Added Windows message box implementation, but it needs a little work on layout.
This commit is contained in:
Sam Lantinga
parent
0d419a6832
commit
f8a4c99701
4 changed files with 327 additions and 0 deletions
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@ -1216,6 +1216,14 @@
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RelativePath="..\..\src\video\windows\SDL_windowskeyboard.h"
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>
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</File>
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<File
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RelativePath="..\..\src\video\windows\SDL_windowsmessagebox.c"
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>
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</File>
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<File
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RelativePath="..\..\src\video\windows\SDL_windowsmessagebox.h"
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>
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</File>
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<File
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RelativePath="..\..\src\video\windows\SDL_windowsmodes.c"
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>
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@ -2841,6 +2841,9 @@ SDL_IsScreenKeyboardShown(SDL_Window *window)
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return SDL_FALSE;
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}
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#if SDL_VIDEO_DRIVER_WINDOWS
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#include "windows/SDL_windowsmessagebox.h"
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#endif
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#if SDL_VIDEO_DRIVER_COCOA
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#include "cocoa/SDL_cocoamessagebox.h"
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#endif
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@ -2866,6 +2869,11 @@ SDL_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid)
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}
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/* It's completely fine to call this function before video is initialized */
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#if SDL_VIDEO_DRIVER_WINDOWS
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if (WIN_ShowMessageBox(messageboxdata, buttonid) == 0) {
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return 0;
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}
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#endif
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#if SDL_VIDEO_DRIVER_COCOA
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if (Cocoa_ShowMessageBox(messageboxdata, buttonid) == 0) {
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return 0;
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282
src/video/windows/SDL_windowsmessagebox.c
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282
src/video/windows/SDL_windowsmessagebox.c
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@ -0,0 +1,282 @@
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2012 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.h"
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#include "SDL_windowsvideo.h"
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/* Display a Windows message box */
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typedef struct
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{
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LPDLGTEMPLATE lpDialog;
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Uint8 *data;
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size_t size;
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size_t used;
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} WIN_DialogData;
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static INT_PTR MessageBoxDialogProc(HWND hDlg, UINT iMessage, WPARAM wParam, LPARAM lParam)
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{
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switch ( iMessage ) {
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case WM_COMMAND:
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/* Return the ID of the button that was pushed */
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EndDialog(hDlg, LOWORD(wParam));
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return TRUE;
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default:
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break;
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}
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return FALSE;
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}
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static SDL_bool ExpandDialogSpace(WIN_DialogData *dialog, size_t space)
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{
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size_t size = dialog->size;
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if (size == 0) {
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size = space;
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} else {
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while ((dialog->used + space) > size) {
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size *= 2;
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}
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}
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if (size > dialog->size) {
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void *data = SDL_realloc(dialog->data, size);
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if (!data) {
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SDL_OutOfMemory();
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return SDL_FALSE;
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}
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dialog->data = data;
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dialog->size = size;
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dialog->lpDialog = (LPDLGTEMPLATE)dialog->data;
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}
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return SDL_TRUE;
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}
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static SDL_bool AlignDialogData(WIN_DialogData *dialog, size_t size)
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{
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size_t padding = (dialog->used % size);
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if (!ExpandDialogSpace(dialog, padding)) {
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return SDL_FALSE;
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}
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dialog->used += padding;
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return SDL_TRUE;
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}
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static SDL_bool AddDialogData(WIN_DialogData *dialog, const void *data, size_t size)
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{
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if (!ExpandDialogSpace(dialog, size)) {
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return SDL_FALSE;
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}
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SDL_memcpy(dialog->data+dialog->used, data, size);
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dialog->used += size;
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return SDL_TRUE;
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}
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static SDL_bool AddDialogString(WIN_DialogData *dialog, const char *string)
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{
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WCHAR *wstring;
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WCHAR *p;
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size_t count;
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SDL_bool status;
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if (!string) {
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string = "";
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}
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wstring = WIN_UTF8ToString(string);
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if (!wstring) {
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return SDL_FALSE;
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}
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/* Find out how many characters we have, including null terminator */
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count = 0;
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for (p = wstring; *p; ++p) {
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++count;
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}
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++count;
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status = AddDialogData(dialog, wstring, count*sizeof(WCHAR));
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SDL_free(wstring);
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return status;
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}
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static SDL_bool AddDialogControl(WIN_DialogData *dialog, WORD type, DWORD style, DWORD exStyle, int x, int y, int w, int h, int id, const char *caption)
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{
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DLGITEMTEMPLATE item;
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WORD marker = 0xFFFF;
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WORD extraData = 0;
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SDL_zero(item);
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item.style = style;
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item.dwExtendedStyle = exStyle;
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item.x = x;
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item.y = y;
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item.cx = w;
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item.cy = h;
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item.id = id;
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if (!AlignDialogData(dialog, sizeof(DWORD))) {
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return SDL_FALSE;
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}
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if (!AddDialogData(dialog, &item, sizeof(item))) {
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return SDL_FALSE;
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}
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if (!AddDialogData(dialog, &marker, sizeof(marker))) {
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return SDL_FALSE;
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}
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if (!AddDialogData(dialog, &type, sizeof(type))) {
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return SDL_FALSE;
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}
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if (!AddDialogString(dialog, caption)) {
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return SDL_FALSE;
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}
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if (!AddDialogData(dialog, &extraData, sizeof(extraData))) {
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return SDL_FALSE;
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}
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++dialog->lpDialog->cdit;
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return SDL_TRUE;
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}
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static SDL_bool AddDialogStatic(WIN_DialogData *dialog, int x, int y, int w, int h, const char *text)
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{
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DWORD style = WS_VISIBLE | WS_CHILD | SS_LEFT | SS_NOPREFIX;
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return AddDialogControl(dialog, 0x0082, style, 0, x, y, w, h, -1, text);
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}
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static SDL_bool AddDialogButton(WIN_DialogData *dialog, int x, int y, int w, int h, const char *text, int id, SDL_bool isDefault)
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{
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DWORD style = WS_VISIBLE | WS_CHILD;
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if (isDefault) {
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style |= BS_DEFPUSHBUTTON;
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} else {
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style |= BS_PUSHBUTTON;
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}
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return AddDialogControl(dialog, 0x0080, style, 0, x, y, w, h, id, text);
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}
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static void FreeDialogData(WIN_DialogData *dialog)
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{
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if (dialog->data) {
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SDL_free(dialog->data);
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}
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SDL_free(dialog);
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}
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static WIN_DialogData *CreateDialogData(int w, int h, const char *caption)
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{
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WIN_DialogData *dialog;
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DLGTEMPLATE dialogTemplate;
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SDL_zero(dialogTemplate);
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dialogTemplate.style = (WS_CAPTION | DS_CENTER);
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dialogTemplate.x = 0;
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dialogTemplate.y = 0;
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dialogTemplate.cx = w;
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dialogTemplate.cy = h;
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dialog = (WIN_DialogData *)SDL_calloc(1, sizeof(*dialog));
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if (!dialog) {
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return NULL;
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}
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if (!AddDialogData(dialog, &dialogTemplate, sizeof(dialogTemplate))) {
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FreeDialogData(dialog);
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return NULL;
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}
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/* There is no menu or special class */
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if (!AddDialogString(dialog, "") || !AddDialogString(dialog, "")) {
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FreeDialogData(dialog);
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return NULL;
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}
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if (!AddDialogString(dialog, caption)) {
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FreeDialogData(dialog);
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return NULL;
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}
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return dialog;
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}
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int
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WIN_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid)
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{
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WIN_DialogData *dialog;
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int i, x, y, w, h, gap, which;
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const SDL_MessageBoxButtonData *buttons = messageboxdata->buttons;
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/* FIXME: Need a better algorithm for laying out the message box */
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dialog = CreateDialogData(570, 260, messageboxdata->title);
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if (!dialog) {
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return -1;
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}
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w = 100;
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h = 25;
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gap = 10;
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x = gap;
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y = 50;
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if (!AddDialogStatic(dialog, x, y, 550, 100, messageboxdata->message)) {
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FreeDialogData(dialog);
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return -1;
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}
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y += 110;
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for (i = 0; i < messageboxdata->numbuttons; ++i) {
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SDL_bool isDefault;
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if (buttons[i].flags & SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT) {
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isDefault = SDL_TRUE;
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} else {
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isDefault = SDL_FALSE;
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}
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if (!AddDialogButton(dialog, x, y, w, h, buttons[i].text, i, isDefault)) {
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FreeDialogData(dialog);
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return -1;
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}
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x += w + gap;
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}
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/* FIXME: If we have a parent window, get the Instance and HWND for them */
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which = DialogBoxIndirect(NULL, dialog->lpDialog, NULL, (DLGPROC)MessageBoxDialogProc);
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*buttonid = buttons[which].buttonid;
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FreeDialogData(dialog);
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return 0;
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}
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#endif /* SDL_VIDEO_DRIVER_WINDOWS */
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/* vi: set ts=4 sw=4 expandtab: */
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29
src/video/windows/SDL_windowsmessagebox.h
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29
src/video/windows/SDL_windowsmessagebox.h
Normal file
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@ -0,0 +1,29 @@
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2012 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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extern int WIN_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid);
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#endif /* SDL_VIDEO_DRIVER_WINDOWS */
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/* vi: set ts=4 sw=4 expandtab: */
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