diff options
Diffstat (limited to 'ldmicro/componentimages.cpp')
| -rw-r--r-- | ldmicro/componentimages.cpp | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/ldmicro/componentimages.cpp b/ldmicro/componentimages.cpp new file mode 100644 index 0000000..2026c7f --- /dev/null +++ b/ldmicro/componentimages.cpp @@ -0,0 +1,253 @@ + +#include <windows.h> +#include <commctrl.h> +#include <stdio.h> +#include <stdlib.h> +#include <wincodec.h> + +#include "ldmicro.h" +#include "componentlist.h" +#include "components/componentimages.h" + +static int temp = 1; + +void InitializeComponentImage(int Component, HIMAGELIST *il) +{ + int i; + // char a[4]; + // MessageBox(ComponentList, (LPCTSTR)itoa(rgCompData[Component], a, 10), + // "Info", MB_OK | MB_ICONEXCLAMATION); + // test=LoadComponentImage(rgCompData[Component].Images[0]); + // if(test ==NULL){ + // MessageBox(ComponentList, "Could not load Bitmap!", + // "Error", MB_OK | MB_ICONEXCLAMATION); + // } + // HDC hdc=GetDC(AdvancedWorkspace); + // HdcMem = CreateCompatibleDC(hdc); + // HBITMAP bm = (HBITMAP)SelectObject(HdcMem, test); + // BitBlt(hdc, 10 * temp, 10 * temp, COMPONENT_WIDTH, + // COMPONENT_HEIGHT, HdcMem, 0, 0, SRCCOPY); + // temp++; + // DeleteDC(hdc); + // if(ComponentDiagrams == NULL){ + // InitializeImageList(); + // } + HBITMAP bm = LoadComponentImage(Component); + // HBITMAP mask = CreateBitmapMask(bm, CLR_NONE); + // HDC hdc = GetDC(AdvancedWorkspace); + ImageList_RemoveAll(*il); + i = ImageList_AddMasked(*il, bm, CLR_NONE); + if(bm==NULL) + { + MessageBox(NULL,"Could not add image", + "Info", MB_OK | MB_ICONEXCLAMATION); + } + /*char vx[4],vy[4]; + _itoa(10,vy,10); + _itoa(ImageStack[i].Image->Images,vx,10); + MessageBox(NULL, + (vx), (vy), MB_OK | MB_ICONWARNING);*/ + // _itoa(Component, a, 10); + // MessageBox(ComponentList,a, + // "Info", MB_OK | MB_ICONEXCLAMATION); + + // ImageList_Draw(ComponentDiagrams, i, hdc, 100*temp, 100*temp, ILD_TRANSPARENT); + // temp ++; + // DeleteDC(hdc); +} + +//----------------------------------------------------------------------------- +// Creates a stream object initialized with the data from an executable resource. +//----------------------------------------------------------------------------- + +IStream * CreateStreamOnResource(LPCTSTR lpName, LPCTSTR lpType) +{ + + // initialize return value + IStream * ipStream = NULL; + + // find the resource + HRSRC hrsrc = FindResource(NULL, lpName, lpType); + if (hrsrc == NULL) + { + return ipStream; + } + + // load the resource + DWORD dwResourceSize = SizeofResource(NULL, hrsrc); + HGLOBAL hglbImage = LoadResource(NULL, hrsrc); + if (hglbImage == NULL) + { + return ipStream; + } + + // lock the resource, getting a pointer to its data + LPVOID pvSourceResourceData = LockResource(hglbImage); + if (pvSourceResourceData == NULL) + { + return ipStream; + } + + // allocate memory to hold the resource data + HGLOBAL hgblResourceData = GlobalAlloc(GMEM_MOVEABLE, dwResourceSize); + if (hgblResourceData == NULL) + { + return ipStream; + } + + // get a pointer to the allocated memory + LPVOID pvResourceData = GlobalLock(hgblResourceData); + if (pvResourceData == NULL) + { + // couldn't create stream; free the memory + GlobalFree(hgblResourceData); + return ipStream; + } + + // copy the data from the resource to the new memory block + CopyMemory(pvResourceData, pvSourceResourceData, dwResourceSize); + GlobalUnlock(hgblResourceData); + + // create a stream on the HGLOBAL containing the data + if (SUCCEEDED(CreateStreamOnHGlobal(hgblResourceData, TRUE, &ipStream))) + { + return ipStream; + } + GlobalFree(hgblResourceData); + return ipStream; +} + +//----------------------------------------------------------------------------- +// Loads a PNG image from the specified stream +// (using Windows Imaging Component) +//----------------------------------------------------------------------------- +IWICBitmapSource * LoadBitmapFromStream(IStream * ipImageStream) +{ + // initialize return value + IWICBitmapSource * ipBitmap = NULL; + + // load WIC's PNG decoder + IWICBitmapDecoder * ipDecoder = NULL; + if(CoInitialize(NULL) == RPC_E_CHANGED_MODE) + { + MessageBox(ComponentList, "Could not Initialize COM Library!", + "Error", MB_OK | MB_ICONEXCLAMATION); + } + if (FAILED(CoCreateInstance(CLSID_WICPngDecoder, NULL, CLSCTX_INPROC_SERVER, + __uuidof(ipDecoder), reinterpret_cast<void**>(&ipDecoder)))) + { + MessageBox(ComponentList, "Could not Create Object!", + "Error", MB_OK | MB_ICONEXCLAMATION); + goto Return; + } + + // load the PNG + if (FAILED(ipDecoder->Initialize(ipImageStream, WICDecodeMetadataCacheOnLoad))) + goto ReleaseDecoder; + + // check for the presence of the first frame in the bitmap + UINT nFrameCount = 0; + if (FAILED(ipDecoder->GetFrameCount(&nFrameCount)) || nFrameCount != 1) + goto ReleaseDecoder; + + // load the first frame (i.e., the image) + IWICBitmapFrameDecode * ipFrame = NULL; + if (FAILED(ipDecoder->GetFrame(0, &ipFrame))) + goto ReleaseDecoder; + + // convert the image to 32bpp BGRA format with pre-multiplied alpha + // (it may not be stored in that format natively in the PNG resource, + // but we need this format to create the DIB to use on-screen) + WICConvertBitmapSource(GUID_WICPixelFormat32bppPBGRA, ipFrame, &ipBitmap); + ipFrame->Release(); + +ReleaseDecoder: + ipDecoder->Release(); + +Return: + return ipBitmap; + +} + +//----------------------------------------------------------------------------- +// Creates a 32-bit DIB from the specified WIC bitmap. +//----------------------------------------------------------------------------- + +HBITMAP CreateHBITMAP(IWICBitmapSource * ipBitmap) +{ + // initialize return value + HBITMAP hbmp = NULL; + + // get image attributes and check for valid image + UINT width = 0; + UINT height = 0; + if (FAILED(ipBitmap->GetSize(&width, &height)) || width == 0 || height == 0) + { + return hbmp; + } + + // prepare structure giving bitmap information + // (negative height indicates a top-down DIB) + BITMAPINFO bminfo; + ZeroMemory(&bminfo, sizeof(bminfo)); + bminfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER); + bminfo.bmiHeader.biWidth = width; + bminfo.bmiHeader.biHeight = -((LONG) height); + bminfo.bmiHeader.biPlanes = 1; + bminfo.bmiHeader.biBitCount = 32; + bminfo.bmiHeader.biCompression = BI_RGB; + + // create a DIB section that can hold the image + void * pvImageBits = NULL; + HDC hdcScreen = GetDC(NULL); + hbmp = CreateDIBSection(hdcScreen, &bminfo, DIB_RGB_COLORS, &pvImageBits, NULL, 0); + ReleaseDC(NULL, hdcScreen); + if (hbmp == NULL) + { + return hbmp; + } + + // extract the image into the HBITMAP + const UINT cbStride = width * 4; + const UINT cbImage = cbStride * height; + if (FAILED(ipBitmap->CopyPixels(NULL, cbStride, cbImage, static_cast<BYTE *>(pvImageBits)))) + { + // couldn't extract image; delete HBITMAP + DeleteObject(hbmp); + hbmp = NULL; + } + + return hbmp; +} + +//----------------------------------------------------------------------------- +// Loads the PNG containing the splash image into a HBITMAP. +//----------------------------------------------------------------------------- + +HBITMAP LoadComponentImage(int resource) +{ + HBITMAP hbmpSplash = NULL; + + // load the PNG image data into a stream + IStream * ipImageStream = CreateStreamOnResource( + MAKEINTRESOURCE(resource), _("PNG")); + if (ipImageStream == NULL) + { + return hbmpSplash; + } + + // load the bitmap with WIC + IWICBitmapSource * ipBitmap = LoadBitmapFromStream(ipImageStream); + if (ipBitmap == NULL) + { + ipImageStream->Release(); + return hbmpSplash; + } + + // create a HBITMAP containing the image + hbmpSplash = CreateHBITMAP(ipBitmap); + ipBitmap->Release(); + + ipImageStream->Release(); + return hbmpSplash; +}
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