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CMUgraphics.cpp
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/*
See "version.h" for version info and copyright information
This file was last modified on 05.16.1999
*/
#include <string>
#include <iostream>
#include <cstdio>
#include <cmath>
#include "CMUgraphics.h"
#include "error.h"
#include "windowinput.h"
// Keeps track of key and mouse input and redirects it to the
// appropriate window object
windowinput* wipInput = NULL;
static LRESULT CALLBACK WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) {
switch(msg) {
case WM_LBUTTONDOWN:
if(wipInput != NULL) {
wipInput->SetMouseState(hwnd, LEFT_BUTTON, BUTTON_DOWN, LOWORD(lParam), HIWORD(lParam));
}
SetCapture(hwnd);
return 0;
case WM_RBUTTONDOWN:
if(wipInput != NULL) {
wipInput->SetMouseState(hwnd, RIGHT_BUTTON, BUTTON_DOWN, LOWORD(lParam), HIWORD(lParam));
}
SetCapture(hwnd);
return 0;
case WM_LBUTTONUP:
if(wipInput != NULL) {
wipInput->SetMouseState(hwnd, LEFT_BUTTON, BUTTON_UP, LOWORD(lParam), HIWORD(lParam));
wipInput->SetClickInfo(hwnd, LEFT_CLICK, LOWORD(lParam), HIWORD(lParam));
}
ReleaseCapture();
return 0;
case WM_RBUTTONUP:
if(wipInput != NULL) {
wipInput->SetMouseState(hwnd, RIGHT_BUTTON, BUTTON_UP, LOWORD(lParam), HIWORD(lParam));
wipInput->SetClickInfo(hwnd, RIGHT_CLICK, LOWORD(lParam), HIWORD(lParam));
}
ReleaseCapture();
return 0;
case WM_MOUSEMOVE:
if(wipInput != NULL) {
wipInput->SetMouseCoord(hwnd, LOWORD(lParam), HIWORD(lParam));
}
return 0;
case WM_KEYDOWN:
switch(wParam) {
case VK_END:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, ARROW, 1);
}
break;
case VK_DOWN:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, ARROW, 2);
}
break;
case VK_NEXT:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, ARROW, 3);
}
break;
case VK_LEFT:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, ARROW, 4);
}
break;
case VK_RIGHT:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, ARROW, 6);
}
break;
case VK_HOME:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, ARROW, 7);
}
break;
case VK_UP:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, ARROW, 8);
}
break;
case VK_PRIOR:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, ARROW, 9);
}
break;
case VK_ESCAPE:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, ESCAPE, 1);
}
break;
case VK_F1:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, FUNCTION, 1);
}
break;
case VK_F2:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, FUNCTION, 2);
}
break;
case VK_F3:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, FUNCTION, 3);
}
break;
case VK_F4:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, FUNCTION, 4);
}
break;
case VK_F5:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, FUNCTION, 5);
}
break;
case VK_F6:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, FUNCTION, 6);
}
break;
case VK_F7:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, FUNCTION, 7);
}
break;
case VK_F8:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, FUNCTION, 8);
}
break;
case VK_F9:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, FUNCTION, 9);
}
break;
case VK_F10:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, FUNCTION, 10);
}
break;
case VK_F11:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, FUNCTION, 11);
}
break;
case VK_F12:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, FUNCTION, 12);
}
break;
}
return 0;
case WM_CHAR:
if(wipInput != NULL) {
wipInput->SetKeyInfo(hwnd, ASCII, (char) wParam);
}
return 0;
}
return DefWindowProc(hwnd, msg, wParam, lParam);
}
window::window(const int iWindWidth, const int iWindHeight, const int iWindXPos, const int iWindYPos) :
hInstance(GetModuleHandle(0)), iWindowWidth(iWindWidth), iWindowHeight(iWindHeight) {
iMouseX = -1;
iMouseY = -1;
wndcWindow.style = 0;
wndcWindow.lpfnWndProc = WindowProc;
wndcWindow.cbClsExtra = 0;
wndcWindow.cbWndExtra = 0;
wndcWindow.hInstance = hInstance;
wndcWindow.hIcon = NULL;
wndcWindow.hCursor = LoadCursor(NULL, IDC_ARROW);
wndcWindow.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
wndcWindow.lpszMenuName = NULL;
wndcWindow.lpszClassName = ccDefWindClassName;
RegisterClass(&wndcWindow);
hwndWindow = CreateWindow(ccDefWindClassName, ccDefWindTitle, WS_CAPTION | WS_SYSMENU | WS_VISIBLE | WS_MINIMIZEBOX , iWindXPos,
iWindYPos, iWindowWidth + GetSystemMetrics(SM_CXEDGE),
iWindowHeight + GetSystemMetrics(SM_CYCAPTION) + GetSystemMetrics(SM_CYEDGE) - 1, // Not sure why I need to subtract 1
HWND_DESKTOP, NULL, hInstance, 0);
if (hwndWindow) {
ShowWindow(hwndWindow, SW_SHOW);
dcScreen = GetDC(hwndWindow);
// No doublebuffering yet so dcActive is the same as dcScreen
dcActive = dcScreen;
}
penOldObject = penObject = NULL;
brshOldObject = brshObject = NULL;
fontOldObject = fontObject = NULL;
bmapBuffer = NULL;
bsLeft = BUTTON_UP;
bsRight = BUTTON_UP;
bDoubleBuffer = false;
SetPen(WHITE, 0);
SetBrush(WHITE);
SetFont(10, PLAIN, SWISS);
if(wipInput == NULL) {
wipInput = new windowinput(hwndWindow, this);
if(wipInput == NULL) {
throw OUT_OF_MEMORY;
}
} else {
wipInput->AddWindow(hwndWindow, this);
}
}
window::~window() {
int iX, iY;
if(dcScreen != NULL) {
if(ReleaseDC(hwndWindow, dcScreen) == 0) {
cout << "Fatal Error: Failed to release dcScreen in window class destructor!" << endl;
}
if(dcActive == dcScreen) {
dcActive = NULL;
}
dcScreen = NULL;
}
if (dcActive != NULL) {
if(DeleteDC(dcActive) != TRUE) {
cout << "Fatal Error: Failed to delete dcActive in window class destructor!" << endl;
}
}
if(penObject != NULL) {
if(DeleteObject(penObject) != TRUE) {
cout << "Fatal Error: Failed to delete penObject in window class destructor!" << endl;
}
penObject = NULL;
}
if(brshObject != NULL) {
if(DeleteObject(brshObject) != TRUE) {
cout << "Fatal Error: Failed to delete brshObject in window class destructor!" << endl;
}
brshObject = NULL;
}
if(fontObject != NULL) {
if(DeleteObject(fontObject) != TRUE) {
cout << "Fatal Error: Failed to delete fontObject in window class destructor!" << endl;
}
fontObject = NULL;
}
if(bmapBuffer != NULL) {
if(DeleteObject(bmapBuffer) != TRUE) {
cout << "Fatal Error: Failed to delete bmapBuffer in window class destructor!" << endl;
}
bmapBuffer = NULL;
}
if(wipInput->Count() == 1) {
if(wipInput->bWaitClose == true) {
FlushMouseQueue();
// Can't use cout because it's destructor might be called before the
// window destructor if the window is in the global scope.
printf("Click mouse in the graphics window to finish execution.\n");
WaitMouseClick(iX, iY);
}
wipInput->RemoveWindow(hwndWindow);
delete wipInput;
wipInput = NULL;
} else {
wipInput->RemoveWindow(hwndWindow);
}
DestroyWindow(hwndWindow);
}
inline void window::ProcessMessage() {
MSG msgStruct;
if(PeekMessage(&msgStruct, hwndWindow, 0, 0, PM_REMOVE)) {
TranslateMessage(&msgStruct);
DispatchMessage(&msgStruct);
}
}
void window::ChangeDrawStyle(drawstyle dsNewStyle) {
switch(dsNewStyle) {
case FILLED:
penOldObject = (HPEN) SelectObject(dcActive, penObject);
brshOldObject = (HBRUSH) SelectObject(dcActive, brshObject);
SetROP2(dcActive, R2_COPYPEN);
break;
case FRAME:
penOldObject = (HPEN) SelectObject(dcActive, penObject);
brshOldObject = (HBRUSH) SelectObject(dcActive, GetStockObject(NULL_BRUSH));
SetROP2(dcActive, R2_COPYPEN);
break;
case INVERTED:
penOldObject = (HPEN) SelectObject(dcActive, GetStockObject(BLACK_PEN));
brshOldObject = (HBRUSH) SelectObject(dcActive, GetStockObject(BLACK_BRUSH));
SetROP2(dcActive, R2_NOT);
break;
default:
cout << "Fatal Error: You have tried to use an invalid or unimplemented drawstyle!" << endl;
break;
}
}
void window::RestoreDrawStyle() {
SelectObject(dcActive, penOldObject);
SelectObject(dcActive, brshOldObject);
}
bool window::SetWaitClose(const bool bSetting ) const {
bool bReturnVal;
bReturnVal = wipInput->bWaitClose;
wipInput->bWaitClose = bSetting;
return bReturnVal;
}
bool window::SetBuffering(const bool bSetting) {
bool bReturnVal;
ProcessMessage(); // Kludge
// Is this changing the setting?
if(bDoubleBuffer == bSetting) {
return bDoubleBuffer;
} else {
bReturnVal = bDoubleBuffer;
bDoubleBuffer = bSetting;
}
if(bDoubleBuffer == true) {
bmapBuffer = CreateDiscardableBitmap(dcActive, iWindowWidth, iWindowHeight);
dcScreen = dcActive;
dcActive = CreateCompatibleDC(dcScreen);
if(dcActive != NULL) {
bmapBufferOld = (HBITMAP) SelectObject(dcActive, bmapBuffer);
}
SetPen(WHITE);
SetBrush(WHITE);
DrawRectangle(0, 0, iWindowWidth - 1, iWindowHeight - 1);
} else {
SelectObject(dcActive, bmapBufferOld);
if(dcActive != NULL) {
if(DeleteDC(dcActive) != TRUE) {
cout << "Fatal Error: Failed to delete dcActive in SetBuffering!" << endl;
}
dcActive = NULL;
}
if(bmapBuffer != NULL) {
if(DeleteObject(bmapBuffer) != TRUE) {
cout << "Fatal Error: Failed to delete bmapBuffer in SetBuffering!" << endl;
}
bmapBuffer = NULL;
}
dcActive = dcScreen;
}
return bReturnVal;
}
void window::UpdateBuffer() {
ProcessMessage(); // Kludge
if(bDoubleBuffer != false) {
if(BitBlt(dcScreen, 0, 0, iWindowWidth - 1, iWindowHeight - 1, dcActive, 0, 0, SRCCOPY) != TRUE) {
cout << "Fatal Error: Failed to BitBlt in UpdateBuffer!" << endl;
}
}
}
void window::ChangeTitle(const char* cpNewTitle) {
ProcessMessage(); // Kludge
SetWindowText(hwndWindow, cpNewTitle);
}
void window::ChangeTitle(string strNewTitle) {
ChangeTitle((char *) strNewTitle.c_str());
}
int window::GetWidth() const {
return iWindowWidth;
}
int window::GetHeight() const {
return iWindowHeight;
}
void window::GetWindowSize(int &iX, int &iY) const {
iX = iWindowWidth;
iY = iWindowHeight;
}
void window::GetMouseCoord(int &iX, int &iY) {
ProcessMessage(); // Kludge
iX = iMouseX;
iY = iMouseY;
}
buttonstate window::GetButtonState(const button btMouse, int &iX, int &iY) {
ProcessMessage(); // Kludge
iX = iMouseX;
iY = iMouseY;
if(btMouse == LEFT_BUTTON) {
return bsLeft;
} else {
return bsRight;
}
}
clicktype window::GetMouseClick(int &iX, int &iY) {
mqueuenode* mqueTmp;
clicktype ctTmp;
ProcessMessage(); // Kludge
mqueTmp = mqueInput.Remove();
if(mqueTmp != NULL) {
iX = mqueTmp->iX;
iY = mqueTmp->iY;
ctTmp = mqueTmp->ctInfo;
delete mqueTmp;
return ctTmp;
} else {
iX = -1;
iY = -1;
return NO_CLICK;
}
}
keytype window::GetKeyPress(char &cKey) {
kqueuenode* kqueTmp;
keytype ktTmp;
ProcessMessage(); // Kludge
kqueTmp = kqueInput.Remove();
if(kqueTmp != NULL) {
cKey = kqueTmp->cValue;
ktTmp = kqueTmp->ktInfo;
delete kqueTmp;
return ktTmp;
} else {
cKey = 0;
return NO_KEYPRESS;
}
}
clicktype window::WaitMouseClick(int &iX, int &iY) {
mqueuenode* mqueTmp;
clicktype ctTmp;
while(true) {
ProcessMessage(); // Kludge
mqueTmp = mqueInput.Remove();
if(mqueTmp != NULL) {
iX = mqueTmp->iX;
iY = mqueTmp->iY;
ctTmp = mqueTmp->ctInfo;
delete mqueTmp;
return ctTmp;
}
}
}
keytype window::WaitKeyPress(char &cKey) {
kqueuenode* kqueTmp;
keytype ktTmp;
while(true) {
ProcessMessage(); // Kludge
kqueTmp = kqueInput.Remove();
if(kqueTmp != NULL) {
cKey = kqueTmp->cValue;
ktTmp = kqueTmp->ktInfo;
delete kqueTmp;
return ktTmp;
}
}
}
void window::FlushKeyQueue() {
ProcessMessage(); // Kludge
kqueuenode* kqueTmp;
while((kqueTmp = kqueInput.Remove()) != NULL) {
delete kqueTmp;
}
}
void window::FlushMouseQueue() {
ProcessMessage(); // Kludge
mqueuenode* mqueTmp;
while((mqueTmp = mqueInput.Remove()) != NULL) {
delete mqueTmp;
}
}
color window::SetBrush(const double dRed, const double dGreen, const double dBlue) {
return SetBrush((unsigned char)(dRed * 255), (unsigned char)(dGreen * 255), (unsigned char)(dBlue * 255));
}
color window::SetBrush(const color &colBrush) {
return SetBrush(colBrush.ucRed, colBrush.ucGreen, colBrush.ucBlue);
}
color window::SetBrush(const unsigned char ucRed, const unsigned char ucGreen, const unsigned char ucBlue) {
color colReturn;
ProcessMessage(); // Kludge
colReturn = colBrsh;
if (brshObject != NULL) {
if(DeleteObject(brshObject) != TRUE) {
cout << "Fatal Error: Failed to delete brshObject in SetBrush!" << endl;
}
brshObject = NULL;
}
colBrsh.ucRed = ucRed;
colBrsh.ucGreen = ucGreen;
colBrsh.ucBlue = ucBlue;
brshObject = CreateSolidBrush(RGB(ucRed, ucGreen, ucBlue));
return colReturn;
}
color window::SetPen(const double dRed, const double dGreen, const double dBlue, const int iWidth) {
return SetPen((unsigned char)(dRed * 255), (unsigned char)(dGreen * 255), (unsigned char)(dBlue * 255), iWidth);
}
color window::SetPen(const color &colPen, const int iWidth) {
return SetPen(colPen.ucRed, colPen.ucGreen, colPen.ucBlue, iWidth);
}
color window::SetPen(const unsigned char ucRed, const unsigned char ucGreen, const unsigned char ucBlue, const int iWidth) {
color colReturn;
ProcessMessage(); // Kludge
colReturn = colPen;
if (penObject != NULL) {
if(DeleteObject(penObject) != TRUE) {
cout << "Fatal Error: Failed to delete penObject in SetPen!" << endl;
}
penObject = NULL;
}
iPenWidth = iWidth;
colPen.ucRed = ucRed;
colPen.ucGreen = ucGreen;
colPen.ucBlue = ucBlue;
// Not the best place to put it, but I didn't want to create
// too many functions to set colors.
SetTextColor(dcActive, RGB(ucRed, ucGreen, ucBlue));
penObject = CreatePen(PS_INSIDEFRAME, iWidth, RGB(ucRed, ucGreen, ucBlue));
return colReturn;
}
void window::SetFont(const int iSize, const unsigned short usStyle, const fontfamily ffFamily, const char *cFontName) {
LOGFONT lf;
ProcessMessage(); // Kludge
memset(&lf, 0, sizeof(LOGFONT));
if(fontObject != NULL) {
if(DeleteObject(fontObject) != TRUE) {
cout << "Fatal Error: Failed to delete fontObject in SetFont!" << endl;
}
fontObject = NULL;
}
lf.lfHeight = iSize;
lf.lfWidth = 0;
lf.lfEscapement = 0;
lf.lfOrientation = 0;
if((usStyle & BOLD) == BOLD) {
lf.lfWeight = FW_BOLD;
} else {
lf.lfWeight = FW_NORMAL;
}
if((usStyle & ITALICIZED) == ITALICIZED) {
lf.lfItalic = true;
} else {
lf.lfItalic = false;
}
if((usStyle & UNDERLINED) == UNDERLINED) {
lf.lfUnderline = true;
} else {
lf.lfUnderline = false;
}
if((usStyle & STRIKEOUT) == STRIKEOUT) {
lf.lfStrikeOut = true;
} else {
lf.lfStrikeOut = false;
}
lf.lfStrikeOut = FALSE;
lf.lfCharSet = DEFAULT_CHARSET;
lf.lfOutPrecision = OUT_DEFAULT_PRECIS;
lf.lfClipPrecision = CLIP_DEFAULT_PRECIS;
lf.lfQuality = DEFAULT_QUALITY;
switch(ffFamily) {
case MODERN:
lf.lfPitchAndFamily = FF_MODERN;
break;
case ROMAN:
lf.lfPitchAndFamily = FF_ROMAN;
break;
case SCRIPT:
lf.lfPitchAndFamily = FF_SCRIPT;
break;
case SWISS:
lf.lfPitchAndFamily = FF_SWISS;
break;
default:
lf.lfPitchAndFamily = FF_DONTCARE;
break;
}
lf.lfPitchAndFamily |= DEFAULT_PITCH;
if(cFontName)
strcpy(lf.lfFaceName, cFontName);
fontObject = CreateFontIndirect(&lf);
}
void window::SetFontStyle() {
fontOldObject = (HFONT) SelectObject(dcActive, fontObject);
}
void window::RestoreFontStyle() {
SelectObject(dcActive, fontOldObject);
}
void window::DrawPixel(const int iX, const int iY) {
HPEN penTemp;
// Cheap trick to change pen width
penTemp = penObject;
penObject = NULL;
penObject = CreatePen(PS_INSIDEFRAME, 1, RGB(colPen.ucRed, colPen.ucGreen, colPen.ucBlue));
DrawLine(iX, iY, iX + 1, iY + 1);
if (penObject != NULL) {
if(DeleteObject(penObject) != TRUE) {
cout << "Fatal Error: Failed to delete penObject in SetPen!" << endl;
}
penObject = NULL;
}
penObject = penTemp;
}
void window::DrawLine(const int iX1, const int iY1, const int iX2, const int iY2, const drawstyle dsStyle) {
ProcessMessage(); // Kludge
switch(dsStyle) {
case FRAME:
ChangeDrawStyle(FRAME);
if(MoveToEx(dcActive, iX1, iY1, NULL) != TRUE) {
cout << "Fatal Error: Failed to MoveToEx in DrawLine!" << endl;
}
if(LineTo(dcActive, iX2, iY2) != TRUE) {
cout << "Fatal Error: Failed to draw in DrawLine!" << endl;
}
RestoreDrawStyle();
break;
default:
cout << "Fatal Error: You have tried to use an invalid or unimplemented drawstyle!" << endl;
break;
}
}
void window::DrawRectangle(const int iX1, const int iY1, const int iX2, const int iY2, const drawstyle dsStyle, const int iWidth, const int iHeight) {
HRGN rgnTemp;
ProcessMessage(); // Kludge
if((iWidth == 0) && (iHeight == 0)) {
switch(dsStyle) {
case FILLED:
ChangeDrawStyle(FILLED);
if(Rectangle(dcActive, iX1, iY1, iX2, iY2) != TRUE) {
cout << "Fatal Error: Failed to draw filled style in DrawRectangle!" << endl;
}
RestoreDrawStyle();
break;
case FRAME:
ChangeDrawStyle(FRAME);
if(Rectangle(dcActive, iX1, iY1, iX2, iY2) != TRUE) {
cout << "Fatal Error: Failed to draw frame style in DrawRectangle!" << endl;
}
RestoreDrawStyle();
break;
case INVERTED:
ChangeDrawStyle(INVERTED);
if(Rectangle(dcActive, iX1, iY1, iX2, iY2) != TRUE) {
cout << "Fatal Error: Failed to draw inverted style in DrawRectangle!" << endl;
}
RestoreDrawStyle();
break;
default:
cout << "Fatal Error: You have tried to use an invalid or unimplemented drawstyle!" << endl;
break;
}
} else {
switch(dsStyle) {
case FILLED:
ChangeDrawStyle(FILLED);
if(RoundRect(dcActive, iX1, iY1, iX2, iY2, iWidth, iHeight) != TRUE) {
cout << "Fatal Error: Failed to draw filled style in DrawRectangle (rounded)!" << endl;
}
RestoreDrawStyle();
break;
case FRAME:
ChangeDrawStyle(FRAME);
if(RoundRect(dcActive, iX1, iY1, iX2, iY2, iWidth, iHeight) != TRUE) {
cout << "Fatal Error: Failed to draw frame style in DrawRectangle (rounded)!" << endl;
}
RestoreDrawStyle();
break;
case INVERTED:
rgnTemp = CreateRoundRectRgn(iX1, iY1, iX2, iY2, iWidth, iHeight);
if(InvertRgn(dcActive,rgnTemp) != TRUE) {
cout << "Fatal Error: Failed to draw inverted style in DrawRectangle (rounded)!" << endl;
}
DeleteObject(rgnTemp);
break;
default:
cout << "Fatal Error: You have tried to use an invalid or unimplemented drawstyle!" << endl;
break;
}
}
}
void window::DrawTriangle(const int iX1, const int iY1, const int iX2, const int iY2, const int iX3, const int iY3, const drawstyle dsStyle) {
HRGN rgnTemp;
POINT ptVertices[3] = {{iX1, iY1}, {iX2, iY2}, {iX3, iY3}};
ProcessMessage(); // Kludge
switch(dsStyle) {
case FILLED:
ChangeDrawStyle(FILLED);
if(Polygon(dcActive, ptVertices, 3) != TRUE) {
cout << "Fatal Error: Failed to draw filled style in DrawTriangle!" << endl;
}
RestoreDrawStyle();
break;
case FRAME:
ChangeDrawStyle(FRAME);
if(Polygon(dcActive, ptVertices, 3) != TRUE) {
cout << "Fatal Error: Failed to draw frame style in DrawTriangle!" << endl;
}
RestoreDrawStyle();
break;
case INVERTED:
rgnTemp = CreatePolygonRgn(ptVertices, 3, WINDING);
if(InvertRgn(dcActive, rgnTemp) != TRUE) {
cout << "Fatal Error: Failed to draw inverted style in DrawTriangle!" << endl;
}
DeleteObject(rgnTemp);
break;
default:
cout << "Fatal Error: You have tried to use an invalid or unimplemented drawstyle!" << endl;
break;
}
}
void window::DrawPolygon(const int* ipX, const int* ipY, const int iVertices, const drawstyle dsStyle) {
HRGN rgnTemp;
POINT *ptVertices;
unsigned short i;
ptVertices = new POINT[iVertices];
if(ptVertices == NULL) {
throw OUT_OF_MEMORY;
}
for(i = 0; i < iVertices; i++) {
ptVertices[i].x = ipX[i];
ptVertices[i].y = ipY[i];
}
ProcessMessage(); // Kludge
switch(dsStyle) {
case FILLED:
ChangeDrawStyle(FILLED);
if(Polygon(dcActive, ptVertices, iVertices) != TRUE) {
cout << "Fatal Error: Failed to draw filled style in DrawPolygon!" << endl;
}
RestoreDrawStyle();
break;
case FRAME:
ChangeDrawStyle(FRAME);
if(Polygon(dcActive, ptVertices, iVertices) != TRUE) {
cout << "Fatal Error: Failed to draw frame style in DrawPolygon!" << endl;
}
RestoreDrawStyle();
break;
case INVERTED:
rgnTemp = CreatePolygonRgn(ptVertices, iVertices, WINDING);
if(InvertRgn(dcActive, rgnTemp) != TRUE) {
cout << "Fatal Error: Failed to draw inverted style in DrawPolygon!" << endl;
}
DeleteObject(rgnTemp);
break;
default:
delete ptVertices;
cout << "Fatal Error: You have tried to use an invalid or unimplemented drawstyle!" << endl;
break;
}
delete ptVertices;
}
void window::DrawCircle(const int iX, const int iY, const int iRadius, const drawstyle dsStyle) {
HRGN rgnTemp;
ProcessMessage(); // Kludge
switch(dsStyle) {
case FILLED:
ChangeDrawStyle(FILLED);
if(Ellipse(dcActive, (iX - iRadius), (iY - iRadius), (iX + iRadius), (iY + iRadius)) != TRUE) {
cout << "Fatal Error: Failed to draw filled style in DrawCircle!" << endl;
}
RestoreDrawStyle();
break;
case FRAME:
ChangeDrawStyle(FRAME);
if(Ellipse(dcActive, (iX - iRadius), (iY - iRadius), (iX + iRadius), (iY + iRadius)) != TRUE) {
cout << "Fatal Error: Failed to draw frame style in DrawCircle!" << endl;
}
RestoreDrawStyle();
break;
case INVERTED:
rgnTemp = CreateEllipticRgn((iX - iRadius), (iY - iRadius), (iX + iRadius), (iY + iRadius));
if(InvertRgn(dcActive, rgnTemp) != TRUE) {
cout << "Fatal Error: Failed to draw inverted style in DrawCircle!" << endl;