1 // Copyright (C) 2009-2012, 2014, 2015, 2017, 2020 Ben Asselstine
2 //
3 //  This program is free software; you can redistribute it and/or modify
4 //  it under the terms of the GNU General Public License as published by
5 //  the Free Software Foundation; either version 3 of the License, or
6 //  (at your option) any later version.
7 //
8 //  This program is distributed in the hope that it will be useful,
9 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
10 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11 //  GNU Library General Public License for more details.
12 //
13 //  You should have received a copy of the GNU General Public License
14 //  along with this program; if not, write to the Free Software
15 //  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
16 //  02110-1301, USA.
17 
18 #pragma once
19 #ifndef PIXMASK_H
20 #define PIXMASK_H
21 
22 #include <gtkmm.h>
23 #include "vector.h"
24 #include "rectangle.h"
25 #include <cairomm/cairomm.h>
26 
27 
28 //! A pixmap and bitmask pair.
29 /**
30  */
31 class PixMask
32 {
33  public:
get_pixmap()34      Cairo::RefPtr<Cairo::Surface> get_pixmap() {return pixmap;};
get_mask()35      Cairo::RefPtr<Cairo::Surface> get_mask() {return mask;};
get_gc()36      Cairo::RefPtr<Cairo::Context> get_gc() {return gc;};
get_width()37      int get_width() {return width;};
get_height()38      int get_height() {return height;};
get_unscaled_width()39      int get_unscaled_width() {return unscaled_width;};
get_unscaled_height()40      int get_unscaled_height() {return unscaled_height;};
41      int get_depth();
42 
43      static PixMask* create(Glib::ustring file, bool &broken);
44      static PixMask* create(Glib::RefPtr<Gdk::Pixbuf> buf);
45      static PixMask* create(Cairo::RefPtr<Cairo::Surface> pixmap,
46 					 Cairo::RefPtr<Cairo::Surface> mask);
47      PixMask* copy();
48 
49      //! convert this pixmask to a pixbuf.
50      Glib::RefPtr<Gdk::Pixbuf> to_pixbuf();
51 
52      //! draw a pixbuf onto this pixmask.
53      void draw_pixbuf(Glib::RefPtr<Gdk::Pixbuf> pixbuf, int src_x, int src_y, int dest_x, int dest_y, int width, int height);
54 
55      //! scale a pixmask in place (alters pixmask)
56      static void scale(PixMask*& pixmask, int xsize, int ysize, Gdk::InterpType intper = Gdk::INTERP_BILINEAR);
57 
58      //! draw this pixmask onto a pixmap.
59      void blit(Cairo::RefPtr<Cairo::Surface> pixmap, int dest_x, int dest_y);
60      void blit(Cairo::RefPtr<Cairo::Surface> pixmap, Vector<int> pos = Vector<int>(0,0));
61      void blit_centered(Cairo::RefPtr<Cairo::Surface> pixmap, Vector<int> pos);
62       //blit a tile's worth of imagery from this pixmask to a pixmap.
63      void blit(Vector<int> tile, int ts, Cairo::RefPtr<Cairo::Surface> pixmap, Vector<int> dest = Vector<int>(0,0));
64 
65      Vector<int> get_dim() const;
66      Vector<int> get_unscaled_dim() const;
67      //! Destructor.
68     ~PixMask();
69  protected:
70      //! Default constructor.
71      PixMask(Glib::RefPtr<Gdk::Pixbuf> pixbuf);
72 
73      //! Alternative constructor.
74      PixMask(Cairo::RefPtr<Cairo::Surface> pixmap, Cairo::RefPtr<Cairo::Surface> mask);
75 
76      //! Copy constructor.
77      PixMask(const PixMask&);
78 
79      //! Loading constructor.
80      /**
81       * Load the pixmask from a file.
82       *
83       */
84      PixMask(Glib::ustring filename, bool &broken);
85 
set_unscaled_width(guint32 w)86      void set_unscaled_width(guint32 w) {unscaled_width = w;};
set_unscaled_height(guint32 h)87      void set_unscaled_height(guint32 h) {unscaled_height = h;};
88 
89  private:
90      Cairo::RefPtr<Cairo::Surface> pixmap;
91      Cairo::RefPtr<Cairo::Surface> mask;
92      Cairo::RefPtr<Cairo::Context> gc;
93     int width;
94     int height;
95     int unscaled_width;
96     int unscaled_height;
97 
98      //! return a stretched copy of this pixmask.
99      PixMask* scale(int xsize, int ysize,
100 		    Gdk::InterpType interp = Gdk::INTERP_NEAREST);
101 
102      void blit(LwRectangle src, Cairo::RefPtr<Cairo::Surface> pixmap, Vector<int> dest);
103 };
104 
105 #endif
106