diff options
Diffstat (limited to 'tk8.6/generic/ttk/ttkImage.c')
| -rw-r--r-- | tk8.6/generic/ttk/ttkImage.c | 452 |
1 files changed, 0 insertions, 452 deletions
diff --git a/tk8.6/generic/ttk/ttkImage.c b/tk8.6/generic/ttk/ttkImage.c deleted file mode 100644 index e403e2d..0000000 --- a/tk8.6/generic/ttk/ttkImage.c +++ /dev/null @@ -1,452 +0,0 @@ -/* - * Image specifications and image element factory. - * - * Copyright (C) 2004 Pat Thoyts <patthoyts@users.sf.net> - * Copyright (C) 2004 Joe English - * - * An imageSpec is a multi-element list; the first element - * is the name of the default image to use, the remainder of the - * list is a sequence of statespec/imagename options as per - * [style map]. - */ - -#include <string.h> -#include <tk.h> -#include "ttkTheme.h" - -#define MIN(a,b) ((a) < (b) ? (a) : (b)) - -/*------------------------------------------------------------------------ - * +++ ImageSpec management. - */ - -struct TtkImageSpec { - Tk_Image baseImage; /* Base image to use */ - 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 -- - * Do-nothing Tk_ImageChangedProc. - */ -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. - * - */ -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; - - imageSpec = ckalloc(sizeof(*imageSpec)); - imageSpec->baseImage = 0; - 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; - } - - if ((objc % 2) != 1) { - if (interp) { - Tcl_SetObjResult(interp, Tcl_NewStringObj( - "image specification must contain an odd number of elements", - -1)); - Tcl_SetErrorCode(interp, "TTK", "IMAGE", "SPEC", NULL); - } - goto error; - } - - n = (objc - 1) / 2; - imageSpec->states = ckalloc(n * sizeof(Ttk_StateSpec)); - imageSpec->images = ckalloc(n * sizeof(Tk_Image *)); - - /* Get base image: - */ - imageSpec->baseImage = Tk_GetImage( - interp, tkwin, Tcl_GetString(objv[0]), ImageSpecImageChanged, imageSpec); - if (!imageSpec->baseImage) { - goto error; - } - - /* Extract state and image specifications: - */ - for (i = 0; i < n; ++i) { - Tcl_Obj *stateSpec = objv[2*i + 1]; - const char *imageName = Tcl_GetString(objv[2*i + 2]); - Ttk_StateSpec state; - - if (Ttk_GetStateSpecFromObj(interp, stateSpec, &state) != TCL_OK) { - goto error; - } - imageSpec->states[i] = state; - - imageSpec->images[i] = Tk_GetImage( - interp, tkwin, imageName, NullImageChanged, NULL); - if (imageSpec->images[i] == NULL) { - goto error; - } - imageSpec->mapCount = i+1; - } - - return imageSpec; - -error: - TtkFreeImageSpec(imageSpec); - return NULL; -} - -/* TtkFreeImageSpec -- - * Dispose of an image specification. - */ -void TtkFreeImageSpec(Ttk_ImageSpec *imageSpec) -{ - int i; - - for (i=0; i < imageSpec->mapCount; ++i) { - Tk_FreeImage(imageSpec->images[i]); - } - - if (imageSpec->baseImage) { Tk_FreeImage(imageSpec->baseImage); } - if (imageSpec->states) { ckfree(imageSpec->states); } - if (imageSpec->images) { ckfree(imageSpec->images); } - - ckfree(imageSpec); -} - -/* TtkSelectImage -- - * Return a state-specific image from an ImageSpec - */ -Tk_Image TtkSelectImage(Ttk_ImageSpec *imageSpec, Ttk_State state) -{ - int i; - for (i = 0; i < imageSpec->mapCount; ++i) { - if (Ttk_StateMatches(state, imageSpec->states+i)) { - return imageSpec->images[i]; - } - } - return imageSpec->baseImage; -} - -/*------------------------------------------------------------------------ - * +++ Drawing utilities. - */ - -/* LPadding, CPadding, RPadding -- - * Split a box+padding pair into left, center, and right boxes. - */ -static Ttk_Box LPadding(Ttk_Box b, Ttk_Padding p) - { return Ttk_MakeBox(b.x, b.y, p.left, b.height); } - -static Ttk_Box CPadding(Ttk_Box b, Ttk_Padding p) - { return Ttk_MakeBox(b.x+p.left, b.y, b.width-p.left-p.right, b.height); } - -static Ttk_Box RPadding(Ttk_Box b, Ttk_Padding p) - { return Ttk_MakeBox(b.x+b.width-p.right, b.y, p.right, b.height); } - -/* TPadding, MPadding, BPadding -- - * Split a box+padding pair into top, middle, and bottom parts. - */ -static Ttk_Box TPadding(Ttk_Box b, Ttk_Padding p) - { return Ttk_MakeBox(b.x, b.y, b.width, p.top); } - -static Ttk_Box MPadding(Ttk_Box b, Ttk_Padding p) - { return Ttk_MakeBox(b.x, b.y+p.top, b.width, b.height-p.top-p.bottom); } - -static Ttk_Box BPadding(Ttk_Box b, Ttk_Padding p) - { return Ttk_MakeBox(b.x, b.y+b.height-p.bottom, b.width, p.bottom); } - -/* Ttk_Fill -- - * Fill the destination area of the drawable by replicating - * the source area of the image. - */ -static void Ttk_Fill( - Tk_Window tkwin, Drawable d, Tk_Image image, Ttk_Box src, Ttk_Box dst) -{ - int dr = dst.x + dst.width; - int db = dst.y + dst.height; - int x,y; - - if (!(src.width && src.height && dst.width && dst.height)) - return; - - for (x = dst.x; x < dr; x += src.width) { - int cw = MIN(src.width, dr - x); - for (y = dst.y; y <= db; y += src.height) { - int ch = MIN(src.height, db - y); - Tk_RedrawImage(image, src.x, src.y, cw, ch, d, x, y); - } - } -} - -/* Ttk_Stripe -- - * Fill a horizontal stripe of the destination drawable. - */ -static void Ttk_Stripe( - Tk_Window tkwin, Drawable d, Tk_Image image, - Ttk_Box src, Ttk_Box dst, Ttk_Padding p) -{ - Ttk_Fill(tkwin, d, image, LPadding(src,p), LPadding(dst,p)); - Ttk_Fill(tkwin, d, image, CPadding(src,p), CPadding(dst,p)); - Ttk_Fill(tkwin, d, image, RPadding(src,p), RPadding(dst,p)); -} - -/* Ttk_Tile -- - * Fill successive horizontal stripes of the destination drawable. - */ -static void Ttk_Tile( - Tk_Window tkwin, Drawable d, Tk_Image image, - Ttk_Box src, Ttk_Box dst, Ttk_Padding p) -{ - Ttk_Stripe(tkwin, d, image, TPadding(src,p), TPadding(dst,p), p); - Ttk_Stripe(tkwin, d, image, MPadding(src,p), MPadding(dst,p), p); - Ttk_Stripe(tkwin, d, image, BPadding(src,p), BPadding(dst,p), p); -} - -/*------------------------------------------------------------------------ - * +++ Image element definition. - */ - -typedef struct { /* ClientData for image elements */ - Ttk_ImageSpec *imageSpec; /* Image(s) to use */ - int minWidth; /* Minimum width; overrides image width */ - int minHeight; /* Minimum width; overrides image width */ - Ttk_Sticky sticky; /* -stickiness specification */ - Ttk_Padding border; /* Fixed border region */ - Ttk_Padding padding; /* Internal padding */ - -#if TILE_07_COMPAT - Ttk_ResourceCache cache; /* Resource cache for images */ - Ttk_StateMap imageMap; /* State-based lookup table for images */ -#endif -} ImageData; - -static void FreeImageData(void *clientData) -{ - ImageData *imageData = clientData; - if (imageData->imageSpec) { TtkFreeImageSpec(imageData->imageSpec); } -#if TILE_07_COMPAT - if (imageData->imageMap) { Tcl_DecrRefCount(imageData->imageMap); } -#endif - ckfree(clientData); -} - -static void ImageElementSize( - void *clientData, void *elementRecord, Tk_Window tkwin, - int *widthPtr, int *heightPtr, Ttk_Padding *paddingPtr) -{ - ImageData *imageData = clientData; - Tk_Image image = imageData->imageSpec->baseImage; - - if (image) { - Tk_SizeOfImage(image, widthPtr, heightPtr); - } - if (imageData->minWidth >= 0) { - *widthPtr = imageData->minWidth; - } - if (imageData->minHeight >= 0) { - *heightPtr = imageData->minHeight; - } - - *paddingPtr = imageData->padding; -} - -static void ImageElementDraw( - void *clientData, void *elementRecord, Tk_Window tkwin, - Drawable d, Ttk_Box b, unsigned int state) -{ - ImageData *imageData = clientData; - Tk_Image image = 0; - int imgWidth, imgHeight; - Ttk_Box src, dst; - -#if TILE_07_COMPAT - if (imageData->imageMap) { - Tcl_Obj *imageObj = Ttk_StateMapLookup(NULL,imageData->imageMap,state); - if (imageObj) { - image = Ttk_UseImage(imageData->cache, tkwin, imageObj); - } - } - if (!image) { - image = TtkSelectImage(imageData->imageSpec, state); - } -#else - image = TtkSelectImage(imageData->imageSpec, state); -#endif - - if (!image) { - return; - } - - Tk_SizeOfImage(image, &imgWidth, &imgHeight); - src = Ttk_MakeBox(0, 0, imgWidth, imgHeight); - dst = Ttk_StickBox(b, imgWidth, imgHeight, imageData->sticky); - - Ttk_Tile(tkwin, d, image, src, dst, imageData->border); -} - -static Ttk_ElementSpec ImageElementSpec = -{ - TK_STYLE_VERSION_2, - sizeof(NullElement), - TtkNullElementOptions, - ImageElementSize, - ImageElementDraw -}; - -/*------------------------------------------------------------------------ - * +++ Image element factory. - */ -static int -Ttk_CreateImageElement( - Tcl_Interp *interp, - void *clientData, - Ttk_Theme theme, - const char *elementName, - int objc, Tcl_Obj *const objv[]) -{ - static const char *optionStrings[] = - { "-border","-height","-padding","-sticky","-width",NULL }; - enum { O_BORDER, O_HEIGHT, O_PADDING, O_STICKY, O_WIDTH }; - - Ttk_ImageSpec *imageSpec = 0; - ImageData *imageData = 0; - int padding_specified = 0; - int i; - - if (objc <= 0) { - Tcl_SetObjResult(interp, Tcl_NewStringObj( - "Must supply a base image", -1)); - Tcl_SetErrorCode(interp, "TTK", "IMAGE", "BASE", NULL); - return TCL_ERROR; - } - - imageSpec = TtkGetImageSpec(interp, Tk_MainWindow(interp), objv[0]); - if (!imageSpec) { - return TCL_ERROR; - } - - imageData = ckalloc(sizeof(*imageData)); - imageData->imageSpec = imageSpec; - imageData->minWidth = imageData->minHeight = -1; - imageData->sticky = TTK_FILL_BOTH; - imageData->border = imageData->padding = Ttk_UniformPadding(0); -#if TILE_07_COMPAT - imageData->cache = Ttk_GetResourceCache(interp); - imageData->imageMap = 0; -#endif - - for (i = 1; i < objc; i += 2) { - int option; - - if (i == objc - 1) { - Tcl_SetObjResult(interp, Tcl_ObjPrintf( - "Value for %s missing", Tcl_GetString(objv[i]))); - Tcl_SetErrorCode(interp, "TTK", "IMAGE", "VALUE", NULL); - goto error; - } - -#if TILE_07_COMPAT - if (!strcmp("-map", Tcl_GetString(objv[i]))) { - imageData->imageMap = objv[i+1]; - Tcl_IncrRefCount(imageData->imageMap); - continue; - } -#endif - - if (Tcl_GetIndexFromObjStruct(interp, objv[i], optionStrings, - sizeof(char *), "option", 0, &option) != TCL_OK) { - goto error; - } - - switch (option) { - case O_BORDER: - if (Ttk_GetBorderFromObj(interp, objv[i+1], &imageData->border) - != TCL_OK) { - goto error; - } - if (!padding_specified) { - imageData->padding = imageData->border; - } - break; - case O_PADDING: - if (Ttk_GetBorderFromObj(interp, objv[i+1], &imageData->padding) - != TCL_OK) { goto error; } - padding_specified = 1; - break; - case O_WIDTH: - if (Tcl_GetIntFromObj(interp, objv[i+1], &imageData->minWidth) - != TCL_OK) { goto error; } - break; - case O_HEIGHT: - if (Tcl_GetIntFromObj(interp, objv[i+1], &imageData->minHeight) - != TCL_OK) { goto error; } - break; - case O_STICKY: - if (Ttk_GetStickyFromObj(interp, objv[i+1], &imageData->sticky) - != TCL_OK) { goto error; } - } - } - - if (!Ttk_RegisterElement(interp, theme, elementName, &ImageElementSpec, - imageData)) - { - goto error; - } - - Ttk_RegisterCleanup(interp, imageData, FreeImageData); - Tcl_SetObjResult(interp, Tcl_NewStringObj(elementName, -1)); - return TCL_OK; - -error: - FreeImageData(imageData); - return TCL_ERROR; -} - -MODULE_SCOPE -void TtkImage_Init(Tcl_Interp *interp) -{ - Ttk_RegisterElementFactory(interp, "image", Ttk_CreateImageElement, NULL); -} - -/*EOF*/ |