HelenOS sources

root/uspace/app/launcher/launcher.c

DEFINITIONS

1. wnd_close
2. pb_clicked
3. app_launch
4. print_syntax
5. main

/*
 * Copyright (c) 2020 Jiri Svoboda
 * Copyright (c) 2012 Petr Koupy
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - 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.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

/** @addtogroup launcher
 * @{
 */
/** @file Launcher
 */

#include <errno.h>
#include <gfx/coord.h>
#include <gfximage/tga.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <str.h>
#include <str_error.h>
#include <task.h>
#include <ui/fixed.h>
#include <ui/image.h>
#include <ui/label.h>
#include <ui/pbutton.h>
#include <ui/resource.h>
#include <ui/ui.h>
#include <ui/window.h>

#include "images.h"
#include "launcher.h"

#define NAME  "launcher"

static char *display_spec = UI_DISPLAY_DEFAULT;

static void wnd_close(ui_window_t *, void *);

static ui_window_cb_t window_cb = {
        .close = wnd_close
};

static void pb_clicked(ui_pbutton_t *, void *);

static ui_pbutton_cb_t pbutton_cb = {
        .clicked = pb_clicked
};

static int app_launch(const char *, const char *);

/** Window close button was clicked.
 *
 * @param window Window
 * @param arg Argument (launcher)
 */
static void wnd_close(ui_window_t *window, void *arg)
{
        launcher_t *launcher = (launcher_t *) arg;

        ui_quit(launcher->ui);
}

/** Push button was clicked.
 *
 * @param pbutton Push button
 * @param arg Argument (launcher)
 */
static void pb_clicked(ui_pbutton_t *pbutton, void *arg)
{
        launcher_t *launcher = (launcher_t *) arg;

        if (pbutton == launcher->pb1) {
                app_launch("/app/terminal", NULL);
        } else if (pbutton == launcher->pb2) {
                app_launch("/app/calculator", NULL);
        } else if (pbutton == launcher->pb3) {
                app_launch("/app/uidemo", NULL);
        } else if (pbutton == launcher->pb4) {
                app_launch("/app/gfxdemo", "ui");
        }
}

static int app_launch(const char *app, const char *arg)
{
        errno_t rc;
        task_id_t id;
        task_wait_t wait;

        if (display_spec != UI_DISPLAY_DEFAULT) {
                printf("%s: Spawning %s -d %s\n", NAME, app, display_spec);
                rc = task_spawnl(&id, &wait, app, app, "-d", display_spec,
                    arg, NULL);
        } else {
                printf("%s: Spawning %s\n", NAME, app);
                rc = task_spawnl(&id, &wait, app, app, arg, NULL);
        }

        if (rc != EOK) {
                printf("%s: Error spawning %s %s (%s)\n", NAME, app,
                    display_spec != DISPLAY_DEFAULT ? display_spec :
                    "<default>", str_error(rc));
                return -1;
        }

        task_exit_t texit;
        int retval;
        rc = task_wait(&wait, &texit, &retval);
        if ((rc != EOK) || (texit != TASK_EXIT_NORMAL)) {
                printf("%s: Error retrieving retval from %s (%s)\n", NAME,
                    app, str_error(rc));
                return -1;
        }

        return retval;
}

static void print_syntax(void)
{
        printf("Syntax: %s [-d <display-spec>]\n", NAME);
}

int main(int argc, char *argv[])
{
        int i;
        launcher_t launcher;
        ui_t *ui = NULL;
        ui_wnd_params_t params;
        ui_window_t *window = NULL;
        ui_resource_t *ui_res;
        gfx_bitmap_params_t logo_params;
        gfx_bitmap_t *logo_bmp;
        gfx_context_t *gc;
        gfx_rect_t logo_rect;
        gfx_rect_t rect;
        gfx_coord2_t off;
        errno_t rc;

        i = 1;
        while (i < argc) {
                if (str_cmp(argv[i], "-d") == 0) {
                        ++i;
                        if (i >= argc) {
                                printf("Argument missing.\n");
                                print_syntax();
                                return 1;
                        }

                        display_spec = argv[i++];
                } else {
                        printf("Invalid option '%s'.\n", argv[i]);
                        print_syntax();
                        return 1;
                }
        }

        rc = ui_create(display_spec, &ui);
        if (rc != EOK) {
                printf("Error creating UI on display %s.\n", display_spec);
                return rc;
        }

        ui_wnd_params_init(&params);
        params.caption = "Launcher";
        params.placement = ui_wnd_place_top_right;
        params.rect.p0.x = 0;
        params.rect.p0.y = 0;
        params.rect.p1.x = 210;
        params.rect.p1.y = 300;

        memset((void *) &launcher, 0, sizeof(launcher));
        launcher.ui = ui;

        rc = ui_window_create(ui, &params, &window);
        if (rc != EOK) {
                printf("Error creating window.\n");
                return rc;
        }

        ui_window_set_cb(window, &window_cb, (void *) &launcher);
        launcher.window = window;

        ui_res = ui_window_get_res(window);
        gc = ui_window_get_gc(window);

        rc = decode_tga(gc, (void *) helenos_tga, helenos_tga_size,
            &logo_bmp, &logo_rect);
        if (rc != EOK) {
                printf("Unable to decode logo.\n");
                return 1;
        }

        gfx_bitmap_params_init(&logo_params);
        logo_params.rect = logo_rect;

        rc = ui_fixed_create(&launcher.fixed);
        if (rc != EOK) {
                printf("Error creating fixed layout.\n");
                return rc;
        }

        rc = ui_image_create(ui_res, logo_bmp, &logo_rect, &launcher.image);
        if (rc != EOK) {
                printf("Error creating label.\n");
                return rc;
        }

        off.x = 6;
        off.y = 32;
        gfx_rect_translate(&off, &logo_rect, &rect);

        /* Adjust for frame width (2 x 1 pixel) */
        rect.p1.x += 2;
        rect.p1.y += 2;
        ui_image_set_rect(launcher.image, &rect);
        ui_image_set_flags(launcher.image, ui_imgf_frame);

        rc = ui_fixed_add(launcher.fixed, ui_image_ctl(launcher.image));
        if (rc != EOK) {
                printf("Error adding control to layout.\n");
                return rc;
        }

        rc = ui_label_create(ui_res, "Launch application", &launcher.label);
        if (rc != EOK) {
                printf("Error creating label.\n");
                return rc;
        }

        rect.p0.x = 60;
        rect.p0.y = 107;
        rect.p1.x = 160;
        rect.p1.y = 120;
        ui_label_set_rect(launcher.label, &rect);
        ui_label_set_halign(launcher.label, gfx_halign_center);

        rc = ui_fixed_add(launcher.fixed, ui_label_ctl(launcher.label));
        if (rc != EOK) {
                printf("Error adding control to layout.\n");
                return rc;
        }

        rc = ui_pbutton_create(ui_res, "Terminal", &launcher.pb1);
        if (rc != EOK) {
                printf("Error creating button.\n");
                return rc;
        }

        ui_pbutton_set_cb(launcher.pb1, &pbutton_cb, (void *) &launcher);

        rect.p0.x = 15;
        rect.p0.y = 130;
        rect.p1.x = 190;
        rect.p1.y = 158;
        ui_pbutton_set_rect(launcher.pb1, &rect);

        rc = ui_fixed_add(launcher.fixed, ui_pbutton_ctl(launcher.pb1));
        if (rc != EOK) {
                printf("Error adding control to layout.\n");
                return rc;
        }

        rc = ui_pbutton_create(ui_res, "Calculator", &launcher.pb2);
        if (rc != EOK) {
                printf("Error creating button.\n");
                return rc;
        }

        ui_pbutton_set_cb(launcher.pb2, &pbutton_cb, (void *) &launcher);

        rect.p0.x = 15;
        rect.p0.y = 170;
        rect.p1.x = 190;
        rect.p1.y = 198;
        ui_pbutton_set_rect(launcher.pb2, &rect);

        rc = ui_fixed_add(launcher.fixed, ui_pbutton_ctl(launcher.pb2));
        if (rc != EOK) {
                printf("Error adding control to layout.\n");
                return rc;
        }

        rc = ui_pbutton_create(ui_res, "UI Demo", &launcher.pb3);
        if (rc != EOK) {
                printf("Error creating button.\n");
                return rc;
        }

        ui_pbutton_set_cb(launcher.pb3, &pbutton_cb, (void *) &launcher);

        rect.p0.x = 15;
        rect.p0.y = 210;
        rect.p1.x = 190;
        rect.p1.y = 238;
        ui_pbutton_set_rect(launcher.pb3, &rect);

        rc = ui_fixed_add(launcher.fixed, ui_pbutton_ctl(launcher.pb3));
        if (rc != EOK) {
                printf("Error adding control to layout.\n");
                return rc;
        }

        rc = ui_pbutton_create(ui_res, "GFX Demo", &launcher.pb4);
        if (rc != EOK) {
                printf("Error creating button.\n");
                return rc;
        }

        ui_pbutton_set_cb(launcher.pb4, &pbutton_cb, (void *) &launcher);

        rect.p0.x = 15;
        rect.p0.y = 250;
        rect.p1.x = 190;
        rect.p1.y = 278;
        ui_pbutton_set_rect(launcher.pb4, &rect);

        rc = ui_fixed_add(launcher.fixed, ui_pbutton_ctl(launcher.pb4));
        if (rc != EOK) {
                printf("Error adding control to layout.\n");
                return rc;
        }

        ui_window_add(window, ui_fixed_ctl(launcher.fixed));

        (void) ui_res;
        (void) app_launch;

        rc = ui_window_paint(window);
        if (rc != EOK) {
                printf("Error painting window.\n");
                return rc;
        }

        ui_run(ui);

        ui_window_destroy(window);
        ui_destroy(ui);

        return 0;
}

/** @}
 */