LRESULT CALLBACK MainWindow::MainWndProc (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
static HDC hdc_mem;
static HDC hdc;
static PAINTSTRUCT ps;
static SCROLLINFO si;
static TEXTMETRIC tm;
static HPEN strokePen = CreatePen(PS_SOLID, 1, RGB(255,0,0));
//Static variables for drawing
static bool isDrawing = FALSE;
static int StartX, StartY;
static int EndX, EndY;
static UINT iButtonState;
//Static variables for mouse Co-ordinates
static int xMouse, yMouse;
xMouse = GET_X_LPARAM(lParam);
yMouse = GET_Y_LPARAM(lParam);
static HBRUSH newbrush;
//Child Window Handles
MainWindow create;
RECT rect;
// Size and position variables
static int iSysWidth;
static int iSysHeight;
static int iWinWidth;
static int iWinHeight;
static int cxChar;
static int cyChar;
static int iWidth = 60; // Button width
static int iHeight = 30; // Button height
static int iListBoxWidth = 300;
static int iListBoxHeight = 360;
// Size and position variables
static int x, y;
hdc = GetDC(hwnd);
GetTextMetrics(hdc, &tm);
cxChar = tm.tmAveCharWidth;
cyChar = tm.tmHeight;
ReleaseDC(hwnd, hdc);
//for Bezier
static POINT apt[4];
//bool variables
bool white = false;
bool green = false;
bool red = false;
bool black = false;
hProgramInstance = (HINSTANCE)GetWindowLong(hwnd, GWL_HINSTANCE);
HBITMAP logo = NULL;
BITMAP bitmap;
logo = (HBITMAP)LoadImage(hProgramInstance, L"standard.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
GetObject(logo, sizeof(bitmap), &bitmap);
switch (msg)
{
case WM_CREATE:
{
create.Create(hProgramInstance,hwnd,lParam,logo);
Exo.CreateStandardToolbar(hwnd, Exo.m_hInstance);
SendMessage(Exo.hWndToolbar, TB_SETSTATE, IDC_MAINCURSOR, TBSTATE_CHECKED | TBSTATE_ENABLED);
}
break;
case WM_GETMINMAXINFO:
{
LPMINMAXINFO pInfo = (LPMINMAXINFO) lParam;
pInfo -> ptMaxTrackSize.x = 450;
pInfo -> ptMaxTrackSize.y = 650;
}
break;
case WM_SIZE:
iWidth = LOWORD(lParam);
iHeight = HIWORD(lParam);
// Set vertical scroll bar range and page size
si.cbSize = sizeof(si);
si.fMask = SIF_RANGE | SIF_PAGE;
si.nMin = 0;
si.nMax = ((iMinWindowHeight - 70) / cyChar);
si.nPage = iHeight / cyChar;
SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
// Set horizontal scroll bar range and page size
si.cbSize = sizeof(si);
si.fMask = SIF_RANGE | SIF_PAGE;
si.nMin = 0;
si.nMax = ((iMinWindowWidth - 20) / cxChar);
si.nPage = iWidth / cxChar;
SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
//Child window reposition
MoveWindow(hwndButton,20,510,iListBoxWidth+90, iListBoxHeight-335, TRUE);
MoveWindow(hwndWidthSlider, 20, 35, iListBoxWidth - 150, 10, TRUE);
MoveWindow(hwndFillColor, 260, 35, iListBoxWidth - 150, 10, TRUE);
GetWindowRect(hwnd, &rect);
iWinWidth = rect.right - rect.left;
iWinHeight = rect.bottom - rect.top;
iSysWidth = GetSystemMetrics(SM_CXSCREEN);
iSysHeight = GetSystemMetrics(SM_CYSCREEN);
apt[0].x = iWidth / 7 ;
apt[0].y = iHeight / 2 ;
apt[1].x = iWidth / 5;
apt[1].y = iHeight / 7 ;
apt[2].x = iWidth / 2 ;
apt[2].y = 3 * iHeight / 4 ;
apt[3].x = 3 * iWidth / 4 ;
apt[3].y = iHeight / 2 ;
break;
case WM_VSCROLL:
// Get all the vertical scroll bar information
si.cbSize = sizeof(si);
si.fMask = SIF_ALL;
GetScrollInfo(hwnd, SB_VERT, &si);
// Save the position for later comparison
y = si.nPos;
switch(LOWORD(wParam))
{
case SB_TOP:
si.nPos = si.nMin;
break;
case SB_BOTTOM:
si.nPos = si.nMax;
break;
case SB_LINEUP:
si.nPos -= 1;
break;
case SB_LINEDOWN:
si.nPos += 1;
break;
case SB_PAGEUP:
si.nPos -= si.nPage;
break;
case SB_PAGEDOWN:
si.nPos += si.nPage;
break;
case SB_THUMBTRACK:
si.nPos = si.nTrackPos;
break;
default:
break;
}
// Set the position and then retrieve it
si.fMask = SIF_POS;
SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
GetScrollInfo(hwnd, SB_VERT, &si);
// If the position has changed, scroll the window and update it
if(si.nPos != y)
{
ScrollWindow(hwnd, 0, cyChar * (y - si.nPos), NULL, NULL);
UpdateWindow(hwnd);
}
break;
case WM_CTLCOLORSTATIC:
SetTextColor((HDC)wParam, RGB(150, 100, 255));
SetBkMode((HDC)wParam, TRANSPARENT);
newbrush = (HBRUSH)GetStockObject(NULL_BRUSH);
DeleteObject(newbrush);
return (LRESULT)newbrush;
break;
case WM_HSCROLL:
GetWindowRect(hwnd, &rect);
iWinWidth = rect.right - rect.left;
iWinHeight = rect.bottom - rect.top;
iSysWidth = GetSystemMetrics(SM_CXSCREEN);
iSysHeight = GetSystemMetrics(SM_CYSCREEN);
// Get all the vertical scroll bar information
si.cbSize = sizeof(si);
si.fMask = SIF_ALL;
GetScrollInfo(hwnd, SB_HORZ, &si);
// Save the position for later comparison
x = si.nPos;
if(GetWindowLong((HWND)lParam, GWL_ID) == IDC_BACKGROUND_SCROLL)
{
switch(LOWORD(wParam))
{
case SB_PAGEDOWN:
alfa += DELTA_COLOR;
break;
case SB_LINEDOWN:
alfa = min(255, alfa+1);
break;
case SB_PAGEUP:
alfa -= DELTA_COLOR;
break;
case SB_LINEUP:
alfa = max(0, alfa-1);
break;
case SB_TOP:
alfa = 0;
break;
case SB_BOTTOM:
alfa = 255;
break;
case SB_THUMBPOSITION:
break;
case SB_THUMBTRACK:
alfa = HIWORD(wParam);
break;
default: break;
}
SetScrollPos(hwndWidthSlider, SB_CTL, alfa, TRUE);
}
if(GetWindowLong((HWND)lParam, GWL_ID) == IDC_FILL_COLOR)
{
switch(LOWORD(wParam))
{
case SB_PAGEDOWN:
fill += DELTA_COLOR;
break;
case SB_LINEDOWN:
fill = min(255, fill+1);
break;
case SB_PAGEUP:
fill -= DELTA_COLOR;
break;
case SB_LINEUP:
fill = max(0, fill-1);
break;
case SB_TOP:
fill = 0;
break;
case SB_BOTTOM:
fill = 255;
break;
case SB_THUMBPOSITION:
break;
case SB_THUMBTRACK:
fill = HIWORD(wParam);
break;
default: break;
}
SetScrollPos(hwndFillColor, SB_CTL, fill, TRUE);
}
switch(LOWORD(wParam))
{
case SB_LINELEFT:
si.nPos -= 1;
break;
case SB_LINERIGHT:
si.nPos += 1;
break;
case SB_PAGELEFT:
si.nPos -= si.nPage;
break;
case SB_PAGERIGHT:
si.nPos += si.nPage;
break;
case SB_THUMBPOSITION:
si.nPos = si.nTrackPos;
break;
default:break;
}
// Set the position and then retrieve it
si.fMask = SIF_POS;
SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
GetScrollInfo(hwnd, SB_HORZ, &si);
// If the position has changed, scroll the window and update it
if(si.nPos != x)
{
ScrollWindow(hwnd, cxChar * (x - si.nPos), 0, NULL, 0);
UpdateWindow(hwnd);
}
break;
case WM_COMMAND:
//Initialazing OnCommand Function
HANDLE_WM_COMMAND(hwnd, wParam, lParam, OnCommand);
switch(LOWORD(wParam))
{
case IDC_CLEAR:
{
//Cleaning the working area
InvalidateRect(hwnd, &Recto, FALSE);
InvalidateRect(hwnd, &Recto, TRUE);
}
break;
case IDM_FILE_NEW:
SendMessage(Exo.hWndToolbar, TB_SETSTATE, IDM_FILE_NEW, TBSTATE_CHECKED | TBSTATE_ENABLED);
white = TRUE;
break;
case IDM_FILE_OPEN:
SendMessage(Exo.hWndToolbar, TB_SETSTATE, IDM_FILE_OPEN, TBSTATE_CHECKED | TBSTATE_ENABLED);
green = TRUE;
break;
case IDM_FILE_SAVE:
SendMessage(Exo.hWndToolbar, TB_SETSTATE, IDM_FILE_SAVE, TBSTATE_CHECKED | TBSTATE_ENABLED);
black = TRUE;
break;
case IDM_FILE_PRINT:
red = TRUE;
SendMessage(Exo.hWndToolbar, TB_SETSTATE, IDM_FILE_PRINT, TBSTATE_CHECKED | TBSTATE_ENABLED);
break;
case IDM_FILE_EXIT:
PostQuitMessage(WM_QUIT);
break;
case IDM_DRAW_FREEHAND:
SendMessage(Exo.hWndToolbar, TB_SETSTATE, IDM_DRAW_FREEHAND, TBSTATE_CHECKED | TBSTATE_ENABLED);
Exo.ChangeCurrentCursor(hwnd, MAKEINTRESOURCE(IDC_FREEHAND));
break;
case IDM_DRAW_LINE:
SendMessage(Exo.hWndToolbar, TB_SETSTATE, IDM_DRAW_LINE, TBSTATE_CHECKED | TBSTATE_ENABLED);
Exo.ChangeCurrentCursor(hwnd, MAKEINTRESOURCE(IDC_FREEHAND));
break;
case IDM_DRAW_POLYLINE:
SendMessage(Exo.hWndToolbar, TB_SETSTATE, IDM_DRAW_POLYLINE, TBSTATE_CHECKED | TBSTATE_ENABLED);
Exo.ChangeCurrentCursor(hwnd, MAKEINTRESOURCE(IDC_FREEHAND));
break;
case IDM_DRAW_RECTANGLE:
SendMessage(Exo.hWndToolbar, TB_SETSTATE, IDM_DRAW_RECTANGLE, TBSTATE_CHECKED | TBSTATE_ENABLED);
Exo.ChangeCurrentCursor(hwnd, MAKEINTRESOURCE(IDC_RECTANGLE));
break;
case IDM_DRAW_CIRCLE:
SendMessage(Exo.hWndToolbar, TB_SETSTATE, IDM_DRAW_CIRCLE, TBSTATE_CHECKED | TBSTATE_ENABLED);
Exo.ChangeCurrentCursor(hwnd, MAKEINTRESOURCE(IDC_CIRCLE));
break;
case IDM_DRAW_BEZIER:
SendMessage(Exo.hWndToolbar, TB_SETSTATE, IDM_DRAW_BEZIER, TBSTATE_CHECKED | TBSTATE_ENABLED);
Exo.ChangeCurrentCursor(hwnd, MAKEINTRESOURCE(IDC_CIRCLE));
myBezier.DrawBezier(hdc, apt);
break;
case IDM_ERAZER:
SendMessage(Exo.hWndToolbar, TB_SETSTATE, IDM_ERAZER, TBSTATE_CHECKED | TBSTATE_ENABLED);
Exo.ChangeCurrentCursor(hwnd, MAKEINTRESOURCE(IDC_ERAZER));
break;
}
break;
//The following 3 cases are for drawing lines in my drawing area
case WM_LBUTTONDOWN:
if (xMouse > 20 && xMouse < 410 && yMouse > 50 && yMouse < 500 )
{
//Draw freehand
if( SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_DRAW_FREEHAND, 0) & TBSTATE_CHECKED )
{
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_NEW, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen,RGB(0,0,255), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_OPEN, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,255,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_SAVE, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_PRINT, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(255,0,0), alfa);
hdc = GetDC(hwnd);
StartX = LOWORD(lParam);
StartY = HIWORD(lParam);
EndX = LOWORD(lParam);
EndY = HIWORD(lParam);
SetROP2(hdc, R2_XORPEN);
MoveToEx(hdc, StartX, StartY, NULL);
LineTo(hdc, EndX, EndY);
isDrawing = TRUE;
ReleaseDC(hwnd, hdc);
Exo.DeleteObjectHPEN(strokePen);
}
// If the Line button is down, draw with it
if( SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_DRAW_LINE, 0) & TBSTATE_CHECKED )
{
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_NEW, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,255), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_OPEN, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,255,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_SAVE, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_PRINT, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(255,0,0), alfa);
hdc = GetDC(hwnd);
StartX = LOWORD(lParam);
StartY = HIWORD(lParam);
EndX = LOWORD(lParam);
EndY = HIWORD(lParam);
MoveToEx(hdc, StartX, StartY, NULL);
LineTo(hdc, EndX, EndY);
}
//Draw PolyLines
if( SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_DRAW_POLYLINE, 0) & TBSTATE_CHECKED )
{
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_NEW, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,255), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_OPEN, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,255,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_SAVE, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_PRINT, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(255,0,0), alfa);
hdc = GetDC(hwnd);
StartX = LOWORD(lParam);
StartY = HIWORD(lParam);
EndX = LOWORD(lParam);
EndY = HIWORD(lParam);
MoveToEx(hdc, StartX, StartY, NULL);
LineTo(hdc, EndX, EndY);
}
//Draw Rectangle
if((SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_DRAW_RECTANGLE, 0) & TBSTATE_CHECKED))
{
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_NEW, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,255), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_OPEN, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,255,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_SAVE, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_PRINT, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(255,0,0), alfa);
hdc = GetDC(hwnd);
StartX = LOWORD(lParam);
StartY = HIWORD(lParam);
SetBkMode(hdc,TRANSPARENT);
EndX = LOWORD(lParam);
EndY = HIWORD(lParam);
SetROP2(hdc, R2_NOP);
MoveToEx(hdc, StartX, StartY, NULL);
Rectangle(hdc, StartX, StartY, EndX, EndY);
ReleaseDC(hwnd, hdc);
}
//Draw Circle
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_DRAW_CIRCLE, 0) & TBSTATE_CHECKED)
{
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_NEW, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,255), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_OPEN, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,255,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_SAVE, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_PRINT, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(255,0,0), alfa);
hdc = GetDC(hwnd);
StartX = LOWORD(lParam);
StartY = HIWORD(lParam);
SetBkMode(hdc,TRANSPARENT);
EndX = LOWORD(lParam);
EndY = HIWORD(lParam);
SetROP2(hdc, R2_NOP);
MoveToEx(hdc, StartX, StartY, NULL);
Ellipse(hdc, StartX, StartY, EndX, EndY);
ReleaseDC(hwnd, hdc);
}
//Eraser
if( SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_ERAZER, 0) & TBSTATE_CHECKED )
{
strokePen = CreatePen(PS_SOLID, alfa, RGB(246, 245, 243));
SelectObject(hdc, strokePen);
hdc = GetDC(hwnd);
StartX = LOWORD(lParam);
StartY = HIWORD(lParam);
EndX = LOWORD(lParam);
EndY = HIWORD(lParam);
SetROP2(hdc, R2_XORPEN);
MoveToEx(hdc, StartX, StartY, NULL);
LineTo(hdc, EndX, EndY);
isDrawing = TRUE;
ReleaseDC(hwnd, hdc);
DeleteObject(strokePen);
}
isDrawing = TRUE;
ReleaseDC(hwnd, hdc);
}
break;
case WM_MOUSEMOVE:
if (xMouse > 20 && xMouse < 410 && yMouse > 50 && yMouse < 500 )
{
hdc = GetDC(hwnd);
if(isDrawing == TRUE )
{
if( SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_DRAW_LINE, 0) & TBSTATE_CHECKED )
{
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_NEW, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,255), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_OPEN, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,255,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_SAVE, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_PRINT, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(255,0,0), alfa);
SetROP2(hdc, R2_NOTXORPEN);
MoveToEx(hdc, StartX, StartY, NULL);
LineTo(hdc, EndX, EndY);
EndX = LOWORD(lParam);
EndY = HIWORD(lParam);
MoveToEx(hdc, StartX, StartY, NULL);
LineTo(hdc, EndX, EndY);
}
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_DRAW_FREEHAND, 0) & TBSTATE_CHECKED )
{
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_NEW, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,255), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_OPEN, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,255,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_SAVE, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_PRINT, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(255,0,0), alfa);
MoveToEx(hdc, EndX, EndY, NULL);
EndX = LOWORD(lParam);
EndY = HIWORD(lParam);
LineTo(hdc, EndX, EndY);
}
if( SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_DRAW_POLYLINE, 0) & TBSTATE_CHECKED )
{
if(wParam & MK_RBUTTON)
isDrawing = false;
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_NEW, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,255), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_OPEN, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,255,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_SAVE, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_PRINT, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(255,0,0), alfa);
EndX = LOWORD(lParam);
EndY = HIWORD(lParam);
MoveToEx(hdc, StartX, StartY, NULL);
LineTo(hdc, EndX, EndY);;
}
if((SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_DRAW_RECTANGLE, 0) & TBSTATE_CHECKED))
{
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_NEW, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,255), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_OPEN, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,255,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_SAVE, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_PRINT, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(255,0,0), alfa);
HBRUSH brush = CreateSolidBrush(RGB(fill,fill-100,145));
SelectObject(hdc, brush);
SetROP2(hdc, R2_NOTXORPEN);
SetBkMode(hdc,TRANSPARENT);
MoveToEx(hdc, StartX, StartY, NULL);
Rectangle(hdc, StartX, StartY, EndX, EndY);
EndX = LOWORD(lParam);
EndY = HIWORD(lParam);
MoveToEx(hdc, StartX, StartY, NULL);
Rectangle(hdc, StartX, StartY, EndX, EndY);
DeleteObject(brush);
}
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_DRAW_CIRCLE, 0) & TBSTATE_CHECKED)
{
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_NEW, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,255), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_OPEN, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,255,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_SAVE, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(0,0,0), alfa);
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_PRINT, 0) & TBSTATE_CHECKED)
Exo.ChangeCurrentColor(hdc,strokePen, RGB(255,0,0), alfa);
HBRUSH brush = CreateSolidBrush(RGB(fill,fill-100,145));
SelectObject(hdc, brush);
SetROP2(hdc, R2_NOTXORPEN);
MoveToEx(hdc, StartX, StartY, NULL);
Ellipse(hdc, StartX, StartY, EndX, EndY);
EndX = LOWORD(lParam);
EndY = HIWORD(lParam);
MoveToEx(hdc, StartX, StartY, NULL);
Ellipse(hdc, StartX, StartY, EndX, EndY);
DeleteObject(brush);
}
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_DRAW_BEZIER, 0) & TBSTATE_CHECKED)
{
if (wParam & MK_LBUTTON || wParam & MK_RBUTTON)
{
HGDIOBJ original = NULL;
//Saving the original object
original = SelectObject(hdc,GetStockObject(DC_PEN));
SelectObject(hdc, GetStockObject(DC_PEN));
SetDCPenColor(hdc, RGB(246, 245, 243));
myBezier.DrawBezier (hdc, apt) ;
if (wParam & MK_LBUTTON)
{
apt[1].x = LOWORD (lParam) ;
apt[1].y = HIWORD (lParam) ;
}
else if (wParam & MK_RBUTTON)
{
apt[2].x = LOWORD (lParam) ;
apt[2].y = HIWORD (lParam) ;
}
SelectObject (hdc, GetStockObject(BLACK_PEN)) ;
myBezier.DrawBezier (hdc, apt) ;
ReleaseDC (hwnd, hdc) ;
DeleteObject(original);
}
}
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_ERAZER, 0) & TBSTATE_CHECKED )
{
strokePen = CreatePen(PS_SOLID, alfa, RGB(246, 245, 243));
SelectObject(hdc, strokePen);
MoveToEx(hdc, EndX, EndY, NULL);
EndX = LOWORD(lParam);
EndY = HIWORD(lParam);
LineTo(hdc, EndX, EndY);
Exo.DeleteObjectHPEN(strokePen);
}
}
ReleaseDC(hwnd, hdc);
}
break;
case WM_LBUTTONUP:
if (xMouse > 20 && xMouse < 410 && yMouse > 50 && yMouse < 500 )
{
hdc = GetDC(hwnd);
EndX = LOWORD(lParam);
EndY = HIWORD(lParam);
SetROP2(hdc, R2_XORPEN);
MoveToEx(hdc, StartX, StartY, NULL);
LineTo(hdc, EndX, EndY);
if( SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_NEW, 0) & TBSTATE_CHECKED )
{
isDrawing = FALSE;
white = FALSE;
}
if( SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_OPEN, 0) & TBSTATE_CHECKED )
{
isDrawing = FALSE;
green = FALSE;
}
if( SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_SAVE, 0) & TBSTATE_CHECKED )
{
isDrawing = FALSE;
black = FALSE;
}
if( SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_FILE_PRINT, 0) & TBSTATE_CHECKED )
{
isDrawing = FALSE;
red = FALSE;
}
if( SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_DRAW_LINE, 0) & TBSTATE_CHECKED )
{
isDrawing = FALSE;
}
if( SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_DRAW_POLYLINE, 0) & TBSTATE_CHECKED)
{
isDrawing = FALSE;
}
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_DRAW_FREEHAND, 0) & TBSTATE_CHECKED )
{
isDrawing = FALSE;
}
if((SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_DRAW_RECTANGLE, 0) & TBSTATE_CHECKED))
{
SetBkMode(hdc,TRANSPARENT);
Rectangle(hdc, StartX, StartY, EndX, EndY);
isDrawing = FALSE;
}
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_DRAW_CIRCLE, 0) & TBSTATE_CHECKED)
{
isDrawing = FALSE;
}
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_DRAW_BEZIER, 0) & TBSTATE_CHECKED)
{
isDrawing = FALSE;
}
if(SendMessage(Exo.hWndToolbar, TB_GETSTATE, IDM_ERAZER, 0) & TBSTATE_CHECKED)
{
isDrawing = FALSE;
}
ReleaseDC(hwnd, hdc);
}
break;
case WM_PAINT:
hdc = BeginPaint(hwnd, &ps);
GetClientRect(hwnd , &rect);
hdc_mem = CreateCompatibleDC(hdc);
SelectObject(hdc_mem, logo);
BitBlt(hdc, 15, 540, bitmap.bmWidth, bitmap.bmHeight, hdc_mem, 0, 0, SRCCOPY);
DeleteObject(hdc_mem);
//Creating Draw Area
DrawEdge(hdc, &Recto, BDR_RAISEDOUTER | BDR_SUNKENINNER, BF_RECT);
EndPaint(hwnd, &ps);
break;
//Handle the combinations from the keyboard input
case WM_KEYDOWN:
{
switch(wParam)
{
case KEY_S:
isDrawing = FALSE;
break;
case KEY_Q:
{
if(GetAsyncKeyState(VK_LCONTROL))
{
//If Q + LCTRL then Exit
PostQuitMessage(0);
}
}
break;
case KEY_C:
{
if(GetAsyncKeyState(VK_LSHIFT))
{
//If C + LShift then cleaning the drawingarea
InvalidateRect(hwnd, &Recto, FALSE);
InvalidateRect(hwnd, &Recto, TRUE);
}
}
break;
}
}
break;
case WM_DESTROY:
PostQuitMessage (0);
DeleteObject(logo);
DeleteObject(strokePen);
break;
default:
return DefWindowProc (hwnd, msg, wParam, lParam);
}
return 0;
}
