SDL/src/video/haiku/SDL_bwindow.cc

/*
  Simple DirectMedia Layer
  Copyright (C) 1997-2024 Sam Lantinga <slouken@libsdl.org>

  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages
  arising from the use of this software.

  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:

  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.
*/
#include "SDL_internal.h"

#ifdef SDL_VIDEO_DRIVER_HAIKU
#include "../SDL_sysvideo.h"

#include "SDL_BWin.h"
#include <new>

// Define a path to window's BWIN data
#ifdef __cplusplus
extern "C" {
#endif

static SDL_INLINE SDL_BWin *_ToBeWin(SDL_Window *window)
{
    return (SDL_BWin *)(window->internal);
}

static SDL_INLINE SDL_BLooper *_GetBeLooper()
{
    return SDL_Looper;
}

static bool _InitWindow(SDL_VideoDevice *_this, SDL_Window *window, SDL_PropertiesID create_props)
{
    uint32 flags = 0;
    window_look look = B_TITLED_WINDOW_LOOK;

    BRect bounds(
        window->x,
        window->y,
        window->x + window->w - 1,    //BeWindows have an off-by-one px w/h thing
        window->y + window->h - 1
    );

    if (window->flags & SDL_WINDOW_FULLSCREEN) {
        // TODO: Add support for this flag
        printf(__FILE__": %d!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n",__LINE__);
    }
    if (window->flags & SDL_WINDOW_OPENGL) {
        // TODO: Add support for this flag
    }
    if (!(window->flags & SDL_WINDOW_RESIZABLE)) {
        flags |= B_NOT_RESIZABLE | B_NOT_ZOOMABLE;
    }
    if (window->flags & SDL_WINDOW_BORDERLESS) {
        look = B_NO_BORDER_WINDOW_LOOK;
    }

    SDL_BWin *bwin = new(std::nothrow) SDL_BWin(bounds, look, flags);
    if (!bwin) {
        return false;
    }

    window->internal = (SDL_WindowData *)bwin;
    int32 winID = _GetBeLooper()->GetID(window);
    bwin->SetID(winID);

    return true;
}

bool HAIKU_CreateWindow(SDL_VideoDevice *_this, SDL_Window *window, SDL_PropertiesID create_props)
{
    if (!_InitWindow(_this, window, create_props)) {
        return false;
    }

    // Start window loop
    _ToBeWin(window)->Show();
    return true;
}

void HAIKU_SetWindowTitle(SDL_VideoDevice *_this, SDL_Window * window)
{
    BMessage msg(BWIN_SET_TITLE);
    msg.AddString("window-title", window->title);
    _ToBeWin(window)->PostMessage(&msg);
}

bool HAIKU_SetWindowPosition(SDL_VideoDevice *_this, SDL_Window * window)
{
    BMessage msg(BWIN_MOVE_WINDOW);
    msg.AddInt32("window-x", window->pending.x);
    msg.AddInt32("window-y", window->pending.y);
    _ToBeWin(window)->PostMessage(&msg);
    return true;
}

void HAIKU_SetWindowSize(SDL_VideoDevice *_this, SDL_Window * window)
{
    BMessage msg(BWIN_RESIZE_WINDOW);
    msg.AddInt32("window-w", window->pending.w - 1);
    msg.AddInt32("window-h", window->pending.h - 1);
    _ToBeWin(window)->PostMessage(&msg);
}

void HAIKU_SetWindowBordered(SDL_VideoDevice *_this, SDL_Window * window, bool bordered)
{
    BMessage msg(BWIN_SET_BORDERED);
    msg.AddBool("window-border", bordered != false);
    _ToBeWin(window)->PostMessage(&msg);
}

void HAIKU_SetWindowResizable(SDL_VideoDevice *_this, SDL_Window * window, bool resizable)
{
    BMessage msg(BWIN_SET_RESIZABLE);
    msg.AddBool("window-resizable", resizable != false);
    _ToBeWin(window)->PostMessage(&msg);
}

void HAIKU_ShowWindow(SDL_VideoDevice *_this, SDL_Window * window)
{
    BMessage msg(BWIN_SHOW_WINDOW);
    _ToBeWin(window)->PostMessage(&msg);
}

void HAIKU_HideWindow(SDL_VideoDevice *_this, SDL_Window * window)
{
    BMessage msg(BWIN_HIDE_WINDOW);
    _ToBeWin(window)->PostMessage(&msg);
}

void HAIKU_RaiseWindow(SDL_VideoDevice *_this, SDL_Window * window)
{
    BMessage msg(BWIN_SHOW_WINDOW);    // Activate this window and move to front
    _ToBeWin(window)->PostMessage(&msg);
}

void HAIKU_MaximizeWindow(SDL_VideoDevice *_this, SDL_Window * window)
{
    BMessage msg(BWIN_MAXIMIZE_WINDOW);
    _ToBeWin(window)->PostMessage(&msg);
}

void HAIKU_MinimizeWindow(SDL_VideoDevice *_this, SDL_Window * window)
{
    BMessage msg(BWIN_MINIMIZE_WINDOW);
    _ToBeWin(window)->PostMessage(&msg);
}

void HAIKU_RestoreWindow(SDL_VideoDevice *_this, SDL_Window * window)
{
    BMessage msg(BWIN_RESTORE_WINDOW);
    _ToBeWin(window)->PostMessage(&msg);
}

SDL_FullscreenResult HAIKU_SetWindowFullscreen(SDL_VideoDevice *_this, SDL_Window *window, SDL_VideoDisplay * display, SDL_FullscreenOp fullscreen)
{
    // Haiku tracks all video display information
    BMessage msg(BWIN_FULLSCREEN);
    msg.AddBool("fullscreen", !!fullscreen);
    _ToBeWin(window)->PostMessage(&msg);
    return SDL_FULLSCREEN_SUCCEEDED;
}


void HAIKU_SetWindowMinimumSize(SDL_VideoDevice *_this, SDL_Window * window)
{
    BMessage msg(BWIN_MINIMUM_SIZE_WINDOW);
    msg.AddInt32("window-w", window->w -1);
    msg.AddInt32("window-h", window->h -1);
    _ToBeWin(window)->PostMessage(&msg);
}

bool HAIKU_SetWindowMouseGrab(SDL_VideoDevice *_this, SDL_Window * window, bool grabbed)
{
    // TODO: Implement this!
    return SDL_Unsupported();
}

bool HAIKU_SetWindowParent(SDL_VideoDevice *_this, SDL_Window * window, SDL_Window *parent)
{
    return true;
}

bool HAIKU_SetWindowModal(SDL_VideoDevice *_this, SDL_Window *window, bool modal)
{
    if (modal) {
        _ToBeWin(window)->SetLook(B_MODAL_WINDOW_LOOK);
        _ToBeWin(window)->SetFeel(B_MODAL_SUBSET_WINDOW_FEEL);
        _ToBeWin(window)->AddToSubset(_ToBeWin(window->parent));
    } else {
        window_look look = (window->flags & SDL_WINDOW_BORDERLESS) ? B_NO_BORDER_WINDOW_LOOK : B_TITLED_WINDOW_LOOK;
        _ToBeWin(window)->RemoveFromSubset(_ToBeWin(window->parent));
        _ToBeWin(window)->SetLook(look);
        _ToBeWin(window)->SetFeel(B_NORMAL_WINDOW_FEEL);
    }

    return true;
}

void HAIKU_DestroyWindow(SDL_VideoDevice *_this, SDL_Window * window)
{
    _ToBeWin(window)->LockLooper();    // This MUST be locked
    _GetBeLooper()->ClearID(_ToBeWin(window));
    _ToBeWin(window)->Quit();
    window->internal = NULL;
}

#ifdef __cplusplus
}
#endif

#endif // SDL_VIDEO_DRIVER_HAIKU