diff options
Diffstat (limited to 'generic/ttk/ttkImage.c')
| -rw-r--r-- | generic/ttk/ttkImage.c | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/generic/ttk/ttkImage.c b/generic/ttk/ttkImage.c index a5a3a52..e403e2d 100644 --- a/generic/ttk/ttkImage.c +++ b/generic/ttk/ttkImage.c @@ -25,6 +25,8 @@ struct TtkImageSpec { int mapCount; /* #state-specific overrides */ Ttk_StateSpec *states; /* array[mapCount] of states ... */ Tk_Image *images; /* ... per-state images to use */ + Tk_ImageChangedProc *imageChanged; + ClientData imageChangedClientData; }; /* NullImageChanged -- @@ -34,15 +36,41 @@ static void NullImageChanged(ClientData clientData, int x, int y, int width, int height, int imageWidth, int imageHeight) { /* No-op */ } +/* ImageSpecImageChanged -- + * Image changes should trigger a repaint. + */ +static void ImageSpecImageChanged(ClientData clientData, + int x, int y, int width, int height, int imageWidth, int imageHeight) +{ + Ttk_ImageSpec *imageSpec = (Ttk_ImageSpec *)clientData; + if (imageSpec->imageChanged != NULL) { + imageSpec->imageChanged(imageSpec->imageChangedClientData, + x, y, width, height, + imageWidth, imageHeight); + } +} + /* TtkGetImageSpec -- * Constructs a Ttk_ImageSpec * from a Tcl_Obj *. * Result must be released using TtkFreeImageSpec. * - * TODO: Need a variant of this that takes a user-specified ImageChanged proc */ Ttk_ImageSpec * TtkGetImageSpec(Tcl_Interp *interp, Tk_Window tkwin, Tcl_Obj *objPtr) { + return TtkGetImageSpecEx(interp, tkwin, objPtr, NULL, NULL); +} + +/* TtkGetImageSpecEx -- + * Constructs a Ttk_ImageSpec * from a Tcl_Obj *. + * Result must be released using TtkFreeImageSpec. + * imageChangedProc will be called when not NULL when + * the image changes to allow widgets to repaint. + */ +Ttk_ImageSpec * +TtkGetImageSpecEx(Tcl_Interp *interp, Tk_Window tkwin, Tcl_Obj *objPtr, + Tk_ImageChangedProc *imageChangedProc, ClientData imageChangedClientData) +{ Ttk_ImageSpec *imageSpec = 0; int i = 0, n = 0, objc; Tcl_Obj **objv; @@ -52,6 +80,8 @@ TtkGetImageSpec(Tcl_Interp *interp, Tk_Window tkwin, Tcl_Obj *objPtr) imageSpec->mapCount = 0; imageSpec->states = 0; imageSpec->images = 0; + imageSpec->imageChanged = imageChangedProc; + imageSpec->imageChangedClientData = imageChangedClientData; if (Tcl_ListObjGetElements(interp, objPtr, &objc, &objv) != TCL_OK) { goto error; @@ -74,7 +104,7 @@ TtkGetImageSpec(Tcl_Interp *interp, Tk_Window tkwin, Tcl_Obj *objPtr) /* Get base image: */ imageSpec->baseImage = Tk_GetImage( - interp, tkwin, Tcl_GetString(objv[0]), NullImageChanged, NULL); + interp, tkwin, Tcl_GetString(objv[0]), ImageSpecImageChanged, imageSpec); if (!imageSpec->baseImage) { goto error; } |