kopia lustrzana https://gitlab.com/sane-project/frontends
88 wiersze
2.5 KiB
C
88 wiersze
2.5 KiB
C
/* sane - Scanner Access Now Easy.
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Copyright (C) 1997 David Mosberger-Tang
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This file is part of the SANE package.
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SANE is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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SANE is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with sane; see the file COPYING. If not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#ifndef preview_h
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#define preview_h
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#include <sys/types.h>
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#include "../include/sane/config.h"
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#include <sane/sane.h>
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typedef struct
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{
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GSGDialog *dialog; /* the dialog for this preview */
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SANE_Value_Type surface_type;
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SANE_Unit surface_unit;
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float surface[4]; /* the corners of the scan surface (device coords) */
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float aspect; /* the aspect ratio of the scan surface */
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int saved_dpi_valid;
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SANE_Word saved_dpi;
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int saved_coord_valid[4];
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SANE_Word saved_coord[4];
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/* desired/user-selected preview-window size: */
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int preview_width;
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int preview_height;
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u_char *preview_row;
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int scanning;
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time_t image_last_time_updated;
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gint input_tag;
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SANE_Parameters params;
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int image_offset;
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int image_x;
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int image_y;
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int image_width;
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int image_height;
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u_char *image_data; /* 3 * image_width * image_height bytes */
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GdkGC *gc;
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int selection_drag;
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struct
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{
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int active;
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int coord[4];
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}
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selection, previous_selection;
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GtkWidget *top; /* top-level widget */
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GtkWidget *hruler;
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GtkWidget *vruler;
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GtkWidget *viewport;
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GtkWidget *window; /* the preview window */
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GtkWidget *cancel; /* the cancel button */
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GtkWidget *preview; /* the preview button */
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}
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Preview;
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/* Create a new preview based on the info in DIALOG. */
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extern Preview *preview_new (GSGDialog *dialog);
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/* Some of the parameters may have changed---update the preview. */
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extern void preview_update (Preview *p);
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/* Acquire a preview image and display it. */
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extern void preview_scan (Preview *p);
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/* Destroy a preview. */
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extern void preview_destroy (Preview *p);
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#endif /* preview_h */
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