kopia lustrzana https://github.com/hholzgra/ocitysmap
Print page number at bottom of multi-page map index
Signed-off-by: David MENTRE <dmentre@linux-france.org>stable
David MENTRE
Thomas Petazzoni
rodzic
808a6748e2
commit
8379cd7862
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@ -24,6 +24,8 @@
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import cairo
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import pango
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import ocitysmap2.layoutlib.commons as commons
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from ocitysmap2.layoutlib.abstract_renderer import Renderer
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def draw_text(ctx, pc, layout, fascent, fheight,
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baseline_x, baseline_y, text, pango_alignment):
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@ -130,3 +132,33 @@ def draw_dotted_line(ctx, line_width, baseline_x, baseline_y, length):
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ctx.move_to(baseline_x, baseline_y)
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ctx.rel_line_to(length, 0)
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ctx.stroke()
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def render_page_number(ctx, page_number,
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usable_area_width_pt, usable_area_height_pt, margin_pt,
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transparent_background = True):
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"""
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Render page number
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"""
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ctx.save()
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x_offset = 0
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if page_number % 2:
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x_offset += commons.convert_pt_to_dots(usable_area_width_pt)\
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- commons.convert_pt_to_dots(margin_pt)
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y_offset = commons.convert_pt_to_dots(usable_area_height_pt)\
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- commons.convert_pt_to_dots(margin_pt)
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ctx.translate(x_offset, y_offset)
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if transparent_background:
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ctx.set_source_rgba(1, 1, 1, 0.6)
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else:
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ctx.set_source_rgba(0.8, 0.8, 0.8, 0.6)
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ctx.rectangle(0, 0, commons.convert_pt_to_dots(margin_pt),
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commons.convert_pt_to_dots(margin_pt))
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ctx.fill()
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ctx.set_source_rgba(0, 0, 0, 1)
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x_offset = commons.convert_pt_to_dots(margin_pt)/2
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y_offset = commons.convert_pt_to_dots(margin_pt)/2
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ctx.translate(x_offset, y_offset)
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Renderer._draw_centered_text(ctx, unicode(page_number), 0, 0)
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ctx.restore()
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@ -22,6 +22,12 @@ import ocitysmap2.layoutlib.commons as UTILS
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import pango
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import pangocairo
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import math
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import draw_utils
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from ocitysmap2.layoutlib.abstract_renderer import Renderer
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# FIXME: refactoring
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# We use the same 10mm as GRAYED_MARGIN_MM in the map multi-page renderer
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PAGE_NUMBER_MARGIN_PT = UTILS.convert_mm_to_pt(10)
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class MultiPageStreetIndexRenderer:
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"""
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@ -31,7 +37,8 @@ class MultiPageStreetIndexRenderer:
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# ctx: Cairo context
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# surface: Cairo surface
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def __init__(self, i18n, ctx, surface, index_categories, rendering_area):
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def __init__(self, i18n, ctx, surface, index_categories, rendering_area,
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page_number):
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self._i18n = i18n
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self.ctx = ctx
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self.surface = surface
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@ -40,6 +47,7 @@ class MultiPageStreetIndexRenderer:
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self.rendering_area_y = rendering_area[1]
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self.rendering_area_w = rendering_area[2]
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self.rendering_area_h = rendering_area[3]
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self.page_number = page_number
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def _create_layout_with_font(self, pc, font_desc):
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layout = pc.create_layout()
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@ -54,6 +62,22 @@ class MultiPageStreetIndexRenderer:
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return layout, fascent, fheight, em
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def _draw_page_number(self):
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self.ctx.save()
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self.ctx.translate(Renderer.PRINT_SAFE_MARGIN_PT,
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Renderer.PRINT_SAFE_MARGIN_PT)
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draw_utils.render_page_number(self.ctx, self.page_number,
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self.rendering_area_w,
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self.rendering_area_h,
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PAGE_NUMBER_MARGIN_PT,
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transparent_background = False)
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self.ctx.restore()
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def _new_page(self):
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self.surface.show_page()
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self.page_number = self.page_number + 1
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self._draw_page_number()
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def render(self, dpi = UTILS.PT_PER_INCH):
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self.ctx.save()
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@ -104,6 +128,7 @@ class MultiPageStreetIndexRenderer:
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# Find best number of columns
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max_drawing_width = \
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max_label_drawing_width + max_location_drawing_width + 2 * margin
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max_drawing_height = self.rendering_area_h - PAGE_NUMBER_MARGIN_PT
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columns_count = int(math.ceil(self.rendering_area_w / max_drawing_width))
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# following test should not be needed. No time to prove it. ;-)
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@ -133,19 +158,22 @@ class MultiPageStreetIndexRenderer:
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actual_n_cols = 0
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offset_y = margin/2.
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# page number of first page
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self._draw_page_number()
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for category in self.index_categories:
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if ( offset_y + header_fheight + label_fheight
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+ margin/2. > self.rendering_area_h ):
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+ margin/2. > max_drawing_height ):
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offset_y = margin/2.
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offset_x += delta_x
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actual_n_cols += 1
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if actual_n_cols == columns_count:
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self._new_page()
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actual_n_cols = 0
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offset_y = margin / 2.
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offset_x = orig_offset_x
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delta_x = orig_delta_x
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self.surface.show_page()
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category.draw(self._i18n.isrtl(), self.ctx, pc, header_layout,
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UTILS.convert_pt_to_dots(header_fascent, dpi),
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@ -161,17 +189,17 @@ class MultiPageStreetIndexRenderer:
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for street in category.items:
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label_height = street.label_drawing_height(label_layout)
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if ( offset_y + label_height + margin/2.
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> self.rendering_area_h ):
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> max_drawing_height ):
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offset_y = margin/2.
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offset_x += delta_x
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actual_n_cols += 1
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if actual_n_cols == columns_count:
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self._new_page()
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actual_n_cols = 0
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offset_y = margin / 2.
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offset_x = orig_offset_x
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delta_x = orig_delta_x
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self.surface.show_page()
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street.draw(self._i18n.isrtl(), self.ctx, pc, column_layout,
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UTILS.convert_pt_to_dots(label_fascent, dpi),
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@ -190,7 +218,7 @@ class MultiPageStreetIndexRenderer:
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self.ctx.restore()
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pass
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if __name__ == '__main__':
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import random
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@ -241,12 +269,13 @@ if __name__ == '__main__':
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(15, 15, width - 2 * 15, height - 2 * 15)
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mpsir = MultiPageStreetIndexRenderer(i18nMock(False), ctxtmp, surface,
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streets, rendering_area)
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streets, rendering_area, 1)
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mpsir.render()
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surface.show_page()
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mpsir = MultiPageStreetIndexRenderer(i18nMock(True), ctxtmp, surface,
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streets, rendering_area)
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mpsir.render()
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mpsir2 = MultiPageStreetIndexRenderer(i18nMock(True), ctxtmp, surface,
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streets, rendering_area,
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mpsir.page_number + 1)
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mpsir2.render()
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surface.finish()
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@ -51,6 +51,7 @@ import shapely.wkt
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from ocitysmap2 import maplib
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from indexlib.commons import IndexCategory
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import draw_utils
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LOG = logging.getLogger('ocitysmap')
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PAGE_STR = " - Page %(page_number)d"
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@ -624,6 +625,8 @@ class MultiPageRenderer(Renderer):
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self._render_overview_page(ctx, cairo_surface, dpi)
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page_number = 0
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for i, (canvas, grid) in enumerate(self.pages):
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rendered_map = canvas.get_rendered_map()
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@ -645,6 +648,7 @@ class MultiPageRenderer(Renderer):
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# Render the page number
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self._render_page_number(ctx, i+4)
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#self._render_neighbour_arrows()
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page_number = i+4
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cairo_surface.show_page()
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ctx.restore()
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@ -655,7 +659,8 @@ class MultiPageRenderer(Renderer):
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(Renderer.PRINT_SAFE_MARGIN_PT,
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Renderer.PRINT_SAFE_MARGIN_PT,
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self._usable_area_width_pt,
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self._usable_area_height_pt))
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self._usable_area_height_pt),
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page_number + 1)
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mpsir.render()
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