def __init__(self, parent):
gtk.DrawingArea.__init__(self)
self.mw = parent
self.presenter = parent.presenter
self.eventloop = self.presenter.eventloop
self.app = self.presenter.app
self.modify_bg(gtk.STATE_NORMAL, gtk.gdk.Color("#ffffff"))
self.add_events(gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.POINTER_MOTION_MASK
| gtk.gdk.BUTTON_RELEASE_MASK | gtk.gdk.SCROLL_MASK)
self.connect('button_press_event', self.mousePressEvent)
self.connect('motion_notify_event', self.mouseMoveEvent)
self.connect('button_release_event', self.mouseReleaseEvent)
self.connect('scroll-event', self.wheelEvent)
self.connect('expose_event', self.repaint)
self.trafo = [1.0, 0.0, 0.0, 1.0, 0.0, 0.0]
self.mw.h_adj.connect('value_changed', self.hscroll)
self.mw.v_adj.connect('value_changed', self.vscroll)
self.doc = self.presenter.model
self.renderer = PDRenderer(self)
self.my_change = False
self.ctrls = self.init_controllers()
self.eventloop.connect(self.eventloop.DOC_MODIFIED, self.repaint)
self.eventloop.connect(self.eventloop.SELECTION_CHANGED,
self.selection_repaint)
class AppCanvas(gtk.DrawingArea):
mw = None
matrix = None
trafo = []
zoom = 1.0
width = 0
height = 0
mode = None
previous_mode = None
controller = None
ctrls = None
orig_cursor = None
current_cursor = None
resize_marker = 0
stroke_view = True
draft_view = False
def __init__(self, parent):
gtk.DrawingArea.__init__(self)
self.mw = parent
self.presenter = parent.presenter
self.eventloop = self.presenter.eventloop
self.app = self.presenter.app
self.modify_bg(gtk.STATE_NORMAL, gtk.gdk.Color("#ffffff"))
self.add_events(gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.POINTER_MOTION_MASK
| gtk.gdk.BUTTON_RELEASE_MASK | gtk.gdk.SCROLL_MASK)
self.connect('button_press_event', self.mousePressEvent)
self.connect('motion_notify_event', self.mouseMoveEvent)
self.connect('button_release_event', self.mouseReleaseEvent)
self.connect('scroll-event', self.wheelEvent)
self.connect('expose_event', self.repaint)
self.trafo = [1.0, 0.0, 0.0, 1.0, 0.0, 0.0]
self.mw.h_adj.connect('value_changed', self.hscroll)
self.mw.v_adj.connect('value_changed', self.vscroll)
self.doc = self.presenter.model
self.renderer = PDRenderer(self)
self.my_change = False
self.ctrls = self.init_controllers()
self.eventloop.connect(self.eventloop.DOC_MODIFIED, self.repaint)
self.eventloop.connect(self.eventloop.SELECTION_CHANGED,
self.selection_repaint)
def init_controllers(self):
dummy = controllers.AbstractController(self, self.presenter)
ctrls = {
modes.SELECT_MODE:
controllers.SelectController(self, self.presenter),
modes.SHAPER_MODE:
dummy,
modes.ZOOM_MODE:
controllers.ZoomController(self, self.presenter),
modes.FLEUR_MODE:
controllers.FleurController(self, self.presenter),
modes.PICK_MODE:
controllers.PickController(self, self.presenter),
modes.LINE_MODE:
dummy,
modes.CURVE_MODE:
dummy,
modes.RECT_MODE:
creators.RectangleCreator(self, self.presenter),
modes.ELLIPSE_MODE:
creators.EllipseCreator(self, self.presenter),
modes.TEXT_MODE:
creators.TextBlockCreator(self, self.presenter),
modes.POLYGON_MODE:
creators.PolygonCreator(self, self.presenter),
modes.MOVE_MODE:
controllers.MoveController(self, self.presenter),
modes.RESIZE_MODE:
controllers.TransformController(self, self.presenter),
}
return ctrls
def set_mode(self, mode=modes.SELECT_MODE):
if not mode == self.mode:
self.mode = mode
self.controller = self.ctrls[mode]
self.controller.set_cursor()
events.emit(events.MODE_CHANGED, mode)
def set_temp_mode(self, mode=modes.SELECT_MODE, callback=None):
if not mode == self.mode:
self.previous_mode = self.mode
self.mode = mode
self.controller = self.ctrls[mode]
self.controller.callback = callback
self.controller.set_cursor()
def restore_mode(self):
if not self.previous_mode is None:
self.set_mode(self.previous_mode)
self.previous_mode = None
def set_canvas_cursor(self, mode):
self.current_cursor = self.app.cursors[mode]
self.window.set_cursor(self.current_cursor)
def set_temp_cursor(self, cursor):
self.orig_cursor = self.app.cursors[self.mode]
self.current_cursor = cursor
self.window.set_cursor(cursor)
def restore_cursor(self):
if not self.orig_cursor is None:
self.window.set_cursor(self.orig_cursor)
self.current_cursor = self.orig_cursor
self.orig_cursor = None
def _scrolling(self, *args):
m11, m12, m21, m22, dx_old, dy_old = self.trafo
yval = float(self.mw.v_adj.get_value()) * m11
xval = float(self.mw.h_adj.get_value()) * m11
dx = -xval
dy = -yval
if dx - dx_old or dy - dy_old:
self.trafo = [m11, m12, m21, m22, dx, dy]
self.matrix = cairo.Matrix(m11, m12, m21, m22, dx, dy)
self.force_redraw()
def vscroll(self, *args):
m11, m12, m21, m22, dx, dy = self.trafo
val = float(self.mw.v_adj.get_value()) * m11
dy = -val
self.trafo = [m11, m12, m21, m22, dx, dy]
self.matrix = cairo.Matrix(m11, m12, m21, m22, dx, dy)
self.force_redraw()
def hscroll(self, *args):
m11, m12, m21, m22, dx, dy = self.trafo
val = float(self.mw.h_adj.get_value()) * m11
dx = -val
self.trafo = [m11, m12, m21, m22, dx, dy]
self.matrix = cairo.Matrix(m11, m12, m21, m22, dx, dy)
self.force_redraw()
def update_scrolls(self):
x, y = self.win_to_doc()
m11 = self.trafo[0]
dx = dy = OFFSET / m11
self.mw.h_adj.set_lower(-dx)
self.mw.h_adj.set_upper(WORKSPACE_WIDTH)
self.mw.h_adj.set_page_size(self.width / m11)
self.mw.h_adj.set_step_increment(self.width / (m11 * 10.0))
self.my_change = True
self.mw.h_adj.set_value(x)
self.mw.v_adj.set_lower(-WORKSPACE_HEIGHT)
self.mw.v_adj.set_upper(dy)
self.mw.v_adj.set_page_size(self.height / m11)
self.mw.v_adj.set_step_increment(self.height / (m11 * 10.0))
self.my_change = True
# self.mw.v_adj.set_value(-self.height / m11 + dy)
self.mw.v_adj.set_value(-y)
def _keep_center(self):
x, y, w, h = self.allocation
w = float(w)
h = float(h)
if not w == self.width or not h == self.height:
_dx = (w - self.width) / 2.0
_dy = (h - self.height) / 2.0
m11, m12, m21, m22, dx, dy = self.trafo
dx += _dx
if dx > OFFSET: dx = OFFSET
dy += _dy
if dy < h - OFFSET: dy = h - OFFSET
self.trafo = [m11, m12, m21, m22, dx, dy]
self.matrix = cairo.Matrix(m11, m12, m21, m22, dx, dy)
self.width = w
self.height = h
self.update_scrolls()
def _set_center(self, center):
x, y = center
_dx = self.width / 2.0 - x
_dy = self.height / 2.0 - y
m11, m12, m21, m22, dx, dy = self.trafo
dx += _dx
dy += _dy
self.trafo = [m11, m12, m21, m22, dx, dy]
self.matrix = cairo.Matrix(m11, m12, m21, m22, dx, dy)
self.update_scrolls()
def doc_to_win(self, point=[0.0, 0.0]):
x, y = point
m11, m12, m21, m22, dx, dy = self.trafo
x_new = m11 * x + dx
y_new = m22 * y + dy
return [x_new, y_new]
def win_to_doc(self, point=[0, 0]):
x, y = point
x = float(x)
y = float(y)
m11, m12, m21, m22, dx, dy = self.trafo
x_new = (x - dx) / m11
y_new = (y - dy) / m22
return [x_new, y_new]
def _fit_to_page(self):
height = config.plotter_page_height
x, y, w, h = self.allocation
w = float(w)
h = float(h)
self.width = w
self.height = h
zoom = h / height * PAGEFIT
dx = OFFSET
dy = h - OFFSET
self.trafo = [zoom, 0, 0, -zoom, dx, dy]
self.matrix = cairo.Matrix(zoom, 0, 0, -zoom, dx, dy)
self.zoom = zoom
self.update_scrolls()
def zoom_fit_to_page(self):
self._fit_to_page()
self.force_redraw()
def _zoom(self, dzoom=1.0):
m11, m12, m21, m22, dx, dy = self.trafo
m11 *= dzoom
_dx = (self.width * dzoom - self.width) / 2.0
_dy = (self.height * dzoom - self.height) / 2.0
dx = dx * dzoom - _dx
dy = dy * dzoom - _dy
if dx > OFFSET: dx = OFFSET
if dy < self.height - OFFSET: dy = self.height - OFFSET
self.trafo = [m11, m12, m21, -m11, dx, dy]
self.matrix = cairo.Matrix(m11, m12, m21, -m11, dx, dy)
self.zoom = m11
self.update_scrolls()
self.force_redraw()
def zoom_in(self):
self._zoom(ZOOM_IN)
def zoom_out(self):
self._zoom(ZOOM_OUT)
def zoom_100(self):
self._zoom(1.0 / self.zoom)
def zoom_at_point(self, point, zoom):
self._set_center(point)
self._zoom(zoom)
def zoom_to_rectangle(self, start, end):
x, y, w, h = self.allocation
w = float(w)
h = float(h)
self.width = w
self.height = h
width = abs(end[0] - start[0])
height = abs(end[1] - start[1])
zoom = min(w / width, h / height) * 0.95
center = [
start[0] + (end[0] - start[0]) / 2,
start[1] + (end[1] - start[1]) / 2
]
self._set_center(center)
self._zoom(zoom)
def zoom_selected(self):
x0, y0, x1, y1 = self.presenter.selection.frame
start = self.doc_to_win([x0, y0])
end = self.doc_to_win([x1, y1])
self.zoom_to_rectangle(start, end)
def select_at_point(self, point, flag=False):
point = self.win_to_doc(point)
self.presenter.selection.select_at_point(point, flag)
def pick_at_point(self, point):
point = self.win_to_doc(point)
return self.presenter.selection.pick_at_point(point)
def select_by_rect(self, start, end, flag=False):
start = self.win_to_doc(start)
end = self.win_to_doc(end)
rect = start + end
rect = normalize_bbox(rect)
self.presenter.selection.select_by_rect(rect, flag)
def force_redraw(self):
self.queue_draw()
self.eventloop.emit(self.eventloop.VIEW_CHANGED)
def repaint(self, *args):
if self.matrix is None:
self.zoom_fit_to_page()
self.set_mode(modes.SELECT_MODE)
self._keep_center()
self.renderer.paint_document()
def selection_repaint(self, *args):
self.renderer.paint_selection()
#==============EVENT CONTROLLING==========================
def mouseDoubleClickEvent(self, widget, event):
pass
def mouseMoveEvent(self, widget, event):
self.controller.mouse_move(event)
def mousePressEvent(self, widget, event):
self.controller.set_cursor()
self.controller.mouse_down(event)
def mouseReleaseEvent(self, widget, event):
self.controller.mouse_up(event)
def wheelEvent(self, widget, event):
self.controller.wheel(event)
def keyPressEvent(self, widget, event):
pass
def keyReleaseEvent(self, widget, event):
pass