src/video/win32/SDL_win32events.c
author Sam Lantinga <slouken@libsdl.org>
Sun, 06 Sep 2009 15:04:38 +0000
changeset 3256 83c87f2b2aab
parent 3253 5d7ef5970073
child 3260 85bf3f297b5c
permissions -rw-r--r--
Fixed bug where minimized windows get zero width/height
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2009 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#if (_WIN32_WINNT < 0x0501)
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#undef _WIN32_WINNT
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#define _WIN32_WINNT 0x0501
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#endif
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#include "SDL_config.h"
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#include "SDL_win32video.h"
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#include "SDL_syswm.h"
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#include "SDL_vkeys.h"
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#include "../../events/SDL_events_c.h"
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/*#define WMMSG_DEBUG*/
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#ifdef WMMSG_DEBUG
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#include <stdio.h>
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#include "wmmsg.h"
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#endif
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/* Masks for processing the windows KEYDOWN and KEYUP messages */
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#define REPEATED_KEYMASK    (1<<30)
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#define EXTENDED_KEYMASK    (1<<24)
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#define VK_ENTER    10          /* Keypad Enter ... no VKEY defined? */
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/* Make sure XBUTTON stuff is defined that isn't in older Platform SDKs... */
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#ifndef WM_XBUTTONDOWN
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#define WM_XBUTTONDOWN 0x020B
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#endif
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#ifndef WM_XBUTTONUP
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#define WM_XBUTTONUP 0x020C
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#endif
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#ifndef GET_XBUTTON_WPARAM
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#define GET_XBUTTON_WPARAM(w) (HIWORD(w))
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#endif
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#ifndef WM_INPUT
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#define WM_INPUT 0x00ff
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#endif
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extern HCTX *g_hCtx;
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extern HANDLE *mice;
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extern int total_mice;
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extern int tablet;
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int pressure = 0;               /* the pressure reported by the tablet */
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static WPARAM
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RemapVKEY(WPARAM wParam, LPARAM lParam)
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{
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    int i;
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    BYTE scancode = (BYTE) ((lParam >> 16) & 0xFF);
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    /* Windows remaps alphabetic keys based on current layout.
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       We try to provide USB scancodes, so undo this mapping.
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     */
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    if (wParam >= 'A' && wParam <= 'Z') {
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        if (scancode != alpha_scancodes[wParam - 'A']) {
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            for (i = 0; i < SDL_arraysize(alpha_scancodes); ++i) {
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                if (scancode == alpha_scancodes[i]) {
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                    wParam = 'A' + i;
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                    break;
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                }
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            }
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        }
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    }
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    /* Keypad keys are a little trickier, we always scan for them. */
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    for (i = 0; i < SDL_arraysize(keypad_scancodes); ++i) {
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        if (scancode == keypad_scancodes[i]) {
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            wParam = VK_NUMPAD0 + i;
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            break;
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        }
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    }
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    return wParam;
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}
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LRESULT CALLBACK
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WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
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{
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    SDL_WindowData *data;
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    RAWINPUT *raw;
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    PACKET packet;
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    /* Send a SDL_SYSWMEVENT if the application wants them */
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    if (SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE) {
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        SDL_SysWMmsg wmmsg;
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        SDL_VERSION(&wmmsg.version);
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        wmmsg.hwnd = hwnd;
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        wmmsg.msg = msg;
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        wmmsg.wParam = wParam;
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        wmmsg.lParam = lParam;
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        SDL_SendSysWMEvent(&wmmsg);
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    }
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    /* Get the window data for the window */
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    data = (SDL_WindowData *) GetProp(hwnd, TEXT("SDL_WindowData"));
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    if (!data) {
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        return CallWindowProc(DefWindowProc, hwnd, msg, wParam, lParam);
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    }
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#ifdef WMMSG_DEBUG
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    {
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        FILE *log = fopen("wmmsg.txt", "a");
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        fprintf(log, "Received windows message: %p ", hwnd);
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        if (msg > MAX_WMMSG) {
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            fprintf(log, "%d", msg);
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        } else {
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            fprintf(log, "%s", wmtab[msg]);
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        }
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        fprintf(log, " -- 0x%X, 0x%X\n", wParam, lParam);
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        fclose(log);
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    }
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#endif
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    switch (msg) {
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    case WT_PACKET:
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        {
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            /* if we receive such data we need to update the pressure */
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            SDL_VideoData *videodata = data->videodata;
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            if (videodata->wintabDLL
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                && videodata->WTPacket((HCTX) lParam, (UINT) wParam, &packet)) {
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                SDL_ChangeEnd(tablet, (int) packet.pkCursor);
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                pressure = (int) packet.pkNormalPressure;
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            }
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        }
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        break;
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    case WT_PROXIMITY:
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        {
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            /* checking where the proximity message showed up */
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            int h_context = LOWORD(lParam);
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            POINT point;
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            GetCursorPos(&point);
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            ScreenToClient(hwnd, &point);
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            /* are we in proximity or out of proximity */
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            if (h_context == 0) {
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                SDL_SendProximity(tablet, point.x, point.y, SDL_PROXIMITYOUT);
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            } else {
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                SDL_SendProximity(tablet, point.x, point.y, SDL_PROXIMITYIN);
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            }
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        }
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        break;
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    case WM_SHOWWINDOW:
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        {
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            if (wParam) {
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                SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_SHOWN, 0,
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                                    0);
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            } else {
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                SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_HIDDEN, 0,
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                                    0);
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            }
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        }
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        break;
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    case WM_ACTIVATE:
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        {
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            int index;
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            SDL_Keyboard *keyboard;
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            BOOL minimized;
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            minimized = HIWORD(wParam);
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            index = data->videodata->keyboard;
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            keyboard = SDL_GetKeyboard(index);
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            if (!minimized && (LOWORD(wParam) != WA_INACTIVE)) {
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                SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_SHOWN,
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                                    0, 0);
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                SDL_SendWindowEvent(data->windowID,
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                                    SDL_WINDOWEVENT_RESTORED, 0, 0);
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#ifndef _WIN32_WCE              /* WinCE misses IsZoomed() */
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                if (IsZoomed(hwnd)) {
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                    SDL_SendWindowEvent(data->windowID,
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                                        SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
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                }
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#endif
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                if (keyboard && keyboard->focus != data->windowID) {
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                    SDL_SetKeyboardFocus(index, data->windowID);
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                }
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                /* FIXME: Update keyboard state */
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            } else {
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                if (keyboard && keyboard->focus == data->windowID) {
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                    SDL_SetKeyboardFocus(index, 0);
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                }
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                if (minimized) {
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                    SDL_SendWindowEvent(data->windowID,
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                                        SDL_WINDOWEVENT_MINIMIZED, 0, 0);
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                }
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            }
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        }
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        return (0);
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/* WinCE has no RawInput, so we use the classic mouse events.
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   In classic Win32 this is done by WM_INPUT
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 */
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#ifdef _WIN32_WCE
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    case WM_MOUSEMOVE:
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        SDL_SendMouseMotion(0, 0, LOWORD(lParam), HIWORD(lParam), 0);
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        break;
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    case WM_LBUTTONDOWN:
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        SDL_SendMouseMotion(0, 0, LOWORD(lParam), HIWORD(lParam), 0);
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        SDL_SendMouseButton(0, SDL_PRESSED, SDL_BUTTON_LEFT);
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        break;
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    case WM_LBUTTONUP:
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        SDL_SendMouseMotion(0, 0, LOWORD(lParam), HIWORD(lParam), 0);
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        SDL_SendMouseButton(0, SDL_RELEASED, SDL_BUTTON_LEFT);
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        break;
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#else /* _WIN32_WCE */
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    case WM_INPUT:             /* mouse events */
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        {
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            LPBYTE lpb;
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            const RAWINPUTHEADER *header;
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            int index;
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            int i;
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            int size = 0;
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            const RAWMOUSE *raw_mouse = NULL;
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            POINT point;
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            USHORT flags;
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            int w, h;
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            /* we're collecting raw data to be able to identify the mouse (if there are several) */
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            GetRawInputData((HRAWINPUT) lParam, RID_INPUT, NULL, &size,
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                            sizeof(RAWINPUTHEADER));
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            lpb = SDL_stack_alloc(BYTE, size);
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            GetRawInputData((HRAWINPUT) lParam, RID_INPUT, lpb, &size,
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                            sizeof(RAWINPUTHEADER));
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            raw = (RAWINPUT *) lpb;
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            header = &raw->header;
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            flags = raw->data.mouse.usButtonFlags;
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            /* we're checking which mouse generated the event */
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            for (i = 0; i < total_mice; ++i) {
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                if (mice[i] == header->hDevice) {
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                    index = i;
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                    break;
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                }
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            }
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   265
            GetCursorPos(&point);
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            ScreenToClient(hwnd, &point);
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            SDL_GetWindowSize(data->windowID, &w, &h);
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            if (point.x >= 0 && point.y >= 0 && point.x < w && point.y < h) {
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                SDL_SetMouseFocus(index, data->windowID);
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            } else {
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                SDL_SetMouseFocus(index, 0);
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                /* FIXME: Should we be doing anything else here? */
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                break;
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            }
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   277
            /* if the message was sent by a tablet we have to send also pressure */
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            if (index == tablet) {
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                SDL_SendMouseMotion(index, 0, point.x, point.y, pressure);
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            } else {
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                SDL_SendMouseMotion(index, 0, point.x, point.y, 0);
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            }
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   283
            /* we're sending mouse buttons messages to check up if sth changed */
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   284
            if (flags & RI_MOUSE_LEFT_BUTTON_DOWN) {
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   285
                SDL_SendMouseButton(index, SDL_PRESSED, SDL_BUTTON_LEFT);
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   286
            } else if (flags & RI_MOUSE_LEFT_BUTTON_UP) {
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   287
                SDL_SendMouseButton(index, SDL_RELEASED, SDL_BUTTON_LEFT);
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   288
            }
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   289
            if (flags & RI_MOUSE_MIDDLE_BUTTON_DOWN) {
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   290
                SDL_SendMouseButton(index, SDL_PRESSED, SDL_BUTTON_MIDDLE);
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   291
            } else if (flags & RI_MOUSE_MIDDLE_BUTTON_UP) {
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   292
                SDL_SendMouseButton(index, SDL_RELEASED, SDL_BUTTON_MIDDLE);
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   293
            }
slouken@2766
   294
            if (flags & RI_MOUSE_RIGHT_BUTTON_DOWN) {
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   295
                SDL_SendMouseButton(index, SDL_PRESSED, SDL_BUTTON_RIGHT);
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   296
            } else if (flags & RI_MOUSE_RIGHT_BUTTON_UP) {
slouken@2710
   297
                SDL_SendMouseButton(index, SDL_RELEASED, SDL_BUTTON_RIGHT);
slouken@2710
   298
            }
slouken@2711
   299
            if (flags & RI_MOUSE_BUTTON_4_DOWN) {
slouken@2711
   300
                SDL_SendMouseButton(index, SDL_PRESSED, SDL_BUTTON_X1);
slouken@2711
   301
            } else if (flags & RI_MOUSE_BUTTON_4_UP) {
slouken@2711
   302
                SDL_SendMouseButton(index, SDL_RELEASED, SDL_BUTTON_X1);
slouken@2711
   303
            }
slouken@2711
   304
            if (flags & RI_MOUSE_BUTTON_5_DOWN) {
slouken@2711
   305
                SDL_SendMouseButton(index, SDL_PRESSED, SDL_BUTTON_X2);
slouken@2711
   306
            } else if (flags & RI_MOUSE_BUTTON_5_UP) {
slouken@2711
   307
                SDL_SendMouseButton(index, SDL_RELEASED, SDL_BUTTON_X2);
slouken@2711
   308
            }
slouken@2710
   309
            if (flags & RI_MOUSE_WHEEL) {
slouken@2975
   310
                SDL_SendMouseWheel(index, 0,
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   311
                                   (short) raw->data.mouse.usButtonData);
slouken@1895
   312
            }
slouken@2766
   313
            SDL_stack_free(lpb);
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   314
        }
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   315
        return (0);
slouken@3097
   316
#endif /* _WIN32_WCE */
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   317
slouken@1895
   318
    case WM_MOUSELEAVE:
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   319
        {
slouken@2974
   320
            int i;
slouken@1895
   321
slouken@2974
   322
            for (i = 0; i < SDL_GetNumMice(); ++i) {
slouken@2974
   323
                SDL_Mouse *mouse = SDL_GetMouse(i);
slouken@1895
   324
slouken@2974
   325
                if (mouse->focus == data->windowID) {
slouken@2974
   326
                    SDL_SetMouseFocus(i, 0);
slouken@2974
   327
                }
slouken@1895
   328
            }
slouken@1895
   329
        }
slouken@1895
   330
        return (0);
slouken@1895
   331
slouken@1895
   332
    case WM_SYSKEYDOWN:
slouken@1895
   333
    case WM_KEYDOWN:
slouken@1895
   334
        {
slouken@1895
   335
            int index;
slouken@1895
   336
slouken@1895
   337
            /* Ignore repeated keys */
slouken@1895
   338
            if (lParam & REPEATED_KEYMASK) {
slouken@1895
   339
                return (0);
slouken@1895
   340
            }
slouken@1895
   341
slouken@1895
   342
            index = data->videodata->keyboard;
slouken@2310
   343
            wParam = RemapVKEY(wParam, lParam);
slouken@1895
   344
            switch (wParam) {
slouken@1895
   345
            case VK_CONTROL:
slouken@1895
   346
                if (lParam & EXTENDED_KEYMASK)
slouken@1895
   347
                    wParam = VK_RCONTROL;
slouken@1895
   348
                else
slouken@1895
   349
                    wParam = VK_LCONTROL;
slouken@1895
   350
                break;
slouken@1895
   351
            case VK_SHIFT:
slouken@1895
   352
                /* EXTENDED trick doesn't work here */
slouken@1895
   353
                {
slouken@2308
   354
                    Uint8 *state = SDL_GetKeyboardState(NULL);
slouken@2308
   355
                    if (state[SDL_SCANCODE_LSHIFT] == SDL_RELEASED
slouken@1895
   356
                        && (GetKeyState(VK_LSHIFT) & 0x8000)) {
slouken@1895
   357
                        wParam = VK_LSHIFT;
slouken@2308
   358
                    } else if (state[SDL_SCANCODE_RSHIFT] == SDL_RELEASED
slouken@1895
   359
                               && (GetKeyState(VK_RSHIFT) & 0x8000)) {
slouken@1895
   360
                        wParam = VK_RSHIFT;
slouken@1895
   361
                    } else {
slouken@1895
   362
                        /* Probably a key repeat */
slouken@1895
   363
                        return (0);
slouken@1895
   364
                    }
slouken@1895
   365
                }
slouken@1895
   366
                break;
slouken@1895
   367
            case VK_MENU:
slouken@1895
   368
                if (lParam & EXTENDED_KEYMASK)
slouken@1895
   369
                    wParam = VK_RMENU;
slouken@1895
   370
                else
slouken@1895
   371
                    wParam = VK_LMENU;
slouken@1895
   372
                break;
slouken@2313
   373
            case VK_RETURN:
slouken@2313
   374
                if (lParam & EXTENDED_KEYMASK)
slouken@2313
   375
                    wParam = VK_ENTER;
slouken@2313
   376
                break;
slouken@1895
   377
            }
slouken@2308
   378
            if (wParam < 256) {
slouken@2308
   379
                SDL_SendKeyboardKey(index, SDL_PRESSED,
slouken@2308
   380
                                    data->videodata->key_layout[wParam]);
slouken@2308
   381
            }
slouken@1895
   382
        }
slouken@1895
   383
        return (0);
slouken@1895
   384
slouken@1895
   385
    case WM_SYSKEYUP:
slouken@1895
   386
    case WM_KEYUP:
slouken@1895
   387
        {
slouken@1895
   388
            int index;
slouken@1895
   389
slouken@1895
   390
            index = data->videodata->keyboard;
slouken@2310
   391
            wParam = RemapVKEY(wParam, lParam);
slouken@1895
   392
            switch (wParam) {
slouken@1895
   393
            case VK_CONTROL:
slouken@1895
   394
                if (lParam & EXTENDED_KEYMASK)
slouken@1895
   395
                    wParam = VK_RCONTROL;
slouken@1895
   396
                else
slouken@1895
   397
                    wParam = VK_LCONTROL;
slouken@1895
   398
                break;
slouken@1895
   399
            case VK_SHIFT:
slouken@1895
   400
                /* EXTENDED trick doesn't work here */
slouken@1895
   401
                {
slouken@2308
   402
                    Uint8 *state = SDL_GetKeyboardState(NULL);
slouken@2308
   403
                    if (state[SDL_SCANCODE_LSHIFT] == SDL_PRESSED
slouken@1895
   404
                        && !(GetKeyState(VK_LSHIFT) & 0x8000)) {
slouken@1895
   405
                        wParam = VK_LSHIFT;
slouken@2308
   406
                    } else if (state[SDL_SCANCODE_RSHIFT] == SDL_PRESSED
slouken@1895
   407
                               && !(GetKeyState(VK_RSHIFT) & 0x8000)) {
slouken@1895
   408
                        wParam = VK_RSHIFT;
slouken@1895
   409
                    } else {
slouken@1895
   410
                        /* Probably a key repeat */
slouken@1895
   411
                        return (0);
slouken@1895
   412
                    }
slouken@1895
   413
                }
slouken@1895
   414
                break;
slouken@1895
   415
            case VK_MENU:
slouken@1895
   416
                if (lParam & EXTENDED_KEYMASK)
slouken@1895
   417
                    wParam = VK_RMENU;
slouken@1895
   418
                else
slouken@1895
   419
                    wParam = VK_LMENU;
slouken@1895
   420
                break;
slouken@2313
   421
            case VK_RETURN:
slouken@2313
   422
                if (lParam & EXTENDED_KEYMASK)
slouken@2313
   423
                    wParam = VK_ENTER;
slouken@2313
   424
                break;
slouken@1895
   425
            }
slouken@2710
   426
slouken@1895
   427
            /* Windows only reports keyup for print screen */
slouken@1895
   428
            if (wParam == VK_SNAPSHOT
slouken@2308
   429
                && SDL_GetKeyboardState(NULL)[SDL_SCANCODE_PRINTSCREEN] ==
slouken@2308
   430
                SDL_RELEASED) {
slouken@1895
   431
                SDL_SendKeyboardKey(index, SDL_PRESSED,
slouken@2308
   432
                                    data->videodata->key_layout[wParam]);
slouken@1895
   433
            }
slouken@2308
   434
            if (wParam < 256) {
slouken@2308
   435
                SDL_SendKeyboardKey(index, SDL_RELEASED,
slouken@2308
   436
                                    data->videodata->key_layout[wParam]);
slouken@2308
   437
            }
slouken@1895
   438
        }
slouken@1895
   439
        return (0);
slouken@1895
   440
slouken@2309
   441
    case WM_CHAR:
slouken@2309
   442
        {
slouken@2309
   443
            char text[4];
slouken@2309
   444
slouken@2309
   445
            /* Convert to UTF-8 and send it on... */
slouken@2309
   446
            if (wParam <= 0x7F) {
slouken@2309
   447
                text[0] = (char) wParam;
slouken@2309
   448
                text[1] = '\0';
slouken@2309
   449
            } else if (wParam <= 0x7FF) {
slouken@2309
   450
                text[0] = 0xC0 | (char) ((wParam >> 6) & 0x1F);
slouken@2309
   451
                text[1] = 0x80 | (char) (wParam & 0x3F);
slouken@2309
   452
                text[2] = '\0';
slouken@2309
   453
            } else {
slouken@2309
   454
                text[0] = 0xE0 | (char) ((wParam >> 12) & 0x0F);
slouken@2309
   455
                text[1] = 0x80 | (char) ((wParam >> 6) & 0x3F);
slouken@2309
   456
                text[2] = 0x80 | (char) (wParam & 0x3F);
slouken@2309
   457
                text[3] = '\0';
slouken@2309
   458
            }
slouken@2309
   459
            SDL_SendKeyboardText(data->videodata->keyboard, text);
slouken@2309
   460
        }
slouken@2309
   461
        return (0);
slouken@2309
   462
slouken@2311
   463
    case WM_INPUTLANGCHANGE:
slouken@2311
   464
        {
slouken@2311
   465
            WIN_UpdateKeymap(data->videodata->keyboard);
slouken@2311
   466
        }
slouken@2311
   467
        return (1);
slouken@2311
   468
slouken@1895
   469
    case WM_GETMINMAXINFO:
slouken@1895
   470
        {
slouken@1895
   471
            MINMAXINFO *info;
slouken@1895
   472
            RECT size;
slouken@1895
   473
            int x, y;
slouken@1895
   474
            int w, h;
slouken@1895
   475
            int style;
slouken@3168
   476
            BOOL menu;
slouken@1895
   477
slouken@1895
   478
            /* If we allow resizing, let the resize happen naturally */
slouken@1895
   479
            if (SDL_GetWindowFlags(data->windowID) & SDL_WINDOW_RESIZABLE) {
slouken@1895
   480
                return (0);
slouken@1895
   481
            }
slouken@1895
   482
slouken@1895
   483
            /* Get the current position of our window */
slouken@1895
   484
            GetWindowRect(hwnd, &size);
slouken@1895
   485
            x = size.left;
slouken@1895
   486
            y = size.top;
slouken@1895
   487
slouken@1895
   488
            /* Calculate current size of our window */
slouken@1895
   489
            SDL_GetWindowSize(data->windowID, &w, &h);
slouken@1895
   490
            size.top = 0;
slouken@1895
   491
            size.left = 0;
slouken@1895
   492
            size.bottom = h;
slouken@1895
   493
            size.right = w;
slouken@1895
   494
slouken@3168
   495
slouken@3168
   496
            style = GetWindowLong(hwnd, GWL_STYLE);
slouken@3168
   497
#ifdef _WIN32_WCE
slouken@3168
   498
            menu = FALSE;
slouken@3168
   499
#else
slouken@1895
   500
            /* DJM - according to the docs for GetMenu(), the
slouken@1895
   501
               return value is undefined if hwnd is a child window.
slouken@1895
   502
               Aparently it's too difficult for MS to check
slouken@1895
   503
               inside their function, so I have to do it here.
slouken@1895
   504
             */
slouken@3168
   505
            menu = (style & WS_CHILDWINDOW) ? FALSE : (GetMenu(hwnd) != NULL);
slouken@3168
   506
#endif
slouken@3168
   507
            AdjustWindowRectEx(&size, style, menu, 0);
slouken@1895
   508
            w = size.right - size.left;
slouken@1895
   509
            h = size.bottom - size.top;
slouken@1895
   510
slouken@1895
   511
            /* Fix our size to the current size */
slouken@1895
   512
            info = (MINMAXINFO *) lParam;
slouken@1895
   513
            info->ptMaxSize.x = w;
slouken@1895
   514
            info->ptMaxSize.y = h;
slouken@1895
   515
            info->ptMaxPosition.x = x;
slouken@1895
   516
            info->ptMaxPosition.y = y;
slouken@1895
   517
            info->ptMinTrackSize.x = w;
slouken@1895
   518
            info->ptMinTrackSize.y = h;
slouken@1895
   519
            info->ptMaxTrackSize.x = w;
slouken@1895
   520
            info->ptMaxTrackSize.y = h;
slouken@1895
   521
        }
slouken@1895
   522
        return (0);
slouken@1895
   523
slouken@1895
   524
    case WM_WINDOWPOSCHANGED:
slouken@1895
   525
        {
slouken@1895
   526
            RECT rect;
slouken@1895
   527
            int x, y;
slouken@1895
   528
            int w, h;
slouken@1895
   529
            Uint32 window_flags;
slouken@1895
   530
slouken@3256
   531
            if (!GetClientRect(hwnd, &rect) ||
slouken@3256
   532
                (rect.right == rect.left && rect.bottom == rect.top)) {
slouken@3256
   533
                break;
slouken@3256
   534
            }
slouken@1895
   535
            ClientToScreen(hwnd, (LPPOINT) & rect);
slouken@1895
   536
            ClientToScreen(hwnd, (LPPOINT) & rect + 1);
slouken@1895
   537
slouken@1895
   538
            window_flags = SDL_GetWindowFlags(data->windowID);
slouken@1895
   539
            if ((window_flags & SDL_WINDOW_INPUT_GRABBED) &&
slouken@1895
   540
                (window_flags & SDL_WINDOW_INPUT_FOCUS)) {
slouken@1895
   541
                ClipCursor(&rect);
slouken@1895
   542
            }
slouken@1895
   543
slouken@1895
   544
            x = rect.left;
slouken@1895
   545
            y = rect.top;
slouken@1895
   546
            SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_MOVED, x, y);
slouken@1895
   547
slouken@1895
   548
            w = rect.right - rect.left;
slouken@1895
   549
            h = rect.bottom - rect.top;
slouken@1895
   550
            SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_RESIZED, w,
slouken@1895
   551
                                h);
slouken@1895
   552
        }
slouken@1895
   553
        break;
slouken@1895
   554
slouken@1895
   555
    case WM_SETCURSOR:
slouken@1895
   556
        {
slouken@3076
   557
            Uint16 hittest;
slouken@1895
   558
slouken@3076
   559
            hittest = LOWORD(lParam);
slouken@3076
   560
            if (hittest == HTCLIENT) {
slouken@3076
   561
                /* FIXME: Implement the cursor API */
slouken@3076
   562
                static HCURSOR cursor;
slouken@3076
   563
                if (!cursor) {
slouken@3076
   564
                    cursor = LoadCursor(NULL, IDC_ARROW);
slouken@3076
   565
                }
slouken@3076
   566
                SetCursor(cursor);
slouken@3076
   567
                return (TRUE);
slouken@3076
   568
            }
slouken@1895
   569
        }
slouken@1895
   570
        break;
slouken@1895
   571
slouken@1895
   572
        /* We are about to get palette focus! */
slouken@1895
   573
    case WM_QUERYNEWPALETTE:
slouken@1895
   574
        {
slouken@1895
   575
            /*
slouken@1895
   576
               WIN_RealizePalette(current_video);
slouken@1895
   577
               return (TRUE);
slouken@1895
   578
             */
slouken@1895
   579
        }
slouken@1895
   580
        break;
slouken@1895
   581
slouken@1895
   582
        /* Another application changed the palette */
slouken@1895
   583
    case WM_PALETTECHANGED:
slouken@1895
   584
        {
slouken@1895
   585
            /*
slouken@1895
   586
               WIN_PaletteChanged(current_video, (HWND) wParam);
slouken@1895
   587
             */
slouken@1895
   588
        }
slouken@1895
   589
        break;
slouken@1895
   590
slouken@1895
   591
        /* We were occluded, refresh our display */
slouken@1895
   592
    case WM_PAINT:
slouken@1895
   593
        {
slouken@1895
   594
            RECT rect;
slouken@1895
   595
            if (GetUpdateRect(hwnd, &rect, FALSE)) {
slouken@1895
   596
                ValidateRect(hwnd, &rect);
slouken@1895
   597
                SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_EXPOSED,
slouken@1895
   598
                                    0, 0);
slouken@1895
   599
            }
slouken@1895
   600
        }
slouken@1895
   601
        return (0);
slouken@1895
   602
slouken@3095
   603
        /* If this isn't our window, we don't need to repaint the frame.
slouken@3095
   604
           This fixes a reentrancy issue that can cause stack overflows with foreign windows.
slouken@3095
   605
           3/21/09 Mason Wheeler */
slouken@3095
   606
    case WM_NCPAINT:
slouken@3095
   607
        {
slouken@3102
   608
            if (SDL_GetWindowFlags(data->windowID) & SDL_WINDOW_FOREIGN) {
slouken@3139
   609
                return (0);
slouken@3095
   610
            }
slouken@3095
   611
            break;
slouken@3095
   612
        }
slouken@3095
   613
slouken@1895
   614
        /* We'll do our own drawing, prevent flicker */
slouken@1895
   615
    case WM_ERASEBKGND:
slouken@1895
   616
        {
slouken@1895
   617
        }
slouken@1895
   618
        return (1);
slouken@1895
   619
slouken@1895
   620
    case WM_SYSCOMMAND:
slouken@1895
   621
        {
slouken@1895
   622
            /* Don't start the screensaver or blank the monitor in fullscreen apps */
slouken@1895
   623
            if ((wParam & 0xFFF0) == SC_SCREENSAVE ||
slouken@1895
   624
                (wParam & 0xFFF0) == SC_MONITORPOWER) {
slouken@3032
   625
                if (SDL_GetVideoDevice()->suspend_screensaver) {
slouken@1895
   626
                    return (0);
slouken@1895
   627
                }
slouken@1895
   628
            }
slouken@1895
   629
        }
slouken@1895
   630
        break;
slouken@1895
   631
slouken@1895
   632
    case WM_CLOSE:
slouken@1895
   633
        {
slouken@1895
   634
            SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_CLOSE, 0, 0);
slouken@1895
   635
        }
slouken@1895
   636
        return (0);
slouken@1895
   637
    }
slouken@1895
   638
    return CallWindowProc(data->wndproc, hwnd, msg, wParam, lParam);
slouken@1895
   639
}
slouken@1895
   640
slouken@1895
   641
void
slouken@1895
   642
WIN_PumpEvents(_THIS)
slouken@1895
   643
{
slouken@1895
   644
    MSG msg;
slouken@1895
   645
    while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
slouken@1895
   646
        TranslateMessage(&msg);
slouken@1895
   647
        DispatchMessage(&msg);
slouken@1895
   648
    }
slouken@1895
   649
}
slouken@1895
   650
slouken@1895
   651
static int app_registered = 0;
slouken@1895
   652
LPTSTR SDL_Appname = NULL;
slouken@1895
   653
Uint32 SDL_Appstyle = 0;
slouken@1895
   654
HINSTANCE SDL_Instance = NULL;
slouken@1895
   655
slouken@1895
   656
/* Register the class for this application */
slouken@1895
   657
int
slouken@1895
   658
SDL_RegisterApp(char *name, Uint32 style, void *hInst)
slouken@1895
   659
{
slouken@1895
   660
    WNDCLASS class;
slouken@1895
   661
slouken@1895
   662
    /* Only do this once... */
slouken@1895
   663
    if (app_registered) {
slouken@1895
   664
        ++app_registered;
slouken@1895
   665
        return (0);
slouken@1895
   666
    }
slouken@1895
   667
    if (!name && !SDL_Appname) {
slouken@1895
   668
        name = "SDL_app";
slouken@1895
   669
        SDL_Appstyle = (CS_BYTEALIGNCLIENT | CS_OWNDC);
slouken@1895
   670
        SDL_Instance = hInst ? hInst : GetModuleHandle(NULL);
slouken@1895
   671
    }
slouken@1895
   672
slouken@1895
   673
    if (name) {
slouken@1895
   674
        SDL_Appname = WIN_UTF8ToString(name);
slouken@1895
   675
        SDL_Appstyle = style;
slouken@1895
   676
        SDL_Instance = hInst ? hInst : GetModuleHandle(NULL);
slouken@1895
   677
    }
slouken@1895
   678
slouken@1895
   679
    /* Register the application class */
slouken@1895
   680
    class.hCursor = NULL;
slouken@2710
   681
    class.hIcon =
slouken@2710
   682
        LoadImage(SDL_Instance, SDL_Appname, IMAGE_ICON, 0, 0,
slouken@2710
   683
                  LR_DEFAULTCOLOR);
slouken@1895
   684
    class.lpszMenuName = NULL;
slouken@1895
   685
    class.lpszClassName = SDL_Appname;
slouken@1895
   686
    class.hbrBackground = NULL;
slouken@1895
   687
    class.hInstance = SDL_Instance;
slouken@1895
   688
    class.style = SDL_Appstyle;
slouken@1895
   689
    class.lpfnWndProc = DefWindowProc;
slouken@1895
   690
    class.cbWndExtra = 0;
slouken@1895
   691
    class.cbClsExtra = 0;
slouken@1895
   692
    if (!RegisterClass(&class)) {
slouken@1895
   693
        SDL_SetError("Couldn't register application class");
slouken@1895
   694
        return (-1);
slouken@1895
   695
    }
slouken@1895
   696
slouken@1895
   697
    app_registered = 1;
slouken@1895
   698
    return (0);
slouken@1895
   699
}
slouken@1895
   700
slouken@1895
   701
/* Unregisters the windowclass registered in SDL_RegisterApp above. */
slouken@1895
   702
void
slouken@1895
   703
SDL_UnregisterApp()
slouken@1895
   704
{
slouken@1895
   705
    WNDCLASS class;
slouken@1895
   706
slouken@1895
   707
    /* SDL_RegisterApp might not have been called before */
slouken@1895
   708
    if (!app_registered) {
slouken@1895
   709
        return;
slouken@1895
   710
    }
slouken@1895
   711
    --app_registered;
slouken@1895
   712
    if (app_registered == 0) {
slouken@1895
   713
        /* Check for any registered window classes. */
slouken@1895
   714
        if (GetClassInfo(SDL_Instance, SDL_Appname, &class)) {
slouken@1895
   715
            UnregisterClass(SDL_Appname, SDL_Instance);
slouken@1895
   716
        }
slouken@1895
   717
        SDL_free(SDL_Appname);
slouken@1895
   718
        SDL_Appname = NULL;
slouken@1895
   719
    }
slouken@1895
   720
}
slouken@1895
   721
slouken@1895
   722
/* Sets an error message based on GetLastError() */
slouken@1895
   723
void
slouken@1895
   724
WIN_SetError(const char *prefix)
slouken@1895
   725
{
slouken@1895
   726
    TCHAR buffer[1024];
slouken@1895
   727
    char *message;
slouken@2710
   728
    FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(), 0,
slouken@2710
   729
                  buffer, SDL_arraysize(buffer), NULL);
slouken@1895
   730
    message = WIN_StringToUTF8(buffer);
slouken@1895
   731
    SDL_SetError("%s%s%s", prefix ? prefix : "", prefix ? ":" : "", message);
slouken@1895
   732
    SDL_free(message);
slouken@1895
   733
}
slouken@1895
   734
slouken@1895
   735
/* vi: set ts=4 sw=4 expandtab: */