]> git.saurik.com Git - apple/icu.git/blobdiff - icuSources/samples/layout/cgnomelayout.c
ICU-400.37.tar.gz
[apple/icu.git] / icuSources / samples / layout / cgnomelayout.c
diff --git a/icuSources/samples/layout/cgnomelayout.c b/icuSources/samples/layout/cgnomelayout.c
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index 0000000..f95b7a5
--- /dev/null
@@ -0,0 +1,342 @@
+
+/*
+ ****************************************************************************** *
+ *
+ *   Copyright (C) 1999-2007, International Business Machines
+ *   Corporation and others.  All Rights Reserved.
+ *
+ ****************************************************************************** *
+ */
+
+#include <gnome.h>
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+#include "pflow.h"
+
+#include "gnomeglue.h"
+
+#include "arraymem.h"
+
+struct Context
+{
+    long width;
+    long height;
+    pf_flow *paragraph;
+};
+
+typedef struct Context Context;
+
+static FT_Library engine;
+static gs_guiSupport *guiSupport;
+static fm_fontMap *fontMap;
+static le_font *font;
+
+static GSList *appList = NULL;
+
+GtkWidget *newSample(const gchar *fileName);
+void       closeSample(GtkWidget *sample);
+
+static 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);
+}
+
+#if 0
+static void notimpl(GtkObject *object, gpointer data)
+{
+    gnome_ok_dialog("Not implemented...");
+}
+#endif
+
+static gchar *prettyTitle(const gchar *path)
+{
+  const gchar *name  = g_basename(path);
+  gchar *title = g_strconcat("Gnome Layout Sample - ", name, NULL);
+
+  return title;
+}
+
+static 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));
+  pf_flow *newPara;
+
+  gtk_widget_destroy(GTK_WIDGET(fileselection));
+
+  newPara = pf_factory(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) {
+      pf_close(context->paragraph);
+    }
+
+    context->paragraph = newPara;
+    gtk_window_set_title(GTK_WINDOW(app), title);
+
+    gtk_widget_hide(area);
+    pf_breakLines(context->paragraph, context->width, context->height);
+    gtk_widget_show_all(area);
+
+    g_free(title);
+  }
+
+  g_free(fileName);
+}
+
+static 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();
+}
+
+static void newapp(GtkObject *object, gpointer data)
+{
+  GtkWidget *app = newSample("Sample.txt");
+
+  gtk_widget_show_all(app);
+}
+
+static void closeapp(GtkWidget *widget, gpointer data)
+{
+  GtkWidget *app = GTK_WIDGET(data);
+
+  closeSample(app);
+}
+
+static 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
+};
+
+static gint eventDelete(GtkWidget *widget, GdkEvent *event, gpointer data)
+{
+  closeSample(widget);
+
+  /* indicate that closeapp  already destroyed the window */
+  return TRUE;
+}
+
+static 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) {
+        pf_breakLines(context->paragraph, context->width, context->height);
+    }
+  }
+
+  return TRUE;
+}
+
+static gint eventExpose(GtkWidget *widget, GdkEvent *event, Context *context)
+{
+  if (context->paragraph != NULL) {
+    gint maxLines = pf_getLineCount(context->paragraph) - 1;
+    gint firstLine = 0, lastLine = context->height / pf_getLineHeight(context->paragraph);
+    rs_surface *surface = rs_gnomeRenderingSurfaceOpen(widget);
+
+    pf_draw(context->paragraph, surface, firstLine, (maxLines < lastLine)? maxLines : lastLine);
+    
+    rs_gnomeRenderingSurfaceClose(surface);
+  }
+
+  return TRUE;
+}
+
+GtkWidget *newSample(const gchar *fileName)
+{
+  Context *context = NEW_ARRAY(Context, 1);
+  gchar *title;
+  GtkWidget *app;
+  GtkWidget *area;
+  GtkStyle *style;
+  int i;
+
+  context->width  = 600;
+  context->height = 400;
+  context->paragraph = pf_factory(fileName, font, guiSupport);
+
+  title = prettyTitle(fileName);
+  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);
+
+  area = gtk_drawing_area_new();
+  gtk_object_set_data(GTK_OBJECT(app), "area", area);
+
+  style = gtk_style_copy(gtk_widget_get_style(area));
+
+  for (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) {
+    pf_close(context->paragraph);
+  }
+
+  DELETE_ARRAY(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;
+    const char   *defaultArgs[] = {"Sample.txt", NULL};
+    const char  **args;
+    int i;
+
+    FT_Init_FreeType(&engine);
+
+    gnome_init_with_popt_table("gnomelayout", "0.1", argc, argv, NULL, 0, &ptctx);
+
+    guiSupport = gs_gnomeGuiSupportOpen();
+    fontMap    = fm_gnomeFontMapOpen(engine, "FontMap.Gnome", 24, guiSupport, &fontStatus);
+    font       = le_scriptCompositeFontOpen(fontMap);
+
+    if (LE_FAILURE(fontStatus)) {
+        FT_Done_FreeType(engine);
+        return 1;
+    }
+
+    args = poptGetArgs(ptctx);
+    
+    if (args == NULL) {
+        args = defaultArgs;
+    }
+
+    for (i = 0; args[i] != NULL; i += 1) {
+       app = newSample(args[i]);
+           
+       gtk_widget_show_all(app);
+    }
+    
+    poptFreeContext(ptctx);
+    
+    gtk_main();
+
+    le_fontClose(font);
+    gs_gnomeGuiSupportClose(guiSupport);
+
+    FT_Done_FreeType(engine);
+
+    exit(0);
+}