NMEGtkTest.c

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/* License: new BSD license (see NME.h) */

#include <stdlib.h>
#include <stdio.h>
#include <gtk/gtk.h>

#include "NME.h"
#include "NMEStyle.h"
#include "NMEGtk.h"

static void destroy(GtkWidget *widget, gpointer data)
{
    gtk_main_quit();
}

static void linkFun(NMEConstText link, void *data)
{
    printf("%s\n", link);
}

static void makeWindow(char const *title, NMEConstText input, NMEInt inputLen)
{
    GtkWidget *window, *sw, *view;
    GtkTextBuffer *textBuffer;
    int charSize;
    static NMEGtk nmegtk;
    NMEErr err;
    
    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    g_signal_connect(G_OBJECT(window), "destroy",
            G_CALLBACK(destroy), NULL);
    gtk_window_set_title(GTK_WINDOW(window), title);
    gtk_widget_set_usize(GTK_WIDGET(window), 500, 400);
    
    view = gtk_text_view_new();
    gtk_text_view_set_editable(GTK_TEXT_VIEW(view), FALSE);
    gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(view), GTK_WRAP_WORD);
    sw = gtk_scrolled_window_new(NULL, NULL);
    gtk_container_add(GTK_CONTAINER(sw), view);
    gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(sw),
            GTK_POLICY_NEVER,
            GTK_POLICY_ALWAYS);
    gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(view), GTK_WRAP_WORD);
    gtk_text_view_set_left_margin(GTK_TEXT_VIEW(view), 4);
    gtk_text_view_set_right_margin(GTK_TEXT_VIEW(view), 4);
    textBuffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(view));
    gtk_container_add(GTK_CONTAINER(window), sw);
    
    charSize = pango_font_description_get_size(view->style->font_desc);
    NMEGtkInit(&nmegtk, textBuffer, charSize);
    NMEGtkSetLinkFun(&nmegtk, linkFun, NULL);
    
    gtk_widget_show_all(window);
    
    err = NMEGtkInsert(textBuffer, &nmegtk, input, inputLen, FALSE, TRUE);
    
    if (err != kNMEErrOk)
    {
        fprintf(stderr, "Error %d\n", err);
        exit(1);
    }
}

int main(int argc, char **argv)
{
    NMEText input, output, buf;
    NMEInt inputLen, inputSize, outputLen, bufSize, n;
    FILE *fp;
    
    gtk_init(&argc, &argv);
    
    if (argc > 2)
    {
        fprintf(stderr, "Usage: %s [file]\n", argv[0]);
        exit(1);
    }
    
    // read file
    if (argc == 2)
    {
        fp = fopen(argv[1], "r");
        if (!fp)
        {
            fprintf(stderr, "Cannot open file \"%s\"\n", argv[1]);
            exit(1);
        }
    }
    else
        fp = stdin;
    
    inputSize = 1024;
    input = (NMEText)malloc(inputSize);
    for (inputLen = 0; !feof(fp); )
    {
        n = fread(input + inputLen, 1, inputSize - inputLen, fp);
        if (n < 0)
            break;
        inputLen += n;
        inputSize += 2 * n;
        input = (NMEText)realloc(input, inputSize);
    }
    
    if (argc == 2)
        fclose(fp);
    
    // create text window
    makeWindow("Nyctergatis Markup Engine", input, inputLen);
    
    // run GTK+ main event loop
    gtk_main();
    
    return 0;
}