Implement iBook-like paging through VC and GDI +

 
Void cgdiplustestview: ondraw (CDC * PDC)
{
Cgdiplustestdoc * pdoc = getdocument ();
Assert_valid (pdoc );
// Todo: Add draw code for native data here
// Device context for painting

CDC dcmemory;
Dcmemory. createcompatibledc (null );
Crect bkrect;
Getclientrect (& bkrect );
Cbitmap bitmap;
Bitmap. createcompatiblebitmap (PDC, bkrect. Width (), bkrect. Height ());
SelectObject (dcmemory. getsafehdc (), bitmap );

Topframe = (bkrect. Height ()-height)/2;
Leftframe = (bkrect. Width ()-2 * width)/2;

Image
L1image (L "pages/1.jpg", false ),
L2image (L "pages/2.jpg", false ),
L3image (L "pages/1.jpg", false ),
L4image (L "pages/2.jpg", false );

Graphics graphics (dcmemory. m_hdc );

Graphics. drawimage (& l1image, leftframe, topframe, width, height );
Graphics. drawimage (& l2image, leftframe + width, topframe, width, height );

Pen (color: Black); // you can specify a paint brush.

Solidbrush brush (color: Black); // you can specify a paint brush.

// Set the output font

Fontfamily (L "");

Font font (& fontfamily, 12, fontstyleregular, unitpoint );

Stringformat strfmt;

Rectf (leftframe + 25, topframe + 25,280,400 );
Rectf rectf2 (leftframe + 50 + width, topframe + 25,280,450 );
Rectf rectf3 (0, 0,280,450 );
 
Color clrpen (0, 0, 0 );
Pen pendraw (clrpen, 0 );

Graphics. drawstring (context, 1024, & font, rectf, & strfmt, & brush );
Graphics. drawstring (context, 1024, & font, rectf2, & strfmt, & brush );

Float undersideoffset = width;
Double A = 45 + (45 * m_x)/width;
Double radians = A * (3.14/180.0 );
Double pageundersiderotationangle = (180-(2 * ));
Float calculated_y = (m_x) * (TAN (radians ));
Float calculated_x = 0;

Graphicspath gpleft, gpright;
//////////////////////////////////////// /// // 2
If (calculated_y {
Gpleft. addline (pointf (ABS (width-m_x + undersideoffset), height), pointf (width + undersideoffset, height ));
Gpleft. addline (pointf (width + undersideoffset, height), pointf (width + undersideoffset, (height-(float) calculated_y )));
} Else
{
Gpleft. addline (pointf (ABS (width-m_x + undersideoffset), height), pointf (width + undersideoffset, height ));
Gpleft. addline (pointf (width + undersideoffset, height), pointf (width + undersideoffset, 0 ));
Calculated_x = height/TAN (radians );
Gpleft. addline (pointf (width + undersideoffset, 0), pointf (ABS (width-(m_x-(float) calculated_x) + undersideoffset), 0 ));
}

Gpleft. closefigure ();

Matrix pathtranslationmatrix;
Pathtranslationmatrix. Translate (float) leftframe, (float) topframe );
Gpleft. Transform (& pathtranslationmatrix );

Region oldregion;
Graphics. getclip (& oldregion );

Graphics. setclip (& gpleft );
 
Graphics. drawpath (& pendraw, & gpleft );
Graphics. drawimage (& l4image, leftframe + width, topframe, width, height );

Graphics. setclip (& oldregion );
//////////////////////////////////////// /// // 3
Bitmap pageundersideimage (width, height );
Undersideoffset = width;
// If (height <calculated_y)
{
Gpright. addline (pointf (ABS (width-m_x-undersideoffset), height ),
Pointf (width-undersideoffset, height ));
Gpright. addline (pointf (width-undersideoffset, height ),
Pointf (width-undersideoffset,
(Height-(float) calculated_y )));
}/* Else
{
Gpright. addline (pointf (ABS (width-m_x-undersideoffset), height), pointf (width-undersideoffset, height ));
Gpright. addline (pointf (width-undersideoffset, height), pointf (width-undersideoffset, 0 ));
Calculated_x = height/TAN (radians );
Gpright. addline (pointf (width-undersideoffset, 0), pointf (ABS (width-(m_x-(float) calculated_x)-undersideoffset), 0 ));
}*/

Gpright. closefigure ();
Graphics UG (& pageundersideimage );
Ug. setclip (& gpright );
Ug. drawpath (& pendraw, & gpright );
Ug. drawimage (& l3image, 0, 0, width, height );
Ug. drawstring (context, 1024, & font, rectf3, & strfmt, & brush );

Matrix pathtranslationmatrix1;
Pathtranslationmatrix1.translate (leftframe + width * 2-m_x, topframe + height );

Pathtranslationmatrix1.rotate (float) (pageundersiderotationangle ));

Graphics. settransform (& pathtranslationmatrix1 );
Graphics. drawimage (& pageundersideimage,-int (m_x),-height, width, height );

 

PDC-> bitblt (0, 0, bkrect. Width (), bkrect. Height (), & dcmemory, 0, 0, srccopy );

Graphics. releasehdc (dcmemory. m_hdc );


}

Implement iBook-like paging through VC and GDI +