diff options
Diffstat (limited to 'app/wlib/mswlib/backgnd.c')
| -rw-r--r-- | app/wlib/mswlib/backgnd.c | 369 |
1 files changed, 196 insertions, 173 deletions
diff --git a/app/wlib/mswlib/backgnd.c b/app/wlib/mswlib/backgnd.c index d35f19a..f10e0f0 100644 --- a/app/wlib/mswlib/backgnd.c +++ b/app/wlib/mswlib/backgnd.c @@ -17,7 +17,7 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software -* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <windows.h> @@ -29,192 +29,215 @@ static char *lastErrorMessage; /**< store last message from FreeImage */ #define ERRORPUNCTUATION " : " -/**
- * FreeImage error handler
- * \param fif Format / Plugin responsible for the error
- * \param message Error message
+/** + * FreeImage error handler + * \param fif Format / Plugin responsible for the error + * \param message Error message */ -static void
-HandleFreeImageError(FREE_IMAGE_FORMAT fif, const char *message)
-{
- unsigned totalLength = strlen(message) + 1;
-
- if (fif != FIF_UNKNOWN) {
- totalLength += strlen(FreeImage_GetFormatFromFIF(fif)) + strlen(ERRORPUNCTUATION);
- }
-
- lastErrorMessage = malloc(totalLength);
-
- if (fif != FIF_UNKNOWN) {
- sprintf(lastErrorMessage,
- "%s" ERRORPUNCTUATION "%s",
- FreeImage_GetFormatFromFIF(fif),
- message);
- } else {
- strcpy(lastErrorMessage, message);
- }
+static void +HandleFreeImageError( FREE_IMAGE_FORMAT fif, const char *message ) +{ + size_t totalLength = strlen( message ) + 1; + + if( fif != FIF_UNKNOWN ) { + totalLength += strlen( FreeImage_GetFormatFromFIF( fif ) ) + strlen( + ERRORPUNCTUATION ); + } + + lastErrorMessage = malloc( totalLength ); + + if( fif != FIF_UNKNOWN ) { + sprintf( lastErrorMessage, + "%s" ERRORPUNCTUATION "%s", + FreeImage_GetFormatFromFIF( fif ), + message ); + } else { + strcpy( lastErrorMessage, message ); + } } -/**
-* Load the background image
-* \param bd drawing context
-* \param path filename for image file, if NULL the existing background will be removed
-* \param error returned error message
-* \return -1 unsupported or invalid file, 0 success, 1 background removed
+/** +* Load the background image +* \param bd drawing context +* \param path filename for image file, if NULL the existing background will be removed +* \param error returned error message +* \return -1 unsupported or invalid file, 0 success, 1 background removed */ int -wDrawSetBackground(wDraw_p bd, char * path, char ** error) +wDrawSetBackground( wDraw_p bd, char * path, char ** error ) { - FREE_IMAGE_FORMAT fif = FIF_UNKNOWN; + FREE_IMAGE_FORMAT fif = FIF_UNKNOWN; + + FreeImage_SetOutputMessage( HandleFreeImageError ); - FreeImage_SetOutputMessage(HandleFreeImageError); -
- if (lastErrorMessage) {
- free(lastErrorMessage);
- lastErrorMessage = NULL;
+ if( lastErrorMessage ) { + free( lastErrorMessage ); + lastErrorMessage = NULL; } - if (path) { - // check the file signature and deduce its format - // (the second argument is currently not used by FreeImage) - fif = FreeImage_GetFileType(path, 0); - - if (fif == FIF_UNKNOWN) { - // no signature ? - // try to guess the file format from the file extension - fif = FreeImage_GetFIFFromFilename(path); - } - - // check that the plugin has reading capabilities ... - if ((fif != FIF_UNKNOWN) && FreeImage_FIFSupportsReading(fif)) { - // ok, let's load the file - bd->background = FreeImage_Load(fif, path, 0); - - // unless a bad file format, we are done ! - if (!bd->background) { - *error = lastErrorMessage; - return (-1); - } else { - return (0); - } - } else { - *error = strdup(_("Image file is invalid or cannot be read.")); - return (-1); - } - } else { - if (bd->background) { - FreeImage_Unload(bd->background); - bd->background = 0; - } - - return (1); - } + if( path ) { + // check the file signature and deduce its format + // (the second argument is currently not used by FreeImage) + fif = FreeImage_GetFileType( path, 0 ); + + if( fif == FIF_UNKNOWN ) { + // no signature ? + // try to guess the file format from the file extension + fif = FreeImage_GetFIFFromFilename( path ); + } + + // check that the plugin has reading capabilities ... + if( ( fif != FIF_UNKNOWN ) && FreeImage_FIFSupportsReading( fif ) ) { + // ok, let's load the file + bd->background = FreeImage_Load( fif, path, 0 ); + + // unless a bad file format, we are done ! + if( !bd->background ) { + *error = lastErrorMessage; + return ( -1 ); + } else { + return ( 0 ); + } + } else { + *error = _strdup( _( "Image file is invalid or cannot be read." ) ); + return ( -1 ); + } + } else { + if( bd->background ) { + FreeImage_Unload( bd->background ); + bd->background = 0; + } + + return ( 1 ); + } } +/** + * Use a loaded background in another context. + * + * \param from context with background + * \param to context to get a reference to the existing background + */ -/**
-* Draw background to screen. The background will be sized and rotated before being shown. The bitmap
-* is scaled so that the width is equal to size. The height is changed proportionally.
-*
-* \param bd drawing context
-* \param pos_x, pos_y bitmap position
-* \param size desired width after scaling
-* \param angle
-* \param screen visibility of bitmap in percent
+void +wDrawCloneBackground( wDraw_p from, wDraw_p to ) +{ + if( from->background ) { + to->background = from->background; + } else { + to->background = NULL; + } +} + +/** +* Draw background to screen. The background will be sized and rotated before being shown. The bitmap +* is scaled so that the width is equal to size. The height is changed proportionally. +* +* \param bd drawing context +* \param pos_x, pos_y bitmap position +* \param size desired width after scaling +* \param angle +* \param screen visibility of bitmap in percent */ void -wDrawShowBackground(wDraw_p bd, wPos_t pos_x, wPos_t pos_y, wPos_t size, - wAngle_t angle, int screen) +wDrawShowBackground( wDraw_p bd, wWinPix_t pos_x, wWinPix_t pos_y, + wWinPix_t size, + wAngle_t angle, int screen ) { - if (bd->background) { - double scale; - FIBITMAP *tmp; - FIBITMAP *rotated; - - if (size == 0) { - scale = 1.0; - } else { - scale = (double)size / FreeImage_GetWidth(bd->background); - } - - tmp = FreeImage_RescaleRect(bd->background, - (int)((double)FreeImage_GetWidth(bd->background) * scale), - (int)((double)FreeImage_GetHeight(bd->background) * scale), - 0, - 0, - FreeImage_GetWidth(bd->background), - FreeImage_GetHeight(bd->background), - FILTER_BILINEAR, - 0); - FreeImage_AdjustColors(tmp, screen, -screen, 1.0, FALSE); - FREE_IMAGE_TYPE image_type = FreeImage_GetImageType(tmp); - - switch (image_type) { - case FIT_BITMAP: - switch (FreeImage_GetBPP(tmp)) { - case 8: { - BYTE color = 255; - rotated = FreeImage_Rotate(tmp, angle, &color); - } - break; - - case 24: // we could also use 'RGBTRIPLE color' here - case 32: { - RGBQUAD color = { 255, 255, 255, 0 }; - // for 24-bit images, the first 3 bytes will be read - // for 32-bit images, the first 4 bytes will be read - rotated = FreeImage_Rotate(tmp, angle, &color); - } - break; - } - - break; - - case FIT_UINT16: { - WORD color = 255; - rotated = FreeImage_Rotate(tmp, angle, &color); - } - break; - - case FIT_RGB16: // we could also use 'FIRGB16 color' here - case FIT_RGBA16: { - FIRGBA16 color = { 255, 255, 255, 0 }; - // for RGB16 images, the first 3 WORD will be read - // for RGBA16 images, the first 4 WORD will be read - rotated = FreeImage_Rotate(tmp, angle, &color); - } - break; - - case FIT_FLOAT: { - float color = 1.0F; - rotated = FreeImage_Rotate(tmp, angle, &color); - } - break; - - case FIT_RGBF: // we could also use 'FIRGBF color' here - case FIT_RGBAF: { - FIRGBAF color = { 1, 1, 1, 0 }; - // for RGBF images, the first 3 float will be read - // for RGBAF images, the first 4 float will be read - rotated = FreeImage_Rotate(tmp, angle, &color); - } - break; - } - - SetDIBitsToDevice(bd->hDc, - pos_x, - bd->h - pos_y - FreeImage_GetHeight(rotated), - FreeImage_GetWidth(rotated), - FreeImage_GetHeight(rotated), - 0, 0, - 0, - FreeImage_GetHeight(rotated), - FreeImage_GetBits(rotated), - FreeImage_GetInfo(rotated), - DIB_RGB_COLORS); - FreeImage_Unload(tmp); - FreeImage_Unload(rotated); - } -}
\ No newline at end of file + if( bd->background ) { + double scale; + FIBITMAP *tmp; + FIBITMAP *rotated; + + if( size == 0 ) { + scale = 1.0; + } else { + scale = ( double )size / FreeImage_GetWidth( bd->background ); + } + + tmp = FreeImage_RescaleRect( bd->background, + ( int )( ( double )FreeImage_GetWidth( bd->background ) * scale ), + ( int )( ( double )FreeImage_GetHeight( bd->background ) * scale ), + 0, + 0, + FreeImage_GetWidth( bd->background ), + FreeImage_GetHeight( bd->background ), + FILTER_BILINEAR, + 0 ); + + if( tmp == NULL ) { + return; + } + + FreeImage_AdjustColors( tmp, screen, -screen, 1.0, FALSE ); + FREE_IMAGE_TYPE image_type = FreeImage_GetImageType( tmp ); + + switch( image_type ) { + case FIT_BITMAP: + switch( FreeImage_GetBPP( tmp ) ) { + case 8: { + BYTE color = 255; + rotated = FreeImage_Rotate( tmp, angle, &color ); + } + break; + + case 24: // we could also use 'RGBTRIPLE color' here + case 32: { + RGBQUAD color = { 255, 255, 255, 0 }; + // for 24-bit images, the first 3 bytes will be read + // for 32-bit images, the first 4 bytes will be read + rotated = FreeImage_Rotate( tmp, angle, &color ); + } + break; + } + + break; + + case FIT_UINT16: { + WORD color = 255; + rotated = FreeImage_Rotate( tmp, angle, &color ); + } + break; + + case FIT_RGB16: // we could also use 'FIRGB16 color' here + case FIT_RGBA16: { + FIRGBA16 color = { 255, 255, 255, 0 }; + // for RGB16 images, the first 3 WORD will be read + // for RGBA16 images, the first 4 WORD will be read + rotated = FreeImage_Rotate( tmp, angle, &color ); + } + break; + + case FIT_FLOAT: { + float color = 1.0F; + rotated = FreeImage_Rotate( tmp, angle, &color ); + } + break; + + case FIT_RGBF: // we could also use 'FIRGBF color' here + case FIT_RGBAF: { + FIRGBAF color = { 1, 1, 1, 0 }; + // for RGBF images, the first 3 float will be read + // for RGBAF images, the first 4 float will be read + rotated = FreeImage_Rotate( tmp, angle, &color ); + } + break; + } + + SetDIBitsToDevice( bd->hDc, + pos_x, + bd->h - pos_y - FreeImage_GetHeight( rotated ), + FreeImage_GetWidth( rotated ), + FreeImage_GetHeight( rotated ), + 0, 0, + 0, + FreeImage_GetHeight( rotated ), + FreeImage_GetBits( rotated ), + FreeImage_GetInfo( rotated ), + DIB_RGB_COLORS ); + FreeImage_Unload( tmp ); + FreeImage_Unload( rotated ); + } +} |