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opt / alt / libicu / usr / share / doc / alt-libicu-devel / samples / layout /

?? ..
?? FontMap.GDI(426 B)
?? FontMap.Gnome(392 B)
?? FontMap.cpp(7.34 KB)
?? FontMap.h(1.84 KB)
?? FontTableCache.cpp(2.37 KB)
?? FontTableCache.h(1.06 KB)
?? GDIFontInstance.cpp(9.6 KB)
?? GDIFontInstance.h(3.6 KB)
?? GDIFontMap.cpp(1.32 KB)
?? GDIFontMap.h(1.23 KB)
?? GDIGUISupport.cpp(862 B)
?? GDIGUISupport.h(949 B)
?? GUISupport.h(890 B)
?? GnomeFontInstance.cpp(5.43 KB)
?? GnomeFontInstance.h(3.79 KB)
?? GnomeFontMap.cpp(1.39 KB)
?? GnomeFontMap.h(1.21 KB)
?? GnomeGUISupport.cpp(1.05 KB)
?? GnomeGUISupport.h(961 B)
?? LayoutSample.rc(3.37 KB)
?? Makefile(2.92 KB)
?? Makefile.in(2.92 KB)
?? RenderingSurface.h(1.09 KB)
?? Sample.txt(1.66 KB)
?? ScriptCompositeFontInstance.cpp(3.2 KB)
?? ScriptCompositeFontInstance.h(6.15 KB)
?? Surface.cpp(892 B)
?? Surface.h(519 B)
?? UnicodeReader.cpp(4.1 KB)
?? UnicodeReader.h(999 B)
?? arraymem.h(646 B)
?? cgnomelayout.c(8.45 KB)
?? clayout.c(9.82 KB)
?? cmaps.cpp(5.3 KB)
?? cmaps.h(2.06 KB)
?? gdiglue.cpp(1.67 KB)
?? gdiglue.h(983 B)
?? gnomeglue.cpp(1.64 KB)
?? gnomeglue.h(986 B)
?? gnomelayout.cpp(8.5 KB)
?? gsupport.h(370 B)
?? layout.cpp(9.8 KB)
?? layout.sln(1.17 KB)
?? layout.vcxproj(13.15 KB)
?? layout.vcxproj.filters(3.06 KB)
?? paragraph.cpp(7.58 KB)
?? paragraph.h(2.18 KB)
?? pflow.c(9.27 KB)
?? pflow.h(940 B)
?? readme.html(7.32 KB)
?? resource.h(907 B)
?? rsurface.cpp(712 B)
?? rsurface.h(528 B)
?? sfnt.h(4.9 KB)
?? ucreader.cpp(509 B)
?? ucreader.h(422 B)

Editing: gnomelayout.cpp

/*
 *******************************************************************************
 *
 *   © 2016 and later: Unicode, Inc. and others.
 *   License & terms of use: http://www.unicode.org/copyright.html#License
 *
 *******************************************************************************
 ****************************************************************************** *
 *
 *   Copyright (C) 1999-2007, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 *
 ****************************************************************************** *
 *   file name:  gnomelayout.cpp
 *
 *   created on: 09/04/2001
 *   created by: Eric R. Mader
 */

#include <gnome.h>
#include <ft2build.h>
#include FT_FREETYPE_H

#include "unicode/ustring.h"
#include "unicode/uscript.h"

#include "GnomeFontInstance.h"

#include "paragraph.h"

#include "GnomeGUISupport.h"
#include "GnomeFontMap.h"
#include "UnicodeReader.h"
#include "ScriptCompositeFontInstance.h"

#define ARRAY_LENGTH(array) (sizeof array / sizeof array[0])

struct Context
{
    long width;
    long height;
    Paragraph *paragraph;
};

static FT_Library engine;
static GnomeGUISupport *guiSupport;
static GnomeFontMap *fontMap;
static ScriptCompositeFontInstance *font;

static GSList *appList = NULL;

GtkWidget *newSample(const gchar *fileName);
void       closeSample(GtkWidget *sample);

void showabout(GtkWidget */*widget*/, gpointer /*data*/)
{
    GtkWidget *aboutBox;
    const gchar *documentedBy[] = {NULL};
    const gchar *writtenBy[] = {
        "Eric Mader",
        NULL
    };

aboutBox = gnome_about_new("Gnome Layout Sample",
                               "0.1",
                               "Copyright (C) 1998-2006 By International Business Machines Corporation and others. All Rights Reserved.",
                               "A simple demo of the ICU LayoutEngine.",
                               writtenBy,
                               documentedBy,
                               "",
                               NULL);

gtk_widget_show(aboutBox);
}

void notimpl(GtkObject */*object*/, gpointer /*data*/)
{
    gnome_ok_dialog("Not implemented...");
}

gchar *prettyTitle(const gchar *path)
{
  const gchar *name  = g_basename(path);
  gchar *title = g_strconcat("Gnome Layout Sample - ", name, NULL);

return title;
}

void openOK(GtkObject */*object*/, gpointer data)
{
  GtkFileSelection *fileselection = GTK_FILE_SELECTION(data);
  GtkWidget *app = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(fileselection), "app"));
  Context *context = (Context *) gtk_object_get_data(GTK_OBJECT(app), "context");
  gchar *fileName  = g_strdup(gtk_file_selection_get_filename(fileselection));
  Paragraph *newPara;

gtk_widget_destroy(GTK_WIDGET(fileselection));

newPara = Paragraph::paragraphFactory(fileName, font, guiSupport);

if (newPara != NULL) {
    gchar *title = prettyTitle(fileName);
    GtkWidget *area = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(app), "area"));

if (context->paragraph != NULL) {
      delete context->paragraph;
    }

context->paragraph = newPara;
    gtk_window_set_title(GTK_WINDOW(app), title);

gtk_widget_hide(area);
    context->paragraph->breakLines(context->width, context->height);
    gtk_widget_show_all(area);

g_free(title);
  }

g_free(fileName);
}

void openfile(GtkObject */*object*/, gpointer data)
{
  GtkWidget *app = GTK_WIDGET(data);
  GtkWidget *fileselection;
  GtkWidget *okButton;
  GtkWidget *cancelButton;

fileselection =
    gtk_file_selection_new("Open File");

gtk_object_set_data(GTK_OBJECT(fileselection), "app", app);

okButton =
    GTK_FILE_SELECTION(fileselection)->ok_button;

cancelButton =
    GTK_FILE_SELECTION(fileselection)->cancel_button;

gtk_signal_connect(GTK_OBJECT(fileselection), "destroy",
		     GTK_SIGNAL_FUNC(gtk_main_quit), NULL);

gtk_signal_connect(GTK_OBJECT(okButton), "clicked",
		     GTK_SIGNAL_FUNC(openOK), fileselection);

gtk_signal_connect_object(GTK_OBJECT(cancelButton), "clicked",
		     GTK_SIGNAL_FUNC(gtk_widget_destroy), GTK_OBJECT(fileselection));

gtk_window_set_modal(GTK_WINDOW(fileselection), TRUE);
  gtk_widget_show(fileselection);
  gtk_main();
}

void newapp(GtkObject */*object*/, gpointer /*data*/)
{
  GtkWidget *app = newSample("Sample.txt");

gtk_widget_show_all(app);
}

void closeapp(GtkWidget */*widget*/, gpointer data)
{
  GtkWidget *app = GTK_WIDGET(data);

closeSample(app);
}

void shutdown(GtkObject */*object*/, gpointer /*data*/)
{
    gtk_main_quit();
}

GnomeUIInfo fileMenu[] =
{
  GNOMEUIINFO_MENU_NEW_ITEM((gchar *) "_New Sample",
			    (gchar *) "Create a new Gnome Layout Sample",
			    newapp, NULL),

GNOMEUIINFO_MENU_OPEN_ITEM(openfile, NULL),
  GNOMEUIINFO_SEPARATOR,
  GNOMEUIINFO_MENU_CLOSE_ITEM(closeapp, NULL),
  GNOMEUIINFO_MENU_EXIT_ITEM(shutdown, NULL),
  GNOMEUIINFO_END
};

GnomeUIInfo helpMenu[] =
{
    // GNOMEUIINFO_HELP("gnomelayout"),
    GNOMEUIINFO_MENU_ABOUT_ITEM(showabout, NULL),
    GNOMEUIINFO_END
};

GnomeUIInfo mainMenu[] =
{
    GNOMEUIINFO_SUBTREE(N_((gchar *) "File"), fileMenu),
    GNOMEUIINFO_SUBTREE(N_((gchar *) "Help"), helpMenu),
    GNOMEUIINFO_END
};

gint eventDelete(GtkWidget *widget, GdkEvent */*event*/, gpointer /*data*/)
{
  closeSample(widget);

// indicate that closeapp  already destroyed the window 
  return TRUE;
}

gint eventConfigure(GtkWidget */*widget*/, GdkEventConfigure *event, Context *context)
{
  if (context->paragraph != NULL) {
    context->width  = event->width;
    context->height = event->height;

if (context->width > 0 && context->height > 0) {
        context->paragraph->breakLines(context->width, context->height);
    }
  }

return TRUE;
}

gint eventExpose(GtkWidget *widget, GdkEvent */*event*/, Context *context)
{
  if (context->paragraph != NULL) {
    gint maxLines = context->paragraph->getLineCount() - 1;
    gint firstLine = 0, lastLine = context->height / context->paragraph->getLineHeight();
    GnomeSurface surface(widget);

context->paragraph->draw(&surface, firstLine, (maxLines < lastLine)? maxLines : lastLine);
  }

return TRUE;
}

GtkWidget *newSample(const gchar *fileName)
{
  Context   *context = new Context();

context->width  = 600;
  context->height = 400;
  context->paragraph = Paragraph::paragraphFactory(fileName, font, guiSupport);

gchar *title = prettyTitle(fileName);
  GtkWidget *app = gnome_app_new("gnomeLayout", title);

gtk_object_set_data(GTK_OBJECT(app), "context", context);

gtk_window_set_default_size(GTK_WINDOW(app), 600 - 24, 400);

gnome_app_create_menus_with_data(GNOME_APP(app), mainMenu, app);

gtk_signal_connect(GTK_OBJECT(app), "delete_event",
		     GTK_SIGNAL_FUNC(eventDelete), NULL);

GtkWidget *area = gtk_drawing_area_new();
  gtk_object_set_data(GTK_OBJECT(app), "area", area);

GtkStyle *style = gtk_style_copy(gtk_widget_get_style(area));

for (int i = 0; i < 5; i += 1) {
    style->fg[i] = style->white;
  }
    
  gtk_widget_set_style(area, style);

gnome_app_set_contents(GNOME_APP(app), area);

gtk_signal_connect(GTK_OBJECT(area),
		     "expose_event",
		     GTK_SIGNAL_FUNC(eventExpose),
		     context);

gtk_signal_connect(GTK_OBJECT(area),
		     "configure_event",
		     GTK_SIGNAL_FUNC(eventConfigure),
		     context);

appList = g_slist_prepend(appList, app);

g_free(title);

return app;
}

void closeSample(GtkWidget *app)
{
  Context *context = (Context *) gtk_object_get_data(GTK_OBJECT(app), "context");

if (context->paragraph != NULL) {
    delete context->paragraph;
  }

delete context;

appList = g_slist_remove(appList, app);

gtk_widget_destroy(app);

if (appList == NULL) {
    gtk_main_quit();
  }
}

int main (int argc, char *argv[])
{
    LEErrorCode   fontStatus = LE_NO_ERROR;
    poptContext   ptctx;
    GtkWidget    *app;

FT_Init_FreeType(&engine);

gnome_init_with_popt_table("gnomelayout", "0.1", argc, argv, NULL, 0, &ptctx);

guiSupport = new GnomeGUISupport();
    fontMap    = new GnomeFontMap(engine, "FontMap.Gnome", 24, guiSupport, fontStatus);
    font       = new ScriptCompositeFontInstance(fontMap);

if (LE_FAILURE(fontStatus)) {
        FT_Done_FreeType(engine);
        return 1;
    }

const char  *defaultArgs[] = {"Sample.txt", NULL};
    const char **args = poptGetArgs(ptctx);
    
    if (args == NULL) {
        args = defaultArgs;
    }

for (int i = 0; args[i] != NULL; i += 1) {
       app = newSample(args[i]);
           
       gtk_widget_show_all(app);
    }
    
    poptFreeContext(ptctx);
    
    gtk_main();

delete font;
    delete guiSupport;

FT_Done_FreeType(engine);

exit(0);
}

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Editing: gnomelayout.cpp

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