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mxwcore-legion/dep/g3dlite/source/prompt.cpp

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/**
@file prompt.cpp
@author Morgan McGuire, http://graphics.cs.williams.edu
@cite Windows dialog interface by Max McGuire, mmcguire@ironlore.com
@cite Font setting code by Kurt Miller, kurt@flipcode.com
@created 2000-08-26
@edited 2005-01-14
*/
#include "G3D/prompt.h"
#include "G3D/platform.h"
#include <stdio.h>
#ifdef G3D_WINDOWS
# include <sstream>
# include <conio.h>
#else
# define _getch getchar
#endif
#if 0 /* G3DFIX: exclude GUI prompt code */
#ifdef G3D_OSX
/*#ifdef __LP64__
# undef __LP64__
#endif
*/
# include "G3D/prompt_cocoa.h"
/*
#ifdef G3D_64BIT
# define __LP64__
#endif
*/
#endif
#endif /* G3DFIX: exclude GUI prompt code */
namespace G3D {
#if 0 /* G3DFIX: exclude GUI prompt code */
#ifdef G3D_WINDOWS
namespace _internal {
/**
Generic Win32 dialog facility.
@author Max McGuire
*/
class DialogTemplate {
public:
DialogTemplate(LPCSTR caption, DWORD style,
int x, int y, int w, int h,
LPCSTR font = NULL, WORD fontSize = 8) {
usedBufferLength = sizeof(DLGTEMPLATE);
totalBufferLength = usedBufferLength;
dialogTemplate = (DLGTEMPLATE*)malloc(totalBufferLength);
dialogTemplate->style = style;
if (font != NULL) {
dialogTemplate->style |= DS_SETFONT;
}
dialogTemplate->x = (short)x;
dialogTemplate->y = (short)y;
dialogTemplate->cx = (short)w;
dialogTemplate->cy = (short)h;
dialogTemplate->cdit = 0;
dialogTemplate->dwExtendedStyle = 0;
// The dialog box doesn't have a menu or a special class
AppendData("\0", 2);
AppendData("\0", 2);
// Add the dialog's caption to the template
AppendString(caption);
if (font != NULL) {
AppendData(&fontSize, sizeof(WORD));
AppendString(font);
}
}
void AddComponent(LPCSTR type, LPCSTR caption, DWORD style, DWORD exStyle, int x, int y, int w, int h, WORD id) {
DLGITEMTEMPLATE item;
item.style = style;
item.x = (short)x;
item.y = (short)y;
item.cx = (short)w;
item.cy = (short)h;
item.id = id;
item.dwExtendedStyle = exStyle;
AppendData(&item, sizeof(DLGITEMTEMPLATE));
AppendString(type);
AppendString(caption);
WORD creationDataLength = 0;
AppendData(&creationDataLength, sizeof(WORD));
// Increment the component count
dialogTemplate->cdit++;
}
void AddButton(LPCSTR caption, DWORD style, DWORD exStyle, int x, int y, int w, int h, WORD id) {
AddStandardComponent(0x0080, caption, style, exStyle, x, y, w, h, id);
WORD creationDataLength = 0;
AppendData(&creationDataLength, sizeof(WORD));
}
void AddEditBox(LPCSTR caption, DWORD style, DWORD exStyle, int x, int y, int w, int h, WORD id) {
AddStandardComponent(0x0081, caption, style, exStyle, x, y, w, h, id);
WORD creationDataLength = 0;
AppendData(&creationDataLength, sizeof(WORD));
}
void AddStatic(LPCSTR caption, DWORD style, DWORD exStyle, int x, int y, int w, int h, WORD id) {
AddStandardComponent(0x0082, caption, style, exStyle, x, y, w, h, id);
WORD creationDataLength = 0;
AppendData(&creationDataLength, sizeof(WORD));
}
void AddListBox(LPCSTR caption, DWORD style, DWORD exStyle, int x, int y, int w, int h, WORD id) {
AddStandardComponent(0x0083, caption, style, exStyle, x, y, w, h, id);
WORD creationDataLength = sizeof(WORD) + 5 * sizeof(WCHAR);
AppendData(&creationDataLength, sizeof(WORD));
AppendString("TEST");
}
void AddScrollBar(LPCSTR caption, DWORD style, DWORD exStyle, int x, int y, int w, int h, WORD id) {
AddStandardComponent(0x0084, caption, style, exStyle, x, y, w, h, id);
WORD creationDataLength = 0;
AppendData(&creationDataLength, sizeof(WORD));
}
void AddComboBox(LPCSTR caption, DWORD style, DWORD exStyle, int x, int y, int w, int h, WORD id) {
AddStandardComponent(0x0085, caption, style, exStyle, x, y, w, h, id);
WORD creationDataLength = 0;
AppendData(&creationDataLength, sizeof(WORD));
}
/**
*
* Returns a pointer to the Win32 dialog template which the object
* represents. This pointer may become invalid if additional components
* are added to the template.
*
*/
operator const DLGTEMPLATE*() const {
return dialogTemplate;
}
virtual ~DialogTemplate() {
free(dialogTemplate);
}
protected:
void AddStandardComponent(WORD type, LPCSTR caption, DWORD style, DWORD exStyle,
int x, int y, int w, int h, WORD id, LPSTR font = NULL, WORD fontSize = 8) {
DLGITEMTEMPLATE item;
// DWORD align the beginning of the component data
AlignData(sizeof(DWORD));
item.style = style;
if (font != NULL) {
item.style |= DS_SETFONT;
}
item.x = (short)x;
item.y = (short)y;
item.cx = (short)w;
item.cy = (short)h;
item.id = id;
item.dwExtendedStyle = exStyle;
AppendData(&item, sizeof(DLGITEMTEMPLATE));
WORD preType = 0xFFFF;
AppendData(&preType, sizeof(WORD));
AppendData(&type, sizeof(WORD));
AppendString(caption);
if (font != NULL) {
AppendData(&fontSize, sizeof(WORD));
AppendString(font);
}
// Increment the component count
dialogTemplate->cdit++;
}
void AlignData(int size) {
int paddingSize = usedBufferLength % size;
if (paddingSize != 0) {
EnsureSpace(paddingSize);
usedBufferLength += paddingSize;
}
}
void AppendString(LPCSTR string) {
int length = MultiByteToWideChar(CP_ACP, 0, string, -1, NULL, 0);
WCHAR* wideString = (WCHAR*)malloc(sizeof(WCHAR) * length);
MultiByteToWideChar(CP_ACP, 0, string, -1, wideString, length);
AppendData(wideString, length * sizeof(WCHAR));
free(wideString);
}
void AppendData(const void* data, int dataLength) {
EnsureSpace(dataLength);
memcpy((char*)dialogTemplate + usedBufferLength, data, dataLength);
usedBufferLength += dataLength;
}
void EnsureSpace(int length) {
if (length + usedBufferLength > totalBufferLength) {
totalBufferLength += length * 2;
void* newBuffer = malloc(totalBufferLength);
memcpy(newBuffer, dialogTemplate, usedBufferLength);
free(dialogTemplate);
dialogTemplate = (DLGTEMPLATE*)newBuffer;
}
}
private:
DLGTEMPLATE* dialogTemplate;
int totalBufferLength;
int usedBufferLength;
};
struct PromptParams {
const char* message;
const char* title;
};
/**
* Constants for controls.
*/
#define IDC_MESSAGE 1000
#define IDC_BUTTON0 2000
INT_PTR CALLBACK PromptDlgProc(HWND hDlg, UINT msg,
WPARAM wParam, LPARAM lParam) {
switch(msg) {
case WM_INITDIALOG:
{
PromptParams *params = (PromptParams*)lParam;
::SetWindowTextA(::GetDlgItem(hDlg, IDC_MESSAGE), params->message);
::SetFocus(::GetDlgItem(hDlg, IDC_BUTTON0));
SetWindowTextA(hDlg, params->title);
HFONT hfont =
CreateFontA(16, 0, 0, 0, FW_NORMAL,
FALSE, FALSE, FALSE,
ANSI_CHARSET,OUT_DEFAULT_PRECIS,CLIP_DEFAULT_PRECIS,
PROOF_QUALITY, FIXED_PITCH | FF_MODERN, "Courier New");
SendDlgItemMessage(hDlg, IDC_MESSAGE, WM_SETFONT, (WPARAM)hfont, MAKELPARAM(TRUE,0));
break;
}
case WM_COMMAND:
{
int choiceNumber = LOWORD(wParam) - IDC_BUTTON0;
if ((choiceNumber >= 0) && (choiceNumber < 10)) {
EndDialog(hDlg, choiceNumber);
return TRUE;
}
}
break;
case WM_NCDESTROY:
// Under SDL 1.2.6 we get a NCDESTROY message for no reason and the
// window is immediately closed. This is here to debug the problem.
(void)0;
break;
}
return FALSE;
}
}; // namespace _internal
using namespace _internal;
/**
* Show a dialog prompt.
*/
static int guiPrompt(
const char* windowTitle,
const char* prompt,
const char** choice,
int numChoices) {
int width = 340;
int height = 220;
const int buttonSpacing = 2;
const int buttonWidth =
(width - buttonSpacing * 2 -
buttonSpacing * (numChoices - 1)) / numChoices;
const int buttonHeight = 13;
DialogTemplate dialogTemplate(
windowTitle,
WS_CAPTION | DS_CENTER | WS_SYSMENU,
10, 10, width, height,
"Tahoma");
dialogTemplate.AddEditBox(
"Edit", WS_VISIBLE | ES_READONLY | ES_OEMCONVERT | ES_MULTILINE | WS_TABSTOP, WS_EX_STATICEDGE,
2, 2, width - 4, height - buttonHeight - 7, IDC_MESSAGE);
int i;
for (i = 0; i < numChoices; ++i) {
int x = buttonSpacing + i * (buttonWidth + buttonSpacing);
int y = height - buttonHeight - buttonSpacing;
dialogTemplate.AddButton(choice[i], WS_VISIBLE | WS_TABSTOP, 0,
x, y, buttonWidth, buttonHeight, IDC_BUTTON0 + (WORD)i);
}
// Convert all single \n characters to \r\n for proper printing
int strLen = 0;
const char* pStr = prompt;
while (*pStr != '\0') {
if ((*pStr == '\n') && (pStr != prompt)) {
if (*(pStr - 1) != '\r') {
++strLen;
}
}
++strLen;
++pStr;
}
char* newStr = (char*)malloc(strLen + 1);
const char* pStr2 = prompt;
char* pNew = newStr;
while (*pStr2 != '\0') {
if ((*pStr2 == '\n') && (pStr2 != prompt)) {
if (*(pStr2 - 1) != '\r') {
*pNew = '\r';
++pNew;
}
}
*pNew = *pStr2;
++pNew;
++pStr2;
}
*pNew = '\0';
PromptParams params;
params.message = newStr;;
params.title = windowTitle;
HMODULE module = GetModuleHandle(0);
int ret = (int)DialogBoxIndirectParam(module, dialogTemplate, NULL, (DLGPROC) PromptDlgProc, (DWORD)&params);
free(newStr);
/*
For debugging when DialogBoxIndirectParam fails:
// The last error value. (Which is preserved across the call).
DWORD lastErr = GetLastError();
// The decoded message from FormatMessage
LPTSTR formatMsg = NULL;
if (NULL == formatMsg) {
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_IGNORE_INSERTS |
FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
lastErr,
0,
(LPTSTR)&formatMsg,
0,
NULL);
}
// Make sure the message got translated into something.
LPTSTR realLastErr;
if (NULL != formatMsg) {
realLastErr = formatMsg;
} else {
realLastErr = "Last error code does not exist.";
}
// Get rid of the allocated memory from FormatMessage.
if (NULL != formatMsg) {
LocalFree((LPVOID)formatMsg);
}
*/
return ret;
}
#endif
#endif /* G3DFIX: exclude GUI prompt code */
/**
* Show a prompt on stdout
*/
static int textPrompt(
const char* windowTitle,
const char* prompt,
const char** choice,
int numChoices) {
printf("\n___________________________________________________\n");
printf("%s\n", windowTitle);
printf("%s", prompt);
if (numChoices > 10) {
numChoices = 10;
}
int c = -1;
if (numChoices > 1) {
printf("\n");
printf("Choose an option by number:");
while ((c < 0) || (c >= numChoices)) {
printf("\n");
for (int i = 0; i < numChoices; ++i) {
if (numChoices <= 3) {
printf(" (%d) %s ", i, choice[i]);
} else {
printf(" (%d) %s\n", i, choice[i]);
}
}
printf("\n> ");
c = _getch() - '0';
if ((c < 0) || (c >= numChoices)) {
printf("'%d' is not a valid choice.", c);
} else {
printf("%d", c);
}
}
} else if (numChoices == 1) {
printf("\nPress any key for '%s'...", choice[0]);
_getch();
c = 0;
} else {
printf("\nPress any key...");
_getch();
c = 0;
}
printf("\n___________________________________________________\n");
return c;
}
#if 0 /* G3DFIX: exclude GUI prompt code */
#ifdef G3D_OSX
static int guiPrompt
(const char* windowTitle,
const char* prompt,
const char** choice,
int numChoices) {
return prompt_cocoa(windowTitle, prompt, choice, numChoices);
}
#endif
#endif /* G3DFIX: exclude GUI prompt code */
int prompt(
const char* windowTitle,
const char* prompt,
const char** choice,
int numChoices,
bool useGui) {
#if 0 /* G3DFIX: exclude GUI prompt code */
#ifdef G3D_WINDOWS
if (useGui) {
// Build the message box
return guiPrompt(windowTitle, prompt, choice, numChoices);
}
#endif
#ifdef G3D_OSX
if (useGui){
//Will default to text prompt if numChoices > 4
int result = guiPrompt(windowTitle, prompt, choice, numChoices);
fprintf(stderr, "%d\n", result);
return result;
}
#endif
#endif /* G3DFIX: exclude GUI prompt code */
return textPrompt(windowTitle, prompt, choice, numChoices);
}
void msgBox(
const std::string& message,
const std::string& title) {
const char *choice[] = {"Ok"};
prompt(title.c_str(), message.c_str(), choice, 1, true);
}
#ifndef G3D_WINDOWS
#undef _getch
#endif
}// namespace
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