src/print.c

   1 /*
   2  * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
   3  *
   4  * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
   5  *
   6  * print.c
   7  * Copyright (C) 2007, Quy Tonthat <qtonthat@gmail.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22  *
  23  */
  24 #ifdef HAVE_CONFIG_H
  25 #include "config.h"
  26 #endif
  27
  28 #include <string.h>
  29 #include <glib/gprintf.h>
  30 #include <glib/gi18n.h>
  31 #include <gtk/gtk.h>
  32
  33 #if GTK_CHECK_VERSION(2,10,0)
  34
  35 #include "viking.h"
  36 #include "print.h"
  37 #include "print-preview.h"
  38
  39 typedef enum
  40 {
  41   VIK_PRINT_CENTER_NONE         = 0,
  42   VIK_PRINT_CENTER_HORIZONTALLY,
  43   VIK_PRINT_CENTER_VERTICALLY,
  44   VIK_PRINT_CENTER_BOTH,
  45 } PrintCenterMode;
  46
  47 typedef struct {
  48   gchar *name;
  49   PrintCenterMode mode;
  50 } PrintCenterName;
  51
  52 static const PrintCenterName center_modes[] = {
  53   {N_("None"),          VIK_PRINT_CENTER_NONE},
  54   {N_("Horizontally"),  VIK_PRINT_CENTER_HORIZONTALLY},
  55   {N_("Vertically"),    VIK_PRINT_CENTER_VERTICALLY},
  56   {N_("Both"),          VIK_PRINT_CENTER_BOTH},
  57   {NULL,            -1}
  58 };
  59
  60 typedef struct {
  61   gint                num_pages;
  62   gboolean            show_info_header;
  63   VikWindow           *vw;
  64   VikViewport         *vvp;
  65   gdouble             xmpp, ympp;  /* zoom level (meters/pixel) */
  66   gdouble             xres;
  67   gdouble             yres;
  68   gint                width;
  69   gint                height;
  70   gdouble             offset_x;
  71   gdouble             offset_y;
  72   PrintCenterMode     center;
  73   gboolean            use_full_page;
  74   GtkPrintOperation  *operation;
  75 } PrintData;
  76
  77 static GtkWidget *create_custom_widget_cb(GtkPrintOperation *operation, PrintData *data);
  78 static void begin_print(GtkPrintOperation *operation, GtkPrintContext *context, PrintData *data);
  79 static void draw_page(GtkPrintOperation *print, GtkPrintContext *context, gint page_nr, PrintData *data);
  80 static void end_print(GtkPrintOperation *operation, GtkPrintContext *context,  PrintData *data);
  81
  82 void a_print(VikWindow *vw, VikViewport *vvp)
  83 {
  84   /* TODO: make print_settings non-static when saving_settings_to_file is
  85    * implemented. Keep it static for now to retain settings for each
  86    * viking session
  87    */
  88   static GtkPrintSettings *print_settings = NULL;
  89
  90   GtkPrintOperation *print_oper;
  91   GtkPrintOperationResult res;
  92   PrintData data;
  93
  94   print_oper = gtk_print_operation_new ();
  95
  96   data.num_pages     = 1;
  97   data.vw            = vw;
  98   data.vvp           = vvp;
  99   data.offset_x      = 0;
 100   data.offset_y      = 0;
 101   data.center        = VIK_PRINT_CENTER_BOTH;
 102   data.use_full_page = FALSE;
 103   data.operation     = print_oper;
 104
 105   data.xmpp          = vik_viewport_get_xmpp(vvp);
 106   data.ympp          = vik_viewport_get_ympp(vvp);
 107   data.width         = vik_viewport_get_width(vvp);
 108   data.height        = vik_viewport_get_height(vvp);
 109
 110   data.xres = data.yres = 230;   /* FIXME */
 111
 112   if (print_settings != NULL)
 113     gtk_print_operation_set_print_settings (print_oper, print_settings);
 114
 115   g_signal_connect (print_oper, "begin_print", G_CALLBACK (begin_print), &data);
 116   g_signal_connect (print_oper, "draw_page", G_CALLBACK (draw_page), &data);
 117   g_signal_connect (print_oper, "end-print", G_CALLBACK (end_print), &data);
 118   g_signal_connect (print_oper, "create-custom-widget", G_CALLBACK (create_custom_widget_cb), &data);
 119
 120   gtk_print_operation_set_custom_tab_label (print_oper, _("Image Settings"));
 121
 122   res = gtk_print_operation_run (print_oper,
 123                                  GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
 124                                  GTK_WINDOW (vw), NULL);
 125
 126   if (res == GTK_PRINT_OPERATION_RESULT_APPLY) {
 127     if (print_settings != NULL)
 128       g_object_unref (print_settings);
 129     print_settings = g_object_ref (gtk_print_operation_get_print_settings (print_oper));
 130   }
 131
 132   g_object_unref (print_oper);
 133 }
 134
 135 static void begin_print(GtkPrintOperation *operation,
 136                         GtkPrintContext   *context,
 137                         PrintData         *data)
 138 {
 139   // fputs("DEBUG: begin_print() called\n", stderr);
 140   gtk_print_operation_set_n_pages (operation, data->num_pages);
 141   gtk_print_operation_set_use_full_page (operation, data->use_full_page);
 142
 143 }
 144
 145 static void end_print(GtkPrintOperation *operation,
 146                       GtkPrintContext   *context,
 147                       PrintData *data)
 148 {
 149   // fputs("DEBUG: end_print() called\n", stderr);
 150
 151 }
 152
 153 static void copy_row_from_rgb(guchar *surface_pixels, guchar *pixbuf_pixels, gint width)
 154 {
 155   guint32 *cairo_data = (guint32 *) surface_pixels;
 156   guchar  *p;
 157   gint     i;
 158
 159   for (i = 0, p = pixbuf_pixels; i < width; i++) {
 160     guint32 r = *p++;
 161     guint32 g = *p++;
 162     guint32 b = *p++;
 163     cairo_data[i] = 0xFF000000 | (r << 16) | (g << 8) | b;
 164   }
 165 }
 166
 167 #define INT_MULT(a,b,t)  ((t) = (a) * (b) + 0x80, ((((t) >> 8) + (t)) >> 8))
 168 #define INT_BLEND(a,b,alpha,tmp)  (INT_MULT((a) - (b), alpha, tmp) + (b))
 169 static void copy_row_from_rgba(guchar *surface_pixels, guchar *pixbuf_pixels, gint width)
 170 {
 171   guint32 *cairo_data = (guint32 *) surface_pixels;
 172   guchar  *p;
 173   gint     i;
 174
 175   for (i = 0, p = pixbuf_pixels; i < width; i++) {
 176     guint32 r = *p++;
 177     guint32 g = *p++;
 178     guint32 b = *p++;
 179     guint32 a = *p++;
 180
 181     if (a != 255) {
 182       guint32 tmp;
 183       /* composite on a white background */
 184       r = INT_BLEND (r, 255, a, tmp);
 185       g = INT_BLEND (g, 255, a, tmp);
 186       b = INT_BLEND (b, 255, a, tmp);
 187     }
 188     cairo_data[i] = 0xFF000000 | (r << 16) | (g << 8) | b;
 189   }
 190 }
 191
 192 static void draw_page_cairo(GtkPrintContext *context, PrintData *data)
 193 {
 194   cairo_t         *cr;
 195   GdkPixbuf       *pixbuf_to_draw;
 196   cairo_surface_t *surface;
 197   guchar          *surface_pixels;
 198   guchar          *pixbuf_pixels;
 199   gint             stride;
 200   gint             pixbuf_stride;
 201   gint             pixbuf_n_channels;
 202   gdouble          cr_width;
 203   gdouble          cr_height;
 204   gdouble          cr_dpi_x;
 205   gdouble          cr_dpi_y;
 206   gdouble          scale_x;
 207   gdouble          scale_y;
 208   gint             y;
 209
 210   cr = gtk_print_context_get_cairo_context(context);
 211   pixbuf_to_draw = gdk_pixbuf_get_from_drawable(NULL,
 212                                GDK_DRAWABLE(vik_viewport_get_pixmap(data->vvp)),
 213                                NULL, 0, 0, 0, 0, data->width, data->height);
 214   surface = cairo_image_surface_create(CAIRO_FORMAT_RGB24,
 215                                        data->width, data->height);
 216
 217   cr_width  = gtk_print_context_get_width  (context);
 218   cr_height = gtk_print_context_get_height (context);
 219   cr_dpi_x  = gtk_print_context_get_dpi_x  (context);
 220   cr_dpi_y  = gtk_print_context_get_dpi_y  (context);
 221
 222   scale_x = cr_dpi_x / data->xres;
 223   scale_y = cr_dpi_y / data->yres;
 224
 225   cairo_translate (cr,
 226                    data->offset_x / cr_dpi_x * 72.0,
 227                    data->offset_y / cr_dpi_y * 72.0);
 228   cairo_scale (cr, scale_x, scale_y);
 229
 230   surface_pixels = cairo_image_surface_get_data (surface);
 231   stride = cairo_image_surface_get_stride (surface);
 232   pixbuf_pixels = gdk_pixbuf_get_pixels (pixbuf_to_draw);
 233   pixbuf_stride = gdk_pixbuf_get_rowstride(pixbuf_to_draw);
 234   pixbuf_n_channels = gdk_pixbuf_get_n_channels(pixbuf_to_draw);
 235
 236   // fprintf(stderr, "DEBUG: %s() surface_pixels=%p pixbuf_pixels=%p size=%d surface_width=%d surface_height=%d stride=%d data_height=%d pixmap_stride=%d pixmap_nchannels=%d pixmap_bit_per_Sample=%d\n", __PRETTY_FUNCTION__, surface_pixels, pixbuf_pixels, stride * data->height, cairo_image_surface_get_width(surface), cairo_image_surface_get_height(surface), stride, data->height, gdk_pixbuf_get_rowstride(pixbuf_to_draw), gdk_pixbuf_get_n_channels(pixbuf_to_draw), gdk_pixbuf_get_bits_per_sample(pixbuf_to_draw));
 237
 238   /* Assume the pixbuf has 8 bits per channel */
 239   for (y = 0; y < data->height; y++, surface_pixels += stride, pixbuf_pixels += pixbuf_stride) {
 240     switch (pixbuf_n_channels) {
 241       case 3:
 242         copy_row_from_rgb (surface_pixels, pixbuf_pixels, data->width);
 243         break;
 244       case 4:
 245         copy_row_from_rgba (surface_pixels, pixbuf_pixels, data->width);
 246         break;
 247     }
 248   }
 249
 250   g_object_unref(G_OBJECT(pixbuf_to_draw));
 251
 252   cairo_set_source_surface(cr, surface, 0, 0);
 253   cairo_rectangle(cr, 0, 0, data->width, data->height);
 254   cairo_fill(cr);
 255   cairo_surface_destroy(surface);
 256 }
 257
 258 static void draw_page(GtkPrintOperation *print,
 259                       GtkPrintContext   *context,
 260                       gint               page_nr,
 261                       PrintData         *data)
 262 {
 263   // fprintf(stderr, "DEBUG: draw_page() page_nr=%d\n", page_nr);
 264   draw_page_cairo(context, data);
 265
 266 }
 267
 268 /*********************** page layout gui *********************/
 269 typedef struct
 270 {
 271   PrintData       *data;
 272   GtkWidget       *center_combo;
 273   GtkWidget       *scale;
 274   GtkWidget       *scale_label;
 275   GtkWidget       *preview;
 276 } CustomWidgetInfo;
 277
 278 enum
 279 {
 280   BOTTOM,
 281   TOP,
 282   RIGHT,
 283   LEFT,
 284   WIDTH,
 285   HEIGHT
 286 };
 287
 288 static gboolean scale_change_value_cb(GtkRange *range, GtkScrollType scroll, gdouble value, CustomWidgetInfo *pinfo);
 289 static void get_page_dimensions (CustomWidgetInfo *info, gdouble *page_width, gdouble *page_height, GtkUnit unit);
 290 static void center_changed_cb (GtkWidget *combo, CustomWidgetInfo *info);
 291 static void get_max_offsets (CustomWidgetInfo *info, gdouble *offset_x_max, gdouble *offset_y_max);
 292 static void update_offsets (CustomWidgetInfo *info);
 293
 294 static void set_scale_label(CustomWidgetInfo *pinfo, gdouble scale_val)
 295 {
 296   static const gdouble inch_to_mm = 25.4;
 297   gchar label_text[64];
 298
 299   g_snprintf(label_text, sizeof(label_text), "<i>%.0fx%0.f mm (%.0f%%)</i>",
 300       inch_to_mm * pinfo->data->width / pinfo->data->xres,
 301       inch_to_mm * pinfo->data->height / pinfo->data->yres,
 302       scale_val);
 303   gtk_label_set_markup (GTK_LABEL (pinfo->scale_label), label_text);
 304 }
 305
 306 static void set_scale_value(CustomWidgetInfo *pinfo)
 307 {
 308   gdouble width;
 309   gdouble height;
 310   gdouble ratio, ratio_w, ratio_h;
 311
 312
 313   get_page_dimensions (pinfo, &width, &height, GTK_UNIT_INCH);
 314   ratio_w = 100 * pinfo->data->width / pinfo->data->xres / width;
 315   ratio_h = 100 * pinfo->data->height / pinfo->data->yres / height;
 316
 317   ratio = MAX(ratio_w, ratio_h);
 318   g_signal_handlers_block_by_func(GTK_RANGE(pinfo->scale), scale_change_value_cb, pinfo);
 319   gtk_range_set_value(GTK_RANGE(pinfo->scale), ratio);
 320   g_signal_handlers_unblock_by_func(GTK_RANGE(pinfo->scale), scale_change_value_cb, pinfo);
 321   set_scale_label(pinfo, ratio);
 322 }
 323
 324 static void update_page_setup (CustomWidgetInfo *pinfo)
 325 {
 326   gdouble paper_width;
 327   gdouble paper_height;
 328   gdouble offset_x_max, offset_y_max;
 329   PrintData    *data = pinfo->data;
 330
 331   get_page_dimensions (pinfo, &paper_width, &paper_height, GTK_UNIT_INCH);
 332   if ((paper_width < (pinfo->data->width / data->xres)) ||
 333       (paper_height < (pinfo->data->height / data->yres))) {
 334     gdouble xres, yres;
 335     xres = (gdouble) pinfo->data->width / paper_width;
 336     yres = (gdouble) pinfo->data->height / paper_height;
 337     data->xres = data->yres = MAX(xres, yres);
 338     vik_print_preview_set_image_dpi (VIK_PRINT_PREVIEW (pinfo->preview),
 339                                   data->xres, data->yres);
 340   }
 341   get_max_offsets (pinfo, &offset_x_max, &offset_y_max);
 342   vik_print_preview_set_image_offsets_max (VIK_PRINT_PREVIEW (pinfo->preview),
 343                                             offset_x_max, offset_y_max);
 344   update_offsets (pinfo);
 345   set_scale_value(pinfo);
 346   if (pinfo->preview)
 347     vik_print_preview_set_image_offsets (VIK_PRINT_PREVIEW (pinfo->preview),
 348                                      pinfo->data->offset_x, pinfo->data->offset_y);
 349
 350 }
 351
 352 static void page_setup_cb (GtkWidget *widget, CustomWidgetInfo *info)
 353 {
 354   PrintData *data = info->data;
 355   GtkPrintOperation *operation = data->operation;
 356   GtkPrintSettings  *settings;
 357   GtkPageSetup      *page_setup;
 358   GtkWidget         *toplevel;
 359
 360   toplevel = gtk_widget_get_toplevel (widget);
 361   if (! GTK_WIDGET_TOPLEVEL (toplevel))
 362     toplevel = NULL;
 363
 364   settings = gtk_print_operation_get_print_settings (operation);
 365   if (! settings)
 366     settings = gtk_print_settings_new ();
 367
 368   page_setup = gtk_print_operation_get_default_page_setup (operation);
 369
 370   page_setup = gtk_print_run_page_setup_dialog (GTK_WINDOW (toplevel),
 371                                                 page_setup, settings);
 372
 373   gtk_print_operation_set_default_page_setup (operation, page_setup);
 374
 375   vik_print_preview_set_page_setup (VIK_PRINT_PREVIEW (info->preview),
 376                                      page_setup);
 377
 378   update_page_setup (info);
 379
 380 }
 381
 382 static void full_page_toggled_cb (GtkWidget *widget, CustomWidgetInfo *pinfo)
 383 {
 384   gboolean active = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget));
 385
 386   pinfo->data->use_full_page = active;
 387   update_page_setup (pinfo);
 388   vik_print_preview_set_use_full_page (VIK_PRINT_PREVIEW(pinfo->preview),
 389                                         active);
 390 }
 391
 392 static void set_center_none (CustomWidgetInfo *info)
 393 {
 394   info->data->center = VIK_PRINT_CENTER_NONE;
 395
 396   if (info->center_combo) {
 397     g_signal_handlers_block_by_func (info->center_combo,
 398                                        center_changed_cb, info);
 399
 400     info->data->center = VIK_PRINT_CENTER_NONE;
 401     gtk_combo_box_set_active(GTK_COMBO_BOX(info->center_combo), info->data->center);
 402     g_signal_handlers_unblock_by_func (info->center_combo,
 403                                          center_changed_cb, info);
 404   }
 405 }
 406
 407 static void preview_offsets_changed_cb (GtkWidget *widget,
 408                                         gdouble    offset_x, gdouble    offset_y,
 409                                         CustomWidgetInfo *info)
 410 {
 411   set_center_none (info);
 412
 413   info->data->offset_x = offset_x;
 414   info->data->offset_y = offset_y;
 415
 416   update_offsets (info);
 417
 418 }
 419
 420 static void get_page_dimensions (CustomWidgetInfo *info,
 421                                      gdouble       *page_width,
 422                                      gdouble       *page_height,
 423                                      GtkUnit        unit)
 424 {
 425   GtkPageSetup *setup;
 426
 427   setup = gtk_print_operation_get_default_page_setup (info->data->operation);
 428
 429   *page_width = gtk_page_setup_get_paper_width (setup, unit);
 430   *page_height = gtk_page_setup_get_paper_height (setup, unit);
 431
 432   if (!info->data->use_full_page) {
 433     gdouble left_margin = gtk_page_setup_get_left_margin (setup, unit);
 434     gdouble right_margin = gtk_page_setup_get_right_margin (setup, unit);
 435     gdouble top_margin = gtk_page_setup_get_top_margin (setup, unit);
 436     gdouble bottom_margin = gtk_page_setup_get_bottom_margin (setup, unit);
 437
 438     *page_width -= left_margin + right_margin;
 439     *page_height -= top_margin + bottom_margin;
 440   }
 441
 442 }
 443
 444 static void get_max_offsets (CustomWidgetInfo *info,
 445                                        gdouble *offset_x_max,
 446                                        gdouble *offset_y_max)
 447 {
 448   gdouble width;
 449   gdouble height;
 450
 451   get_page_dimensions (info, &width, &height, GTK_UNIT_POINTS);
 452
 453   *offset_x_max = width - 72.0 * info->data->width / info->data->xres;
 454   *offset_x_max = MAX (0, *offset_x_max);
 455
 456   *offset_y_max = height - 72.0 * info->data->height / info->data->yres;
 457   *offset_y_max = MAX (0, *offset_y_max);
 458 }
 459
 460 static void update_offsets (CustomWidgetInfo *info)
 461 {
 462   PrintData *data = info->data;
 463   gdouble    offset_x_max;
 464   gdouble    offset_y_max;
 465
 466   get_max_offsets (info, &offset_x_max, &offset_y_max);
 467
 468   switch (data->center) {
 469     case VIK_PRINT_CENTER_NONE:
 470       if (data->offset_x > offset_x_max)
 471         data->offset_x = offset_x_max;
 472       if (data->offset_y > offset_y_max)
 473         data->offset_y = offset_y_max;
 474       break;
 475
 476     case VIK_PRINT_CENTER_HORIZONTALLY:
 477       data->offset_x = offset_x_max / 2.0;
 478       break;
 479
 480     case VIK_PRINT_CENTER_VERTICALLY:
 481       data->offset_y = offset_y_max / 2.0;
 482       break;
 483
 484     case VIK_PRINT_CENTER_BOTH:
 485       data->offset_x = offset_x_max / 2.0;
 486       data->offset_y = offset_y_max / 2.0;
 487       break;
 488     }
 489 }
 490
 491 static void center_changed_cb (GtkWidget *combo, CustomWidgetInfo *info)
 492 {
 493   info->data->center = gtk_combo_box_get_active(GTK_COMBO_BOX(combo));
 494   update_offsets (info);
 495
 496   if (info->preview)
 497     vik_print_preview_set_image_offsets (VIK_PRINT_PREVIEW (info->preview),
 498                                      info->data->offset_x, info->data->offset_y);
 499 }
 500
 501 static gboolean scale_change_value_cb(GtkRange     *range,
 502                                  GtkScrollType scroll,
 503                                  gdouble       value,
 504                                  CustomWidgetInfo  *pinfo)
 505 {
 506   gdouble paper_width;
 507   gdouble paper_height;
 508   gdouble xres, yres, res;
 509   gdouble offset_x_max, offset_y_max;
 510   gdouble scale = CLAMP(value, 1, 100);
 511
 512   get_page_dimensions (pinfo, &paper_width, &paper_height, GTK_UNIT_INCH);
 513   xres = pinfo->data->width * 100 / paper_width / scale;
 514   yres = pinfo->data->height * 100 / paper_height / scale;
 515   res = MAX(xres, yres);
 516   pinfo->data->xres = pinfo->data->yres = res;
 517   get_max_offsets (pinfo, &offset_x_max, &offset_y_max);
 518   update_offsets (pinfo);
 519   if (pinfo->preview) {
 520     vik_print_preview_set_image_dpi (VIK_PRINT_PREVIEW (pinfo->preview),
 521                                   pinfo->data->xres, pinfo->data->yres);
 522     vik_print_preview_set_image_offsets (VIK_PRINT_PREVIEW (pinfo->preview),
 523                                   pinfo->data->offset_x, pinfo->data->offset_y);
 524     vik_print_preview_set_image_offsets_max (VIK_PRINT_PREVIEW (pinfo->preview),
 525                                             offset_x_max, offset_y_max);
 526   }
 527
 528   set_scale_label(pinfo, scale);
 529
 530   return FALSE;
 531 }
 532
 533 static void custom_widgets_cleanup(CustomWidgetInfo *info)
 534 {
 535   g_free(info);
 536 }
 537
 538 static GtkWidget *create_custom_widget_cb(GtkPrintOperation *operation, PrintData *data)
 539 {
 540   GtkWidget    *layout;
 541   GtkWidget    *main_hbox;
 542   GtkWidget    *main_vbox;
 543   GtkWidget    *hbox;
 544   GtkWidget    *vbox;
 545   GtkWidget    *button;
 546   GtkWidget    *label;
 547   GtkPageSetup *setup;
 548
 549   CustomWidgetInfo  *info = g_malloc0(sizeof(CustomWidgetInfo));
 550   g_signal_connect_swapped (data->operation, _("done"), G_CALLBACK (custom_widgets_cleanup), info);
 551
 552
 553   info->data = data;
 554
 555   setup = gtk_print_operation_get_default_page_setup (data->operation);
 556   if (! setup) {
 557     setup = gtk_page_setup_new ();
 558     gtk_print_operation_set_default_page_setup (data->operation, setup);
 559   }
 560
 561   layout = gtk_vbox_new (FALSE, 6);
 562   gtk_container_set_border_width (GTK_CONTAINER (layout), 12);
 563
 564   /*  main hbox  */
 565   main_hbox = gtk_hbox_new (FALSE, 12);
 566   gtk_box_pack_start (GTK_BOX (layout), main_hbox, TRUE, TRUE, 0);
 567   gtk_widget_show (main_hbox);
 568
 569   /*  main vbox  */
 570   main_vbox = gtk_vbox_new (FALSE, 12);
 571   gtk_box_pack_start (GTK_BOX (main_hbox), main_vbox, FALSE, FALSE, 0);
 572   gtk_widget_show (main_vbox);
 573
 574   vbox = gtk_vbox_new (FALSE, 6);
 575   gtk_box_pack_start (GTK_BOX (main_vbox), vbox, FALSE, FALSE, 0);
 576   gtk_widget_show (vbox);
 577
 578   /* Page Size */
 579   button = gtk_button_new_with_mnemonic (_("_Adjust Page Size "
 580                                            "and Orientation"));
 581   gtk_box_pack_start (GTK_BOX (main_vbox), button, FALSE, FALSE, 0);
 582   g_signal_connect (G_OBJECT (button), "clicked",
 583                     G_CALLBACK (page_setup_cb),
 584                     info);
 585   gtk_widget_show (button);
 586
 587   /* Center */
 588   GtkWidget *combo;
 589   const PrintCenterName *center;
 590
 591   hbox = gtk_hbox_new (FALSE, 6);
 592   gtk_box_pack_start (GTK_BOX (main_vbox), hbox, FALSE, FALSE, 0);
 593   gtk_widget_show (hbox);
 594
 595   label = gtk_label_new_with_mnemonic (_("C_enter:"));
 596   gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
 597   gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
 598   gtk_widget_show (label);
 599
 600   combo = gtk_combo_box_new_text ();
 601   for (center = center_modes; center->name; center++) {
 602     gtk_combo_box_append_text(GTK_COMBO_BOX(combo), _(center->name));
 603   }
 604   gtk_combo_box_set_active(GTK_COMBO_BOX(combo), VIK_PRINT_CENTER_BOTH);
 605   gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
 606   gtk_widget_show (combo);
 607   gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
 608   g_signal_connect(combo, "changed",
 609                    G_CALLBACK(center_changed_cb), info);
 610   info->center_combo = combo;
 611
 612   /* ignore page margins */
 613   button = gtk_check_button_new_with_mnemonic (_("Ignore Page _Margins"));
 614
 615   gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button),
 616                                 data->use_full_page);
 617   gtk_box_pack_start (GTK_BOX (main_vbox), button, FALSE, FALSE, 0);
 618   g_signal_connect (button, "toggled",
 619                     G_CALLBACK (full_page_toggled_cb),
 620                     info);
 621   gtk_widget_show (button);
 622
 623   /* scale */
 624   vbox = gtk_vbox_new (FALSE, 1);
 625   gtk_box_pack_start (GTK_BOX (main_vbox), vbox, FALSE, FALSE, 0);
 626   gtk_widget_show (vbox);
 627
 628   hbox = gtk_hbox_new (FALSE, 6);
 629   gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
 630   gtk_widget_show (hbox);
 631
 632   label = gtk_label_new_with_mnemonic (_("Image S_ize:"));
 633   gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
 634   gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
 635   gtk_widget_show (label);
 636
 637   label = gtk_label_new (NULL);
 638   gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
 639   info->scale_label = label;
 640   gtk_box_pack_start (GTK_BOX (hbox), info->scale_label, TRUE, TRUE, 0);
 641   gtk_widget_show (info->scale_label);
 642
 643   info->scale = gtk_hscale_new_with_range(1, 100, 1);
 644   gtk_box_pack_start (GTK_BOX (vbox), info->scale, TRUE, TRUE, 0);
 645   gtk_scale_set_draw_value(GTK_SCALE(info->scale), FALSE);
 646   gtk_widget_show (info->scale);
 647   gtk_label_set_mnemonic_widget (GTK_LABEL (label), info->scale);
 648
 649   g_signal_connect(info->scale, "change_value",
 650                    G_CALLBACK(scale_change_value_cb), info);
 651
 652
 653   info->preview = vik_print_preview_new (setup, GDK_DRAWABLE(vik_viewport_get_pixmap(data->vvp)));
 654   vik_print_preview_set_use_full_page (VIK_PRINT_PREVIEW(info->preview),
 655                                         data->use_full_page);
 656   gtk_box_pack_start (GTK_BOX (main_hbox), info->preview, TRUE, TRUE, 0);
 657   gtk_widget_show (info->preview);
 658
 659   g_signal_connect (info->preview, "offsets-changed",
 660                     G_CALLBACK (preview_offsets_changed_cb),
 661                     info);
 662
 663   update_page_setup (info);
 664
 665   gdouble offset_x_max, offset_y_max;
 666   get_max_offsets (info, &offset_x_max, &offset_y_max);
 667   vik_print_preview_set_image_offsets_max (VIK_PRINT_PREVIEW (info->preview),
 668                                             offset_x_max, offset_y_max);
 669
 670   set_scale_value(info);
 671
 672   return layout;
 673 }
 674
 675 #endif