virtual void draw( HDC hdc )
{
LVDrawBuf * drawBuf = getCanvas().get();
drawBuf->DrawTo( hdc, 0, 0, 0, NULL);
}
//
// FUNCTION: WndProc(HWND, unsigned, WORD, LONG)
//
// PURPOSE: Processes messages for the main window.
//
// WM_COMMAND - process the application menu
// WM_PAINT - Paint the main window
// WM_DESTROY - post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
int wmId, wmEvent;
PAINTSTRUCT ps;
HDC hdc;
TCHAR szHello[MAX_LOADSTRING];
LoadString(hInst, IDS_HELLO, szHello, MAX_LOADSTRING);
switch (message)
{
case WM_CREATE:
{
LVDocImageRef img = text_view->getPageImage( 0 );
img->getDrawBuf();
UpdateScrollBar(hWnd);
}
break;
case WM_ERASEBKGND:
break;
case WM_VSCROLL:
{
switch (LOWORD(wParam))
{
case SB_TOP:
DoCommand( hWnd, DCMD_BEGIN );
break;
case SB_BOTTOM:
DoCommand( hWnd, DCMD_END );
break;
case SB_LINEDOWN:
DoCommand( hWnd, DCMD_LINEDOWN, 1 );
break;
case SB_LINEUP:
DoCommand( hWnd, DCMD_LINEUP, 1 );
break;
case SB_PAGEDOWN:
DoCommand( hWnd, DCMD_PAGEDOWN, 1 );
break;
case SB_PAGEUP:
DoCommand( hWnd, DCMD_PAGEUP, 1 );
break;
case SB_THUMBPOSITION:
DoCommand( hWnd, DCMD_GO_POS,
text_view->scrollPosToDocPos( HIWORD(wParam) )
);
break;
case SB_THUMBTRACK:
DoCommand( hWnd, DCMD_GO_POS,
text_view->scrollPosToDocPos( HIWORD(wParam) )
);
break;
case SB_ENDSCROLL:
DoCommand( hWnd, DCMD_GO_POS,
text_view->GetPos()
);
break;
}
}
break;
case WM_SIZE:
{
if (wParam!=SIZE_MINIMIZED)
{
text_view->Resize(LOWORD(lParam), HIWORD(lParam));
UpdateScrollBar( hWnd );
}
}
break;
#ifndef WM_MOUSEWHEEL
#define WM_MOUSEWHEEL 0x020A
#define WHEEL_DELTA 120 /* Value for rolling one detent */
#endif
case WM_MOUSEWHEEL:
{
int delta = ((lInt16)HIWORD(wParam))/WHEEL_DELTA;
if (delta<0)
DoCommand( hWnd, DCMD_LINEDOWN, 3 );
else if (delta>0)
DoCommand( hWnd, DCMD_LINEUP, 3 );
}
break;
case WM_KEYDOWN:
{
switch( wParam )
{
case VK_F3:
{
lString8 fn = OpenFileDialog( hWnd );
if ( !fn.empty() )
{
text_view->LoadDocument( fn.c_str() );
text_view->Render();
DoCommand( hWnd, DCMD_BEGIN );
}
}
break;
case VK_F2:
Export(hWnd, false);
break;
case VK_F5:
Export(hWnd, true);
break;
case VK_UP:
DoCommand( hWnd, DCMD_LINEUP, 1 );
break;
case VK_DOWN:
DoCommand( hWnd, DCMD_LINEDOWN, 1 );
break;
case VK_NEXT:
DoCommand( hWnd, DCMD_PAGEDOWN, 1 );
break;
case VK_PRIOR:
DoCommand( hWnd, DCMD_PAGEUP, 1 );
break;
case VK_HOME:
DoCommand( hWnd, DCMD_BEGIN );
break;
case VK_END:
DoCommand( hWnd, DCMD_END );
break;
case VK_ADD:
case VK_SUBTRACT:
{
text_view->ZoomFont( wParam==VK_ADD ? 1 : -1 );
UpdateScrollBar( hWnd );
}
break;
case VK_TAB:
{
bool shift = (GetKeyState( VK_SHIFT ) & 0x8000)!=0;
if ( shift )
text_view->selectPrevPageLink( true );
else
text_view->selectNextPageLink( true );
UpdateScrollBar( hWnd );
}
//Update(hWnd);
break;
case VK_RETURN:
text_view->goSelectedLink();
UpdateScrollBar( hWnd );
break;
case VK_BACK:
text_view->goBack();
UpdateScrollBar( hWnd );
break;
}
}
break;
case WM_LBUTTONDOWN:
{
int xPos = lParam & 0xFFFF;
int yPos = (lParam >> 16) & 0xFFFF;
ldomXPointer ptr = text_view->getNodeByPoint( lvPoint( xPos, yPos ) );
if ( !ptr.isNull() ) {
if ( ptr.getNode()->isText() ) {
ldomXRange * wordRange = new ldomXRange();
if ( ldomXRange::getWordRange( *wordRange, ptr ) ) {
wordRange->setFlags( 0x10000 );
text_view->getDocument()->getSelections().clear();
text_view->getDocument()->getSelections().add( wordRange );
text_view->updateSelections();
UpdateScrollBar( hWnd );
} else {
delete wordRange;
}
}
}
}
break;
case WM_COMMAND:
wmId = LOWORD(wParam);
wmEvent = HIWORD(wParam);
// Parse the menu selections:
switch (wmId)
{
case IDM_ABOUT:
DialogBox(hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, (DLGPROC)About);
break;
case IDM_EXIT:
DestroyWindow(hWnd);
break;
case ID_ZOOM_IN:
case ID_ZOOM_OUT:
{
text_view->ZoomFont( wParam==ID_ZOOM_IN ? 1 : -1 );
UpdateScrollBar( hWnd );
}
break;
case IDM_FILE_OPEN:
{
lString8 fn = OpenFileDialog( hWnd );
if ( !fn.empty() )
{
text_view->LoadDocument( fn.c_str() );
text_view->Render();
DoCommand( hWnd, DCMD_BEGIN );
}
}
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
break;
case WM_PAINT:
{
hdc = BeginPaint(hWnd, &ps);
LVDocImageRef img = text_view->getPageImage( 0 );
LVDrawBuf * drawBuf = img->getDrawBuf();
/*
ldomXRangeList links;
ldomXRangeList & sel = text_view->getDocument()->getSelections();
text_view->getCurrentPageLinks( links );
int linkCount = links.length();
if ( linkCount ) {
sel.clear();
sel.add( new ldomXRange(*links[0]) );
for ( int i=0; i<linkCount; i++ ) {
lString16 txt = links[i]->getRangeText();
lString8 txt8 = UnicodeToLocal( txt );
const char * s = txt8.c_str();
txt.clear();
}
linkCount++;
text_view->updateSelections();
}
*/
drawBuf->DrawTo( hdc, 0, 0, 0, NULL);
//COLORREF pal[4]={0xFFFFFF, 0xAAAAAA, 0x555555, 0x000000};
//DrawBuf2DC( hdc, 0, 0, text_view->GetDrawBuf(), pal, 1 );
EndPaint(hWnd, &ps);
}
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}