pageBar/src/gtkPagebar.c Source File

00001 /*
00002  * This file is part of pageBar.
00003  *
00004  * pageBar is free software: you can redistribute it and/or modify
00005  * it under the terms of the GNU General Public License as published by
00006  * the Free Software Foundation, either version 2 of the License, or
00007  * (at your option) any later version.
00008  *
00009  * pageBar is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
00012  * GNU General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU General Public License
00015  * along with this program. If not, see <http://www.gnu.org/licenses/>.
00016  */
00017 
00023 //
00024 // C++ Implementation: gtkPageBar
00025 //
00026 // Description: 
00027 //
00028 //
00029 // Author: ann <ann@localhost>, (C) 2005
00030 //
00031 // Copyright: See COPYING file that comes with this distribution
00032 //
00033 //
00034 
00035 
00036 #include <liberdm/display.h> 
00037 #include <liberdm/erdm.h>
00038 #include <liberipc/eripcpagebar.h>
00039 #include <liberipc/eripcviewer.h>
00040 #include <liberipc/eripcbusyd.h>
00041 #include <liberipc/eripccontentlister.h>
00042 #include <liberipc/eripcsetup.h>
00043 #include <liberipc/eripcconnect.h>
00044 #include <liberipc/eripcarinc.h>
00045 #include "gtkPagebar.h"
00046 #include "displayUpdate.h"
00047 
00048 // DEBUG DEFINES
00049 #ifdef DEBUG_PRINTS
00050 #define PRINT_TRACE(X)  printf X
00051 #define PRINT_DEBUG(X)  printf X
00052 #define PRINT_INFO(X)   printf X
00053 #else
00054 #define PRINT_TRACE(X)  ;
00055 #define PRINT_DEBUG(X)  ;
00056 #define PRINT_INFO(X)   ;
00057 #endif
00058 
00059 #define PRINT_ERROR(X)  printf X
00060 
00061 //#define DEBUG_FLOW_LEVEL 1
00062 #ifdef DEBUG_FLOW_LEVEL
00063 #define ENTER(x) {if (x<DEBUG_FLOW_LEVEL) printf("%s: Entered\n", __FUNCTION__);}
00064 #define LEAVE(x) {if (x<DEBUG_FLOW_LEVEL) printf("%s: Left \n", __FUNCTION__);}
00065 #else
00066 #define ENTER(x) ;
00067 #define LEAVE(x) ;
00068 #endif
00069 
00070 #define RETURN(x) {ret=x; goto end;}
00071 
00072 #define PAGE_BAR_PADDING        2
00073 #define PAGEBAR_BUTTON_PADDING 2
00074 
00075 #define PAGEBAR_LISTBLOCKSIZE 128
00076 
00077 #define PAGEBAR_ORIENTATION_X   0   // zeng: hor, provide vertical support
00078 #define PAGEBAR_ORIENTATION_Y   1   // zeng: ver, provide vertical support 
00079 #define SCROLLBOX_LEFT          0   // scroll box
00080 #define SCROLLBOX_RIGHT         1
00081 #define SCROLLBOX_NONE          -1
00082 #define TIMER_SPAN              1500 // one second does not work. use too many cpu resource
00083 
00084 #define TRACE()
00085 /*\
00086 {\
00087     fprintf(stderr, "%s %d %s\n", __FILE__, __LINE__, __func__);\
00088 }
00089 */
00090 
00091 enum
00092 {
00093     PAGE_SELECTED,  // signals emitted when the user selects a page, using the page bar
00094     LAST_SIGNAL,
00095 };
00096 
00097 static gint  pagebar_signals[LAST_SIGNAL] = { 0 };
00098 
00099 static gboolean on_pagebar_exposed(GtkWidget *widget, GdkEventExpose *event, gpointer user_data);
00100 static gboolean on_pagebar_configured(GtkWidget *widget, GdkEventConfigure *event, gpointer user_data);
00101 static gboolean on_pagebar_button_press_event (GtkWidget *widget, GdkEventButton *event, gpointer user_data);
00102 static gboolean on_pagebar_button_release_event (GtkWidget *widget, GdkEventButton *event, gpointer user_data);
00103 
00104 // zeng. used to draw page bar
00105 static void pagebar_calculate(GtkPagebar *pagebar);
00106 static void pagebar_draw_cpi(GtkPagebar *pagebar);
00107 static void pagebar_draw_left(GtkPagebar *pagebar);
00108 static void pagebar_draw_right(GtkPagebar *pagebar);
00109 static int  pagebar_scrollbox_hitTest(GtkPagebar *pagebar, int, int);
00110 static gboolean pagebar_scrollbox_needLeft(GtkPagebar *pagebar);
00111 static gboolean pagebar_scrollbox_needRight(GtkPagebar *pagebar);
00112 static int framebuffer_device;
00113 
00114 static void gtk_pagebar_class_init (GtkPagebarClass *klass);
00115 static void gtk_pagebar_init (GtkPagebar *pagebar);
00116 
00117 static erClientChannel_t apabiChannel;
00118 static erClientChannel_t pdfChannel;
00119 static erClientChannel_t xhtmlChannel;
00120 static erClientChannel_t contentListerChannel;
00121 static erClientChannel_t scribbleChannel;
00122 static erClientChannel_t setupChannel;
00123 static erClientChannel_t connectChannel;
00124 static erClientChannel_t ebaChannel;
00125 static erClientChannel_t arincViewerChannel;
00126 static erClientChannel_t arincMenuChannel;
00127 static erClientChannel_t mobipocketChannel;
00128 
00129 static int loadBitmap(GdkPixbuf** buf, char* filename) {
00130     GError *error = NULL;
00131     int ret=0;
00132 
00133     ENTER(1);
00134 
00135     (*buf) = gdk_pixbuf_new_from_file(filename, &error);
00136     if ((*buf)==NULL) {
00137         PRINT_ERROR(("Error loading bitmap %s (%s)\n", filename, error->message));
00138         RETURN(-1);
00139     }
00140 
00141 end:
00142     LEAVE(1);
00143     return ret;
00144 }
00145 
00146 static int addToList(int** list, int* count, int value) {
00147     int i;
00148     int ret=0;
00149 
00150     ENTER(1);
00151 
00152     if (value<0)
00153         RETURN(-1);
00154 
00155     if (!(*list)) {
00156         (*list)=(int*)malloc(PAGEBAR_LISTBLOCKSIZE*sizeof(int));
00157         for (i=0; i<PAGEBAR_LISTBLOCKSIZE; i++)
00158             (*list)[i]=-1;
00159         *count = PAGEBAR_LISTBLOCKSIZE;
00160     }
00161 
00162     i=0;
00163     while (i<*count && (*list)[i]!=-1 && (*list)[i]!=value)
00164         i++;
00165 
00166     /* If the value is already present, we exit */
00167     if (i<*count && (*list)[i]==value)
00168         RETURN(0);
00169 
00170 
00171     /* If we ran out of space, we realloc the list */
00172     if (i==*count) {
00173         (*list)=(int*)realloc(*list, (*count+PAGEBAR_LISTBLOCKSIZE)*sizeof(int));
00174         for (i=0; i<PAGEBAR_LISTBLOCKSIZE; i++)
00175             (*list)[i+*count]=-1;
00176         *count += PAGEBAR_LISTBLOCKSIZE;
00177     }
00178 
00179     (*list)[i]=value;
00180 
00181 end:
00182     LEAVE(1);
00183     return ret;
00184 }
00185 
00186 static int removeFromList(int** list, int* count, int value) {
00187     int i;
00188 
00189     ENTER(1);
00190 
00191     i=0;
00192     while (i<*count && (*list)[i]!=value && (*list)[i]!=-1)
00193         i++;
00194     if (i<*count && (*list)[i]==value) {
00195         memmove(*list, (*list)+1, *count-i-1);
00196         (*list)[*count-1]=-1;
00197         *count--;
00198     }
00199 
00200     LEAVE(1);
00201     return 0;
00202 }
00203 
00204 int addBookmark(GtkPagebar* pagebar, int value) {
00205     return addToList(&pagebar->bookmarks, &pagebar->bookmarkCount, value);
00206 }
00207 
00208 int addNote(GtkPagebar* pagebar, int value) {
00209     return addToList(&pagebar->notes, &pagebar->noteCount, value);
00210 }
00211 
00212 int removeBookmark(GtkPagebar* pagebar, int value) {
00213     return removeFromList(&pagebar->bookmarks, &pagebar->bookmarkCount, value);
00214 }
00215 
00216 int removeNote(GtkPagebar* pagebar, int value) {
00217     return removeFromList(&pagebar->notes, &pagebar->noteCount, value);
00218 }
00219 
00220 int pagebar_reset_values(GtkPagebar* pagebar) {
00221     ENTER(0);
00222 
00223     pagebar->pagecount = PAGEBAR_DEFAULT_PAGECOUNT;
00224     pagebar->currentPage = PAGEBAR_DEFAULT_CURRENTPAGE;
00225     pagebar->currentPageOffset = PAGEBAR_DEFAULT_CURRENTPAGEOFFSET;
00226     pagebar->zoomMode = PAGEBAR_DEFAULT_ZOOMMODE;
00227     pagebar->orientation = PAGEBAR_DEFAULT_ORIENTATION;
00228     pagebar->drawAreaXPos = PAGEBAR_DEFAULT_DRAWAREAXPOS;
00229     pagebar->drawAreaYPos = PAGEBAR_DEFAULT_DRAWAREAYPOS;
00230     pagebar->drawAreaWidth = PAGEBAR_DEFAULT_DRAWAREAWIDTH;
00231     pagebar->drawAreaHeight = PAGEBAR_DEFAULT_DRAWAREAHEIGHT;
00232     pagebar->barXPos = PAGEBAR_DEFAULT_BARXPOS;
00233     pagebar->barYPos = PAGEBAR_DEFAULT_BARYPOS;
00234     pagebar->barWidth = PAGEBAR_DEFAULT_BARWIDTH;
00235     pagebar->barHeight = PAGEBAR_DEFAULT_BARHEIGHT;
00236     pagebar->cpiHeight = PAGEBAR_DEFAULT_CPIHEIGHT;
00237     pagebar->cpiWidth = PAGEBAR_DEFAULT_CPIWIDTH;
00238     pagebar->barFontType = PAGEBAR_DEFAULT_BARFONTTYPE;
00239     pagebar->barFontHeight = PAGEBAR_DEFAULT_BARFONTHEIGHT;
00240     pagebar->cpiFontType = PAGEBAR_DEFAULT_CPIFONTTYPE;
00241     pagebar->cpiFontHeight = PAGEBAR_DEFAULT_CPIFONTHEIGHT;
00242     pagebar->pageFieldWidth = PAGEBAR_DEFAULT_PAGEFIELDWIDTH;
00243     pagebar->pageFieldHeight = PAGEBAR_DEFAULT_PAGEFIELDHEIGHT;
00244     pagebar->pageOffsetWidth = PAGEBAR_DEFAULT_PAGEOFFSETWIDTH;
00245     pagebar->pageOffsetHeight = PAGEBAR_DEFAULT_PAGEOFFSETHEIGHT;
00246     pagebar->pageOffsetXOffset = PAGEBAR_DEFAULT_PAGEOFFSETXOFFSET;
00247     pagebar->pageOffsetYOffset = PAGEBAR_DEFAULT_PAGEOFFSETYOFFSET;
00248     pagebar->bookmarkCount = PAGEBAR_DEFAULT_BOOKMARKCOUNT;
00249     pagebar->bookmarkMaxValue = PAGEBAR_DEFAULT_BOOKMARKMAXVALUE;
00250     pagebar->noteCount = PAGEBAR_DEFAULT_NOTECOUNT;
00251     pagebar->notesMaxValue = PAGEBAR_DEFAULT_NOTESMAXVALUE;
00252     pagebar->scrollButtonWidth = PAGEBAR_DEFAULT_SCROLLBUTTONWIDTH;
00253     pagebar->show = PAGEBAR_DEFAULT_SHOW;
00254     if (PAGEBAR_TIMER_PROGRESS  != pagebar->currentTimer)
00255         pagebar->currentTimer = PAGEBAR_TIMER_NONE;
00256 
00257     pagebar->lastPage = -1;
00258     pagebar->lastDrawAreaXPos = pagebar->lastDrawAreaYPos = -1;
00259 
00260     if (pagebar->bookmarks)
00261         free(pagebar->bookmarks);
00262     if (pagebar->notes)
00263         free(pagebar->notes);
00264 
00265     pagebar->bookmarks = NULL;
00266     pagebar->notes = NULL;
00267 
00268     LEAVE(0);
00269     return 0;
00270 }
00271 
00272 int pagebar_load_bitmaps(GtkPagebar* pagebar)
00273 {
00274     int ret = 0;
00275 #ifdef USE_BITMAPS
00276     /* Load bitmaps */
00277     if (loadBitmap(&(pagebar->bitmaps[bitmap_CPI]), DATA_DIR "/pagebar_cpi.png"))
00278         RETURN(-1);
00279     pagebar->cpiWidth = gdk_pixbuf_get_width(pagebar->bitmaps[bitmap_CPI]);
00280     pagebar->cpiHeight = gdk_pixbuf_get_height(pagebar->bitmaps[bitmap_CPI]);
00281     /* MvdW: removed collapse/expand bitmaps
00282     if (loadBitmap(&(pagebar->bitmaps[bitmap_CPIExpand]), DATA_DIR "/pagebar_cpiexpand.png"))
00283     RETURN(-1);
00284     if (loadBitmap(&(pagebar->bitmaps[bitmap_CPICollapse]), DATA_DIR "/pagebar_cpicollapse.png"))
00285     RETURN(-1); */
00286     if (loadBitmap(&(pagebar->bitmaps[bitmap_PageField]), DATA_DIR "/pagebar_pagefield.png"))
00287         RETURN(-1);
00288     pagebar->pageFieldWidth = gdk_pixbuf_get_width(pagebar->bitmaps[bitmap_PageField]);
00289     pagebar->pageFieldHeight = gdk_pixbuf_get_height(pagebar->bitmaps[bitmap_PageField]);
00290     if (loadBitmap(&(pagebar->bitmaps[bitmap_ScrollLeft]), DATA_DIR "/pagebar_scrollleft.png"))
00291         RETURN(-1);
00292     pagebar->scrollButtonWidth = gdk_pixbuf_get_width(pagebar->bitmaps[bitmap_ScrollLeft]);
00293     if (loadBitmap(&(pagebar->bitmaps[bitmap_ScrollRight]), DATA_DIR "/pagebar_scrollright.png"))
00294         RETURN(-1);
00295     if (loadBitmap(&(pagebar->bitmaps[bitmap_Bookmark]), DATA_DIR "/pagebar_bookmark.png"))
00296         RETURN(-1);
00297     if (loadBitmap(&(pagebar->bitmaps[bitmap_Note]), DATA_DIR "/pagebar_note.png"))
00298         RETURN(-1);
00299 #endif
00300 
00301 end:
00302     return ret;
00303 }
00304 
00305 /* Create a new backing pixmap of the appropriate size */
00306 static gboolean on_pagebar_configured(GtkWidget *widget, GdkEventConfigure *event, gpointer user_data)
00307 {
00308     GtkPagebar* pagebar = GTK_PAGEBAR(user_data);
00309 
00310     ENTER(0);
00311 
00312     if (pagebar->pixmap)
00313         g_object_unref (pagebar->pixmap);
00314 
00315     pagebar->pixmap = gdk_pixmap_new (widget->window,
00316         widget->allocation.width,
00317         widget->allocation.height,
00318         -1);
00319     gdk_draw_rectangle (pagebar->pixmap,
00320         widget->style->white_gc,
00321         TRUE,
00322         0, 0,
00323         widget->allocation.width,
00324         widget->allocation.height);
00325 
00326     gtk_pagebar_draw(pagebar);
00327     LEAVE(0);
00328     return TRUE;
00329 }
00330 
00331 /* Redraw the screen from the backing pixmap */
00332 static gboolean on_pagebar_exposed(GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
00333 {
00334 
00335     GtkPagebar* pagebar = GTK_PAGEBAR(user_data);
00336 
00337     ENTER(0);
00338 
00339     /* Copy image from pixmap to output */
00340     gdk_draw_drawable (widget->window,  
00341         widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
00342         pagebar->pixmap,
00343         event->area.x, event->area.y,
00344         event->area.x, event->area.y,
00345         event->area.width, event->area.height);
00346     
00347     LEAVE(0);
00348     return FALSE;
00349 }
00350 
00351 static gboolean on_pagebar_button_release_event (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
00352 {
00353     ENTER(1);
00354 
00355     PRINT_TRACE(("button_release_event -- location %dx%d - %dx%d \n",(int)event->x,(int)event->y,(int)event->x_root,(int)event->y_root));
00356 
00357     LEAVE(1);
00358 
00359     return TRUE;        
00360 }
00361 
00362 static int currentPageChanged(GtkPagebar* pagebar) {
00363     erClientChannel_t channel;
00364     int ret = 0;
00365 
00366     ENTER(1);
00367 
00368     if (pagebar->lastPage==pagebar->currentPage)
00369         RETURN (0);
00370 
00371     pagebar->lastPage=pagebar->currentPage;
00372     gtk_pagebar_draw(pagebar);
00373 
00374     switch (pagebar->currentApp) {
00375         case ER_APABI_VIEWER_UA_ID:
00376             channel = apabiChannel;
00377             break;
00378         case ER_PDF_VIEWER_UA_ID:
00379             channel = pdfChannel;
00380             break;
00381         case ER_XHTML_VIEWER_UA_ID:
00382             channel = xhtmlChannel;
00383             break;
00384         case ER_SCRIBBLE_UA_ID:
00385             channel = scribbleChannel;
00386             break;
00387         case ER_CONTENT_LISTER_UA_ID:
00388             channel = contentListerChannel;
00389             clGotoPage(channel, pagebar->currentPage);
00390             RETURN (0);
00391         case ER_SETUP_UA_ID:
00392             channel = setupChannel;
00393             stGotoPage(channel, pagebar->currentPage);
00394             RETURN (0);
00395         case ER_CONNECT_UA_ID:
00396             channel = connectChannel;
00397             cnGotoPage(channel, pagebar->currentPage);
00398             RETURN (0);
00399         case ER_EBA_VIEWER_UA_ID:
00400             channel = ebaChannel;
00401             break;
00402         case ER_ARINC_VIEWER_UA_ID:
00403             channel = arincViewerChannel;
00404             arincJumpToPage(channel, pagebar->currentApp, pagebar->currentPage);
00405             RETURN (0);
00406         case ER_ARINC_MENU_UA_ID:
00407             channel = arincMenuChannel;
00408             arincJumpToPage(channel, pagebar->currentApp, pagebar->currentPage);
00409             RETURN (0);
00410         case ER_MOBIPOCKET_VIEWER_UA_ID:
00411             channel = mobipocketChannel;
00412             break;
00413         default:
00414             return -1;
00415     }    
00416     vwrJumpToPage(channel, pagebar->currentApp, pagebar->currentPage);
00417 
00418 end:
00419     LEAVE(1);
00420     return ret;
00421 }
00422 
00423 /***
00424 static void on_pageentry_activate(GtkWidget *widget, gpointer user_data) {
00425     GtkPagebar* pagebar = GTK_PAGEBAR(user_data);
00426 
00427     ENTER(0);
00428     int page = atoi(gtk_entry_get_text(GTK_ENTRY(widget)));
00429     if (page<1)
00430         page=1;
00431     else if (page>pagebar->pagecount)
00432         page=pagebar->pagecount;
00433 
00434     pagebar->currentPage=page;
00435     currentPageChanged(pagebar);
00436 
00437     LEAVE(0);
00438 }
00439 ***/
00440 
00441 /***
00442 static gboolean on_gtk_idle_callback(gpointer data) {
00443     //    XImage *xi;
00444 
00445     ENTER(1);
00446 
00447     gdk_threads_enter();
00448     //    xi = XGetImage(GDK_DISPLAY(), GDK_ROOT_WINDOW(), 0, 0, 1, 1, AllPlanes, XYPixmap);
00449     gdk_flush();
00450     //    XDestroyImage(xi);
00451     gdk_threads_leave();
00452     dmDisplay(dmCmdPriorUrgent, dmQBW);
00453 
00454     LEAVE(1);
00455 
00456     return FALSE;
00457 }
00458 ***/
00459 
00460 /***
00461 static gboolean on_text_changed(GtkWidget * widget, int level, gpointer data) {
00462 
00463     ENTER(1);
00464 
00465     gtk_idle_add(on_gtk_idle_callback, (gpointer) 0);
00466 
00467     LEAVE(1);
00468 
00469     return TRUE;
00470 }
00471 ***/
00472 
00473 
00474 static gboolean on_pagebar_button_press_event (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
00475 {
00476     GtkPagebar* pagebar = GTK_PAGEBAR(user_data);
00477     int x=event->x;
00478     int y=event->y;
00479     int i;
00480     int j;
00481 
00482 
00483     ENTER(0);
00484 
00485     PRINT_TRACE(("button_press_event -- location %dx%d - %dx%d \n",(int)event->x,(int)event->y,(int)event->x_root,(int)event->y_root));
00486 
00487     /* Check if we clicked on the CPI */
00488     if (x>=pagebar->barXPos+(pagebar->barWidth-pagebar->cpiWidth)/2 && x<=pagebar->barXPos+(pagebar->barWidth+pagebar->cpiWidth)/2 &&
00489         y>=pagebar->barYPos+(pagebar->barHeight-pagebar->cpiHeight)/2 && y<=pagebar->barYPos+(pagebar->barHeight+pagebar->cpiHeight)/2)
00490     {
00491         /* Did we press the expand/collapse button?  -- disabled */
00492         /***
00493         if (y<pagebar->barYPos+(pagebar->barHeight-pagebar->cpiHeight)/2+10) {
00494         pagebar->zoomMode=!pagebar->zoomMode;
00495         gtk_pagebar_draw(pagebar);
00496         dmDisplay(dmCmdPriorUrgent, dmQFull);
00497         }
00498         else {
00499         ***/
00500 
00501         /***
00502         gtk_widget_show(pagebar->pageEntry);
00503         gtk_widget_grab_focus(pagebar->pageEntry);
00504         gtk_entry_set_text(GTK_ENTRY(pagebar->pageEntry), "");
00505         gtk_entry_set_alignment(GTK_ENTRY(pagebar->pageEntry), 0.5);
00506         gtk_entry_set_activates_default(GTK_ENTRY(pagebar->pageEntry), TRUE);
00507         g_signal_connect(GTK_OBJECT(pagebar->pageEntry), "activate", G_CALLBACK(on_pageentry_activate),pagebar);
00508         gtk_signal_connect(GTK_OBJECT(pagebar->pageEntry), "changed", GTK_SIGNAL_FUNC(on_text_changed),pagebar);
00509         gtk_signal_connect(GTK_OBJECT(pagebar->drawingArea), "expose-event", GTK_SIGNAL_FUNC(on_pagebar_exposed),pagebar);
00510         ***/
00511 
00512         // zeng. update . according to new design
00513         pagebar->zoomMode=!pagebar->zoomMode;
00514         gtk_pagebar_draw(pagebar);
00515        
00516 
00517         // change to DM_QUALITY_FULL if not acceptable
00518         display_update_request_screen_refresh(MAIN_WINDOW_EXPOSE_LEVEL, (void*) DM_QUALITY_TYPING);
00519     }
00520     else 
00521     {
00522         if (pagebar->zoomMode==0) {
00523             int smallBarWidth;
00524             smallBarWidth = (pagebar->barWidth-pagebar->cpiWidth)/2-pagebar->pageFieldWidth;
00525             /* Check if we clicked on the left part of the bar */
00526             if (x<pagebar->barXPos+(pagebar->barWidth-pagebar->cpiWidth)/2 && pagebar->currentPage!=1) {
00527                 i=pagebar->barXPos+(pagebar->barWidth-pagebar->cpiWidth)/2-x;
00528                 i=i*(pagebar->pagecount-2)/(smallBarWidth);
00529                 if (i<pagebar->currentPage-1) {
00530                     pagebar->currentPage-=(i+1);
00531                 }
00532                 else {
00533                     pagebar->currentPage=1;
00534                 }          
00535                 currentPageChanged(pagebar);
00536             }
00537             /* We clicked on the right part of the bar */ 
00538             else if (x>pagebar->barXPos+(pagebar->barWidth+pagebar->cpiWidth)/2 && pagebar->currentPage!=pagebar->pagecount) {
00539                 i=x-(pagebar->barXPos+(pagebar->barWidth+pagebar->cpiWidth)/2);
00540                 i=i*(pagebar->pagecount-2)/(smallBarWidth);
00541                 if (i<pagebar->pagecount-pagebar->currentPage) {
00542                     pagebar->currentPage+=(i+1);
00543                 }
00544                 else {
00545                     pagebar->currentPage=pagebar->pagecount;
00546                 }          
00547                 currentPageChanged(pagebar);
00548             } 
00549         }
00550         else if (pagebar->zoomMode==1) {
00551 
00552             /* Calculate the number of pages we can show on each side of the CPI */
00553             j = ((pagebar->barWidth-pagebar->cpiWidth)/2-pagebar->scrollButtonWidth)/pagebar->pageFieldWidth;
00554             /* Check if we clicked on the left part of the bar */
00555             if (x<pagebar->barXPos+(pagebar->barWidth-pagebar->cpiWidth)/2 &&
00556                 x>pagebar->barXPos+(pagebar->barWidth-pagebar->cpiWidth)/2-j*pagebar->pageFieldWidth &&
00557                 pagebar->currentPage!=1)
00558             {
00559                 i=pagebar->barXPos+(pagebar->barWidth-pagebar->cpiWidth)/2-x;
00560                 i/=pagebar->pageFieldWidth;
00561                 if (i<pagebar->currentPage-1 && i<j) 
00562                 {
00563                     pagebar->currentPage-=(i+1);
00564                     currentPageChanged(pagebar);
00565                 }
00566             }
00567             /* Check if we clicked on the right part of the bar */ 
00568             else if (x>pagebar->barXPos+(pagebar->barWidth+pagebar->cpiWidth)/2 && 
00569                 x<pagebar->barXPos+(pagebar->barWidth+pagebar->cpiWidth)/2+j*pagebar->pageFieldWidth && 
00570                 pagebar->currentPage!=pagebar->pagecount) 
00571             {
00572                 i=x-(pagebar->barXPos+(pagebar->barWidth+pagebar->cpiWidth)/2);
00573                 i/=pagebar->pageFieldWidth;
00574                 if (i<pagebar->pagecount-pagebar->currentPage && i<j) 
00575                 {
00576                     pagebar->currentPage+=(i+1);
00577                     currentPageChanged(pagebar);
00578                 } 
00579             } 
00580             /* Check if we clicked on the scroll left button */    
00581             /* replace j with pagebar->maxItems */       
00582             else if (SCROLLBOX_LEFT == pagebar_scrollbox_hitTest(pagebar, x, y))
00583             {
00584                 // MvdW: changed this to be non-confusing ;)
00585                 // the left & right were swapped. 
00586                 pagebar->currentPage-=2*pagebar->maxItems+1;
00587                 if (pagebar->currentPage<1)
00588                     pagebar->currentPage=1;
00589 
00590                 currentPageChanged(pagebar);
00591 
00592             }
00593             else if (SCROLLBOX_RIGHT == pagebar_scrollbox_hitTest(pagebar, x, y))
00594             {
00595                 pagebar->currentPage+=2*pagebar->maxItems+1;
00596                 if (pagebar->currentPage>pagebar->pagecount)
00597                     pagebar->currentPage=pagebar->pagecount;
00598 
00599                 currentPageChanged(pagebar);
00600             }
00601         }
00602     }
00603 
00604     LEAVE(0);
00605 
00606     return TRUE;
00607 }
00608 
00609 
00610 GType gtk_pagebar_get_type (void)
00611 {
00612     static GType pagebar_type = 0;
00613 
00614     if (!pagebar_type)
00615     {
00616         static const GTypeInfo pagebar_info =
00617         {
00618             sizeof (GtkPagebarClass),
00619             NULL, /* base_init */
00620             NULL, /* base_finalize */
00621             (GClassInitFunc) gtk_pagebar_class_init,
00622             NULL, /* class_finalize */
00623             NULL, /* class_data */
00624             sizeof (GtkPagebar),
00625             0,    /* n_preallocs */
00626             (GInstanceInitFunc) gtk_pagebar_init,
00627         };
00628 
00629         pagebar_type = g_type_register_static (GTK_TYPE_EVENT_BOX, "Pagebar", &pagebar_info, 0);  
00630     }
00631 
00632     return pagebar_type;
00633 }
00634 
00635 static void gtk_pagebar_class_init (GtkPagebarClass *klass)
00636 {
00637     GtkObjectClass *object_class;
00638 
00639     ENTER(0);
00640 
00641     object_class = (GtkObjectClass *) klass;
00642 
00643     // event to notify page update 
00644 
00645     pagebar_signals[PAGE_SELECTED] =
00646         g_signal_new ("pagebar_page_selected",
00647         G_OBJECT_CLASS_TYPE (object_class),
00648         G_SIGNAL_RUN_LAST,
00649         G_STRUCT_OFFSET (GtkPagebarClass, pagebar_page_selected),
00650         NULL, NULL,
00651         gtk_marshal_VOID__INT,
00652         G_TYPE_NONE,
00653         1,
00654         G_TYPE_INT);
00655     LEAVE(0);
00656 }
00657 
00658 static void gtk_pagebar_init(GtkPagebar *pagebar)
00659 {
00660     ENTER(0);
00661 
00662     /* create drawingarea */
00663     pagebar->drawingArea = gtk_drawing_area_new();
00664 
00665     gtk_widget_set_events (GTK_WIDGET(pagebar->drawingArea), GDK_EXPOSURE_MASK | GDK_LEAVE_NOTIFY_MASK |  GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK );
00666 
00667     gtk_container_add(GTK_CONTAINER(pagebar),pagebar->drawingArea);
00668 
00669     gtk_signal_connect(GTK_OBJECT(pagebar->drawingArea), "expose-event", GTK_SIGNAL_FUNC(on_pagebar_exposed),pagebar);
00670     gtk_signal_connect(GTK_OBJECT(pagebar->drawingArea), "configure-event", GTK_SIGNAL_FUNC(on_pagebar_configured),pagebar);
00671 
00672     g_signal_connect (G_OBJECT (pagebar->drawingArea), "button_press_event",  G_CALLBACK (on_pagebar_button_press_event), pagebar);
00673 
00674     g_signal_connect (G_OBJECT (pagebar->drawingArea), "button_release_event",  G_CALLBACK (on_pagebar_button_release_event), pagebar);
00675 
00676     erIpcStartClient(ER_APABI_VIEWER_CHANNEL,      &apabiChannel        );
00677     erIpcStartClient(ER_PDF_VIEWER_CHANNEL,        &pdfChannel          );
00678     erIpcStartClient(ER_XHTML_VIEWER_CHANNEL,      &xhtmlChannel        );
00679     erIpcStartClient(ER_CONTENTLISTER_CHANNEL,     &contentListerChannel);
00680     erIpcStartClient(ER_SCRIBBLE_CHANNEL,          &scribbleChannel     );
00681     erIpcStartClient(ER_SETUP_CHANNEL,             &setupChannel        );
00682     erIpcStartClient(ER_CONNECT_CHANNEL,           &connectChannel      );
00683     erIpcStartClient(ER_EBA_VIEWER_CHANNEL,        &ebaChannel          );
00684     erIpcStartClient(ER_ARINC_VIEWER_CHANNEL,      &arincViewerChannel  );
00685     erIpcStartClient(ER_ARINC_MENU_CHANNEL,        &arincMenuChannel    );
00686     erIpcStartClient(ER_MOBIPOCKET_VIEWER_CHANNEL, &mobipocketChannel   );
00687 
00688     gtk_widget_show(pagebar->drawingArea);
00689 
00690     LEAVE(0);
00691 }
00692 
00693 GtkWidget* gtk_pagebar_new()
00694 {
00695     GtkPagebar* pagebar;
00696     PangoFontDescription* fontdesc;
00697 
00698     ENTER(0);
00699 
00700     pagebar = (GtkPagebar*) g_object_new(GTK_PAGEBAR_TYPE,NULL);
00701 
00702     memset(pagebar->bitmaps, 0, sizeof(pagebar->bitmaps));
00703     pagebar->bookmarks = NULL;
00704     pagebar->notes = NULL;
00705 
00706     // init data fields
00707     pagebar_reset_values(pagebar);
00708     pagebar_load_bitmaps(pagebar);
00709 
00710     framebuffer_device = open("/dev/fb0", O_RDWR);    
00711 
00712     PRINT_DEBUG(("bar format %dx%d\n",pagebar->drawAreaWidth,pagebar->drawAreaHeight));
00713 
00714     gtk_drawing_area_size(GTK_DRAWING_AREA(pagebar->drawingArea),pagebar->drawAreaWidth,pagebar->drawAreaHeight);
00715 
00716     pagebar->pangolayout=gtk_widget_create_pango_layout(GTK_WIDGET(pagebar->drawingArea),"X");
00717     fontdesc = pango_font_description_from_string("Bitstream Vera 6.5");
00718 //    pango_font_description_set_size(fontdesc, PAGEBAR_DEFAULT_CPIFONTHEIGHT);
00719     pango_layout_set_font_description(pagebar->pangolayout, fontdesc);
00720     pango_font_description_free(fontdesc);
00721     pango_layout_get_pixel_size(pagebar->pangolayout,&pagebar->barFontWidth,&pagebar->barFontHeight);
00722 
00723     pagebar->cpiFontWidth = pagebar->barFontWidth;
00724 
00725     PRINT_DEBUG(("text format %dx%d\n",pagebar->barFontWidth,pagebar->barFontHeight));
00726 
00727     //gtk_widget_show(pagebar->drawingArea);
00728 
00729     LEAVE(0);
00730 
00731     return GTK_WIDGET(pagebar);
00732 }
00733 
00734 
00735 static int drawMarkers(GtkPagebar* pagebar, int width, int y, int bitmap, int* markers, int count, int maxValue) {
00736     int i;
00737     int j;
00738     int x;
00739 
00740     ENTER(1);
00741 
00742     for (i=0; i<count && markers[i]!=-1; i++) {
00743         /* Convert bookmark to pagenumber */
00744         j=markers[i]*pagebar->pagecount/maxValue;
00745         if (j>pagebar->currentPage) {
00746             x = pagebar->barXPos+(pagebar->barWidth+pagebar->cpiWidth)/2;
00747             /* & 0xFFFFFFFC: Align to markers */
00748             if (j>=pagebar->pagecount) 
00749                 x += (((pagebar->pagecount-pagebar->currentPage-1)*width/(pagebar->pagecount-2))&0xFFFFFFFC)+pagebar->pageFieldWidth/2;
00750             else
00751                 x += (((pagebar->pagecount-pagebar->currentPage-1)*width/(pagebar->pagecount-2))*(j-pagebar->currentPage-1)/(pagebar->pagecount-1-pagebar->currentPage-1))&0xFFFFFFFC;
00752             /* Bitmaps aren't transparant so we can't draw over the CPI. In that case we move the marker a little bit to the right */
00753             if (x-(pagebar->barXPos+(pagebar->barWidth+pagebar->cpiWidth)/2)<2)
00754                 x+=3;
00755 
00756 #ifdef USE_BITMAPS
00757             gdk_draw_pixbuf(pagebar->pixmap, NULL, pagebar->bitmaps[bitmap], 0,0,x-2,y,-1,-1,GDK_RGB_DITHER_NONE,0,0);
00758 #else
00759             gdk_draw_line(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, x, y, x, y+6);
00760 #endif
00761         }
00762         else if (j<pagebar->currentPage) {
00763             x = pagebar->barXPos+(pagebar->barWidth-pagebar->cpiWidth)/2-2;
00764             if (j==1)
00765                 x -= ((width*(pagebar->currentPage-2)/(pagebar->pagecount-2))&0xFFFFFFFC) + pagebar->pageFieldWidth/2;
00766             else
00767                 x -= (width*(pagebar->currentPage-2)/(pagebar->pagecount-2)*(pagebar->currentPage-j-1)/(pagebar->currentPage-3))&0xFFFFFFFC;
00768 
00769 #ifdef USE_BITMAPS
00770             gdk_draw_pixbuf(pagebar->pixmap, NULL, pagebar->bitmaps[bitmap], 0,0,x-2,y,-1,-1,GDK_RGB_DITHER_NONE,0,0);
00771 #else
00772             gdk_draw_line(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, x, y, x, y+6);
00773 #endif
00774         }
00775     }
00776 
00777     LEAVE(1);
00778 
00779     return 0;
00780 }
00781 
00782 //
00783 // draws a page bar with the specified pagecount  
00784 // steps:
00785 // 1. adjust position and size
00786 // 2. reset background
00787 // 3. draw cpi (current page indicator)
00788 // 4. draw left and right 
00789 // 5. draw bookmarks and notes
00790 //
00791 int gtk_pagebar_draw(GtkPagebar* pagebar)
00792 {
00793     int ret = 0;
00794 
00795     ENTER(1);
00796     
00797 
00798     if (!IS_GTK_PAGEBAR(pagebar)) {
00799         RETURN(-1);
00800     }
00801     
00802   
00803     if (!pagebar->pixmap) 
00804         RETURN(-1);
00805 
00806     /* If the user moved the window, we first have to do that */
00807     if (pagebar->lastDrawAreaXPos!=pagebar->drawAreaXPos || pagebar->lastDrawAreaYPos!=pagebar->drawAreaYPos) {
00808         pagebar->lastDrawAreaXPos=pagebar->drawAreaXPos;
00809         pagebar->lastDrawAreaYPos=pagebar->drawAreaYPos;
00810         gtk_window_move(GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(pagebar))), pagebar->drawAreaXPos, pagebar->drawAreaYPos);
00811     }
00812 
00813     /* If the user resized the window, we first have to do that */
00814     if (pagebar->lastDrawAreaWidth!=pagebar->drawAreaWidth || pagebar->lastDrawAreaHeight!=pagebar->drawAreaHeight) {
00815         pagebar->lastDrawAreaWidth=pagebar->drawAreaWidth;
00816         pagebar->lastDrawAreaHeight=pagebar->drawAreaHeight;
00817         gtk_widget_set_size_request(GTK_WIDGET(gtk_widget_get_toplevel(GTK_WIDGET(pagebar))), pagebar->drawAreaWidth, pagebar->drawAreaHeight);
00818     }
00819 
00820     // clear the area
00821     gdk_draw_rectangle (pagebar->pixmap,
00822         GTK_WIDGET(pagebar->drawingArea)->style->white_gc, 
00823         TRUE, 
00824         pagebar->barXPos, 
00825         pagebar->barYPos, 
00826         pagebar->barWidth, 
00827         pagebar->barHeight);
00828 
00829     if (!pagebar->show)
00830         RETURN(-1);
00831 
00832     // calculate
00833     pagebar_calculate(pagebar);
00834 
00835     // draw cpi 
00836     pagebar_draw_cpi(pagebar);
00837 
00838     if (pagebar->pagecount==1)
00839         RETURN(0);
00840 
00841     // draw the others
00842     pagebar_draw_left(pagebar);
00843     pagebar_draw_right(pagebar);
00844 end:
00845     // make things appear on the screen 
00846     gtk_widget_queue_draw(GTK_WIDGET(pagebar->drawingArea));
00847     PRINT_TRACE(("gtk_widget_queue_draw_area called \n"));
00848 
00849     LEAVE(1);
00850 
00851     return ret; 
00852 }
00853 
00854 //
00855 // #define SCROLLBOX_LEFT  0
00856 // #define SCROLLBOX_RIGHT 1
00857 // #define SCROLLBOX_NONE  -1
00858 //
00859 gboolean pagebar_scrollbox_needLeft(GtkPagebar *pagebar)
00860 {
00861     if (pagebar->currentPage > pagebar->maxItems + 1) 
00862         return TRUE;
00863     return FALSE;
00864 }
00865 
00866 gboolean pagebar_scrollbox_needRight(GtkPagebar *pagebar)
00867 {
00868     if (pagebar->pagecount - pagebar->currentPage > pagebar->maxItems) 
00869         return TRUE;
00870     return FALSE;
00871 }
00872 
00873 int  pagebar_scrollbox_hitTest(GtkPagebar *pagebar, int x, int y)
00874 {
00875     int width = pagebar->maxItems *pagebar->pageFieldWidth;
00876 
00877     // position and scroll box enabled
00878     if (x < pagebar->cpiXPos - width &&
00879         x > pagebar->cpiXPos - width - pagebar->scrollButtonWidth &&
00880         pagebar_scrollbox_needLeft(pagebar))
00881     {
00882         return SCROLLBOX_LEFT;
00883     }
00884 
00885     if (x > pagebar->cpiXPos + pagebar->cpiWidth + width &&
00886         x < pagebar->cpiXPos + pagebar->cpiWidth + width + pagebar->scrollButtonWidth && 
00887         pagebar_scrollbox_needRight(pagebar))
00888     {
00889         return SCROLLBOX_RIGHT;
00890     }
00891 
00892     return SCROLLBOX_NONE;
00893 }
00894 
00895 
00896 // 
00897 // calculate the pagebar parameters including cpi, maxItems, etc.
00898 // according to the orientation
00899 //
00900 void pagebar_calculate(GtkPagebar *pagebar)
00901 {
00902     if (PAGEBAR_ORIENTATION_X == pagebar->orientation)
00903     {
00904         pagebar->cpiXPos  = pagebar->barXPos + (pagebar->barWidth-pagebar->cpiWidth)/2;
00905         pagebar->cpiYPos  = pagebar->barYPos - (pagebar->cpiHeight -pagebar->barHeight)/2;
00906         pagebar->maxItems = ((pagebar->barWidth-pagebar->cpiWidth)/2-pagebar->scrollButtonWidth)/pagebar->pageFieldWidth; 
00907     }
00908     else if (PAGEBAR_ORIENTATION_Y == pagebar->orientation)
00909     {
00910         // make sure bar height is larger than cpi height
00911         pagebar->cpiXPos  = (pagebar->barWidth-pagebar->cpiWidth)/2;
00912         pagebar->cpiYPos  = pagebar->barYPos + (pagebar->barHeight - pagebar->cpiHeight)/2;        
00913         pagebar->maxItems = ((pagebar->barHeight - pagebar->cpiHeight)/2-pagebar->scrollButtonHeight)/pagebar->pageFieldHeight; 
00914     }
00915 }
00916 
00917 //
00918 // draw cpi
00919 //
00920 void pagebar_draw_cpi(GtkPagebar *pagebar)
00921 {
00922     // If there are less pages than we can show, overview mode is not used 
00923     // mode can only be changed when user click cpi
00924     int canZoom  = 1;
00925     int x = 0, y = 0, w = 0, h = 0;
00926     char pageStr[16] = {0};
00927     if (pagebar->pagecount<= pagebar->maxItems *2+1) {
00928         pagebar->zoomMode = 1;
00929         canZoom = 0;
00930     }
00931 
00932     /* Once we have to redraw the pagebar, we don't need the pageEntry anymore */
00933     gtk_widget_hide(pagebar->pageEntry);
00934 
00935     /* Draw Current Page Indicator, load differnet indicator according orientation*/
00936 #ifdef USE_BITMAPS
00937     gdk_draw_pixbuf(pagebar->pixmap, NULL, pagebar->bitmaps[bitmap_CPI], 0, 0,
00938         pagebar->cpiXPos, pagebar->cpiYPos, -1, -1, GDK_RGB_DITHER_NONE, 0, 0);
00939 #else
00940     gdk_draw_rectangle(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, FALSE, 
00941         pagebar->cpiXPos, pagebar->cpiYPos, pagebar->cpiWidth, h);
00942 #endif
00943 
00944     /* Draw pageoffset */
00945     if (pagebar->currentPageOffset <= PAGEBAR_DEFAULT_CURRENTPAGEOFFSET)
00946     {
00947         int i = pagebar->currentPageOffset*pagebar->pageOffsetWidth/PAGEBAR_DEFAULT_CURRENTPAGEOFFSET;
00948         x = pagebar->cpiXPos;
00949         y = pagebar->cpiYPos;
00950         gdk_draw_rectangle(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, TRUE, 
00951             x+pagebar->pageOffsetXOffset, 
00952             y+pagebar->pageOffsetYOffset, 
00953             i, 
00954             pagebar->pageOffsetHeight);
00955         gdk_draw_rectangle(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->white_gc, TRUE, 
00956             x+pagebar->pageOffsetXOffset+i, 
00957             y+pagebar->pageOffsetYOffset, 
00958             pagebar->pageOffsetWidth-i, 
00959             pagebar->pageOffsetHeight);
00960     }
00961 
00962     /* Draw pagenumber */
00963     sprintf(pageStr, "%d", pagebar->currentPage);
00964     pango_layout_set_text(pagebar->pangolayout, pageStr, -1);
00965     pango_layout_get_pixel_size(pagebar->pangolayout,&w,&h);
00966     x = pagebar->barXPos + (pagebar->barWidth-w)/2;
00967     y = pagebar->barYPos + (pagebar->barHeight-h)/2;
00968     gdk_draw_layout(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, x, y, pagebar->pangolayout);
00969 }
00970 
00971 //
00972 // draw left part of pagebar
00973 // display all if possible (independant of zoomMode)
00974 // display in detail + scroll box according to zoomMode
00975 //
00976 void pagebar_draw_left(GtkPagebar *pagebar)
00977 {
00978     int w = 0, x = 0, y = 0;
00979     int i = 0, j = 0;
00980     char pageStr[16] = {0};
00981     int left = 1;
00982 
00983     // init 
00984     x = pagebar->cpiXPos;
00985     y = pagebar->cpiYPos + (pagebar->cpiHeight - pagebar->pageFieldHeight)/2;
00986 
00987     // check can we display all. 
00988     if (pagebar->pagecount > 2 * pagebar->maxItems + 1 && 0 == pagebar->zoomMode)
00989     {
00990         // can not display all
00991         w = (pagebar->barWidth-pagebar->cpiWidth)/2-pagebar->pageFieldWidth;
00992         y = pagebar->barYPos+(pagebar->barHeight-pagebar->pageFieldHeight)/2;
00993         x = pagebar->barXPos+(pagebar->barWidth-pagebar->cpiWidth)/2-2;
00994         if (pagebar->currentPage!=1) 
00995         {
00996             for (i=0; i<w*(pagebar->currentPage-2)/(pagebar->pagecount-2)/4; i++) 
00997             {
00998                 gdk_draw_rectangle(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, FALSE, x, y, 1, pagebar->pageFieldHeight);
00999                 x-=4;
01000             }
01001             x=x-pagebar->pageFieldWidth+1;
01002 #ifdef USE_BITMAPS
01003             gdk_draw_pixbuf(pagebar->pixmap, NULL, pagebar->bitmaps[bitmap_PageField], 0,0,x,y,-1,-1,GDK_RGB_DITHER_NONE,0,0);
01004 #else
01005             gdk_draw_rectangle(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, FALSE, x, y, pagebar->pageFieldWidth, pagebar->pageFieldHeight);
01006 #endif
01007             sprintf(pageStr, "1");
01008             pango_layout_set_text(pagebar->pangolayout, pageStr, -1);
01009             pango_layout_get_pixel_size(pagebar->pangolayout,&i,&j);
01010             gdk_draw_layout(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, x+(pagebar->pageFieldWidth-i)/2, y+(pagebar->pageFieldHeight-j)/2, pagebar->pangolayout);
01011         }
01012         /* Draw bookmarks */
01013         if (pagebar->bookmarkMaxValue)
01014             drawMarkers(pagebar, w, y-6, bitmap_Bookmark, pagebar->bookmarks, pagebar->bookmarkCount, pagebar->bookmarkMaxValue);
01015         if (pagebar->notesMaxValue)
01016             drawMarkers(pagebar, w, y+pagebar->pageFieldHeight, bitmap_Note, pagebar->notes, pagebar->noteCount, pagebar->notesMaxValue);
01017     }
01018     else
01019     {
01020         // display in detail
01021         for(left; left < pagebar->currentPage && left <= pagebar->maxItems; ++left)
01022         {
01023             x -= pagebar->pageFieldWidth;  
01024             gdk_draw_rectangle(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->white_gc, FALSE, x, y, 1, pagebar->pageFieldHeight);
01025 
01026 #ifdef USE_BITMAPS
01027             gdk_draw_pixbuf(pagebar->pixmap, NULL, pagebar->bitmaps[bitmap_PageField], 0,0,x,y,-1,-1,GDK_RGB_DITHER_NONE,0,0);
01028 #else
01029             gdk_draw_rectangle(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, FALSE, x, y, pagebar->pageFieldWidth, pagebar->pageFieldHeight);
01030 #endif
01031 
01032             sprintf(pageStr, "%d", pagebar->currentPage - left );
01033             pango_layout_set_text(pagebar->pangolayout, pageStr, -1);
01034             pango_layout_get_pixel_size(pagebar->pangolayout,&i,&j);
01035             gdk_draw_layout(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, x+(pagebar->pageFieldWidth-i)/2, y+(pagebar->pageFieldHeight-j)/2, pagebar->pangolayout);
01036         }
01037         /* need scroll bar or not */
01038         /* something confused. left one indicates right, right one indicates left. understand? */
01039         if (pagebar_scrollbox_needLeft(pagebar))
01040         {
01041             x = pagebar->cpiXPos - pagebar->maxItems * pagebar->pageFieldWidth;
01042             x-=pagebar->scrollButtonWidth;
01043 #ifdef USE_BITMAPS
01044             gdk_draw_pixbuf(pagebar->pixmap, NULL, pagebar->bitmaps[bitmap_ScrollLeft], 0,0,x,y,-1,-1,GDK_RGB_DITHER_NONE,0,0);
01045 #else
01046             gdk_draw_rectangle(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, TRUE, x, y, pagebar->scrollButtonWidth, pagebar->pageFieldHeight);
01047 #endif
01048         }
01049         else
01050         {
01051             // load a gray one. 
01052         }
01053         /* draw bookmarkers */
01054         i = pagebar->maxItems;
01055         for (j=0; pagebar->bookmarkMaxValue > 0 && j<pagebar->bookmarkCount && pagebar->bookmarks[j]!=-1; j++)
01056         {
01057             int page;
01058             page=pagebar->bookmarks[j]*pagebar->pagecount/pagebar->bookmarkMaxValue;
01059             if (page<pagebar->currentPage && page>=pagebar->currentPage-i)
01060                 x=pagebar->barXPos+(pagebar->barWidth-pagebar->cpiWidth)/2-(pagebar->currentPage-page)*pagebar->pageFieldWidth+pagebar->pageFieldWidth/2;
01061             else if (page>pagebar->currentPage && page<=pagebar->currentPage+i)
01062                 x=pagebar->barXPos+(pagebar->barWidth+pagebar->cpiWidth)/2+(page-pagebar->currentPage-1)*pagebar->pageFieldWidth+pagebar->pageFieldWidth/2;
01063             else
01064                 continue;
01065 
01066 #ifdef USE_BITMAPS
01067             gdk_draw_pixbuf(pagebar->pixmap, NULL, pagebar->bitmaps[bitmap_Bookmark], 0,0,x,y-6,-1,-1,GDK_RGB_DITHER_NONE,0,0);
01068 #else
01069             gdk_draw_line(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, x, y-6, x, y);
01070 #endif        
01071         }    
01072         for (j=0; pagebar->notesMaxValue > 0 && j<pagebar->noteCount && pagebar->notes[j]!=-1; j++)
01073         {
01074             int page;
01075             page=pagebar->notes[j]*pagebar->pagecount/pagebar->notesMaxValue;
01076             if (page<pagebar->currentPage && page>=pagebar->currentPage-i)
01077                 x=pagebar->barXPos+(pagebar->barWidth-pagebar->cpiWidth)/2-(pagebar->currentPage-page)*pagebar->pageFieldWidth+pagebar->pageFieldWidth/2;
01078             else if (page>pagebar->currentPage && page<=pagebar->currentPage+i)
01079                 x=pagebar->barXPos+(pagebar->barWidth+pagebar->cpiWidth)/2+(page-pagebar->currentPage-1)*pagebar->pageFieldWidth+pagebar->pageFieldWidth/2;
01080             else
01081                 continue;
01082 
01083 #ifdef USE_BITMAPS
01084             gdk_draw_pixbuf(pagebar->pixmap, NULL, pagebar->bitmaps[bitmap_Note], 0,0,x,y+pagebar->pageFieldHeight,-1,-1,GDK_RGB_DITHER_NONE,0,0);
01085 #else
01086             gdk_draw_line(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, x, y+pagebar->pageFieldHeight, x, y+pagebar->pageFieldHeight+6);
01087 #endif        
01088         }  
01089     }
01090 }
01091 
01092 void pagebar_draw_right(GtkPagebar *pagebar)
01093 {
01094     int w = 0, x = 0, y = 0;
01095     int i = 0, j = 0;
01096     char pageStr[16] = {0};
01097     int right = 1;
01098 
01099     // init 
01100     x = pagebar->cpiXPos + pagebar->cpiWidth;
01101     y = pagebar->cpiYPos + (pagebar->cpiHeight - pagebar->pageFieldHeight)/2;
01102 
01103     // check can we display all 
01104     if (pagebar->pagecount > 2 * pagebar->maxItems + 1  && 0 == pagebar->zoomMode)
01105     {
01106         // can not display all
01107         w = (pagebar->barWidth-pagebar->cpiWidth)/2-pagebar->pageFieldWidth;
01108         x = pagebar->barXPos+(pagebar->barWidth+pagebar->cpiWidth)/2;
01109         y = pagebar->barYPos+(pagebar->barHeight-pagebar->pageFieldHeight)/2;
01110         if (pagebar->currentPage!=pagebar->pagecount) 
01111         {
01112             for (i=0; i<w*(pagebar->pagecount-pagebar->currentPage-1)/(pagebar->pagecount-2)/4; i++) 
01113             {
01114                 gdk_draw_rectangle(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, FALSE, x, y, 1, pagebar->pageFieldHeight);
01115                 x+=4;
01116             }
01117 #ifdef USE_BITMAPS
01118             gdk_draw_pixbuf(pagebar->pixmap, NULL, pagebar->bitmaps[bitmap_PageField], 0,0,x,y,-1,-1,GDK_RGB_DITHER_NONE,0,0);
01119 #else
01120             gdk_draw_rectangle(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, FALSE, x, y, pagebar->pageFieldWidth, pagebar->pageFieldHeight);
01121 #endif      
01122             sprintf(pageStr, "%d", pagebar->pagecount);
01123             pango_layout_set_text(pagebar->pangolayout, pageStr, -1);
01124             pango_layout_get_pixel_size(pagebar->pangolayout,&i,&j);
01125             gdk_draw_layout(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, x+(pagebar->pageFieldWidth-i)/2, y+(pagebar->pageFieldHeight-j)/2, pagebar->pangolayout);
01126         }
01127     }
01128     else
01129     {
01130         // display in detail
01131         for(right; right <= pagebar->pagecount - pagebar->currentPage && right <= pagebar->maxItems; ++right)
01132         {
01133             gdk_draw_rectangle(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->white_gc, FALSE, x, y, 1, pagebar->pageFieldHeight);
01134 
01135 #ifdef USE_BITMAPS
01136             gdk_draw_pixbuf(pagebar->pixmap, NULL, pagebar->bitmaps[bitmap_PageField], 0,0,x,y,-1,-1,GDK_RGB_DITHER_NONE,0,0);
01137 #else
01138             gdk_draw_rectangle(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, FALSE, x, y, pagebar->pageFieldWidth, pagebar->pageFieldHeight);
01139 #endif
01140 
01141             sprintf(pageStr, "%d", pagebar->currentPage + right );
01142             pango_layout_set_text(pagebar->pangolayout, pageStr, -1);
01143             pango_layout_get_pixel_size(pagebar->pangolayout,&i,&j);
01144             gdk_draw_layout(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, x+(pagebar->pageFieldWidth-i)/2, y+(pagebar->pageFieldHeight-j)/2, pagebar->pangolayout);
01145             x += pagebar->pageFieldWidth;
01146         }
01147 
01148         /* draw the right scroll box if needed*/
01149         if (pagebar_scrollbox_needRight(pagebar))
01150         {
01151             x = pagebar->cpiXPos + pagebar->maxItems * pagebar->pageFieldWidth; 
01152             x += pagebar->cpiWidth;
01153 #ifdef USE_BITMAPS
01154             gdk_draw_pixbuf(pagebar->pixmap, NULL, pagebar->bitmaps[bitmap_ScrollRight], 0,0,x,y,-1,-1,GDK_RGB_DITHER_NONE,0,0);
01155 #else
01156             gdk_draw_rectangle(pagebar->pixmap, GTK_WIDGET(pagebar->drawingArea)->style->black_gc, TRUE, x, y, pagebar->scrollButtonWidth, pagebar->pageFieldHeight);
01157 #endif
01158 
01159         }
01160         else
01161         {
01162             // Load a gray one. 
01163         }
01164     }
01165 }
01166 
01167 // only when idle, we can sure all invalid region has been update
01168 gboolean on_idle(gpointer data)
01169 {
01170     GtkPagebar *pagebar = (GtkPagebar *)data;
01171     gdk_threads_enter();
01172     gdk_flush();
01173     gdk_threads_leave();
01174     
01175     erClientChannel_t channel;
01176     switch (pagebar->currentApp) 
01177     {
01178     case ER_APABI_VIEWER_UA_ID:
01179         channel = apabiChannel;
01180         break;
01181     case ER_PDF_VIEWER_UA_ID:
01182         channel = pdfChannel;
01183         break;
01184     case ER_XHTML_VIEWER_UA_ID:
01185         channel = xhtmlChannel;
01186         break;
01187     case ER_SCRIBBLE_UA_ID:
01188         channel = scribbleChannel;
01189         break;
01190     case ER_CONTENT_LISTER_UA_ID:
01191         channel = contentListerChannel;
01192         break;
01193     case ER_SETUP_UA_ID:
01194         channel = setupChannel;
01195         break;
01196     case ER_CONNECT_UA_ID:
01197         channel = connectChannel;
01198         break;
01199     case ER_EBA_VIEWER_UA_ID:
01200         channel = ebaChannel;
01201         break;
01202     case ER_ARINC_VIEWER_UA_ID:
01203         channel = arincViewerChannel;
01204         break;
01205     case ER_ARINC_MENU_UA_ID:
01206         channel = arincMenuChannel;
01207         break;
01208     default:
01209         return FALSE;
01210     }    
01211     // printf("\nPagebar reports synchronise message to %d\n", pagebar->currentApp);
01212     pbReportSynchronise(channel, pagebar->currentApp);
01213     return FALSE;
01214 }
01215 
01216 void pagebar_reportSync(GtkPagebar *pagebar)
01217 {
01218     gtk_idle_add(on_idle, (gpointer) pagebar);
01219 }
01220