shapedraw.h

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#ifndef INCL_SHAPEDRAW
#define INCL_SHAPEDRAW  1

/*
Copyright (C) 2001  The Exult Team

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 <gtk/gtk.h>
#include <gdk/gdktypes.h>

class Vga_file;
class Shape_frame;
class Image_buffer8;

typedef void (*Drop_callback)(int filenum,
        int shapenum, int framenum, void *udata);

/*
 *  This class can draw shapes from a .vga file.
 */
class Shape_draw
  {
protected:
  Vga_file *ifile;    // Where the shapes come from.
  GtkWidget *draw;    // GTK draw area to display them in.
  GdkGC *drawgc;      // For drawing in 'draw'.
  Image_buffer8 *iwin;    // What we render into.
  GdkRgbCmap *palette;    // For gdk_draw_indexed_image().
  Drop_callback drop_callback;  // Called when a shape is dropped here.
  void *drop_user_data;
  bool dragging;      // Dragging from here.
public:
  Shape_draw(Vga_file *i, unsigned char *palbuf, GtkWidget *drw);
  virtual ~Shape_draw();
          // Blit onto screen.
  void show(GdkDrawable *drawable, int x, int y, int w, int h);
  void show(int x, int y, int w, int h)
    { show(draw->window, x, y, w, h); }
  void show()
    { show(0, 0, draw->allocation.width, draw->allocation.height);}
  guint32 get_color(int i)
    { return palette->colors[i]; }
  void draw_shape(Shape_frame *shape, int x, int y);
  void draw_shape(int shapenum, int framenum, int x, int y);
  void draw_shape_outline(int shapenum, int framenum, 
          int x, int y, unsigned char color);
  void draw_shape_centered(int shapenum, int framenum);
  virtual void render();    // Update what gets shown.
  void set_background_color(guint32 c);
      
  void configure();   // Configure when created/resized.
          // Handler for drop.
  static void drag_data_received(GtkWidget *widget, 
    GdkDragContext *context, gint x, gint y, 
    GtkSelectionData *selection_data, guint info, guint time,
    gpointer udata);
  void enable_drop(Drop_callback callback, void *udata);
  void set_drag_icon(GdkDragContext *context, Shape_frame *shape);
          // Start/end dragging from here.
  void start_drag(char *target, int id, GdkEvent *event);
  void mouse_up()
    { dragging = false; }
  };

#endif

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