/* * tixDiImgTxt.c -- * * This file implements one of the "Display Items" in the Tix library : * Image-text display items. * * Copyright (c) 1993-1999 Ioi Kim Lam. * Copyright (c) 2000-2001 Tix Project Group. * * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * * $Id: tixDiImg.c,v 1.4 2004/03/28 02:44:56 hobbs Exp $ */ #include #include #include /* * If the item has a really small text, or no text at all, use * this size. This makes the drawing of selection more sane. */ #define MIN_IMAGE_WIDTH 2 #define MIN_IMAGE_HEIGHT 2 #define DEF_IMAGEITEM_BITMAP "" #define DEF_IMAGEITEM_IMAGE "" #define DEF_IMAGEITEM_TYPE "image" #define DEF_IMAGEITEM_SHOWIMAGE "1" #define DEF_IMAGEITEM_SHOWTEXT "1" #define DEF_IMAGEITEM_STYLE "" #define DEF_IMAGEITEM_TEXT "" #define DEF_IMAGEITEM_UNDERLINE "-1" static Tk_ConfigSpec imageItemConfigSpecs[] = { {TK_CONFIG_STRING, "-image", "image", "Image", DEF_IMAGEITEM_IMAGE, Tk_Offset(TixImageItem, imageString), TK_CONFIG_NULL_OK}, {TK_CONFIG_CUSTOM, "-itemtype", "itemType", "ItemType", DEF_IMAGEITEM_TYPE, Tk_Offset(TixImageItem, diTypePtr), 0, &tixConfigItemType}, {TK_CONFIG_CUSTOM, "-style", "imageStyle", "ImageStyle", DEF_IMAGEITEM_STYLE, Tk_Offset(TixImageItem, stylePtr), TK_CONFIG_NULL_OK, &tixConfigItemStyle}, {TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL, (char *) NULL, 0, 0} }; /*---------------------------------------------------------------------- * * Configuration options for Text Styles * *---------------------------------------------------------------------- */ #define DEF_IMAGESTYLE_NORMAL_FG_COLOR NORMAL_FG #define DEF_IMAGESTYLE_NORMAL_FG_MONO BLACK #define DEF_IMAGESTYLE_NORMAL_BG_COLOR TIX_EDITOR_BG #define DEF_IMAGESTYLE_NORMAL_BG_MONO WHITE #define DEF_IMAGESTYLE_ACTIVE_FG_COLOR NORMAL_FG #define DEF_IMAGESTYLE_ACTIVE_FG_MONO WHITE #define DEF_IMAGESTYLE_ACTIVE_BG_COLOR TIX_EDITOR_BG #define DEF_IMAGESTYLE_ACTIVE_BG_MONO BLACK #define DEF_IMAGESTYLE_SELECTED_FG_COLOR SELECT_FG #define DEF_IMAGESTYLE_SELECTED_FG_MONO WHITE #define DEF_IMAGESTYLE_SELECTED_BG_COLOR SELECT_BG #define DEF_IMAGESTYLE_SELECTED_BG_MONO BLACK #define DEF_IMAGESTYLE_DISABLED_FG_COLOR NORMAL_FG #define DEF_IMAGESTYLE_DISABLED_FG_MONO BLACK #define DEF_IMAGESTYLE_DISABLED_BG_COLOR TIX_EDITOR_BG #define DEF_IMAGESTYLE_DISABLED_BG_MONO WHITE #define DEF_IMAGESTYLE_PADX "0" #define DEF_IMAGESTYLE_PADY "0" #define DEF_IMAGESTYLE_ANCHOR "w" static Tk_ConfigSpec imageStyleConfigSpecs[] = { {TK_CONFIG_ANCHOR, "-anchor", "anchor", "Anchor", DEF_IMAGESTYLE_ANCHOR, Tk_Offset(TixImageStyle, anchor), 0}, {TK_CONFIG_SYNONYM, "-bg", "background", (char *) NULL, (char *) NULL, 0, 0}, {TK_CONFIG_SYNONYM, "-fg", "foreground", (char *) NULL, (char *) NULL, 0, 0}, {TK_CONFIG_PIXELS, "-padx", "padX", "Pad", DEF_IMAGESTYLE_PADX, Tk_Offset(TixImageStyle, pad[0]), 0}, {TK_CONFIG_PIXELS, "-pady", "padY", "Pad", DEF_IMAGESTYLE_PADY, Tk_Offset(TixImageStyle, pad[1]), 0}, /* The following was automatically generated */ {TK_CONFIG_COLOR,"-background","background","Background", DEF_IMAGESTYLE_NORMAL_BG_COLOR, Tk_Offset(TixImageStyle,colors[TIX_DITEM_NORMAL].bg), TK_CONFIG_COLOR_ONLY}, {TK_CONFIG_COLOR,"-background","background","Background", DEF_IMAGESTYLE_NORMAL_BG_MONO, Tk_Offset(TixImageStyle,colors[TIX_DITEM_NORMAL].bg), TK_CONFIG_MONO_ONLY}, {TK_CONFIG_COLOR,"-foreground","foreground","Foreground", DEF_IMAGESTYLE_NORMAL_FG_COLOR, Tk_Offset(TixImageStyle,colors[TIX_DITEM_NORMAL].fg), TK_CONFIG_COLOR_ONLY}, {TK_CONFIG_COLOR,"-foreground","foreground","Foreground", DEF_IMAGESTYLE_NORMAL_FG_MONO, Tk_Offset(TixImageStyle,colors[TIX_DITEM_NORMAL].fg), TK_CONFIG_MONO_ONLY}, {TK_CONFIG_COLOR,"-activebackground","activeBackground","ActiveBackground", DEF_IMAGESTYLE_ACTIVE_BG_COLOR, Tk_Offset(TixImageStyle,colors[TIX_DITEM_ACTIVE].bg), TK_CONFIG_COLOR_ONLY}, {TK_CONFIG_COLOR,"-activebackground","activeBackground","ActiveBackground", DEF_IMAGESTYLE_ACTIVE_BG_MONO, Tk_Offset(TixImageStyle,colors[TIX_DITEM_ACTIVE].bg), TK_CONFIG_MONO_ONLY}, {TK_CONFIG_COLOR,"-activeforeground","activeForeground","ActiveForeground", DEF_IMAGESTYLE_ACTIVE_FG_COLOR, Tk_Offset(TixImageStyle,colors[TIX_DITEM_ACTIVE].fg), TK_CONFIG_COLOR_ONLY}, {TK_CONFIG_COLOR,"-activeforeground","activeForeground","ActiveForeground", DEF_IMAGESTYLE_ACTIVE_FG_MONO, Tk_Offset(TixImageStyle,colors[TIX_DITEM_ACTIVE].fg), TK_CONFIG_MONO_ONLY}, {TK_CONFIG_COLOR,"-selectbackground","selectBackground","SelectBackground", DEF_IMAGESTYLE_SELECTED_BG_COLOR, Tk_Offset(TixImageStyle,colors[TIX_DITEM_SELECTED].bg), TK_CONFIG_COLOR_ONLY}, {TK_CONFIG_COLOR,"-selectbackground","selectBackground","SelectBackground", DEF_IMAGESTYLE_SELECTED_BG_MONO, Tk_Offset(TixImageStyle,colors[TIX_DITEM_SELECTED].bg), TK_CONFIG_MONO_ONLY}, {TK_CONFIG_COLOR,"-selectforeground","selectForeground","SelectForeground", DEF_IMAGESTYLE_SELECTED_FG_COLOR, Tk_Offset(TixImageStyle,colors[TIX_DITEM_SELECTED].fg), TK_CONFIG_COLOR_ONLY}, {TK_CONFIG_COLOR,"-selectforeground","selectForeground","SelectForeground", DEF_IMAGESTYLE_SELECTED_FG_MONO, Tk_Offset(TixImageStyle,colors[TIX_DITEM_SELECTED].fg), TK_CONFIG_MONO_ONLY}, {TK_CONFIG_COLOR,"-disabledbackground","disabledBackground","DisabledBackground", DEF_IMAGESTYLE_DISABLED_BG_COLOR, Tk_Offset(TixImageStyle,colors[TIX_DITEM_DISABLED].bg), TK_CONFIG_COLOR_ONLY}, {TK_CONFIG_COLOR,"-disabledbackground","disabledBackground","DisabledBackground", DEF_IMAGESTYLE_DISABLED_BG_MONO, Tk_Offset(TixImageStyle,colors[TIX_DITEM_DISABLED].bg), TK_CONFIG_MONO_ONLY}, {TK_CONFIG_COLOR,"-disabledforeground","disabledForeground","DisabledForeground", DEF_IMAGESTYLE_DISABLED_FG_COLOR, Tk_Offset(TixImageStyle,colors[TIX_DITEM_DISABLED].fg), TK_CONFIG_COLOR_ONLY}, {TK_CONFIG_COLOR,"-disabledforeground","disabledForeground","DisabledForeground", DEF_IMAGESTYLE_DISABLED_FG_MONO, Tk_Offset(TixImageStyle,colors[TIX_DITEM_DISABLED].fg), TK_CONFIG_MONO_ONLY}, {TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL, (char *) NULL, 0, 0} }; /*---------------------------------------------------------------------- * Forward declarations for procedures defined later in this file: *---------------------------------------------------------------------- */ static void ImageProc _ANSI_ARGS_((ClientData clientData, int x, int y, int width, int height, int imgWidth, int imgHeight)); static void Tix_ImageItemCalculateSize _ANSI_ARGS_(( Tix_DItem * iPtr)); static char * Tix_ImageItemComponent _ANSI_ARGS_(( Tix_DItem * iPtr, int x, int y)); static int Tix_ImageItemConfigure _ANSI_ARGS_(( Tix_DItem * iPtr, int argc, CONST84 char ** argv, int flags)); static Tix_DItem * Tix_ImageItemCreate _ANSI_ARGS_(( Tix_DispData * ddPtr, Tix_DItemInfo * diTypePtr)); static void Tix_ImageItemDisplay _ANSI_ARGS_(( Drawable drawable, Tix_DItem * iPtr, int x, int y, int width, int height, int xOffset, int yOffset, int flag)); static void Tix_ImageItemFree _ANSI_ARGS_(( Tix_DItem * iPtr)); static void Tix_ImageItemLostStyle _ANSI_ARGS_(( Tix_DItem * iPtr)); static void Tix_ImageItemStyleChanged _ANSI_ARGS_(( Tix_DItem * iPtr)); static int Tix_ImageStyleConfigure _ANSI_ARGS_(( Tix_DItemStyle* style, int argc, CONST84 char ** argv, int flags)); static Tix_DItemStyle * Tix_ImageStyleCreate _ANSI_ARGS_(( Tcl_Interp *interp, Tk_Window tkwin, Tix_DItemInfo * diTypePtr, char * name)); static void Tix_ImageStyleFree _ANSI_ARGS_(( Tix_DItemStyle* style)); static void Tix_ImageStyleSetTemplate _ANSI_ARGS_(( Tix_DItemStyle* style, Tix_StyleTemplate * tmplPtr)); Tix_DItemInfo tix_ImageItemType = { "image", /* type */ TIX_DITEM_IMAGE, Tix_ImageItemCreate, /* createProc */ Tix_ImageItemConfigure, Tix_ImageItemCalculateSize, Tix_ImageItemComponent, Tix_ImageItemDisplay, Tix_ImageItemFree, Tix_ImageItemStyleChanged, Tix_ImageItemLostStyle, Tix_ImageStyleCreate, /* styleCreateProc */ Tix_ImageStyleConfigure, Tix_ImageStyleFree, Tix_ImageStyleSetTemplate, imageItemConfigSpecs, imageStyleConfigSpecs, NULL, /*next */ }; /*---------------------------------------------------------------------- * Tix_Image -- * * *---------------------------------------------------------------------- */ static Tix_DItem * Tix_ImageItemCreate(ddPtr, diTypePtr) Tix_DispData * ddPtr; Tix_DItemInfo * diTypePtr; { TixImageItem * itPtr; itPtr = (TixImageItem*) ckalloc(sizeof(TixImageItem)); itPtr->diTypePtr = diTypePtr; itPtr->ddPtr = ddPtr; itPtr->stylePtr = NULL; itPtr->clientData = 0; itPtr->size[0] = 0; itPtr->size[1] = 0; itPtr->imageString = NULL; itPtr->image = NULL; itPtr->imageW = 0; itPtr->imageH = 0; return (Tix_DItem *)itPtr; } static void Tix_ImageItemFree(iPtr) Tix_DItem * iPtr; { TixImageItem * itPtr = (TixImageItem *) iPtr; if (itPtr->image) { Tk_FreeImage(itPtr->image); } if (itPtr->stylePtr) { TixDItemStyleFree(iPtr, (Tix_DItemStyle*)itPtr->stylePtr); } Tk_FreeOptions(imageItemConfigSpecs, (char *)itPtr, itPtr->ddPtr->display, 0); ckfree((char*)itPtr); } static int Tix_ImageItemConfigure(iPtr, argc, argv, flags) Tix_DItem * iPtr; int argc; CONST84 char ** argv; int flags; { TixImageItem * itPtr = (TixImageItem *) iPtr; TixImageStyle * oldStyle = itPtr->stylePtr; if (Tk_ConfigureWidget(itPtr->ddPtr->interp, itPtr->ddPtr->tkwin, imageItemConfigSpecs, argc, argv, (char *)itPtr, flags) != TCL_OK) { return TCL_ERROR; } if (itPtr->stylePtr == NULL) { itPtr->stylePtr = (TixImageStyle*)TixGetDefaultDItemStyle( itPtr->ddPtr, &tix_ImageItemType, iPtr, NULL); } /* * Free the old images for the widget, if there were any. */ if (itPtr->image != NULL) { Tk_FreeImage(itPtr->image); itPtr->image = NULL; } if (itPtr->imageString != NULL) { itPtr->image = Tk_GetImage(itPtr->ddPtr->interp, itPtr->ddPtr->tkwin, itPtr->imageString, ImageProc, (ClientData) itPtr); if (itPtr->image == NULL) { return TCL_ERROR; } } if (oldStyle != NULL && itPtr->stylePtr != oldStyle) { Tix_ImageItemStyleChanged(iPtr); } else { Tix_ImageItemCalculateSize((Tix_DItem*)itPtr); } return TCL_OK; } /* *---------------------------------------------------------------------- * * Tix_ImageItemDisplay -- * * Display an image item. {x, y, width, height} specifies a * region for to display this item in. {xOffset, yOffset} gives * the offset of the top-left corner of the image item relative * to the top-left corder of the region. * * Background and foreground of the item are displayed according * to the flags parameter. * * Results: * None. * * Side effects: * None. * *---------------------------------------------------------------------- */ static void Tix_ImageItemDisplay(drawable, iPtr, x, y, width, height, xOffset, yOffset, flags) Drawable drawable; Tix_DItem * iPtr; int x; int y; int width; int height; int flags; { TixImageItem *itPtr = (TixImageItem *)iPtr; Display * display = itPtr->ddPtr->display; TixpSubRegion subReg; GC foreGC; if ((width <= 0) || (height <= 0)) { return; } TixGetColorDItemGC(iPtr, NULL, &foreGC, NULL, flags); TixpStartSubRegionDraw(display, drawable, foreGC, &subReg, 0, 0, x, y, width, height, itPtr->size[0] + xOffset, itPtr->size[1] + yOffset); Tix_DItemDrawBackground(drawable, &subReg, iPtr, x, y, width, height, xOffset, yOffset, flags); /* * Calculate the location of the image according to anchor settings. */ TixDItemGetAnchor(iPtr->base.stylePtr->anchor, x, y, width, height, iPtr->base.size[0], iPtr->base.size[1], &x, &y); if (itPtr->image != NULL) { /* * Draw the image. */ int bitY; bitY = itPtr->size[1] - itPtr->imageH - 2*itPtr->stylePtr->pad[1]; if (bitY > 0) { bitY = bitY / 2; } else { bitY = 0; } x += xOffset; y += yOffset; TixpSubRegDrawImage(&subReg, itPtr->image, 0, 0, itPtr->imageW, itPtr->imageH, drawable, x + itPtr->stylePtr->pad[0], y + itPtr->stylePtr->pad[1] + bitY); } TixpEndSubRegionDraw(display, drawable, foreGC, &subReg); } static void Tix_ImageItemCalculateSize(iPtr) Tix_DItem * iPtr; { TixImageItem *itPtr = (TixImageItem *)iPtr; itPtr->size[0] = 0; itPtr->size[1] = 0; if (itPtr->image != NULL) { Tk_SizeOfImage(itPtr->image, &itPtr->imageW, &itPtr->imageH); itPtr->size[0] = itPtr->imageW; itPtr->size[1] = itPtr->imageH; } else { itPtr->size[0] = MIN_IMAGE_WIDTH; itPtr->size[0] = MIN_IMAGE_HEIGHT; } itPtr->size[0] += 2*itPtr->stylePtr->pad[0]; itPtr->size[1] += 2*itPtr->stylePtr->pad[1]; itPtr->selX = 0; itPtr->selY = 0; itPtr->selW = itPtr->size[0]; itPtr->selH = itPtr->size[1]; } static char * Tix_ImageItemComponent(iPtr, x, y) Tix_DItem * iPtr; int x; int y; { #if 0 TixImageItem *itPtr = (TixImageItem *)iPtr; #endif static char * body = "body"; return body; } static void Tix_ImageItemStyleChanged(iPtr) Tix_DItem * iPtr; { TixImageItem *itPtr = (TixImageItem *)iPtr; if (itPtr->stylePtr == NULL) { /* Maybe we haven't set the style to default style yet */ return; } Tix_ImageItemCalculateSize(iPtr); if (itPtr->ddPtr->sizeChangedProc != NULL) { itPtr->ddPtr->sizeChangedProc(iPtr); } } static void Tix_ImageItemLostStyle(iPtr) Tix_DItem * iPtr; { TixImageItem *itPtr = (TixImageItem *)iPtr; itPtr->stylePtr = (TixImageStyle*)TixGetDefaultDItemStyle( itPtr->ddPtr, &tix_ImageItemType, iPtr, NULL); Tix_ImageItemStyleChanged(iPtr); } /* *---------------------------------------------------------------------- * * ImageProc -- * * This procedure is invoked by the image code whenever the manager * for an image does something that affects the size of contents * of an image displayed in this widget. * * Results: * None. * * Side effects: * Arranges for the HList to get redisplayed. * *---------------------------------------------------------------------- */ static void ImageProc(clientData, x, y, width, height, imgWidth, imgHeight) ClientData clientData; /* Pointer to widget record. */ int x, y; /* Upper left pixel (within image) * that must be redisplayed. */ int width, height; /* Dimensions of area to redisplay * (may be <= 0). */ int imgWidth, imgHeight; /* New dimensions of image. */ { TixImageItem *itPtr = (TixImageItem *)clientData; Tix_ImageItemCalculateSize((Tix_DItem *)itPtr); if (itPtr->ddPtr->sizeChangedProc != NULL) { itPtr->ddPtr->sizeChangedProc((Tix_DItem *)itPtr); } } /*---------------------------------------------------------------------- * * * Display styles * * *---------------------------------------------------------------------- */ static Tix_DItemStyle * Tix_ImageStyleCreate(interp, tkwin, diTypePtr, name) Tcl_Interp * interp; Tk_Window tkwin; char * name; Tix_DItemInfo * diTypePtr; { TixImageStyle * stylePtr = (TixImageStyle *)ckalloc(sizeof(TixImageStyle)); return (Tix_DItemStyle *)stylePtr; } static int Tix_ImageStyleConfigure(style, argc, argv, flags) Tix_DItemStyle *style; int argc; CONST84 char ** argv; int flags; { TixImageStyle * stylePtr = (TixImageStyle *)style; int oldPadX; int oldPadY; oldPadX = stylePtr->pad[0]; oldPadY = stylePtr->pad[1]; if (!(flags &TIX_DONT_CALL_CONFIG)) { if (Tk_ConfigureWidget(stylePtr->interp, stylePtr->tkwin, imageStyleConfigSpecs, argc, argv, (char *)stylePtr, flags) != TCL_OK) { return TCL_ERROR; } } TixDItemStyleConfigureGCs(style); if (oldPadX != stylePtr->pad[0] || oldPadY != stylePtr->pad[1]) { TixDItemStyleChanged(stylePtr->diTypePtr, (Tix_DItemStyle *)stylePtr); } return TCL_OK; } static void Tix_ImageStyleFree(style) Tix_DItemStyle *style; { TixImageStyle * stylePtr = (TixImageStyle *)style; Tk_FreeOptions(imageStyleConfigSpecs, (char *)stylePtr, Tk_Display(stylePtr->tkwin), 0); ckfree((char *)stylePtr); } static int bg_flags [4] = { TIX_DITEM_NORMAL_BG, TIX_DITEM_ACTIVE_BG, TIX_DITEM_SELECTED_BG, TIX_DITEM_DISABLED_BG }; static int fg_flags [4] = { TIX_DITEM_NORMAL_FG, TIX_DITEM_ACTIVE_FG, TIX_DITEM_SELECTED_FG, TIX_DITEM_DISABLED_FG }; static void Tix_ImageStyleSetTemplate(style, tmplPtr) Tix_DItemStyle* style; Tix_StyleTemplate * tmplPtr; { TixImageStyle * stylePtr = (TixImageStyle *)style; int i; if (tmplPtr->flags & TIX_DITEM_PADX) { stylePtr->pad[0] = tmplPtr->pad[0]; } if (tmplPtr->flags & TIX_DITEM_PADY) { stylePtr->pad[1] = tmplPtr->pad[1]; } for (i=0; i<4; i++) { if (tmplPtr->flags & bg_flags[i]) { if (stylePtr->colors[i].bg != NULL) { Tk_FreeColor(stylePtr->colors[i].bg); } stylePtr->colors[i].bg = Tk_GetColor( stylePtr->interp, stylePtr->tkwin, Tk_NameOfColor(tmplPtr->colors[i].bg)); } } for (i=0; i<4; i++) { if (tmplPtr->flags & fg_flags[i]) { if (stylePtr->colors[i].fg != NULL) { Tk_FreeColor(stylePtr->colors[i].fg); } stylePtr->colors[i].fg = Tk_GetColor( stylePtr->interp, stylePtr->tkwin, Tk_NameOfColor(tmplPtr->colors[i].fg)); } } Tix_ImageStyleConfigure(style, 0, 0, TIX_DONT_CALL_CONFIG); }