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
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
/* See LICENSE file for license and copyright information */
#include "print.h"
#include "document.h"
#include "render.h"
#include "page.h"
#include <girara/utils.h>
#include <girara/statusbar.h>
#include <girara/session.h>
#include <glib/gi18n.h>
static void cb_print_draw_page(GtkPrintOperation* print_operation,
GtkPrintContext* context, gint page_number,
zathura_t* zathura);
static void cb_print_end(GtkPrintOperation* print_operation, GtkPrintContext*
context, zathura_t* zathura);
static void cb_print_request_page_setup(GtkPrintOperation* print_operation,
GtkPrintContext* context,
gint page_number, GtkPageSetup* setup,
zathura_t* zathura);
static void cb_print_done(GtkPrintOperation* operation,
GtkPrintOperationResult result, zathura_t* zathura);
void
print(zathura_t* zathura)
{
g_return_if_fail(zathura != NULL);
g_return_if_fail(zathura->document != NULL);
GtkPrintOperation* print_operation = gtk_print_operation_new();
/* print operation settings */
gtk_print_operation_set_job_name(print_operation, zathura_document_get_path(zathura->document));
gtk_print_operation_set_allow_async(print_operation, TRUE);
gtk_print_operation_set_n_pages(print_operation, zathura_document_get_number_of_pages(zathura->document));
gtk_print_operation_set_current_page(print_operation, zathura_document_get_current_page_number(zathura->document));
gtk_print_operation_set_use_full_page(print_operation, TRUE);
if (zathura->print.settings != NULL) {
gtk_print_operation_set_print_settings(print_operation,
zathura->print.settings);
}
if (zathura->print.page_setup != NULL) {
gtk_print_operation_set_default_page_setup(print_operation,
zathura->print.page_setup);
}
gtk_print_operation_set_embed_page_setup(print_operation, TRUE);
/* print operation signals */
g_signal_connect(print_operation, "draw-page", G_CALLBACK(cb_print_draw_page), zathura);
g_signal_connect(print_operation, "end-print", G_CALLBACK(cb_print_end), zathura);
g_signal_connect(print_operation, "request-page-setup", G_CALLBACK(cb_print_request_page_setup), zathura);
g_signal_connect(print_operation, "done", G_CALLBACK(cb_print_done), zathura);
/* print */
GError* error = NULL;
GtkPrintOperationResult result = gtk_print_operation_run(print_operation,
GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
NULL, &error);
if (result == GTK_PRINT_OPERATION_RESULT_ERROR) {
girara_notify(zathura->ui.session, GIRARA_ERROR, _("Printing failed: %s"),
error->message);
g_error_free(error);
}
g_object_unref(print_operation);
}
static void
cb_print_end(GtkPrintOperation* UNUSED(print_operation), GtkPrintContext*
UNUSED(context), zathura_t* zathura)
{
if (zathura == NULL || zathura->ui.session == NULL ||
zathura->document == NULL) {
return;
}
const char* file_path = zathura_document_get_path(zathura->document);
if (file_path != NULL) {
girara_statusbar_item_set_text(zathura->ui.session,
zathura->ui.statusbar.file, file_path);
}
}
static void
cb_print_draw_page(GtkPrintOperation* print_operation, GtkPrintContext*
context, gint page_number, zathura_t* zathura)
{
if (context == NULL || zathura == NULL || zathura->document == NULL ||
zathura->ui.session == NULL || zathura->ui.statusbar.file == NULL) {
gtk_print_operation_cancel(print_operation);
return;
}
/* Update statusbar. */
char* tmp = g_strdup_printf("Printing %d...", page_number);
girara_statusbar_item_set_text(zathura->ui.session,
zathura->ui.statusbar.file, tmp);
g_free(tmp);
/* Get the page and cairo handle. */
cairo_t* cairo = gtk_print_context_get_cairo_context(context);
zathura_page_t* page = zathura_document_get_page(zathura->document, page_number);
if (cairo == NULL || page == NULL) {
gtk_print_operation_cancel(print_operation);
return;
}
/* Try to render the page without a temporary surface. This only works with
* plugins that support rendering to any surface. */
girara_debug("printing page %d ...", page_number);
zathura_renderer_lock(zathura->sync.render_thread);
int err = zathura_page_render(page, cairo, true);
zathura_renderer_unlock(zathura->sync.render_thread);
if (err == ZATHURA_ERROR_OK) {
return;
}
/* Try to render the page on a temporary image surface. */
const gdouble width = gtk_print_context_get_width(context);
const gdouble height = gtk_print_context_get_height(context);
/* Render to a surface that is 5 times larger to workaround quality issues. */
const double page_height = zathura_page_get_height(page) * 5;
const double page_width = zathura_page_get_width(page) * 5;
cairo_surface_t* surface = cairo_image_surface_create(CAIRO_FORMAT_RGB24, page_width, page_height);
if (surface == NULL) {
gtk_print_operation_cancel(print_operation);
return;
}
cairo_t* temp_cairo = cairo_create(surface);
if (cairo == NULL) {
gtk_print_operation_cancel(print_operation);
cairo_surface_destroy(surface);
return;
}
/* Draw a white background. */
cairo_save(temp_cairo);
cairo_set_source_rgb(temp_cairo, 1, 1, 1);
cairo_rectangle(temp_cairo, 0, 0, page_width, page_height);
cairo_fill(temp_cairo);
cairo_restore(temp_cairo);
/* Render the page to the temporary surface */
girara_debug("printing page %d (fallback) ...", page_number);
zathura_renderer_lock(zathura->sync.render_thread);
err = zathura_page_render(page, temp_cairo, true);
zathura_renderer_unlock(zathura->sync.render_thread);
if (err != ZATHURA_ERROR_OK) {
cairo_destroy(temp_cairo);
cairo_surface_destroy(surface);
gtk_print_operation_cancel(print_operation);
return;
}
/* Rescale the page and keep the aspect ratio */
const gdouble scale = MIN(width / page_width, height / page_height);
cairo_scale(cairo, scale, scale);
/* Blit temporary surface to original cairo object. */
cairo_set_source_surface(cairo, surface, 0.0, 0.0);
cairo_paint(cairo);
cairo_destroy(temp_cairo);
cairo_surface_destroy(surface);
}
static void
cb_print_request_page_setup(GtkPrintOperation* UNUSED(print_operation),
GtkPrintContext* UNUSED(context), gint page_number,
GtkPageSetup* setup, zathura_t* zathura)
{
if (zathura == NULL || zathura->document == NULL) {
return;
}
zathura_page_t* page = zathura_document_get_page(zathura->document, page_number);
double width = zathura_page_get_width(page);
double height = zathura_page_get_height(page);
if (width > height) {
gtk_page_setup_set_orientation(setup, GTK_PAGE_ORIENTATION_LANDSCAPE);
} else {
gtk_page_setup_set_orientation(setup, GTK_PAGE_ORIENTATION_PORTRAIT);
}
}
static void
cb_print_done(GtkPrintOperation* operation, GtkPrintOperationResult result,
zathura_t* zathura)
{
if (result == GTK_PRINT_OPERATION_RESULT_APPLY) {
if (zathura->print.settings != NULL) {
g_object_unref(zathura->print.settings);
}
if (zathura->print.page_setup != NULL) {
g_object_unref(zathura->print.page_setup);
}
/* save previous settings */
zathura->print.settings = g_object_ref(gtk_print_operation_get_print_settings(operation));
zathura->print.page_setup = g_object_ref(gtk_print_operation_get_default_page_setup(operation));
} else if (result == GTK_PRINT_OPERATION_RESULT_ERROR) {
GError* error = NULL;
gtk_print_operation_get_error(operation, &error);
girara_notify(zathura->ui.session, GIRARA_ERROR, _("Printing failed: %s"),
error->message);
g_error_free(error);
}
}
|
