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-rw-r--r--app/wlib/mswlib/backgnd.c367
1 files changed, 195 insertions, 172 deletions
diff --git a/app/wlib/mswlib/backgnd.c b/app/wlib/mswlib/backgnd.c
index d35f19a..9599beb 100644
--- a/app/wlib/mswlib/backgnd.c
+++ b/app/wlib/mswlib/backgnd.c
@@ -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 );
+ }
+}
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