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// File: WNT_IconBox_1.cxx
// Copyright: Open Cascade 2008
#include <windows.h>
#include <WNT_IconBox.hxx>
#include <WNT_GraphicDevice.hxx>
#include <WNT_ImageManager.hxx>
#include <WNT_Icon.hxx>
#define X_SPACING 10
#define Y_SPACING 10
//=======================================================================
//function : HandleEvent
//purpose :
//=======================================================================
WNT_Long WNT_IconBox::HandleEvent (
const Aspect_Handle hwnd,
const WNT_Uint& uMsg,
const WNT_Dword& wParam,
const WNT_Dword& lParam
)
{
switch ( uMsg ) {
case WM_SIZE : {
int len;
RECT r;
SCROLLINFO si;
GetClientRect ( ( HWND )hwnd, &r );
myIncX = myIconWidth + X_SPACING + 6;
myNX = r.right / myIncX;
if ( myNX == 0 ) ++myNX;
myIncY = myIconHeight + Y_SPACING + 11 + myIconHeight / Y_SPACING;
myNY = r.bottom / myIncY;
if ( myNY == 0 ) ++myNY;
len = myImages -> Size ();
if ( myNX * myNY >= len )
ShowScrollBar ( ( HWND )hwnd, SB_VERT, FALSE );
else {
si.cbSize = sizeof ( SCROLLINFO );
si.fMask = SIF_POS | SIF_RANGE;
si.nPos = myNPos = 0;
si.nMin = 0;
si.nMax = myMaxPos = len / myNX;
SetScrollInfo ( ( HWND )hwnd, SB_VERT, &si, TRUE );
ShowScrollBar ( ( HWND )hwnd, SB_VERT, TRUE );
myStart = 1;
} // end else
return 0;
} // WM_SIZE
case WM_VSCROLL : {
int nCurPos;
int nScrollCode;
int newStart;
int len;
SCROLLINFO si;
nScrollCode = ( Standard_Integer )LOWORD( wParam );
len = myImages -> Size ();
switch ( nScrollCode ) {
case SB_LINEUP :
case SB_PAGEUP :
newStart = myStart - myNX;
myStart = newStart >= 1 ? --myNPos, newStart : ( ( myNPos = 0 ), 1 );
break;
case SB_LINEDOWN :
case SB_PAGEDOWN :
newStart = myStart + myNX;
myStart = ( newStart <= len - myNX + 1 ) ? ( ++myNPos, newStart ) :
( ( myNPos = myMaxPos ),
( len - myNX + 1 )
);
break;
case SB_THUMBTRACK :
myNPos = ( Standard_Integer )HIWORD( wParam );
myStart = myNPos * myNX;
break;
case SB_ENDSCROLL :
return 0;
} // end switch
if ( myStart == 0 ) ++myStart;
nCurPos = GetScrollPos ( ( HWND )hwnd, SB_VERT );
if ( nCurPos == myNPos ) return 0;
si.cbSize = sizeof ( SCROLLINFO );
si.fMask = SIF_POS;
si.nPos = myNPos;
SetScrollInfo ( ( HWND )hwnd, SB_VERT, &si, TRUE );
InvalidateRect ( ( HWND )hwnd, NULL, TRUE );
return 0;
} // WM_VSCROLL
case WM_PAINT : {
HDC hDCsrc, hDCdst;
PAINTSTRUCT ps;
HPEN hOldPen = NULL;
HFONT hOldFont = NULL;
HPALETTE hOldPal = NULL;
int i, j, x, y, ow, oh, cnt, len;
Handle( WNT_Icon ) icon;
Handle( WNT_GraphicDevice ) gDev = Handle( WNT_GraphicDevice ) ::
DownCast ( GraphicDevice () );
if ( !myDragging ) {
hDCdst = BeginPaint ( ( HWND )hwnd, &ps );
hDCsrc = CreateCompatibleDC ( hDCdst );
if ( gDev -> IsPaletteDevice () ) {
hOldPal = SelectPalette ( hDCdst, ( HPALETTE )( gDev -> HPalette () ), FALSE );
RealizePalette ( hDCdst );
} // end if
len = myImages -> Size ();
hOldPen = SelectPen ( hDCdst, myPen );
hOldFont = SelectFont ( hDCdst, myFont );
SetTextAlign ( hDCdst, TA_CENTER | TA_TOP );
SetStretchBltMode ( hDCdst, COLORONCOLOR );
for ( i = 0, y = Y_SPACING, cnt = myStart; i < myNY; ++i, y += myIncY )
for ( j = 0, x = X_SPACING; j < myNX; ++j, ++cnt, x += myIncX ) {
if ( cnt > len ) goto exit_display;
icon = Handle( WNT_Icon ) :: DownCast ( myImages -> Image ( cnt ) );
if ( icon.IsNull () ) continue;
myImages -> Dim ( cnt, ow, oh );
SelectBitmap ( hDCsrc, icon -> myImage );
Rectangle ( hDCdst, x, y, x + myIconWidth + 4, y + myIconHeight + 4 );
TextOut (
hDCdst, x + myIconWidth / 2, y + myIconHeight + 10,
icon -> myName, strlen ( icon -> myName )
);
StretchBlt (
hDCdst, x + 2, y + 2, myIconWidth, myIconHeight,
hDCsrc, 0, 0, ow, oh,
SRCCOPY
);
} // end for
exit_display:
SelectFont ( hDCdst, hOldFont );
SelectPen ( hDCdst, hOldPen );
if ( gDev -> IsPaletteDevice () )
SelectPalette ( hDCdst, hOldPal, FALSE );
DeleteDC ( hDCsrc );
EndPaint ( ( HWND )hwnd, &ps );
return 0;
} else
return DefWindowProc ( ( HWND )hwnd, uMsg, wParam, lParam );
} // WM_PAINT
case WM_ENTERSIZEMOVE :
myDragging = TRUE;
return 0;
case WM_EXITSIZEMOVE :
myDragging = FALSE;
InvalidateRect ( ( HWND )hwnd, NULL, TRUE );
return 0;
case WM_QUERYNEWPALETTE: {
HDC hDC = GetDC ( ( HWND )hwnd );
WINDOW_DATA* wd = (WINDOW_DATA* )GetWindowLongPtr ((HWND )hwnd, GWLP_USERDATA);
SelectPalette ( hDC, wd -> hPal, FALSE );
// if ( RealizePalette ( hDC ) );
if ( RealizePalette ( hDC ) )
InvalidateRect ( ( HWND )hwnd, NULL, FALSE );
ReleaseDC ( ( HWND )hwnd, hDC );
return TRUE;
} // WM_QUERYNEWPALETTE
case WM_PALETTECHANGED:
if ( hwnd != ( HWND )wParam ) {
HDC hDC = GetDC ( ( HWND )hwnd );
WINDOW_DATA* wd = (WINDOW_DATA* )GetWindowLongPtr ((HWND )hwnd, GWLP_USERDATA);
SelectPalette ( hDC, wd -> hPal, TRUE );
if ( RealizePalette ( hDC ) )
UpdateColors ( hDC );
ReleaseDC ( ( HWND )hwnd, hDC );
return 0;
} // end if
default:
return DefWindowProc ( ( HWND )hwnd, uMsg, wParam, lParam );
} // end switch
} // end WNT_IconBox :: HandleEvent
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