ui/motif/toolkit.c

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2014 Olaf Wintermann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

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

#include "toolkit.h"
#include "toolbar.h"
#include "stock.h"
#include "../common/document.h"
#include "../common/properties.h"
#include "../../ucx/buffer.h"

static XtAppContext app;
static Display *display;
static Widget active_window;
static char *application_name;

static ui_callback appclose_fnc;
static void *appclose_udata;

static int is_toplevel_realized = 0;

static String fallback[] = {
	"*fontList: -dt-interface system-medium-r-normal-s*utf*:",
	NULL
};

void ui_init(char *appname, int argc, char **argv) { 
    application_name = appname;
    
    XtToolkitInitialize();
    XtSetLanguageProc(NULL, NULL, NULL);
    app = XtCreateApplicationContext();
    
    display =  XtOpenDisplay(app, NULL, appname, appname, NULL, 0, &argc, argv);
    char **missing = NULL;
    int nm = 0;
    char *def = NULL;
    XCreateFontSet(display, "-dt-interface system-medium-r-normal-s*utf*", &missing, &nm, &def);
    
    uic_docmgr_init();
    ui_toolbar_init();
    ui_stock_init();
    
    uic_load_app_properties();
}

char* ui_appname() {
    return application_name;
}

Display* ui_get_display() {
    return display;
}

void ui_exitfunc(ui_callback f, void *udata) {
    appclose_fnc = f;
    appclose_udata = udata;
}

void ui_openfilefunc(ui_callback f, void *userdata) {
    // OS X only
}

void ui_main() {
    XtAppMainLoop(app);
    if(appclose_fnc) {
        appclose_fnc(NULL, appclose_udata);
    }
    uic_store_app_properties();
}

void ui_secondary_event_loop(int *loop) {
    while(*loop && !XtAppGetExitFlag(app)) {
        XEvent event;
        XtAppNextEvent(app, &event);
        XtDispatchEvent(&event);
    }
}

void ui_show(UiObject *obj) {
    uic_check_group_widgets(obj->ctx);
    XtRealizeWidget(obj->widget);
}

void ui_set_enabled(UIWIDGET widget, int enabled) {
    XtSetSensitive(widget, enabled);
}

void ui_clipboard_set(char *str) {
    printf("copy: {%s}\n", str);
    int length = strlen(str) + 1;
    
    Display *dp = XtDisplayOfObject(active_window);
    Window window = XtWindowOfObject(active_window);
    
    XmString label = XmStringCreateLocalized("toolkit_clipboard");
    long id = 0;
    
    while(XmClipboardStartCopy(
            dp,
            window,
            label,
            CurrentTime,
            NULL,
            NULL,
            &id) == ClipboardLocked);
    XmStringFree(label);
    
    while(XmClipboardCopy(
            dp,
            window,
            id,
            "STRING",
            str, 
            length,
            1,
            NULL) == ClipboardLocked);
    
    while(XmClipboardEndCopy(dp, window, id) == ClipboardLocked);
}

char* ui_clipboard_get() {
    Display *dp = XtDisplayOfObject(active_window);
    Window window = XtWindowOfObject(active_window);
    
    long id;
    size_t size = 128;
    char *buf = malloc(size);
    
    int r;
    for(;;) {
        r = XmClipboardRetrieve(dp, window, "STRING", buf, size, NULL, &id);
        if(r == ClipboardSuccess) {
            break;
        } else if(r == ClipboardTruncate) {
            size *= 2;
            buf = realloc(buf, size);
        } else if(r == ClipboardNoData) {
            free(buf);
            buf = NULL;
            break;
        }
    }
    
    return buf;
}

void ui_set_active_window(Widget w) {
    active_window = w;
}

Widget ui_get_active_window() {
    return active_window;
}