprite, x, y, w, h = self._sprite_provider.get_for_item(self.item_p, lambda: GLib.idle_add(widget.queue_draw))
ctx.scale(scale, scale)
ctx.set_source_surface(sprite)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
ctx.scale(1 / scale, 1 / scale)
if widget.get_size_request() != (w, h):
widget.set_size_request(w * scale, h * scale)
return True
def on_draw_portrait_draw(self, widget: Gtk.DrawingArea, ctx: cairo.Context):
scale = 2
portrait = self._portrait_provider.get(self.entry.md_index - 1, 0,
lambda: GLib.idle_add(widget.queue_draw), True)
ctx.scale(scale, scale)
ctx.set_source_surface(portrait)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
ctx.scale(1 / scale, 1 / scale)
if widget.get_size_request() != (IMG_DIM * scale, IMG_DIM * scale):
widget.set_size_request(IMG_DIM * scale, IMG_DIM * scale)
return True
def on_draw_sprite_draw(self, widget: Gtk.DrawingArea, ctx: cairo.Context):
if self.entry.entid > 0:
sprite, x, y, w, h = self._sprite_provider.get_monster(self.entry.md_index, 0,
lambda: GLib.idle_add(widget.queue_draw))
else:
sprite, x, y, w, h = self._sprite_provider.get_error()
ctx.set_source_surface(sprite)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
if widget.get_size_request() != (w, h):
widget.set_size_request(w, h)
return True
def draw(self, da, ctx:cairo.Context):
self.ctx = ctx
print('ok')
print(pixbuf)
Gdk.cairo_set_source_pixbuf(ctx, pixbuf, 0, 0)
ctx.paint()
ctx.set_source_rgb(255, 0, 0)
ctx.set_line_width(SIZE / 4)
ctx.set_tolerance(0.1)
ctx.set_line_join(cairo.LINE_JOIN_ROUND)
ctx.set_dash([SIZE / 4.0, SIZE / 4.0], 0)
self.stroke_shapes(ctx, 0, 0)
def draw(self, da, ctx: cairo.Context):
print('ok')
print(pixbuf)
Gdk.cairo_set_source_pixbuf(ctx, pixbuf, 0, 0)
ctx.paint()
ctx.set_source_rgb(255, 0, 0)
ctx.set_line_width(SIZE / 4)
ctx.set_tolerance(0.1)
ctx.set_line_join(cairo.LINE_JOIN_ROUND)
ctx.set_dash([SIZE / 4.0, SIZE / 4.0], 0)
self.stroke_shapes(ctx, 0, 0)
ctx.get_target().write_to_png('./a.png')
return True
def load_image_at_size(name, width, height):
"""Loads an image file at the specified size. Does NOT handle
exceptions!"""
from gi.repository import GdkPixbuf, Gdk
from cairo import ImageSurface, FORMAT_ARGB32, Context
pixbuf = GdkPixbuf.Pixbuf.new_from_file_at_size(name, width, height)
surface = ImageSurface(FORMAT_ARGB32, width, height)
ctx = Context(surface)
Gdk.cairo_set_source_pixbuf(ctx, pixbuf, 0, 0)
ctx.paint()
return surface
def on_draw_sprite_draw(self, widget: Gtk.DrawingArea, ctx: cairo.Context):
if not self._drawing_is_active:
return True
scale = 4
sprite, x, y, w, h = self._get_sprite_anim()
ctx.scale(scale, scale)
ctx.set_source_surface(sprite)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
ww, wh = widget.get_size_request()
if ww < w or wh < h:
widget.set_size_request(w * scale, h * scale)
ctx.scale(1 / scale, 1 / scale)
return True
def _draw_actor_sprite(self, ctx: cairo.Context, actor: SsaActor, x, y):
"""Draws the sprite for an actor"""
if actor.actor.entid == 0:
sprite = self.sprite_provider.get_actor_placeholder(
actor.actor.id, actor.pos.direction.id, self._redraw)[0]
else:
sprite = self.sprite_provider.get_monster(
actor.actor.entid, actor.pos.direction.id,
lambda: GLib.idle_add(self._redraw))[0]
ctx.translate(x, y)
ctx.set_source_surface(sprite)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
ctx.translate(-x, -y)
def drawcell(self, cairo_ctx: cairo.Context, i, j):
"""Draw the cell at i, j, using the supplied graphics context."""
tile = self.showboard[i + j * xsize]
i = i * self.tilesize
j = j * self.tilesize
if (tile == "blank"):
cairo_ctx.set_source_rgb(1, 1, 1)
cairo_ctx.rectangle(i, j, self.tilesize, self.tilesize)
cairo_ctx.fill()
else:
Gdk.cairo_set_source_pixbuf(cairo_ctx, self.get_image(tile), i, j)
cairo_ctx.paint()
def do_draw(self,
cr: cairo.Context,
width: int = 0,
height: int = 0) -> bool:
if not self._model:
return False
if not self._back_buffer:
return False
cr.set_source_surface(self._back_buffer, 0, 0)
cr.paint()
return False
def on_draw(self, subindex: int, widget: Gtk.DrawingArea,
ctx: cairo.Context):
scale = 2
portrait = self._portrait_provider.get(
self.item_id, subindex, lambda: GLib.idle_add(widget.queue_draw),
False)
ctx.set_source_rgb(1, 1, 1)
ctx.rectangle(0, 0, *widget.get_size_request())
ctx.fill()
ctx.scale(scale, scale)
ctx.set_source_surface(portrait)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
ctx.scale(1 / scale, 1 / scale)
return True
def _do_draw(self, cr: cairo.Context) -> None:
pixbuf = self.props.pixbuf
if pixbuf is None:
return
scale = self._parent._widget_dist_from_canvas((1, 1))
offset = self._parent._widget_coord_from_canvas((0, 0))
with cairo_saved(cr):
cr.translate(*offset)
cr.scale(*scale)
Gdk.cairo_set_source_pixbuf(cr, pixbuf, pixbuf_x=0, pixbuf_y=0)
cr.get_source().set_filter(cairo.Filter.FAST)
cr.paint()
class MapSurface(object):
"""wrapper to render the map to svg/png"""
def __init__(self, hexmap=None, filename=None, width=None, height=None, size=None):
self.hexmap = hexmap
if self.hexmap is None:
raise ValueError("No map was passed to {}".format(self.__class__.__name__))
self.surface_name = filename or "test.svg"
self.size = size or 32.0
self.surface_width = width
if self.surface_width is None:
self.surface_width = (self.hexmap.map.cols + .5) * self.size * SQRT3
self.surface_height = height
if self.surface_height is None:
self.surface_height = (self.hexmap.map.rows * 1.5 + .25) * self.size
self.layer = []
# build base map
self.surface = SVGSurface(self.surface_name + ".svg", self.surface_width, self.surface_height)
self.context = Context(self.surface)
# background: magenta
self.context.save()
self.context.set_source_rgb(1.0, 0.0, 1.0)
self.context.paint()
self.context.restore()
def add_layer(self, renderer_cls, position=None):
if not position:
self.layer.append(renderer_cls(self))
else:
self.layer.insert(position, renderer_cls(self))
def render(self):
print "Rendering {} ({}x{})".format(self.surface_name, self.surface_width, self.surface_height)
for renderer in self.layer:
renderer.render()
def finalise(self, with_png=False):
print "finalising:"
if with_png is True:
print "PNG"
self.surface.write_to_png(self.surface_name + ".png")
print "SVG"
self.surface.finish()
print "DONE!"
def draw(self, wdg, ctx: cairo.Context):
ctx.set_antialias(cairo.Antialias.NONE)
ctx.scale(self.scale, self.scale)
# Background
if self.map_bg is not None:
if self.level_id == WORLD_MAP_DEFAULT_ID:
# We display the bottom right of the map.
ctx.set_source_surface(self.map_bg, -504, -1008)
else:
ctx.set_source_surface(self.map_bg, 0, 0)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
size_w, size_h = self.draw_area.get_size_request()
size_w /= self.scale
size_h /= self.scale
# Tile Grid
if self.draw_tile_grid:
self.tile_grid_plugin.draw(ctx, size_w, size_h, self.mouse_x,
self.mouse_y)
# Selection
self._handle_selection(ctx)
# RENDER MARKERS
self.markers_at_pos = {}
for i, marker in enumerate(self.markers):
if marker != self._editing and marker != self._hide and marker.level_id == self.level_id and marker.reference_id <= -1:
self._draw_marker(ctx, marker)
if self._editing:
# Black out
ctx.set_source_rgba(0, 0, 0, 0.5)
ctx.rectangle(0, 0, size_w, size_h)
ctx.fill()
# Render editing marker
self._draw_marker(ctx, self._editing)
# nah, too crowded.
#for (x, y), list_of_markers in self.markers_at_pos.items():
# ms = [self.markers.index(m) for m in list_of_markers]
# self._draw_name(ctx, ms, x, y)
return True
def paint_image(self, img, x, y, w, h):
#roundtrip via png (yuk)
from io import BytesIO
png = BytesIO()
img.save(png, format="PNG")
reader = BytesIO(png.getvalue())
png.close()
img = ImageSurface.create_from_png(reader)
gc = Context(self.backing)
gc.rectangle(x, y, w, h)
gc.clip()
gc.set_operator(OPERATOR_CLEAR)
gc.rectangle(x, y, w, h)
gc.fill()
gc.set_operator(OPERATOR_SOURCE)
gc.translate(x, y)
gc.rectangle(0, 0, w, h)
gc.set_source_surface(img, x, y)
gc.paint()
def screen(self, base_w, base_h, ctx: cairo.Context, display_id: int):
if display_id == 0:
self.decode_screen()
ctx.translate(base_w * self._scale / 2, base_h * self._scale / 2)
ctx.rotate(-radians(self._screen_rotation_degrees))
if self._screen_rotation_degrees == 90 or self._screen_rotation_degrees == 270:
ctx.translate(-base_h * self._scale / 2, -base_w * self._scale / 2)
else:
ctx.translate(-base_w * self._scale / 2, -base_h * self._scale / 2)
ctx.scale(self._scale, self._scale)
if display_id == 0:
ctx.set_source_surface(self._upper_image)
else:
ctx.set_source_surface(self._lower_image)
ctx.get_source().set_filter(cairo.Filter.NEAREST)
ctx.paint()
if self._after_render_hook:
self._after_render_hook(ctx, display_id)
def do_draw(self, context: cairo.Context) -> bool:
if not self.adjustment or self.adjustment.get_upper() <= 0:
return False
height = self.get_allocated_height()
width = self.get_allocated_width()
if width <= 0 or height <= 0:
return False
base_bg, base_outline, handle_overdraw, handle_outline = (
self.get_map_base_colors())
x0 = self.overdraw_padding + 0.5
x1 = width - 2 * x0
height_scale = height * self.get_height_scale()
if self._cached_map is None:
surface = cairo.Surface.create_similar(
context.get_target(), cairo.CONTENT_COLOR_ALPHA, width, height)
cache_ctx = cairo.Context(surface)
cache_ctx.set_line_width(1)
cache_ctx.rectangle(x0, -0.5, x1, height_scale + 0.5)
cache_ctx.set_source_rgba(*base_bg)
cache_ctx.fill()
# We get drawing coordinates by tag to minimise our source
# colour setting, and make this loop slightly cleaner.
tagged_diffs = self.chunk_coords_by_tag()
for tag, diffs in tagged_diffs.items():
cache_ctx.set_source_rgba(*self.fill_colors[tag])
for y0, y1 in diffs:
y0 = round(y0 * height_scale) + 0.5
y1 = round(y1 * height_scale) - 0.5
cache_ctx.rectangle(x0, y0, x1, y1 - y0)
cache_ctx.fill_preserve()
cache_ctx.set_source_rgba(*self.line_colors[tag])
cache_ctx.stroke()
cache_ctx.rectangle(x0, -0.5, x1, height_scale + 0.5)
cache_ctx.set_source_rgba(*base_outline)
cache_ctx.stroke()
self._cached_map = surface
context.set_source_surface(self._cached_map, 0, 0)
context.paint()
# Draw our scroll position indicator
context.set_line_width(1)
context.set_source_rgba(*handle_overdraw)
adj_y = self.adjustment.get_value() / self.adjustment.get_upper()
adj_h = self.adjustment.get_page_size() / self.adjustment.get_upper()
context.rectangle(
x0 - self.overdraw_padding, round(height_scale * adj_y) + 0.5,
x1 + 2 * self.overdraw_padding, round(height_scale * adj_h) - 1,
)
context.fill_preserve()
context.set_source_rgba(*handle_outline)
context.stroke()
return True
def make_label(text, filename, size=12, angle=0):
'''
Parameters:
-----------
text : string
Text to be displayed
filename : string
Path to a font
size : int
Font size in 1/64th points
angle : float
Text angle in degrees
'''
face = Face(filename)
face.set_char_size( size*64 )
# FT_Angle is a 16.16 fixed-point value expressed in degrees.
angle = FT_Angle(angle * 65536)
matrix = FT_Matrix( FT_Cos( angle ),
- FT_Sin( angle ),
FT_Sin( angle ) ,
FT_Cos( angle ) )
flags = FT_LOAD_RENDER
pen = FT_Vector(0,0)
FT_Set_Transform( face._FT_Face, byref(matrix), byref(pen) )
previous = 0
xmin, xmax = 0, 0
ymin, ymax = 0, 0
for c in text:
face.load_char(c, flags)
kerning = face.get_kerning(previous, c)
previous = c
bitmap = face.glyph.bitmap
pitch = face.glyph.bitmap.pitch
width = face.glyph.bitmap.width
rows = face.glyph.bitmap.rows
top = face.glyph.bitmap_top
left = face.glyph.bitmap_left
pen.x += kerning.x
x0 = (pen.x >> 6) + left
x1 = x0 + width
y0 = (pen.y >> 6) - (rows - top)
y1 = y0 + rows
xmin, xmax = min(xmin, x0), max(xmax, x1)
ymin, ymax = min(ymin, y0), max(ymax, y1)
pen.x += face.glyph.advance.x
pen.y += face.glyph.advance.y
L = ImageSurface(FORMAT_A8, xmax-xmin, ymax-ymin)
previous = 0
pen.x, pen.y = 0, 0
ctx = Context(L)
for c in text:
face.load_char(c, flags)
kerning = face.get_kerning(previous, c)
previous = c
bitmap = face.glyph.bitmap
pitch = face.glyph.bitmap.pitch
width = face.glyph.bitmap.width
rows = face.glyph.bitmap.rows
top = face.glyph.bitmap_top
left = face.glyph.bitmap_left
pen.x += kerning.x
x = (pen.x >> 6) - xmin + left
y = - (pen.y >> 6) + ymax - top
if (width > 0):
glyph_surface = make_image_surface(face.glyph.bitmap)
ctx.set_source_surface(glyph_surface, x, y)
ctx.paint()
pen.x += face.glyph.advance.x
pen.y += face.glyph.advance.y
L.flush()
return L
def generateOverlay(text,
font,
showFlumotion,
showCC,
showXiph,
width, height):
"""Generate an transparent image with text + logotypes rendered on top
of it suitable for mixing into a video stream
@param text: text to put in the top left corner
@type text: str
@param font: font description used to render the text
@type: str
@param showFlumotion: if we should show the flumotion logo
@type showFlumotion: bool
@param showCC: if we should show the Creative Common logo
@type showCC: bool
@param showXiph: if we should show the xiph logo
@type showXiph: bool
@param width: width of the image to generate
@type width: int
@param height: height of the image to generate
@type height: int
@returns: raw image and if images or if text overflowed
@rtype: 3 sized tuple of string and 2 booleans
"""
from cairo import ImageSurface
from cairo import Context
image = ImageSurface(cairo.FORMAT_ARGB32, width, height)
context = Context(image)
subImages = []
if showXiph:
subImages.append(os.path.join(configure.imagedir, '36x36', 'xiph.png'))
if showCC:
subImages.append(os.path.join(configure.imagedir, '36x36', 'cc.png'))
if showFlumotion:
subImages.append(os.path.join(configure.imagedir, '36x36',
'fluendo.png'))
imagesOverflowed = False
offsetX = BORDER
for subPath in subImages:
sub = ImageSurface.create_from_png(subPath)
subX = sub.get_width()
subY = sub.get_height()
offsetY = height - subY - BORDER
context.set_source_surface(sub, offsetX, offsetY)
context.paint()
if (offsetX + subX) > width:
imagesOverflowed = True
offsetX += subX + BORDER
textOverflowed = False
if text:
pcContext = pangocairo.CairoContext(context)
pangoLayout = pcContext.create_layout()
if font is not None:
font = pango.FontDescription(font)
if not font.get_family() or \
not font.get_family().lower() in [family.get_name().lower()
for family in pangoLayout.get_context().list_families()]:
font.set_family(FONT)
if font.get_size() == 0:
font.set_size(FONT_SIZE)
else:
font = pango.FontDescription('%s %s' % (FONT, FONT_PROPS))
pangoLayout.set_font_description(font)
context.move_to(TEXT_XOFFSET+2, TEXT_YOFFSET+2)
pangoLayout.set_markup('<span foreground="black" >%s</span>' % text)
pcContext.show_layout(pangoLayout)
context.move_to(TEXT_XOFFSET, TEXT_YOFFSET)
pangoLayout.set_markup('<span foreground="white" >%s</span>' % text)
pcContext.show_layout(pangoLayout)
textWidth, textHeight = pangoLayout.get_pixel_size()
if textWidth > width:
textOverflowed = True
if cairo.version < '1.2.6':
buf = image.get_data_as_rgba()
else:
buf = image.get_data()
return buf, imagesOverflowed, textOverflowed
raise RuntimeError('pitch != width * 4 for color bitmap: Please report this.')
bitmap = np.array(bitmap.buffer, dtype=np.uint8).reshape((bitmap.rows,bitmap.width,4))
I = ImageSurface(FORMAT_ARGB32, width, rows)
try:
ndI = np.ndarray(shape=(rows,width), buffer=I.get_data(),
dtype=np.uint32, order='C',
strides=[I.get_stride(), 4])
except NotImplementedError:
raise SystemExit("For python 3.x, you need pycairo >= 1.11+ (from https://github.com/pygobject/pycairo)")
# Although both are 32-bit, cairo is host-order while
# freetype is small endian.
ndI[:,:] = bitmap[:,:,3] * 2**24 + bitmap[:,:,2] * 2**16 + bitmap[:,:,1] * 2**8 + bitmap[:,:,0]
I.mark_dirty()
surface = ImageSurface(FORMAT_ARGB32, 2*width, rows)
ctx = Context(surface)
ctx.set_source_surface(I, 0, 0)
ctx.paint()
ctx.set_source_surface(I, width/2, 0)
ctx.paint()
ctx.set_source_surface(I, width , 0)
ctx.paint()
surface.write_to_png("emoji-color-cairo.png")
Image.open("emoji-color-cairo.png").show()
