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- #ifndef K3DSDK_BITMAP_MODIFIER_H
- #define K3DSDK_BITMAP_MODIFIER_H
-
- // K-3D
- // Copyright (c) 1995-2006, Timothy M. Shead
- //
- // Contact: tshead@k-3d.com
- //
- // This program is free software; you can redistribute it and/or
- // modify it under the terms of the GNU General Public
- // License as published by the Free Software Foundation; either
- // version 2 of the License, or (at your option) any later version.
- //
- // This program is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- // General Public License for more details.
- //
- // You should have received a copy of the GNU General Public
- // License along with this program; if not, write to the Free Software
- // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- #include "bitmap.h"
- #include "data.h"
- #include "hints.h"
- #include "ibitmap_sink.h"
- #include "ibitmap_source.h"
- #include "ipipeline_profiler.h"
- #include "k3d-i18n-config.h"
- #include "pointer_demand_storage.h"
-
- namespace k3d
- {
-
- template<typename derived_t>
- class bitmap_modifier :
- public ibitmap_source,
- public ibitmap_sink
- {
- public:
- iproperty& bitmap_source_output()
- {
- return m_output_bitmap;
- }
-
- iproperty& bitmap_sink_input()
- {
- return m_input_bitmap;
- }
-
- sigc::slot<void, ihint*> make_update_bitmap_slot()
- {
- return m_output_bitmap.make_slot();
- }
-
- protected:
- bitmap_modifier() :
- m_input_bitmap(
- init_owner(owner())
- + init_name("input_bitmap")
- + init_label(_("Input Bitmap"))
- + init_description(_("Input bitmap"))
- + init_value<bitmap*>(0)),
- m_output_bitmap(
- init_owner(owner())
- + init_name("output_bitmap")
- + init_label(_("Output Bitmap"))
- + init_description(_("Output bitmap")))
- {
- m_output_bitmap.set_update_slot(sigc::mem_fun(*this, &bitmap_modifier<derived_t>::execute));
-
- m_input_bitmap.changed_signal().connect(hint::converter<
- hint::convert<hint::bitmap_dimensions_changed, hint::unchanged,
- hint::convert<hint::bitmap_pixels_changed, hint::unchanged,
- hint::convert<hint::any, hint::none> > > >(m_output_bitmap.make_slot()));
- }
-
- k3d_data(bitmap*, immutable_name, change_signal, no_undo, local_storage, no_constraint, read_only_property, no_serialization) m_input_bitmap;
- k3d_data(bitmap*, immutable_name, change_signal, no_undo, pointer_demand_storage, no_constraint, read_only_property, no_serialization) m_output_bitmap;
-
- private:
- inline derived_t& owner()
- {
- return *static_cast<derived_t*>(this);
- }
-
- void execute(const std::vector<ihint*>& Hints, bitmap& Bitmap)
- {
- if(const bitmap* const input = m_input_bitmap.pipeline_value())
- {
- bool resize_bitmap = false;
- bool assign_pixels = false;
-
- for(int i = 0; i != Hints.size(); ++i)
- {
- // Input pixels changed, so all we have to do is reassign ours ...
- if(dynamic_cast<hint::bitmap_pixels_changed*>(Hints[i]))
- {
- assign_pixels = true;
- }
- // In every other case (bitmap_dimensions_changed, unknown hint, or no hint),
- // we must assume the worst and recreate everything from scratch ...
- else
- {
- resize_bitmap = true;
- assign_pixels = true;
- break;
- }
- }
-
- if(resize_bitmap)
- {
- owner().document().pipeline_profiler().start_execution(owner(), "Resize Bitmap");
- on_resize_bitmap(*input, Bitmap);
- owner().document().pipeline_profiler().finish_execution(owner(), "Resize Bitmap");
- }
-
- if(assign_pixels)
- {
- owner().document().pipeline_profiler().start_execution(owner(), "Assign Pixels");
- on_assign_pixels(*input, Bitmap);
- owner().document().pipeline_profiler().finish_execution(owner(), "Assign Pixels");
- }
- }
- }
-
- virtual void on_resize_bitmap(const bitmap& Input, bitmap& Output) = 0;
- virtual void on_assign_pixels(const bitmap& Input, bitmap& Output) = 0;
- };
-
- } // namespace k3d
-
- #endif // !K3DSDK_BITMAP_MODIFIER_H
-
-