src/video/windows/SDL_windowsevents.c
author Jørgen P. Tjernø <jorgen@valvesoftware.com>
Wed, 05 Jun 2013 12:00:18 -0700
changeset 7276 37814e7eeff3
parent 7275 0a6b3b998814
child 7295 737cc5bad795
permissions -rw-r--r--
Win32: Fix issue with SetCapture & negative values.

This fixes an issue where we were using the wrong macros to extract the position from WM_MOUSEMOVE, so negative values were behaving incorrectly.
These would be generated in multimon situations, or if you use SetCapture.

Fixes http://bugzilla.libsdl.org/show_bug.cgi?id=1175
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_config.h"
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#if SDL_VIDEO_DRIVER_WINDOWS
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#include "SDL_windowsvideo.h"
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#include "SDL_windowsshape.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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#include "../../events/SDL_touch_c.h"
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#include "../../events/scancodes_windows.h"
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/* Dropfile support */
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#include <shellapi.h>
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/* For GET_X_LPARAM, GET_Y_LPARAM. */
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#include <windowsx.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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#ifndef VK_OEM_NEC_EQUAL
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#define VK_OEM_NEC_EQUAL 0x92
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#endif
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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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#ifndef WM_TOUCH
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#define WM_TOUCH 0x0240
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#endif
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static SDL_Scancode
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WindowsScanCodeToSDLScanCode( LPARAM lParam, WPARAM wParam )
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{
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    SDL_Scancode code;
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    char bIsExtended;
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    int nScanCode = ( lParam >> 16 ) & 0xFF;
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    /* 0x45 here to work around both pause and numlock sharing the same scancode, so use the VK key to tell them apart */
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    if ( nScanCode == 0 || nScanCode == 0x45 )
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    {
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        switch( wParam )
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        {
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        case VK_CLEAR: return SDL_SCANCODE_CLEAR;
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        case VK_MODECHANGE: return SDL_SCANCODE_MODE;
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        case VK_SELECT: return SDL_SCANCODE_SELECT;
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        case VK_EXECUTE: return SDL_SCANCODE_EXECUTE;
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        case VK_HELP: return SDL_SCANCODE_HELP;
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        case VK_PAUSE: return SDL_SCANCODE_PAUSE;
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        case VK_NUMLOCK: return SDL_SCANCODE_NUMLOCKCLEAR;
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        case VK_F13: return SDL_SCANCODE_F13;
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        case VK_F14: return SDL_SCANCODE_F14;
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        case VK_F15: return SDL_SCANCODE_F15;
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        case VK_F16: return SDL_SCANCODE_F16;
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        case VK_F17: return SDL_SCANCODE_F17;
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        case VK_F18: return SDL_SCANCODE_F18;
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        case VK_F19: return SDL_SCANCODE_F19;
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        case VK_F20: return SDL_SCANCODE_F20;
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        case VK_F21: return SDL_SCANCODE_F21;
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        case VK_F22: return SDL_SCANCODE_F22;
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        case VK_F23: return SDL_SCANCODE_F23;
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        case VK_F24: return SDL_SCANCODE_F24;
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        case VK_OEM_NEC_EQUAL: return SDL_SCANCODE_KP_EQUALS;
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        case VK_BROWSER_BACK: return SDL_SCANCODE_AC_BACK;
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        case VK_BROWSER_FORWARD: return SDL_SCANCODE_AC_FORWARD;
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        case VK_BROWSER_REFRESH: return SDL_SCANCODE_AC_REFRESH;
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        case VK_BROWSER_STOP: return SDL_SCANCODE_AC_STOP;
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        case VK_BROWSER_SEARCH: return SDL_SCANCODE_AC_SEARCH;
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        case VK_BROWSER_FAVORITES: return SDL_SCANCODE_AC_BOOKMARKS;
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        case VK_BROWSER_HOME: return SDL_SCANCODE_AC_HOME;
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        case VK_VOLUME_MUTE: return SDL_SCANCODE_AUDIOMUTE;
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        case VK_VOLUME_DOWN: return SDL_SCANCODE_VOLUMEDOWN;
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        case VK_VOLUME_UP: return SDL_SCANCODE_VOLUMEUP;
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        case VK_MEDIA_NEXT_TRACK: return SDL_SCANCODE_AUDIONEXT;
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        case VK_MEDIA_PREV_TRACK: return SDL_SCANCODE_AUDIOPREV;
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        case VK_MEDIA_STOP: return SDL_SCANCODE_AUDIOSTOP;
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        case VK_MEDIA_PLAY_PAUSE: return SDL_SCANCODE_AUDIOPLAY;
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        case VK_LAUNCH_MAIL: return SDL_SCANCODE_MAIL;
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        case VK_LAUNCH_MEDIA_SELECT: return SDL_SCANCODE_MEDIASELECT;
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        case VK_OEM_102: return SDL_SCANCODE_NONUSBACKSLASH;
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        case VK_ATTN: return SDL_SCANCODE_SYSREQ;
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        case VK_CRSEL: return SDL_SCANCODE_CRSEL;
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        case VK_EXSEL: return SDL_SCANCODE_EXSEL;
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        case VK_OEM_CLEAR: return SDL_SCANCODE_CLEAR;
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        case VK_LAUNCH_APP1: return SDL_SCANCODE_APP1;
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        case VK_LAUNCH_APP2: return SDL_SCANCODE_APP2;
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        default: return SDL_SCANCODE_UNKNOWN;
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        }
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    }
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    if ( nScanCode > 127 )
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        return SDL_SCANCODE_UNKNOWN;
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    code = windows_scancode_table[nScanCode];
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    bIsExtended = ( lParam & ( 1 << 24 ) ) != 0;
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    if ( !bIsExtended )
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    {
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        switch ( code )
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        {
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        case SDL_SCANCODE_HOME:
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            return SDL_SCANCODE_KP_7;
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        case SDL_SCANCODE_UP:
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            return SDL_SCANCODE_KP_8;
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        case SDL_SCANCODE_PAGEUP:
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            return SDL_SCANCODE_KP_9;
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        case SDL_SCANCODE_LEFT:
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            return SDL_SCANCODE_KP_4;
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        case SDL_SCANCODE_RIGHT:
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            return SDL_SCANCODE_KP_6;
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        case SDL_SCANCODE_END:
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            return SDL_SCANCODE_KP_1;
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        case SDL_SCANCODE_DOWN:
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            return SDL_SCANCODE_KP_2;
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        case SDL_SCANCODE_PAGEDOWN:
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            return SDL_SCANCODE_KP_3;
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        case SDL_SCANCODE_INSERT:
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            return SDL_SCANCODE_KP_0;
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        case SDL_SCANCODE_DELETE:
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            return SDL_SCANCODE_KP_PERIOD;
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        case SDL_SCANCODE_PRINTSCREEN:
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            return SDL_SCANCODE_KP_MULTIPLY;
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        default:
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            break;
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        }
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    }
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    else
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    {
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        switch ( code )
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        {
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        case SDL_SCANCODE_RETURN:
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            return SDL_SCANCODE_KP_ENTER;
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        case SDL_SCANCODE_LALT:
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            return SDL_SCANCODE_RALT;
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        case SDL_SCANCODE_LCTRL:
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            return SDL_SCANCODE_RCTRL;
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        case SDL_SCANCODE_SLASH:
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            return SDL_SCANCODE_KP_DIVIDE;
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        case SDL_SCANCODE_CAPSLOCK:
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            return SDL_SCANCODE_KP_PLUS;
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        default:
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            break;
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        }
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    }
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    return code;
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}
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void
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WIN_CheckWParamMouseButton( SDL_bool bwParamMousePressed, SDL_bool bSDLMousePressed, SDL_WindowData *data, Uint8 button )
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{
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    if ( bwParamMousePressed && !bSDLMousePressed )
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    {
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        SDL_SendMouseButton(data->window, 0, SDL_PRESSED, button);
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    }
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    else if ( !bwParamMousePressed && bSDLMousePressed )
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    {
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        SDL_SendMouseButton(data->window, 0, SDL_RELEASED, button);
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    }
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}
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/*
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* Some windows systems fail to send a WM_LBUTTONDOWN sometimes, but each mouse move contains the current button state also
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*  so this funciton reconciles our view of the world with the current buttons reported by windows
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*/
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void
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WIN_CheckWParamMouseButtons( WPARAM wParam, SDL_WindowData *data )
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{
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    if ( wParam != data->mouse_button_flags )
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    {
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        Uint32 mouseFlags = SDL_GetMouseState( NULL, NULL );
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        WIN_CheckWParamMouseButton(  (wParam & MK_LBUTTON), (mouseFlags & SDL_BUTTON_LMASK), data, SDL_BUTTON_LEFT );
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        WIN_CheckWParamMouseButton(  (wParam & MK_MBUTTON), (mouseFlags & SDL_BUTTON_MMASK), data, SDL_BUTTON_MIDDLE );
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        WIN_CheckWParamMouseButton(  (wParam & MK_RBUTTON), (mouseFlags & SDL_BUTTON_RMASK), data, SDL_BUTTON_RIGHT );
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        WIN_CheckWParamMouseButton(  (wParam & MK_XBUTTON1), (mouseFlags & SDL_BUTTON_X1MASK), data, SDL_BUTTON_X1 );
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        WIN_CheckWParamMouseButton(  (wParam & MK_XBUTTON2), (mouseFlags & SDL_BUTTON_X2MASK), data, SDL_BUTTON_X2 );
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        data->mouse_button_flags = wParam;
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    }
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}
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void
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WIN_CheckRawMouseButtons( ULONG rawButtons, SDL_WindowData *data )
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{
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    if ( rawButtons != data->mouse_button_flags )
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    {
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        Uint32 mouseFlags = SDL_GetMouseState( NULL, NULL );
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        if ( (rawButtons & RI_MOUSE_BUTTON_1_DOWN) )
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            WIN_CheckWParamMouseButton(  (rawButtons & RI_MOUSE_BUTTON_1_DOWN), (mouseFlags & SDL_BUTTON_LMASK), data, SDL_BUTTON_LEFT );
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        if ( (rawButtons & RI_MOUSE_BUTTON_1_UP) )
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            WIN_CheckWParamMouseButton(  !(rawButtons & RI_MOUSE_BUTTON_1_UP), (mouseFlags & SDL_BUTTON_LMASK), data, SDL_BUTTON_LEFT );
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        if ( (rawButtons & RI_MOUSE_BUTTON_2_DOWN) )
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            WIN_CheckWParamMouseButton(  (rawButtons & RI_MOUSE_BUTTON_2_DOWN), (mouseFlags & SDL_BUTTON_RMASK), data, SDL_BUTTON_RIGHT );
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        if ( (rawButtons & RI_MOUSE_BUTTON_2_UP) )
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            WIN_CheckWParamMouseButton(  !(rawButtons & RI_MOUSE_BUTTON_2_UP), (mouseFlags & SDL_BUTTON_RMASK), data, SDL_BUTTON_RIGHT );
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        if ( (rawButtons & RI_MOUSE_BUTTON_3_DOWN) )
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            WIN_CheckWParamMouseButton(  (rawButtons & RI_MOUSE_BUTTON_3_DOWN), (mouseFlags & SDL_BUTTON_MMASK), data, SDL_BUTTON_MIDDLE );
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        if ( (rawButtons & RI_MOUSE_BUTTON_3_UP) )
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            WIN_CheckWParamMouseButton(  !(rawButtons & RI_MOUSE_BUTTON_3_UP), (mouseFlags & SDL_BUTTON_MMASK), data, SDL_BUTTON_MIDDLE );
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        if ( (rawButtons & RI_MOUSE_BUTTON_4_DOWN) )
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            WIN_CheckWParamMouseButton(  (rawButtons & RI_MOUSE_BUTTON_4_DOWN), (mouseFlags & SDL_BUTTON_X1MASK), data, SDL_BUTTON_X1 );
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        if ( (rawButtons & RI_MOUSE_BUTTON_4_UP) )
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            WIN_CheckWParamMouseButton(  !(rawButtons & RI_MOUSE_BUTTON_4_UP), (mouseFlags & SDL_BUTTON_X1MASK), data, SDL_BUTTON_X1 );
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        if ( (rawButtons & RI_MOUSE_BUTTON_5_DOWN) )
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            WIN_CheckWParamMouseButton(  (rawButtons & RI_MOUSE_BUTTON_5_DOWN), (mouseFlags & SDL_BUTTON_X2MASK), data, SDL_BUTTON_X2 );
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        if ( (rawButtons & RI_MOUSE_BUTTON_5_UP) )
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            WIN_CheckWParamMouseButton(  !(rawButtons & RI_MOUSE_BUTTON_5_UP), (mouseFlags & SDL_BUTTON_X2MASK), data, SDL_BUTTON_X2 );
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        data->mouse_button_flags = rawButtons;
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    }
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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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   262
    SDL_WindowData *data;
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    LRESULT returnCode = -1;
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    /* Send a SDL_SYSWMEVENT if the application wants them */
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    if (SDL_GetEventState(SDL_SYSWMEVENT) == SDL_ENABLE) {
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        SDL_SysWMmsg wmmsg;
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   269
        SDL_VERSION(&wmmsg.version);
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        wmmsg.subsystem = SDL_SYSWM_WINDOWS;
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        wmmsg.msg.win.hwnd = hwnd;
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        wmmsg.msg.win.msg = msg;
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        wmmsg.msg.win.wParam = wParam;
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        wmmsg.msg.win.lParam = lParam;
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        SDL_SendSysWMEvent(&wmmsg);
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    }
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   278
    /* Get the window data for the window */
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   279
    data = (SDL_WindowData *) GetProp(hwnd, TEXT("SDL_WindowData"));
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   280
    if (!data) {
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   281
        return CallWindowProc(DefWindowProc, hwnd, msg, wParam, lParam);
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   282
    }
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   284
#ifdef WMMSG_DEBUG
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    {
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   286
        FILE *log = fopen("wmmsg.txt", "a");
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   287
        fprintf(log, "Received windows message: %p ", hwnd);
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   288
        if (msg > MAX_WMMSG) {
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   289
            fprintf(log, "%d", msg);
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   290
        } else {
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   291
            fprintf(log, "%s", wmtab[msg]);
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   292
        }
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   293
        fprintf(log, " -- 0x%X, 0x%X\n", wParam, lParam);
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   294
        fclose(log);
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   295
    }
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#endif
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   297
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   298
    if (IME_HandleMessage(hwnd, msg, wParam, &lParam, data->videodata))
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   299
        return 0;
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   300
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   301
    switch (msg) {
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   302
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   303
    case WM_SHOWWINDOW:
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   304
        {
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   305
            if (wParam) {
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                SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
   307
            } else {
slouken@3685
   308
                SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
   309
            }
slouken@1895
   310
        }
slouken@1895
   311
        break;
slouken@1895
   312
slouken@1895
   313
    case WM_ACTIVATE:
slouken@1895
   314
        {
slouken@1895
   315
            BOOL minimized;
slouken@1895
   316
slouken@1895
   317
            minimized = HIWORD(wParam);
slouken@1895
   318
            if (!minimized && (LOWORD(wParam) != WA_INACTIVE)) {
slouken@7191
   319
                Uint32 mouseFlags;
slouken@7191
   320
                SHORT keyState;
slouken@6945
   321
slouken@3685
   322
                SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@3685
   323
                SDL_SendWindowEvent(data->window,
slouken@1895
   324
                                    SDL_WINDOWEVENT_RESTORED, 0, 0);
slouken@1895
   325
                if (IsZoomed(hwnd)) {
slouken@3685
   326
                    SDL_SendWindowEvent(data->window,
slouken@1895
   327
                                        SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
slouken@1895
   328
                }
slouken@4465
   329
                if (SDL_GetKeyboardFocus() != data->window) {
slouken@4465
   330
                    SDL_SetKeyboardFocus(data->window);
slouken@1895
   331
                }
slouken@7191
   332
                /* mouse buttons may have changed state here, we need
slouken@7191
   333
                to resync them, but we will get a WM_MOUSEMOVE right away which will fix
slouken@7191
   334
                things up if in non raw mode also
slouken@7191
   335
                */
slouken@7191
   336
                mouseFlags = SDL_GetMouseState( NULL, NULL );
slouken@6945
   337
slouken@7191
   338
                keyState = GetAsyncKeyState( VK_LBUTTON );
slouken@7191
   339
                WIN_CheckWParamMouseButton( ( keyState & 0x8000 ), (mouseFlags & SDL_BUTTON_LMASK), data, SDL_BUTTON_LEFT );
slouken@7191
   340
                keyState = GetAsyncKeyState( VK_RBUTTON );
slouken@7191
   341
                WIN_CheckWParamMouseButton( ( keyState & 0x8000 ), (mouseFlags & SDL_BUTTON_RMASK), data, SDL_BUTTON_RIGHT );
slouken@7191
   342
                keyState = GetAsyncKeyState( VK_MBUTTON );
slouken@7191
   343
                WIN_CheckWParamMouseButton( ( keyState & 0x8000 ), (mouseFlags & SDL_BUTTON_MMASK), data, SDL_BUTTON_MIDDLE );
slouken@7191
   344
                keyState = GetAsyncKeyState( VK_XBUTTON1 );
slouken@7191
   345
                WIN_CheckWParamMouseButton( ( keyState & 0x8000 ), (mouseFlags & SDL_BUTTON_X1MASK), data, SDL_BUTTON_X1 );
slouken@7191
   346
                keyState = GetAsyncKeyState( VK_XBUTTON2 );
slouken@7191
   347
                WIN_CheckWParamMouseButton( ( keyState & 0x8000 ), (mouseFlags & SDL_BUTTON_X2MASK), data, SDL_BUTTON_X2 );
slouken@7191
   348
                data->mouse_button_flags = 0;
slouken@6350
   349
slouken@7191
   350
                if(SDL_GetMouse()->relative_mode) {
slouken@7191
   351
                    LONG cx, cy;
slouken@7191
   352
                    RECT rect;
slouken@7191
   353
                    GetWindowRect(hwnd, &rect);
slouken@6350
   354
slouken@7191
   355
                    cx = (rect.left + rect.right) / 2;
slouken@7191
   356
                    cy = (rect.top + rect.bottom) / 2;
slouken@6350
   357
slouken@7191
   358
                    /* Make an absurdly small clip rect */
slouken@7191
   359
                    rect.left = cx-1;
slouken@7191
   360
                    rect.right = cx+1;
slouken@7191
   361
                    rect.top = cy-1;
slouken@7191
   362
                    rect.bottom = cy+1;
slouken@6350
   363
slouken@7191
   364
                    ClipCursor(&rect);
slouken@7191
   365
                }
slouken@6350
   366
slouken@4504
   367
                /*
slouken@4504
   368
                 * FIXME: Update keyboard state
slouken@4504
   369
                 */
slouken@4504
   370
                WIN_CheckClipboardUpdate(data->videodata);
slouken@1895
   371
            } else {
slouken@4465
   372
                if (SDL_GetKeyboardFocus() == data->window) {
slouken@4465
   373
                    SDL_SetKeyboardFocus(NULL);
slouken@1895
   374
                }
slouken@1895
   375
                if (minimized) {
slouken@3685
   376
                    SDL_SendWindowEvent(data->window,
slouken@1895
   377
                                        SDL_WINDOWEVENT_MINIMIZED, 0, 0);
slouken@1895
   378
                }
slouken@1895
   379
            }
slouken@1895
   380
        }
slouken@3566
   381
        returnCode = 0;
slouken@3566
   382
        break;
slouken@1895
   383
slouken@7191
   384
    case WM_MOUSEMOVE:
slouken@7191
   385
        if( !SDL_GetMouse()->relative_mode )
jorgen@7276
   386
            SDL_SendMouseMotion(data->window, 0, 0, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
slouken@7191
   387
        /* don't break here, fall through to check the wParam like the button presses */
slouken@7191
   388
    case WM_LBUTTONUP:
slouken@7191
   389
    case WM_RBUTTONUP:
slouken@7191
   390
    case WM_MBUTTONUP:
slouken@7191
   391
    case WM_XBUTTONUP:
slouken@7191
   392
    case WM_LBUTTONDOWN:
slouken@7191
   393
    case WM_RBUTTONDOWN:
slouken@7191
   394
    case WM_MBUTTONDOWN:
slouken@7191
   395
    case WM_XBUTTONDOWN:
slouken@7191
   396
        if( !SDL_GetMouse()->relative_mode )
slouken@7191
   397
            WIN_CheckWParamMouseButtons( wParam, data );
slouken@7191
   398
        break;
slouken@3139
   399
slouken@7191
   400
    case WM_INPUT:
slouken@7191
   401
    {
slouken@7191
   402
        HRAWINPUT hRawInput = (HRAWINPUT)lParam;
slouken@7191
   403
        RAWINPUT inp;
slouken@7191
   404
        UINT size = sizeof(inp);
slouken@6782
   405
slouken@7191
   406
        if(!SDL_GetMouse()->relative_mode)
slouken@7191
   407
            break;
slouken@6782
   408
slouken@7191
   409
        GetRawInputData(hRawInput, RID_INPUT, &inp, &size, sizeof(RAWINPUTHEADER));
slouken@6350
   410
slouken@7191
   411
        /* Mouse data */
slouken@7191
   412
        if(inp.header.dwType == RIM_TYPEMOUSE)
slouken@7191
   413
        {
slouken@7191
   414
            RAWMOUSE* mouse = &inp.data.mouse;
slouken@6350
   415
slouken@7191
   416
            if((mouse->usFlags & 0x01) == MOUSE_MOVE_RELATIVE)
slouken@7191
   417
            {
slouken@7191
   418
                SDL_SendMouseMotion(data->window, 0, 1, (int)mouse->lLastX, (int)mouse->lLastY);
slouken@7191
   419
            }
slouken@7191
   420
            else
slouken@7191
   421
            {
slouken@7191
   422
                /* synthesize relative moves from the abs position */
slouken@7191
   423
                static SDL_Point initialMousePoint;
slouken@7191
   424
                if ( initialMousePoint.x == 0 && initialMousePoint.y == 0 )
slouken@7191
   425
                {
slouken@7191
   426
                    initialMousePoint.x = mouse->lLastX;
slouken@7191
   427
                    initialMousePoint.y = mouse->lLastY;
slouken@7191
   428
                }
slouken@6350
   429
slouken@7191
   430
                SDL_SendMouseMotion(data->window, 0, 1, (int)(mouse->lLastX-initialMousePoint.x), (int)(mouse->lLastY-initialMousePoint.y) );
slouken@6782
   431
slouken@7191
   432
                initialMousePoint.x = mouse->lLastX;
slouken@7191
   433
                initialMousePoint.y = mouse->lLastY;
slouken@7191
   434
            }
slouken@7191
   435
            WIN_CheckRawMouseButtons( mouse->usButtonFlags, data );
slouken@7191
   436
        }
slouken@7191
   437
        break;
slouken@7191
   438
    }
slouken@6350
   439
slouken@5049
   440
    case WM_MOUSEWHEEL:
slouken@5049
   441
        {
slouken@7191
   442
            /* FIXME: This may need to accumulate deltas up to WHEEL_DELTA */
slouken@6861
   443
            short motion = GET_WHEEL_DELTA_WPARAM(wParam) / WHEEL_DELTA;
slouken@5049
   444
slouken@6950
   445
            SDL_SendMouseWheel(data->window, 0, 0, motion);
slouken@5049
   446
            break;
slouken@5049
   447
        }
slouken@5049
   448
slouken@5086
   449
#ifdef WM_MOUSELEAVE
slouken@1895
   450
    case WM_MOUSELEAVE:
jorgen@7275
   451
        if (SDL_GetMouseFocus() == data->window && !SDL_GetMouse()->relative_mode) {
jorgen@7275
   452
            POINT cursorPos;
jorgen@7275
   453
            GetCursorPos(&cursorPos);
jorgen@7275
   454
            ScreenToClient(hwnd, &cursorPos);
jorgen@7275
   455
            SDL_SendMouseMotion(data->window, 0, 0, cursorPos.x, cursorPos.y);
slouken@7191
   456
            SDL_SetMouseFocus(NULL);
slouken@1895
   457
        }
slouken@3566
   458
        returnCode = 0;
slouken@3566
   459
        break;
slouken@5086
   460
#endif /* WM_MOUSELEAVE */
slouken@1895
   461
slouken@1895
   462
    case WM_SYSKEYDOWN:
slouken@1895
   463
    case WM_KEYDOWN:
slouken@1895
   464
        {
slouken@7191
   465
            SDL_Scancode code = WindowsScanCodeToSDLScanCode( lParam, wParam );
slouken@7191
   466
            if ( code != SDL_SCANCODE_UNKNOWN ) {
jorgen@6922
   467
                SDL_SendKeyboardKey(SDL_PRESSED, code );
slouken@2308
   468
            }
slouken@1895
   469
        }
slouken@3566
   470
        returnCode = 0;
slouken@3566
   471
        break;
slouken@1895
   472
slouken@1895
   473
    case WM_SYSKEYUP:
slouken@1895
   474
    case WM_KEYUP:
slouken@1895
   475
        {
slouken@6938
   476
            SDL_Scancode code = WindowsScanCodeToSDLScanCode( lParam, wParam );
slouken@6938
   477
            if ( code != SDL_SCANCODE_UNKNOWN ) {
slouken@6938
   478
                if (code == SDL_SCANCODE_PRINTSCREEN &&
slouken@6938
   479
                    SDL_GetKeyboardState(NULL)[code] == SDL_RELEASED) {
slouken@6938
   480
                    SDL_SendKeyboardKey(SDL_PRESSED, code);
slouken@6938
   481
                }
slouken@6938
   482
                SDL_SendKeyboardKey(SDL_RELEASED, code);
slouken@2308
   483
            }
slouken@1895
   484
        }
slouken@3566
   485
        returnCode = 0;
slouken@3566
   486
        break;
slouken@1895
   487
slouken@2309
   488
    case WM_CHAR:
slouken@2309
   489
        {
slouken@2309
   490
            char text[4];
slouken@2309
   491
slouken@2309
   492
            /* Convert to UTF-8 and send it on... */
slouken@2309
   493
            if (wParam <= 0x7F) {
slouken@2309
   494
                text[0] = (char) wParam;
slouken@2309
   495
                text[1] = '\0';
slouken@2309
   496
            } else if (wParam <= 0x7FF) {
slouken@2309
   497
                text[0] = 0xC0 | (char) ((wParam >> 6) & 0x1F);
slouken@2309
   498
                text[1] = 0x80 | (char) (wParam & 0x3F);
slouken@2309
   499
                text[2] = '\0';
slouken@2309
   500
            } else {
slouken@2309
   501
                text[0] = 0xE0 | (char) ((wParam >> 12) & 0x0F);
slouken@2309
   502
                text[1] = 0x80 | (char) ((wParam >> 6) & 0x3F);
slouken@2309
   503
                text[2] = 0x80 | (char) (wParam & 0x3F);
slouken@2309
   504
                text[3] = '\0';
slouken@2309
   505
            }
slouken@4465
   506
            SDL_SendKeyboardText(text);
slouken@2309
   507
        }
slouken@3566
   508
        returnCode = 0;
slouken@3566
   509
        break;
slouken@2309
   510
slouken@5086
   511
#ifdef WM_INPUTLANGCHANGE
slouken@2311
   512
    case WM_INPUTLANGCHANGE:
slouken@2311
   513
        {
slouken@4465
   514
            WIN_UpdateKeymap();
slouken@2311
   515
        }
slouken@3566
   516
        returnCode = 1;
slouken@3566
   517
        break;
slouken@5086
   518
#endif /* WM_INPUTLANGCHANGE */
slouken@2311
   519
slouken@5086
   520
#ifdef WM_GETMINMAXINFO
slouken@1895
   521
    case WM_GETMINMAXINFO:
slouken@1895
   522
        {
slouken@1895
   523
            MINMAXINFO *info;
slouken@1895
   524
            RECT size;
slouken@1895
   525
            int x, y;
slouken@1895
   526
            int w, h;
stopiccot@6682
   527
            int min_w, min_h;
slouken@6788
   528
            int max_w, max_h;
slouken@1895
   529
            int style;
slouken@3168
   530
            BOOL menu;
slouken@7191
   531
            BOOL constrain_max_size;
slouken@1895
   532
slouken@1895
   533
            /* If we allow resizing, let the resize happen naturally */
stopiccot@6682
   534
            if (SDL_IsShapedWindow(data->window))
eligottlieb@4815
   535
                Win32_ResizeWindowShape(data->window);
slouken@1895
   536
slouken@1895
   537
            /* Get the current position of our window */
slouken@1895
   538
            GetWindowRect(hwnd, &size);
slouken@1895
   539
            x = size.left;
slouken@1895
   540
            y = size.top;
slouken@1895
   541
slouken@1895
   542
            /* Calculate current size of our window */
slouken@3685
   543
            SDL_GetWindowSize(data->window, &w, &h);
stopiccot@6682
   544
            SDL_GetWindowMinimumSize(data->window, &min_w, &min_h);
slouken@6788
   545
            SDL_GetWindowMaximumSize(data->window, &max_w, &max_h);
stopiccot@6682
   546
slouken@7191
   547
            /* Store in min_w and min_h difference between current size and minimal
stopiccot@6682
   548
               size so we don't need to call AdjustWindowRectEx twice */
stopiccot@6682
   549
            min_w -= w;
stopiccot@6682
   550
            min_h -= h;
slouken@6837
   551
            if (max_w && max_h) {
slouken@6837
   552
                max_w -= w;
slouken@6837
   553
                max_h -= h;
slouken@6862
   554
                constrain_max_size = TRUE;
slouken@6862
   555
            } else {
slouken@6862
   556
                constrain_max_size = FALSE;
slouken@6837
   557
            }
stopiccot@6682
   558
slouken@1895
   559
            size.top = 0;
slouken@1895
   560
            size.left = 0;
slouken@1895
   561
            size.bottom = h;
slouken@1895
   562
            size.right = w;
slouken@1895
   563
slouken@3168
   564
            style = GetWindowLong(hwnd, GWL_STYLE);
slouken@1895
   565
            /* DJM - according to the docs for GetMenu(), the
slouken@1895
   566
               return value is undefined if hwnd is a child window.
slouken@1895
   567
               Aparently it's too difficult for MS to check
slouken@1895
   568
               inside their function, so I have to do it here.
slouken@1895
   569
             */
slouken@3168
   570
            menu = (style & WS_CHILDWINDOW) ? FALSE : (GetMenu(hwnd) != NULL);
slouken@3168
   571
            AdjustWindowRectEx(&size, style, menu, 0);
slouken@1895
   572
            w = size.right - size.left;
slouken@1895
   573
            h = size.bottom - size.top;
slouken@1895
   574
slouken@1895
   575
            /* Fix our size to the current size */
slouken@1895
   576
            info = (MINMAXINFO *) lParam;
stopiccot@6682
   577
            if (SDL_GetWindowFlags(data->window) & SDL_WINDOW_RESIZABLE) {
stopiccot@6682
   578
                info->ptMinTrackSize.x = w + min_w;
stopiccot@6682
   579
                info->ptMinTrackSize.y = h + min_h;
slouken@6862
   580
                if (constrain_max_size) {
slouken@6862
   581
                    info->ptMaxTrackSize.x = w + max_w;
slouken@6862
   582
                    info->ptMaxTrackSize.y = h + max_h;
slouken@6862
   583
                }
stopiccot@6682
   584
            } else {
stopiccot@6682
   585
                info->ptMaxSize.x = w;
stopiccot@6682
   586
                info->ptMaxSize.y = h;
stopiccot@6682
   587
                info->ptMaxPosition.x = x;
stopiccot@6682
   588
                info->ptMaxPosition.y = y;
stopiccot@6682
   589
                info->ptMinTrackSize.x = w;
stopiccot@6682
   590
                info->ptMinTrackSize.y = h;
stopiccot@6682
   591
                info->ptMaxTrackSize.x = w;
stopiccot@6682
   592
                info->ptMaxTrackSize.y = h;
stopiccot@6682
   593
            }
slouken@1895
   594
        }
slouken@3566
   595
        returnCode = 0;
slouken@3566
   596
        break;
slouken@5086
   597
#endif /* WM_GETMINMAXINFO */
slouken@1895
   598
slouken@1895
   599
    case WM_WINDOWPOSCHANGED:
slouken@1895
   600
        {
slouken@1895
   601
            RECT rect;
slouken@1895
   602
            int x, y;
slouken@1895
   603
            int w, h;
slouken@1895
   604
            Uint32 window_flags;
slouken@1895
   605
slouken@3256
   606
            if (!GetClientRect(hwnd, &rect) ||
slouken@3256
   607
                (rect.right == rect.left && rect.bottom == rect.top)) {
slouken@3256
   608
                break;
slouken@3256
   609
            }
slouken@1895
   610
            ClientToScreen(hwnd, (LPPOINT) & rect);
slouken@1895
   611
            ClientToScreen(hwnd, (LPPOINT) & rect + 1);
slouken@1895
   612
slouken@3685
   613
            window_flags = SDL_GetWindowFlags(data->window);
slouken@1895
   614
            if ((window_flags & SDL_WINDOW_INPUT_GRABBED) &&
slouken@1895
   615
                (window_flags & SDL_WINDOW_INPUT_FOCUS)) {
slouken@1895
   616
                ClipCursor(&rect);
slouken@1895
   617
            }
slouken@1895
   618
slouken@1895
   619
            x = rect.left;
slouken@1895
   620
            y = rect.top;
slouken@3685
   621
            SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_MOVED, x, y);
slouken@1895
   622
slouken@1895
   623
            w = rect.right - rect.left;
slouken@1895
   624
            h = rect.bottom - rect.top;
slouken@3685
   625
            SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_RESIZED, w,
slouken@1895
   626
                                h);
slouken@1895
   627
        }
slouken@1895
   628
        break;
slouken@1895
   629
slouken@1895
   630
    case WM_SETCURSOR:
slouken@1895
   631
        {
slouken@3076
   632
            Uint16 hittest;
slouken@1895
   633
slouken@3076
   634
            hittest = LOWORD(lParam);
slouken@3076
   635
            if (hittest == HTCLIENT) {
slouken@5421
   636
                SetCursor(SDL_cursor);
slouken@3566
   637
                returnCode = TRUE;
slouken@3076
   638
            }
slouken@1895
   639
        }
slouken@1895
   640
        break;
slouken@1895
   641
slouken@1895
   642
        /* We were occluded, refresh our display */
slouken@1895
   643
    case WM_PAINT:
slouken@1895
   644
        {
slouken@1895
   645
            RECT rect;
slouken@1895
   646
            if (GetUpdateRect(hwnd, &rect, FALSE)) {
slouken@1895
   647
                ValidateRect(hwnd, &rect);
slouken@3685
   648
                SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_EXPOSED,
slouken@1895
   649
                                    0, 0);
slouken@1895
   650
            }
slouken@1895
   651
        }
slouken@3566
   652
        returnCode = 0;
slouken@3566
   653
        break;
slouken@3095
   654
slouken@1895
   655
        /* We'll do our own drawing, prevent flicker */
slouken@1895
   656
    case WM_ERASEBKGND:
slouken@1895
   657
        {
slouken@1895
   658
        }
slouken@1895
   659
        return (1);
slouken@1895
   660
slouken@5086
   661
#if defined(SC_SCREENSAVE) || defined(SC_MONITORPOWER)
slouken@1895
   662
    case WM_SYSCOMMAND:
slouken@1895
   663
        {
slouken@1895
   664
            /* Don't start the screensaver or blank the monitor in fullscreen apps */
slouken@1895
   665
            if ((wParam & 0xFFF0) == SC_SCREENSAVE ||
slouken@1895
   666
                (wParam & 0xFFF0) == SC_MONITORPOWER) {
slouken@3032
   667
                if (SDL_GetVideoDevice()->suspend_screensaver) {
slouken@1895
   668
                    return (0);
slouken@1895
   669
                }
slouken@1895
   670
            }
slouken@1895
   671
        }
slouken@1895
   672
        break;
slouken@5086
   673
#endif /* System has screensaver support */
slouken@1895
   674
slouken@1895
   675
    case WM_CLOSE:
slouken@1895
   676
        {
slouken@3685
   677
            SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_CLOSE, 0, 0);
slouken@1895
   678
        }
slouken@3566
   679
        returnCode = 0;
slouken@3566
   680
        break;
slouken@4919
   681
slouken@7191
   682
    case WM_TOUCH:
slouken@7191
   683
        {
slouken@7191
   684
            UINT i, num_inputs = LOWORD(wParam);
slouken@7191
   685
            PTOUCHINPUT inputs = SDL_stack_alloc(TOUCHINPUT, num_inputs);
slouken@7191
   686
            if (data->videodata->GetTouchInputInfo((HTOUCHINPUT)lParam, num_inputs, inputs, sizeof(TOUCHINPUT))) {
slouken@7191
   687
                RECT rect;
slouken@7191
   688
                float x, y;
slouken@4919
   689
slouken@7191
   690
                if (!GetClientRect(hwnd, &rect) ||
slouken@7191
   691
                    (rect.right == rect.left && rect.bottom == rect.top)) {
slouken@7191
   692
                    break;
slouken@7191
   693
                }
slouken@7191
   694
                ClientToScreen(hwnd, (LPPOINT) & rect);
slouken@7191
   695
                ClientToScreen(hwnd, (LPPOINT) & rect + 1);
slouken@7191
   696
                rect.top *= 100;
slouken@7191
   697
                rect.left *= 100;
slouken@7191
   698
                rect.bottom *= 100;
slouken@7191
   699
                rect.right *= 100;
slouken@4932
   700
slouken@7191
   701
                for (i = 0; i < num_inputs; ++i) {
slouken@7191
   702
                    PTOUCHINPUT input = &inputs[i];
slouken@4919
   703
slouken@7191
   704
                    const SDL_TouchID touchId = (SDL_TouchID)input->hSource;
slouken@7191
   705
                    if (!SDL_GetTouch(touchId)) {
slouken@7191
   706
                        if (SDL_AddTouch(touchId, "") < 0) {
slouken@7191
   707
                            continue;
slouken@7191
   708
                        }
slouken@7191
   709
                    }
slouken@4932
   710
slouken@7191
   711
                    /* Get the normalized coordinates for the window */
slouken@7191
   712
                    x = (float)(input->x - rect.left)/(rect.right - rect.left);
slouken@7191
   713
                    y = (float)(input->y - rect.top)/(rect.bottom - rect.top);
slouken@4932
   714
slouken@7191
   715
                    if (input->dwFlags & TOUCHEVENTF_DOWN) {
slouken@7191
   716
                        SDL_SendTouch(touchId, input->dwID, SDL_TRUE, x, y, 1.0f);
slouken@7191
   717
                    }
slouken@7191
   718
                    if (input->dwFlags & TOUCHEVENTF_MOVE) {
slouken@7191
   719
                        SDL_SendTouchMotion(touchId, input->dwID, x, y, 1.0f);
slouken@7191
   720
                    }
slouken@7191
   721
                    if (input->dwFlags & TOUCHEVENTF_UP) {
slouken@7191
   722
                        SDL_SendTouch(touchId, input->dwID, SDL_FALSE, x, y, 1.0f);
slouken@7191
   723
                    }
slouken@7191
   724
                }
slouken@7191
   725
            }
slouken@7191
   726
            SDL_stack_free(inputs);
slouken@4932
   727
slouken@7191
   728
            data->videodata->CloseTouchInputHandle((HTOUCHINPUT)lParam);
slouken@7191
   729
            return 0;
slouken@7191
   730
        }
slouken@7191
   731
        break;
slouken@6523
   732
slouken@6523
   733
    case WM_DROPFILES:
slouken@6523
   734
        {
slouken@6523
   735
            UINT i;
slouken@6523
   736
            HDROP drop = (HDROP) wParam;
slouken@6523
   737
            UINT count = DragQueryFile(drop, 0xFFFFFFFF, NULL, 0);
slouken@6523
   738
            for (i = 0; i < count; ++i) {
slouken@6523
   739
                UINT size = DragQueryFile(drop, i, NULL, 0) + 1;
slouken@6523
   740
                LPTSTR buffer = SDL_stack_alloc(TCHAR, size);
slouken@6523
   741
                if (buffer) {
slouken@6523
   742
                    if (DragQueryFile(drop, i, buffer, size)) {
slouken@6523
   743
                        char *file = WIN_StringToUTF8(buffer);
slouken@6523
   744
                        SDL_SendDropFile(file);
slouken@6523
   745
                        SDL_free(file);
slouken@6523
   746
                    }
slouken@6523
   747
                    SDL_stack_free(buffer);
slouken@6523
   748
                }
slouken@6523
   749
            }
slouken@6523
   750
            DragFinish(drop);
slouken@6523
   751
            return 0;
slouken@6523
   752
        }
slouken@6523
   753
        break;
slouken@6523
   754
    }
slouken@3566
   755
slouken@3566
   756
    /* If there's a window proc, assume it's going to handle messages */
slouken@3566
   757
    if (data->wndproc) {
slouken@3566
   758
        return CallWindowProc(data->wndproc, hwnd, msg, wParam, lParam);
slouken@3566
   759
    } else if (returnCode >= 0) {
slouken@3566
   760
        return returnCode;
slouken@3566
   761
    } else {
slouken@3566
   762
        return CallWindowProc(DefWindowProc, hwnd, msg, wParam, lParam);
slouken@3566
   763
    }
slouken@1895
   764
}
slouken@1895
   765
slouken@1895
   766
void
slouken@1895
   767
WIN_PumpEvents(_THIS)
slouken@1895
   768
{
slouken@1895
   769
    MSG msg;
slouken@1895
   770
    while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
slouken@1895
   771
        TranslateMessage(&msg);
slouken@1895
   772
        DispatchMessage(&msg);
slouken@1895
   773
    }
slouken@1895
   774
}
slouken@1895
   775
slouken@1895
   776
static int app_registered = 0;
slouken@1895
   777
LPTSTR SDL_Appname = NULL;
slouken@1895
   778
Uint32 SDL_Appstyle = 0;
slouken@1895
   779
HINSTANCE SDL_Instance = NULL;
slouken@1895
   780
slouken@1895
   781
/* Register the class for this application */
slouken@1895
   782
int
slouken@1895
   783
SDL_RegisterApp(char *name, Uint32 style, void *hInst)
slouken@1895
   784
{
slouken@1895
   785
    WNDCLASS class;
slouken@1895
   786
slouken@1895
   787
    /* Only do this once... */
slouken@1895
   788
    if (app_registered) {
slouken@1895
   789
        ++app_registered;
slouken@1895
   790
        return (0);
slouken@1895
   791
    }
slouken@1895
   792
    if (!name && !SDL_Appname) {
slouken@1895
   793
        name = "SDL_app";
slouken@5086
   794
#if defined(CS_BYTEALIGNCLIENT) || defined(CS_OWNDC)
slouken@1895
   795
        SDL_Appstyle = (CS_BYTEALIGNCLIENT | CS_OWNDC);
slouken@5086
   796
#endif
slouken@1895
   797
        SDL_Instance = hInst ? hInst : GetModuleHandle(NULL);
slouken@1895
   798
    }
slouken@1895
   799
slouken@1895
   800
    if (name) {
slouken@1895
   801
        SDL_Appname = WIN_UTF8ToString(name);
slouken@1895
   802
        SDL_Appstyle = style;
slouken@1895
   803
        SDL_Instance = hInst ? hInst : GetModuleHandle(NULL);
slouken@1895
   804
    }
slouken@1895
   805
slouken@1895
   806
    /* Register the application class */
slouken@1895
   807
    class.hCursor = NULL;
slouken@2710
   808
    class.hIcon =
slouken@2710
   809
        LoadImage(SDL_Instance, SDL_Appname, IMAGE_ICON, 0, 0,
slouken@2710
   810
                  LR_DEFAULTCOLOR);
slouken@1895
   811
    class.lpszMenuName = NULL;
slouken@1895
   812
    class.lpszClassName = SDL_Appname;
slouken@1895
   813
    class.hbrBackground = NULL;
slouken@1895
   814
    class.hInstance = SDL_Instance;
slouken@1895
   815
    class.style = SDL_Appstyle;
dewyatt@4733
   816
    class.lpfnWndProc = WIN_WindowProc;
slouken@1895
   817
    class.cbWndExtra = 0;
slouken@1895
   818
    class.cbClsExtra = 0;
slouken@1895
   819
    if (!RegisterClass(&class)) {
icculus@7037
   820
        return SDL_SetError("Couldn't register application class");
slouken@1895
   821
    }
slouken@1895
   822
slouken@1895
   823
    app_registered = 1;
icculus@7037
   824
    return 0;
slouken@1895
   825
}
slouken@1895
   826
slouken@1895
   827
/* Unregisters the windowclass registered in SDL_RegisterApp above. */
slouken@1895
   828
void
slouken@1895
   829
SDL_UnregisterApp()
slouken@1895
   830
{
slouken@1895
   831
    WNDCLASS class;
slouken@1895
   832
slouken@1895
   833
    /* SDL_RegisterApp might not have been called before */
slouken@1895
   834
    if (!app_registered) {
slouken@1895
   835
        return;
slouken@1895
   836
    }
slouken@1895
   837
    --app_registered;
slouken@1895
   838
    if (app_registered == 0) {
slouken@1895
   839
        /* Check for any registered window classes. */
slouken@1895
   840
        if (GetClassInfo(SDL_Instance, SDL_Appname, &class)) {
slouken@1895
   841
            UnregisterClass(SDL_Appname, SDL_Instance);
slouken@1895
   842
        }
slouken@1895
   843
        SDL_free(SDL_Appname);
slouken@1895
   844
        SDL_Appname = NULL;
slouken@1895
   845
    }
slouken@1895
   846
}
slouken@1895
   847
slouken@6044
   848
#endif /* SDL_VIDEO_DRIVER_WINDOWS */
slouken@6044
   849
slouken@1895
   850
/* vi: set ts=4 sw=4 expandtab: */