AS3_Val initializeBitmap( void* self, AS3_Val args )
{
Bitmap * bitmap;
int width, height;
LPBYTE data;
AS3_ArrayValue( args, "IntType, IntType, PtrType", &width, &height, &data );
bitmap = newBitmap( width, height, data );
return AS3_Ptr( bitmap );
}
// Creates a bitmap with transparent areas drawn in
// the given colour.
wxBitmap wxCreateMaskedBitmap(const wxBitmap& bitmap, wxColour& colour)
{
wxBitmap newBitmap(bitmap.GetWidth(),
bitmap.GetHeight(),
bitmap.GetDepth());
wxMemoryDC destDC;
wxMemoryDC srcDC;
srcDC.SelectObject(bitmap);
destDC.SelectObject(newBitmap);
wxBrush brush(colour, wxSOLID);
destDC.SetBackground(brush);
destDC.Clear();
destDC.Blit(0, 0, bitmap.GetWidth(), bitmap.GetHeight(),
&srcDC, 0, 0, wxCOPY, true);
return newBitmap;
}
void resizeWindow(Window* win, int width, int height) {
bitmap* new_context = newBitmap(width, height);
if (!new_context)
return;
int copy_w = width < win->w ? width : win->w;
int copy_h = height < win->h ? height : win->h;
win->w = width;
win->h = height;
int x, y;
for (y = 0; y < copy_h; y++)
for (x = 0; x < copy_w; x++)
new_context->data[y*new_context->width + x] = win->context->data[y*win->context->width + x];
freeBitmap(win->context);
win->context = new_context;
drawWindow(win, 0);
}
Window* newWindow(unsigned int width, unsigned int height, unsigned char flags, unsigned int pid) {
static int next_handle = 1;
Window *new_window, *temp_window;
unsigned int i, bufsz;
if (!(new_window = (Window*)malloc(sizeof(window)))) {
printf("Coudln't allocate a new window structure");
return 0;
}
new_window->active = 1;
new_window->pid = pid;
new_window->flags = flags;
new_window->x = 0;
new_window->y = 0;
new_window->w = width;
new_window->h = height;
new_window->title = (unsigned char*)0;
new_window->frame_needs_redraw = 1;
//Create a drawing context for the new window
if (!(new_window->context = newBitmap(new_window->w, new_window->h))) {
free((void*)new_window);
printf("Couldn't allocate bitmap area for new window");
return (window*)0;
}
bufsz = new_window->w * new_window->h;
//Clear new window to white
for (i = 0; i < bufsz; i++)
new_window->context->data[i] = RGB(255, 255, 255);
new_window->handle = next_handle++;
if (mouse_window)
List_pop(window_list, (void*)mouse_window);
//De-activate the old active window
if (temp_window = (window*)List_get_at(window_list, window_list->count - (mouse_window ? 2 : 1))) {
temp_window->active = 0;
}
if (!List_add(window_list, (void*)new_window)){
freeBitmap(new_window->context);
free((void*)new_window);
//re-activate the old active window
if (temp_window)
temp_window->active = 1;
return (window*)0;
}
//Give the new window its initial decoration
if (!(new_window->flags & WIN_UNDECORATED))
drawFrame(new_window);
drawWindow(new_window, 0);
//Update the titlebar on the old active window
if (temp_window)
drawTitlebar(temp_window, 1);
if (mouse_window) {
List_add(window_list, mouse_window);
drawWindow(mouse_window, 0);
}
return new_window;
}
int CWmfLoaderImpl::LoadImage(const wstring& wstrFilePath, bool* pbStop, bool bScale, int nWidth, int nHeight)
{
Gdiplus::Metafile metafile(wstrFilePath.c_str());
if (metafile.GetLastStatus() != Gdiplus::Ok)
{
return 4;
}
Gdiplus::MetafileHeader metafileheader;
metafile.GetMetafileHeader(&metafileheader);
m_nHeight = metafileheader.Height;
m_nWidth = metafileheader.Width;
if ( m_nWidth == 0 || m_nHeight == 0 )
{
return 4;
}
int nCurWidth = m_nWidth;
int nCurHeight = m_nHeight;
// 做缩放
if (bScale)// 计算缩放率
{
double dRatio = 0;
double nMaxLength = nWidth>nHeight?nWidth:nHeight;
double nMinLength = nWidth<nHeight?nWidth:nHeight;
double nImageMaxLength = m_nWidth>m_nHeight?m_nWidth:m_nHeight;
double nImageMinLength = m_nWidth<m_nHeight?m_nWidth:m_nHeight;
if (nMaxLength >= nImageMaxLength && nMinLength >= nImageMinLength) // 不缩放
{
}
else // 缩放
{
if (nMaxLength/nImageMaxLength > nMinLength/nImageMinLength)
{
dRatio = nMinLength/nImageMinLength;
}
else
{
dRatio = nMaxLength/nImageMaxLength;
}
nCurWidth = nCurWidth * dRatio;
nCurHeight = nCurHeight * dRatio;
}
}
m_hBitmap = XL_CreateBitmap(XLGRAPHIC_CT_ARGB32, nCurWidth, nCurHeight);
if (m_hBitmap == NULL)
{
return 4;
}
XLBitmapInfo newBitmapInfo;
XL_GetBitmapInfo(m_hBitmap, &newBitmapInfo);
Gdiplus::Bitmap newBitmap(newBitmapInfo.Width, newBitmapInfo.Height, newBitmapInfo.ScanLineLength, PixelFormat32bppARGB, XL_GetBitmapBuffer(m_hBitmap, 0, 0));
Gdiplus::Graphics graphics(&newBitmap);
Gdiplus::Rect rect(0, 0, nCurWidth, nCurHeight);
graphics.DrawImage(&metafile, rect);
if (m_hBitmap != NULL)
{
return 0;
}
return 4;
}