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/*    viewer.h
      Copyright (C) 2004-2008 Mark Tyler and Dmitry Groshev

      This file is part of mtPaint.

      mtPaint 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 3 of the License, or
      (at your option) any later version.

      mtPaint is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      GNU General Public License for more details.

      You should have received a copy of the GNU General Public License
      along with mtPaint in the file COPYING.

float vw_zoom;
int view_showing, vw_focus_on;
int opaque_view;
int max_pan;

GtkWidget *vw_drawing;

void create_cline_area( GtkWidget *vbox1 );

void pressed_pan();

void pressed_centralize(int state);
void pressed_view_focus(int state);
void init_view();             // Initial setup
void view_show();
void view_hide();

int make_text_clipboard(unsigned char *img, int w, int h, int src_bpp);
void pressed_help();
void pressed_text();
void render_text( GtkWidget *widget );

void vw_align_size( float new_zoom );                       // Set new zoom
void vw_realign();                                    // Reapply old zoom
void vw_repaint( int px, int py, int pw, int ph );
void vw_update_area( int x, int y, int w, int h );          // Update x,y,w,h area of current image
void vw_focus_view();                                 // Focus view window to main window
void vw_focus_idle();                                 // Same but done in idle cycles
void view_render_rgb( unsigned char *rgb, int px, int py, int pw, int ph, double czoom );
void render_layers(unsigned char *rgb, int step, int px, int py, int pw, int ph,
      double czoom, int lr0, int lr1, int align);

gboolean vw_configure( GtkWidget *widget, GdkEventConfigure *event );

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