1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <sal/types.h>
#define LOK_USE_UNSTABLE_API
#include <LibreOfficeKit/LibreOfficeKit.h>
#include <LibreOfficeKit/LibreOfficeKitGtk.h>
static void lok_docview_class_init( LOKDocViewClass* pClass );
static void lok_docview_init( LOKDocView* pDocView );
// We specifically need to destroy the document when closing in order to ensure
// that lock files etc. are cleaned up.
void lcl_onDestroy( LOKDocView* pDocView, gpointer pData )
{
(void) pData;
if ( pDocView->pDocument )
pDocView->pDocument->pClass->destroy( pDocView->pDocument );
pDocView->pDocument = NULL;
}
SAL_DLLPUBLIC_EXPORT guint lok_docview_get_type()
{
static guint lok_docview_type = 0;
if (!lok_docview_type)
{
GtkTypeInfo lok_docview_info =
{
"LokDocView",
sizeof( LOKDocView ),
sizeof( LOKDocViewClass ),
(GtkClassInitFunc) lok_docview_class_init,
(GtkObjectInitFunc) lok_docview_init,
NULL,
NULL,
(GtkClassInitFunc) NULL
};
lok_docview_type = gtk_type_unique( gtk_scrolled_window_get_type(), &lok_docview_info );
}
return lok_docview_type;
}
static void lok_docview_class_init( LOKDocViewClass* pClass )
{
pClass->lok_docview = NULL;
}
static void lok_docview_init( LOKDocView* pDocView )
{
// Gtk ScrolledWindow is apparently not fully initialised yet, we specifically
// have to set the [hv]adjustment to prevent GTK assertions from firing, see
// https://bugzilla.gnome.org/show_bug.cgi?id=438114 for more info.
gtk_scrolled_window_set_hadjustment( GTK_SCROLLED_WINDOW( pDocView ), NULL );
gtk_scrolled_window_set_vadjustment( GTK_SCROLLED_WINDOW( pDocView ), NULL );
pDocView->pEventBox = gtk_event_box_new();
gtk_scrolled_window_add_with_viewport( GTK_SCROLLED_WINDOW(pDocView),
pDocView->pEventBox );
pDocView->pCanvas = gtk_image_new();
gtk_container_add( GTK_CONTAINER( pDocView->pEventBox ), pDocView->pCanvas );
gtk_widget_show( pDocView->pCanvas );
gtk_widget_show( pDocView->pEventBox );
pDocView->pPixBuf = 0;
// TODO: figure out a clever view of getting paths set up.
pDocView->pOffice = 0;
pDocView->pDocument = 0;
pDocView->fZoom = 1;
gtk_signal_connect( GTK_OBJECT(pDocView), "destroy",
GTK_SIGNAL_FUNC(lcl_onDestroy), NULL );
}
SAL_DLLPUBLIC_EXPORT GtkWidget* lok_docview_new( LibreOfficeKit* pOffice )
{
LOKDocView* pDocView = gtk_type_new( lok_docview_get_type() );
pDocView->pOffice = pOffice;
return GTK_WIDGET( pDocView );
}
void renderDocument( LOKDocView* pDocView )
{
long nWidth, nHeight;
int nRenderWidth, nRenderHeight;
unsigned char* pBuffer;
int nRowStride;
g_assert( pDocView->pDocument );
if ( pDocView->pPixBuf )
{
g_object_unref( G_OBJECT( pDocView->pPixBuf ) );
}
pDocView->pDocument->pClass->getDocumentSize( pDocView->pDocument, &nWidth, &nHeight );
// Draw the whole document at once (for now)
// TODO: we really should scale by screen DPI here -- 10 seems to be a vaguely
// correct factor for my screen at least.
nRenderWidth = nWidth * pDocView->fZoom / 10;
nRenderHeight = nHeight * pDocView->fZoom / 10;
pDocView->pPixBuf = gdk_pixbuf_new( GDK_COLORSPACE_RGB,
TRUE, 8,
nRenderWidth, nRenderHeight);
pBuffer = gdk_pixbuf_get_pixels( pDocView->pPixBuf );
pDocView->pDocument->pClass->paintTile( pDocView->pDocument,
pBuffer,
nRenderWidth, nRenderHeight,
&nRowStride,
0, 0, // origin
nWidth, nHeight );
// TODO: double check that the rowstride really matches what we expected,
// although presumably we'd already be crashing by now if things were
// wrong.
(void) nRowStride;
gtk_image_set_from_pixbuf( GTK_IMAGE( pDocView->pCanvas ), pDocView->pPixBuf );
}
SAL_DLLPUBLIC_EXPORT gboolean lok_docview_open_document( LOKDocView* pDocView, char* pPath )
{
if ( pDocView->pDocument )
{
pDocView->pDocument->pClass->destroy( pDocView->pDocument );
pDocView->pDocument = NULL;
}
pDocView->pDocument = pDocView->pOffice->pClass->documentLoad( pDocView->pOffice,
pPath );
if ( !pDocView->pDocument )
{
// FIXME: should have a GError parameter and populate it.
char *pError = pDocView->pOffice->pClass->getError( pDocView->pOffice );
fprintf( stderr, "Error opening document '%s'\n", pError );
return FALSE;
}
else
renderDocument( pDocView );
return TRUE;
}
SAL_DLLPUBLIC_EXPORT void lok_docview_set_zoom ( LOKDocView* pDocView, float fZoom )
{
pDocView->fZoom = fZoom;
if ( pDocView->pDocument )
{
renderDocument( pDocView );
}
// TODO: maybe remember and reset positiong?
}
SAL_DLLPUBLIC_EXPORT float lok_docview_get_zoom ( LOKDocView* pDocView )
{
return pDocView->fZoom;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|