void Label::DrawImage(HDC hDC, int x, int y)
{
int w = 0;
int h = 0;
// Get the image's size
GetLSBitmapSize(mImage, &w, &h);
HDC imageDC = CreateCompatibleDC(hDC);
HBITMAP oldImageBitmap = SelectBitmap(imageDC, mImage);
// Draw the image transparently
TransparentBltLS(hDC, x, y, w, h, imageDC, 0, 0, RGB(255, 0, 255));
SelectBitmap(imageDC, oldImageBitmap);
DeleteDC(imageDC);
}
void Label::Paint(HDC hDC)
{
// Figure out how much space we have to work with
int x = mPaddingLeft;
int y = mPaddingTop;
int w = mWidth - mPaddingLeft - mPaddingRight;
int h = mHeight - mPaddingTop - mPaddingBottom;
// Compute the size of the image
int wImage = 0;
int hImage = 0;
if (mImage)
{
GetLSBitmapSize(mImage, &wImage, &hImage);
}
// Compute the amount of space between the image and the text
int wGap = 0;
int hGap = 0;
if (mImage && StrLen(mText) > 0)
{
wGap = mImageTextGap;
hGap = mImageTextGap;
}
// Compute the size of the text
int wText = 0;
int hText = 0;
if (StrLen(mText) > 0)
{
GetTextExtent(hDC, &wText, &hText);
}
// Compute the size of the content area (image and text)
int wContent = 0;
int hContent = 0;
if (mImagePosition == IMAGE_POSITION_LEFT || mImagePosition == IMAGE_POSITION_RIGHT)
{
wContent = wImage + wGap + wText;
hContent = max(hImage, hText);
}
else
{
wContent = max(wImage, wText);
hContent = hImage + hGap + hText;
}
// Align the content area horizontally
int xContent = 0;
switch (mAlign)
{
case ALIGN_LEFT:
xContent = x;
break;
case ALIGN_CENTER:
xContent = x + (w - wContent) / 2;
break;
case ALIGN_RIGHT:
xContent = x + (w - wContent);
break;
}
// Align the content area vertically
int yContent = 0;
switch (mVerticalAlign)
{
case VERTICAL_ALIGN_TOP:
yContent = y;
break;
case VERTICAL_ALIGN_CENTER:
yContent = y + (h - hContent) / 2;
break;
case VERTICAL_ALIGN_BOTTOM:
yContent = y + (h - hContent);
break;
}
// Place the image and the text
int xImage = 0;
int yImage = 0;
int xText = 0;
int yText = 0;
switch (mImagePosition)
{
case IMAGE_POSITION_LEFT:
xImage = xContent;
yImage = yContent + (hContent - hImage) / 2;
xText = xContent + wImage + wGap;
yText = yContent + (hContent - hText) / 2;
break;
case IMAGE_POSITION_TOP:
xImage = xContent + (wContent - wImage) / 2;
yImage = yContent;
xText = xContent + (wContent - wText) / 2;
yText = yContent + hImage + hGap;
break;
case IMAGE_POSITION_RIGHT:
xImage = xContent + wText + wGap;
yImage = yContent + (hContent - hImage) / 2;
xText = xContent;
yText = yContent + (hContent - hText) / 2;
break;
case IMAGE_POSITION_BOTTOM:
xImage = xContent + (wContent - wImage) / 2;
yImage = yContent + hText + hGap;
xText = xContent + (wContent - wText) / 2;
yText = yContent;
break;
}
// Paint the background
DrawBackground(hDC);
// Clip the content area
IntersectClipRect(hDC, x, y, x + w, y + h);
// Paint the image
if (mImage)
{
DrawImage(hDC, xImage, yImage);
}
// Paint the text
if (StrLen(mText) > 0)
{
DrawText(hDC, xText, yText);
}
}
void Label::DrawBackground(HDC hDC)
{
if (mBackgroundImage)
{
int w = 0;
int h = 0;
// Fill background with an image
HDC backgroundDC = CreateCompatibleDC(hDC);
HBITMAP oldBackgroundBitmap = SelectBitmap(backgroundDC, mBackgroundImage);
GetLSBitmapSize(mBackgroundImage, &w, &h);
ScaleEdgeBlt(hDC,
0, 0,
mWidth, mHeight,
backgroundDC,
0, 0,
w, h,
mBackgroundImageBorderLeft, mBackgroundImageBorderTop,
mBackgroundImageBorderRight, mBackgroundImageBorderBottom,
mBackgroundImageTile,
SRCCOPY);
SelectBitmap(backgroundDC, oldBackgroundBitmap);
DeleteDC(backgroundDC);
}
else
{
// Fill background with color
HBRUSH brush = CreateSolidBrush(mBackgroundColor);
HBRUSH oldBrush = SelectBrush(hDC, brush);
PatBlt(hDC, 0, 0, mWidth, mHeight, PATCOPY);
SelectBrush(hDC, oldBrush);
DeleteBrush(brush);
// Draw top border
if (mBorderTop > 0)
{
HPEN pen = CreatePen(PS_SOLID, mBorderTop * 2, mBorderColorTop);
HPEN oldPen = SelectPen(hDC, pen);
MoveToEx(hDC, 0, 0, NULL);
LineTo(hDC, mWidth, 0);
SelectPen(hDC, oldPen);
DeletePen(pen);
}
// Draw right border
if (mBorderRight > 0)
{
HPEN pen = CreatePen(PS_SOLID, mBorderRight * 2, mBorderColorRight);
HPEN oldPen = SelectPen(hDC, pen);
MoveToEx(hDC, mWidth, 0, NULL);
LineTo(hDC, mWidth, mHeight);
SelectPen(hDC, oldPen);
DeletePen(pen);
}
// Draw bottom border
if (mBorderBottom > 0)
{
HPEN pen = CreatePen(PS_SOLID, mBorderBottom * 2, mBorderColorBottom);
HPEN oldPen = SelectPen(hDC, pen);
MoveToEx(hDC, mWidth, mHeight, NULL);
LineTo(hDC, 0, mHeight);
SelectPen(hDC, oldPen);
DeletePen(pen);
}
// Draw left border
if (mBorderLeft > 0)
{
HPEN pen = CreatePen(PS_SOLID, mBorderLeft * 2, mBorderColorLeft);
HPEN oldPen = SelectPen(hDC, pen);
MoveToEx(hDC, 0, mHeight, NULL);
LineTo(hDC, 0, 0);
SelectPen(hDC, oldPen);
DeletePen(pen);
}
}
}
//
// HBITMAP LoadLSImage(LPCSTR pszImage, LPCSTR pszFile)
//
// Takes strings of the form:
// File.bmp
// .extract
// .extract=file.exe[,3]
HBITMAP LoadLSImage(LPCSTR pszImage, LPCSTR pszFile)
{
HBITMAP hbmReturn = NULL;
if (pszImage != NULL)
{
if (_stricmp(pszImage, ".none") != 0)
{
char szImage[MAX_PATH];
StringCchCopy(szImage, MAX_PATH, pszImage);
// Bitmap merging by Thedd
// Thedd - pic1.bmp|pic2.bmp merges the images. Works recursively,
// so pic1.bmp|.extract=whatever.dll,3|pic2.bmp also works etc...
// bitmap merging by grd
LPSTR pszSecondImage = strchr(szImage, '|');
if (pszSecondImage)
{
HDC hdcFirst, hdcSecond, hdcResult;
HBITMAP hbmFirst, hbmFirstOld;
HBITMAP hbmSecond, hbmSecondOld;
HBITMAP hbmResult, hbmResultOld;
HBRUSH hbrTransparent;
RECT rc;
int wdtFirst, hgtFirst;
int wdtSecond, hgtSecond;
int wdtResult, hgtResult;
// get the position after the [|] character
*pszSecondImage = '\0';
++pszSecondImage;
// load the two bitmaps
hbmFirst = LoadLSImage(szImage, pszFile);
hbmSecond = LoadLSImage(pszSecondImage, pszFile);
// if the second one is NULL, then there's no merging to do and
if (hbmSecond != NULL)
{
// create mem dcs for the bitmaps
hdcFirst = CreateCompatibleDC(NULL);
hdcSecond = CreateCompatibleDC(NULL);
// select the bitmaps
hbmFirstOld = (HBITMAP)SelectObject(hdcFirst, hbmFirst);
hbmSecondOld = (HBITMAP)SelectObject(hdcSecond, hbmSecond);
// get the bitmap sizes..
GetLSBitmapSize(hbmFirst, &wdtFirst, &hgtFirst);
GetLSBitmapSize(hbmSecond, &wdtSecond, &hgtSecond);
// in earlier version of bitmap merge, those were painted on
// to each other now let's paint both images to a new one
// and we support different sized images!! therefore:
wdtResult = std::max(wdtFirst, wdtSecond);
hgtResult = std::max(hgtFirst, hgtSecond);
// create another dc, compatible with second dc
hdcResult = CreateCompatibleDC(hdcSecond);
// create a new bitmap for the new dc and select it
hbmResult = CreateCompatibleBitmap(hdcSecond,
wdtResult, hgtResult);
hbmResultOld = (HBITMAP)SelectObject(hdcResult, hbmResult);
rc.top = 0;
rc.left = 0;
rc.right = wdtResult;
rc.bottom = hgtResult;
// paint the background in transparent color...
hbrTransparent = CreateSolidBrush(RGB(255, 0, 255));
FillRect(hdcResult, &rc, hbrTransparent);
DeleteObject(hbrTransparent);
// first "standard blit" the second image into the new one:
BitBlt(hdcResult, (wdtResult - wdtSecond) / 2,
(hgtResult - hgtSecond) / 2, wdtSecond, hgtSecond,
hdcSecond, 0, 0, SRCCOPY);
// Secondly "tranparent blit" the first image over the
// second one Since TransparentBltLS double buffers the
// painting to reduce flicker and we are using only memory
// DC's in this function, we will just call
// TransparentBltLSWorker and shave off a few BitBlt calls
TransparentBltLSWorker(hdcResult, wdtFirst, hgtFirst,
hdcFirst, 0, 0, RGB(255, 0, 255));
// deselect the bitmap from the dc and delete the dc to get
// the image
SelectObject(hdcResult, hbmResultOld);
DeleteDC(hdcResult);
// delete all used objects
SelectObject(hdcFirst, hbmFirstOld);
DeleteObject(hbmFirst);
DeleteDC(hdcFirst);
SelectObject(hdcSecond, hbmSecondOld);
DeleteObject(hbmSecond);
DeleteDC(hdcSecond);
hbmReturn = hbmResult;
}
else
{
hbmReturn = hbmFirst;
}
}
else
{
if (!_strnicmp(szImage, ".extract", 8 /*strlen(".extract")*/))
{
HICON hIcon = NULL;
hIcon = LoadLSIcon(szImage, pszFile);
if (hIcon)
{
hbmReturn = BitmapFromIcon(hIcon);
DestroyIcon(hIcon);
}
}
else
{
// Append the image name to the LiteStep image path and
// attempt to load the image.
char szExpandedImage[MAX_PATH];
VarExpansionEx(szExpandedImage, szImage, MAX_PATH);
LSGetImagePath(szImage, MAX_PATH);
PathAppend(szImage, szExpandedImage);
if (PathMatchSpec(szImage, "*.png"))
{
hbmReturn = LoadFromPNG(szImage);
}
else
{
hbmReturn = (HBITMAP)LoadImage(
NULL, szImage, IMAGE_BITMAP, 0, 0,
LR_DEFAULTCOLOR | LR_LOADFROMFILE);
}
// If that fails, treat the image as a fully qualified path
// and try loading it
if (hbmReturn == NULL)
{
if (PathMatchSpec(szExpandedImage, "*.png"))
{
hbmReturn = LoadFromPNG(szExpandedImage);
}
else
{
hbmReturn = (HBITMAP)LoadImage(
NULL, szExpandedImage, IMAGE_BITMAP, 0, 0,
LR_DEFAULTCOLOR | LR_LOADFROMFILE);
}
}
}
}
}
}
return hbmReturn;
}