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/*

 * NanoWM - Window Manager for Nano-X

 *

 * Copyright (C) 2000 Greg Haerr <greg@censoft.com>

 * Copyright (C) 2000 Alex Holden <alex@linuxhacker.org>

 */

#include <stdio.h>

#include <stdlib.h>

#define MWINCLUDECOLORS

#include "nano-X.h"

#include "nxdraw.h"

/* Uncomment this if you want debugging output from this file */

/*#define DEBUG*/

#include "nanowm.h"

/* default window style for GR_WM_PROPS_APPWINDOW*/

#define DEFAULT_WINDOW_STYLE    (GR_WM_PROPS_APPFRAME | GR_WM_PROPS_CAPTION |\

                                        GR_WM_PROPS_CLOSEBOX)

static GR_COORD lastx = FIRST_WINDOW_LOCATION;

static GR_COORD lasty = FIRST_WINDOW_LOCATION;

/*

 * A new client window has been mapped, so we need to reparent and decorate it.

 * Returns -1 on failure or 0 on success.

 */

int new_client_window(GR_WINDOW_ID wid)

{

        win window;

        GR_WINDOW_ID pid;

        GR_WINDOW_INFO winfo;

        GR_COORD x, y, width, height, xoffset, yoffset;

        GR_WM_PROPS style;

        GR_WM_PROPERTIES props;

        /* get client window information*/

        GrGetWindowInfo(wid, &winfo);

        style = winfo.props;

        /* if not redecorating or not child of root window, return*/

        if (winfo.parent != GR_ROOT_WINDOW_ID ||

            (style & GR_WM_PROPS_NODECORATE))

                return 0;

        /* deal with replacing borders with window decorations*/

        if (winfo.bordersize) {

                /*

                 * For complex reasons, it's easier to unmap,

                 * remove the borders, and then map again,

                 * rather than try to recalculate the window

                 * position in the server w/o borders.  By

                 * the time we get this event, the window has

                 * already been painted with borders...

                 * This currently causes a screen flicker as

                 * the window is painted twice.  The workaround

                 * is to create the window without borders in

                 * the first place.

                 */

                GrUnmapWindow(wid);

                /* remove client borders, if any*/

                props.flags = style | GR_WM_FLAGS_BORDERSIZE;

                props.bordersize = 0;

                GrSetWMProperties(wid, &props);

                /* remap the window without borders, call this routine again*/

                GrMapWindow(wid);

                return 0;

        }

        /* if default decoration style asked for, set real draw bits*/

        if ((style & GR_WM_PROPS_APPMASK) == GR_WM_PROPS_APPWINDOW) {

                GR_WM_PROPERTIES pr;

                style = (style & ~GR_WM_PROPS_APPMASK)|DEFAULT_WINDOW_STYLE;

                pr.flags = GR_WM_FLAGS_PROPS;

                pr.props = style;

                GrSetWMProperties(wid, &pr);

        }

        /* determine container widths and client child window offsets*/

        if (style & GR_WM_PROPS_APPFRAME) {

                width = winfo.width + CXFRAME;

                height = winfo.height + CYFRAME;

                xoffset = CXBORDER;

                yoffset = CYBORDER;

        } else if (style & GR_WM_PROPS_BORDER) {

                width = winfo.width + 2;

                height = winfo.height + 2;

                xoffset = 1;

                yoffset = 1;

        } else {

                width = winfo.width;

                height = winfo.height;

                xoffset = 0;

                yoffset = 0;

        }

        if (style & GR_WM_PROPS_CAPTION) {

                height += CYCAPTION;

                yoffset += CYCAPTION;

                if (style & GR_WM_PROPS_APPFRAME) {

                        /* extra line under caption with appframe*/

                        ++height;

                        ++yoffset;

                }

        }

        /* determine x,y window location*/

        if (style & GR_WM_PROPS_NOAUTOMOVE) {

                x = winfo.x;

                y = winfo.y;

        } else {

                /* We could proably use a more intelligent algorithm here */

                x = lastx + WINDOW_STEP;

                if((x + width) > si.cols)

                        x = FIRST_WINDOW_LOCATION;

                lastx = x;

                y = lasty + WINDOW_STEP;

                if((y + height) > si.rows)

                        y = FIRST_WINDOW_LOCATION;

                lasty = y;

        }

        /* create container window*/

        pid = GrNewWindow(GR_ROOT_WINDOW_ID, x, y, width, height,

                0, LTGRAY, BLACK);

        window.wid = pid;

        window.pid = GR_ROOT_WINDOW_ID;

        window.type = WINDOW_TYPE_CONTAINER;

        window.sizing = GR_FALSE;

        window.active = 0;

        window.data = NULL;

        window.clientid = wid;

        add_window(&window);

        /* don't erase background of container window*/

        props.flags = GR_WM_FLAGS_PROPS;

        props.props = style | GR_WM_PROPS_NOBACKGROUND;

        GrSetWMProperties(pid, &props);

        Dprintf("New client window %d container %d\n", wid, pid);

        GrSelectEvents(pid, GR_EVENT_MASK_CHLD_UPDATE

                | GR_EVENT_MASK_BUTTON_UP | GR_EVENT_MASK_BUTTON_DOWN

                | GR_EVENT_MASK_MOUSE_POSITION | GR_EVENT_MASK_EXPOSURE);

        /* reparent client to container window*/

        /* must map before reparent (nano-x bug)*/

        GrMapWindow(pid);

        GrReparentWindow(wid, pid, xoffset, yoffset);

        GrSetFocus(wid);        /* force fixed focus*/

        /* add client window*/

        window.wid = wid;

        window.pid = pid;

        window.type = WINDOW_TYPE_CLIENT;

        window.sizing = GR_FALSE;

        window.active = 0;

        window.clientid = 0;

        window.data = NULL;

        add_window(&window);

#if 0000

        /* add system utility button*/

        nid = GrNewWindow(pid, 0, 0, TITLE_BAR_HEIGHT, TITLE_BAR_HEIGHT, 0,

                                                        LTGRAY, BLACK);

        window.wid = nid;

        window.pid = pid;

        window.type = WINDOW_TYPE_UTILITYBUTTON;

        window.active = GR_FALSE;

        window.data = NULL;

        add_window(&window);

        GrSelectEvents(nid, GR_EVENT_MASK_BUTTON_DOWN | GR_EVENT_MASK_BUTTON_UP

                                | GR_EVENT_MASK_EXPOSURE

                                | GR_EVENT_MASK_MOUSE_EXIT);

        GrMapWindow(nid);

        GrBitmap(nid, buttonsgc, 0, 0, TITLE_BAR_HEIGHT, TITLE_BAR_HEIGHT,

                                                utilitybutton_notpressed);

        nid = GrNewWindow(pid, TITLE_BAR_HEIGHT + 1, 1, width - (4 *

                        TITLE_BAR_HEIGHT) - 3, TITLE_BAR_HEIGHT - 3, 1, LTGRAY,

                                                                BLACK);

        window.wid = nid;

        window.pid = pid;

        window.type = WINDOW_TYPE_TOPBAR;

        window.active = GR_FALSE;

        window.data = NULL;

        add_window(&window);

        GrSelectEvents(nid, GR_EVENT_MASK_BUTTON_DOWN | GR_EVENT_MASK_BUTTON_UP

                                | GR_EVENT_MASK_EXPOSURE

                                | GR_EVENT_MASK_MOUSE_POSITION);

        GrMapWindow(nid);

        nid = GrNewWindow(pid, width - (3 * TITLE_BAR_HEIGHT), 0,

                        TITLE_BAR_HEIGHT, TITLE_BAR_HEIGHT, 0, LTGRAY, BLACK);

        window.wid = nid;

        window.pid = pid;

        window.type = WINDOW_TYPE_ICONISEBUTTON;

        window.active = GR_FALSE;

        window.data = NULL;

        add_window(&window);

        GrSelectEvents(nid, GR_EVENT_MASK_BUTTON_DOWN | GR_EVENT_MASK_BUTTON_UP

                                | GR_EVENT_MASK_EXPOSURE

                                | GR_EVENT_MASK_MOUSE_EXIT);

        GrMapWindow(nid);

        GrBitmap(nid, buttonsgc, 0, 0, TITLE_BAR_HEIGHT, TITLE_BAR_HEIGHT,

                                                iconisebutton_notpressed);

        nid = GrNewWindow(pid, width - (2 * TITLE_BAR_HEIGHT), 0,

                        TITLE_BAR_HEIGHT, TITLE_BAR_HEIGHT, 0, LTGRAY, BLACK);

        window.wid = nid;

        window.pid = pid;

        window.type = WINDOW_TYPE_MAXIMISEBUTTON;

        window.active = GR_FALSE;

        window.data = NULL;

        add_window(&window);

        GrSelectEvents(nid, GR_EVENT_MASK_BUTTON_DOWN | GR_EVENT_MASK_BUTTON_UP

                                | GR_EVENT_MASK_EXPOSURE

                                | GR_EVENT_MASK_MOUSE_EXIT);

        GrMapWindow(nid);

        GrBitmap(nid, buttonsgc, 0, 0, TITLE_BAR_HEIGHT, TITLE_BAR_HEIGHT,

                                                maximisebutton_notpressed);

        nid = GrNewWindow(pid, width - TITLE_BAR_HEIGHT, 0,

                        TITLE_BAR_HEIGHT, TITLE_BAR_HEIGHT, 0, LTGRAY, BLACK);

        window.wid = nid;

        window.pid = pid;

        window.type = WINDOW_TYPE_CLOSEBUTTON;

        window.active = GR_FALSE;

        window.data = NULL;

        add_window(&window);

        GrSelectEvents(nid, GR_EVENT_MASK_BUTTON_DOWN | GR_EVENT_MASK_BUTTON_UP

                                | GR_EVENT_MASK_EXPOSURE

                                | GR_EVENT_MASK_MOUSE_EXIT);

        GrMapWindow(nid);

        GrBitmap(nid, buttonsgc, 0, 0, TITLE_BAR_HEIGHT, TITLE_BAR_HEIGHT,

                                                closebutton_notpressed);

        nid = GrNewWindow(pid, 1, TITLE_BAR_HEIGHT + 1, BORDER_WIDTHS - 2,

                                height - TITLE_BAR_HEIGHT - BORDER_WIDTHS - 1,

                                1, LTGRAY, BLACK);

        window.wid = nid;

        window.pid = pid;

        window.type = WINDOW_TYPE_LEFTBAR;

        window.active = GR_FALSE;

        window.data = NULL;

        add_window(&window);

        GrSetCursor(nid, horizontal_resize_columns, horizontal_resize_rows,

                        horizontal_resize_hotx, horizontal_resize_hoty,

                        BLACK, WHITE, horizontal_resize_fg,

                        horizontal_resize_bg);

        GrSelectEvents(nid, GR_EVENT_MASK_BUTTON_DOWN | GR_EVENT_MASK_BUTTON_UP

                                | GR_EVENT_MASK_MOUSE_POSITION);

        GrMapWindow(nid);

        nid = GrNewWindow(pid, 1, height - BORDER_WIDTHS + 1, BORDER_WIDTHS - 2,

                                        BORDER_WIDTHS - 2, 1, LTGRAY, BLACK);

        window.wid = nid;

        window.pid = pid;

        window.type = WINDOW_TYPE_LEFTRESIZE;

        window.active = GR_FALSE;

        window.data = NULL;

        add_window(&window);

        GrSetCursor(nid, lefthand_resize_columns, lefthand_resize_rows,

                        lefthand_resize_hotx, lefthand_resize_hoty,

                        BLACK, WHITE, lefthand_resize_fg, lefthand_resize_bg);

        GrSelectEvents(nid, GR_EVENT_MASK_BUTTON_DOWN | GR_EVENT_MASK_BUTTON_UP

                                | GR_EVENT_MASK_MOUSE_POSITION);

        GrMapWindow(nid);

        nid = GrNewWindow(pid, BORDER_WIDTHS, height - BORDER_WIDTHS + 1,

                        width - (2 * BORDER_WIDTHS), BORDER_WIDTHS - 2, 1,

                                                        LTGRAY, BLACK);

        window.wid = nid;

        window.pid = pid;

        window.type = WINDOW_TYPE_BOTTOMBAR;

        window.active = GR_FALSE;

        window.data = NULL;

        add_window(&window);

        GrSetCursor(nid, vertical_resize_columns, vertical_resize_rows,

                        vertical_resize_hotx, vertical_resize_hoty,

                        BLACK, WHITE, vertical_resize_fg, vertical_resize_bg);

        GrSelectEvents(nid, GR_EVENT_MASK_BUTTON_DOWN | GR_EVENT_MASK_BUTTON_UP

                                | GR_EVENT_MASK_MOUSE_POSITION);

        GrMapWindow(nid);

        nid = GrNewWindow(pid, width - BORDER_WIDTHS + 1,

                        height - BORDER_WIDTHS + 1, BORDER_WIDTHS - 2,

                                        BORDER_WIDTHS - 2, 1, LTGRAY, BLACK);

        window.wid = nid;

        window.pid = pid;

        window.type = WINDOW_TYPE_RIGHTRESIZE;

        window.active = GR_FALSE;

        window.data = NULL;

        add_window(&window);

        GrSetCursor(nid, righthand_resize_columns, righthand_resize_rows,

                        righthand_resize_hotx, righthand_resize_hoty,

                        BLACK, WHITE, righthand_resize_fg, righthand_resize_bg);

        GrSelectEvents(nid, GR_EVENT_MASK_BUTTON_DOWN | GR_EVENT_MASK_BUTTON_UP

                                | GR_EVENT_MASK_MOUSE_POSITION);

        GrMapWindow(nid);

        nid = GrNewWindow(pid, width - BORDER_WIDTHS + 1, TITLE_BAR_HEIGHT + 1,

                BORDER_WIDTHS - 2, height - TITLE_BAR_HEIGHT - BORDER_WIDTHS -1,

                                                         1, LTGRAY, BLACK);

        window.wid = nid;

        window.pid = pid;

        window.type = WINDOW_TYPE_RIGHTBAR;

        window.active = GR_FALSE;

        window.data = NULL;

        add_window(&window);

        GrSetCursor(nid, horizontal_resize_columns, horizontal_resize_rows,

                        horizontal_resize_hotx, horizontal_resize_hoty,

                        BLACK, WHITE, horizontal_resize_fg,

                        horizontal_resize_bg);

        GrSelectEvents(nid, GR_EVENT_MASK_BUTTON_DOWN | GR_EVENT_MASK_BUTTON_UP

                                | GR_EVENT_MASK_MOUSE_POSITION);

        GrMapWindow(nid);

#endif

        return 0;

}

/*

 * We've just received an event notifying us that a client window has been

 * unmapped, so we need to destroy all of the decorations.

 */

void client_window_destroy(win *window)

{

        win *pwin;

        GR_WINDOW_ID pid;

        Dprintf("Client window %d has been destroyed\n", window->wid);

        if(!(pwin = find_window(window->pid))) {

                fprintf(stderr, "Couldn't find parent of destroyed window "

                                "%d\n", window->wid);

                return;

        }

        /* Do it this way around so we don't handle events after destroying */

        pid = pwin->wid;

        remove_window_and_children(pwin);

        Dprintf("Destroying container %d\n", pid);

        GrDestroyWindow(pid);

}