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Diffstat (limited to 'frontend/pisa_preview_window.h')
| -rw-r--r-- | frontend/pisa_preview_window.h | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/frontend/pisa_preview_window.h b/frontend/pisa_preview_window.h new file mode 100644 index 0000000..a8aaba7 --- /dev/null +++ b/frontend/pisa_preview_window.h @@ -0,0 +1,171 @@ +/* + SANE EPSON backend + Copyright (C) 2001, 2005, 2008 SEIKO EPSON CORPORATION + + Date Author Reason + 06/01/2001 N.Sasaki New + + This file is part of the `iscan' program. + + 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., 675 Mass Ave, Cambridge, MA 02139, USA. + + As a special exception, the copyright holders give permission + to link the code of this program with the esmod library and + distribute linked combinations including the two. You must obey + the GNU General Public License in all respects for all of the + code used other then esmod. +*/ + +#ifndef ___PISA_PREVIEW_WINDOW_H +#define ___PISA_PREVIEW_WINDOW_H + +#include <gtk/gtk.h> +#include "pisa_enums.h" +#include "pisa_structs.h" + +class preview_window +{ + public: + + preview_window ( ) { m_gc = NULL; } + + // operation + int init ( void ); + GtkWidget * create_window ( GtkWidget * parent ); + int close_window ( int destroy ); + + int is_prev_img ( void ) { return m_is_prev; } + + int resize_window ( void ); + + int auto_exposure ( void ); + + int update_img ( bool left = false ); + + void start_preview (void); + void start_zoom (void); + + gint expose_event ( GtkWidget * widget, GdkEventExpose * event ); + gint event ( GtkWidget * widget, GdkEvent * event ); + + void size_allocate ( GtkWidget * widget ); + + private: + + // operation + GtkWidget * create_darea ( GtkWidget * parent ); + + long get_preview_resolution ( const _rectD * img_rect = 0 ); + void resize_preview_window ( long width, long height ); + void change_max_scan_area ( long width, long height ); + void change_max_disp_area ( long width, long height ); + void clear_image ( void ); + + void modify_max_val ( void ); + + void draw_marquee ( void ); + + // preview, zoom + void start_preview (bool zooming); + void reset_settings (bool zooming); + int set_preview_param (bool zooming); + void revert_resolution ( void ); + + void tool_usm (const pisa_image_info& info); + void zoom_boundary (_pointD& pt_offset, _pointD& pt_area, + const _pointD& pt_max, float rate) const; + + // cursor + void create_cursor ( void ); + int set_mouse_cursor ( int x, int y ); + int search_cursor_state ( const _pointL & pt_lt, + const _pointL & pt_rb, + const _pointL & pt ); + void change_cursor ( void ); + + // marquee + gint mouse_down ( GdkEvent * event ); + gint mouse_move ( GdkEvent * event ); + gint mouse_up ( GdkEvent * event ); + + int create_marquee ( const _pointL & pt_lt, const _pointL & pt_rb ); + int delete_marquee ( void ); + + void move_marquee ( const _pointL & pt_lt, const _pointL & pt_rb ); + void resize_marquee ( const _pointL & pt_lt, const _pointL & pt_rb ); + + void begin_mouse_move ( _pointL * pt_lt, _pointL * pt_rb ); + void move_rect ( _pointL * pt_lt, _pointL * pt_rb, const _pointL & pt_move ); + + _pointD clientpix2inches ( _pointL & pt ); + _pointL inches2clientpix ( _pointD & pt ); + int get_marquee_point ( long i, _pointL * pt_lt, _pointL * pt_rb ); + + int check_min_size ( const _pointL & pt_lt, const _pointL & pt_rb ); + void check_max_size ( _pointD * pt_offset, _pointD * pt_area, + int offset ); + void check_ltrb ( _pointL * pt_lt, _pointL * pt_rb ); + + void draw_rect ( const _pointL & pt_lt, const _pointL & pt_rb ); + + // attribute + GtkWidget * m_win; + GtkWidget * m_prev; + + long m_is_prev; + long m_img_width, m_img_height; + unsigned char * m_img; + unsigned char * m_img_org; + + GdkGC * m_gc; + + int m_cursor_state; + GdkCursor * m_cursor [ 11 ]; + + bool m_on_preview; + long m_allocate_width; + long m_allocate_height; + + // for marquee + int m_drag; + _rectL m_client_rect; + _rectD m_max_img_rect; + _rectD m_img_rect; + + _pointL m_pt_max_lt; + _pointL m_pt_max_rb; + + _pointL m_pt_begin; + _pointL m_pt_old; + _pointL m_pt_old_lt; + _pointL m_pt_old_rb; + _pointD m_pt_save_offset; + _pointD m_pt_save_area; + +}; + +inline void +preview_window::start_preview (void) +{ + start_preview (false); +} + +inline void +preview_window::start_zoom (void) +{ + start_preview (true); +} + +#endif // ___PISA_PREVIEW_WINDOW_H |