def _draw_labels(ctx, map_grid, map_area_width_dots, map_area_height_dots, grid_legend_margin_dots): """ Draw the Grid labels at current position. Args: ctx (cairo.Context): The cairo context to use to draw. map_grid (Grid): the grid objects whose labels we want to draw. map_area_width_dots/map_area_height_dots (numbers): size of the map (cairo units). grid_legend_margin_dots (number): margin between border of map and grid labels (cairo units). """ ctx.save() step_horiz = map_area_width_dots / map_grid.horiz_count last_horiz_portion = math.modf(map_grid.horiz_count)[0] step_vert = map_area_height_dots / map_grid.vert_count last_vert_portion = math.modf(map_grid.vert_count)[0] ctx.set_font_size(min(0.75 * grid_legend_margin_dots, 0.5 * step_horiz)) for i, label in enumerate(map_grid.horizontal_labels): x = i * step_horiz if i < len(map_grid.horizontal_labels) - 1: x += step_horiz/2.0 elif last_horiz_portion >= 0.3: x += step_horiz * last_horiz_portion/2.0 else: continue draw_utils.draw_simpletext_center(ctx, label, x, grid_legend_margin_dots/2.0) draw_utils.draw_simpletext_center(ctx, label, x, map_area_height_dots - grid_legend_margin_dots/2.0) for i, label in enumerate(map_grid.vertical_labels): y = i * step_vert if i < len(map_grid.vertical_labels) - 1: y += step_vert/2.0 elif last_vert_portion >= 0.3: y += step_vert * last_vert_portion/2.0 else: continue draw_utils.draw_simpletext_center(ctx, label, grid_legend_margin_dots/2.0, y) draw_utils.draw_simpletext_center(ctx, label, map_area_width_dots - grid_legend_margin_dots/2.0, y) ctx.restore()
def _render_blank_page(self, ctx, cairo_surface, dpi): """ Render a blank page with a nice "intentionally blank" notice """ ctx.save() ctx.translate( commons.convert_pt_to_dots(Renderer.PRINT_SAFE_MARGIN_PT), commons.convert_pt_to_dots(Renderer.PRINT_SAFE_MARGIN_PT)) # footer notice w = self._usable_area_width_pt h = self._usable_area_height_pt ctx.set_source_rgb(.6,.6,.6) draw_utils.draw_simpletext_center(ctx, _('This page is intentionally left '\ 'blank.'), w/2.0, 0.95*h) draw_utils.render_page_number(ctx, 2, self._usable_area_width_pt, self._usable_area_height_pt, self.grayed_margin_pt, transparent_background=False) cairo_surface.show_page() ctx.restore()