/* $Id: tixDiImg.c,v 1.1.1.1 2000/05/17 11:08:38 idiscovery Exp $ */
/*
* tixDiImgTxt.c --
*
* This file implements one of the "Display Items" in the Tix library :
* Image-text display items.
*
* Copyright (c) 1996, Expert Interface Technologies
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
*/
#include "tixPort.h"
#include "tixInt.h"
#include "tixDef.h"
#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 SELECTED_BG SELECT_BG
#define DISABLED_BG DISABLED
#define DEF_IMAGESTYLE_NORMAL_FG_COLOR BLACK
#define DEF_IMAGESTYLE_NORMAL_FG_MONO BLACK
#define DEF_IMAGESTYLE_NORMAL_BG_COLOR NORMAL_BG
#define DEF_IMAGESTYLE_NORMAL_BG_MONO WHITE
#define DEF_IMAGESTYLE_ACTIVE_FG_COLOR BLACK
#define DEF_IMAGESTYLE_ACTIVE_FG_MONO WHITE
#define DEF_IMAGESTYLE_ACTIVE_BG_COLOR ACTIVE_BG
#define DEF_IMAGESTYLE_ACTIVE_BG_MONO BLACK
#define DEF_IMAGESTYLE_SELECTED_FG_COLOR BLACK
#define DEF_IMAGESTYLE_SELECTED_FG_MONO WHITE
#define DEF_IMAGESTYLE_SELECTED_BG_COLOR SELECTED_BG
#define DEF_IMAGESTYLE_SELECTED_BG_MONO BLACK
#define DEF_IMAGESTYLE_DISABLED_FG_COLOR BLACK
#define DEF_IMAGESTYLE_DISABLED_FG_MONO BLACK
#define DEF_IMAGESTYLE_DISABLED_BG_COLOR DISABLED_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 is 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, char ** argv,
int flags));
static Tix_DItem * Tix_ImageItemCreate _ANSI_ARGS_((
Tix_DispData * ddPtr, Tix_DItemInfo * diTypePtr));
static void Tix_ImageItemDisplay _ANSI_ARGS_((
Pixmap pixmap, GC gc, Tix_DItem * iPtr,
int x, int y, int width, int height, 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, 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,
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;
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;
}
static void Tix_ImageItemDisplay(pixmap, gc, iPtr, x, y, width, height, flags)
Pixmap pixmap;
GC gc;
Tix_DItem * iPtr;
int x;
int y;
int width;
int height;
int flags;
{
TixImageItem *itPtr = (TixImageItem *)iPtr;
GC foreGC, backGC;
TixpSubRegion subReg;
if ((width <= 0) || (height <= 0)) {
return;
}
TixGetColorDItemGC(iPtr, &backGC, &foreGC, flags);
TixpStartSubRegionDraw(itPtr->ddPtr, pixmap, foreGC,
&subReg, 0, 0, x, y, width, height,
itPtr->size[0], itPtr->size[1]);
TixDItemGetAnchor(itPtr->stylePtr->anchor, x, y, width, height,
itPtr->size[0], itPtr->size[1], &x, &y);
if (backGC != None) {
TixpSubRegFillRectangle(itPtr->ddPtr->display, pixmap,
backGC, &subReg, x, y, width, height);
}
if (itPtr->image != NULL) {
int bitY;
bitY = itPtr->size[1] - itPtr->imageH - 2*itPtr->stylePtr->pad[1];
if (bitY > 0) {
bitY = bitY / 2;
} else {
bitY = 0;
}
TixpSubRegDrawImage(&subReg, itPtr->image, 0, 0, itPtr->imageW,
itPtr->imageH, pixmap,
x + itPtr->stylePtr->pad[0],
y + itPtr->stylePtr->pad[1] + bitY);
}
TixpEndSubRegionDraw(itPtr->ddPtr->display, pixmap, 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;
}
itPtr->size[0] += 2*itPtr->stylePtr->pad[0];
itPtr->size[1] += 2*itPtr->stylePtr->pad[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;
{
int i;
TixImageStyle * stylePtr =
(TixImageStyle *)ckalloc(sizeof(TixImageStyle));
stylePtr->pad[0] = 0;
stylePtr->pad[1] = 0;
stylePtr->anchor = TK_ANCHOR_CENTER;
for (i=0; i<4; i++) {
stylePtr->colors[i].bg = NULL;
stylePtr->colors[i].fg = NULL;
stylePtr->colors[i].backGC = None;
stylePtr->colors[i].foreGC = NULL;
}
return (Tix_DItemStyle *)stylePtr;
}
static int
Tix_ImageStyleConfigure(style, argc, argv, flags)
Tix_DItemStyle *style;
int argc;
char ** argv;
int flags;
{
TixImageStyle * stylePtr = (TixImageStyle *)style;
XGCValues gcValues;
GC newGC;
int i;
if (!(flags &TIX_DONT_CALL_CONFIG)) {
if (Tk_ConfigureWidget(stylePtr->interp, stylePtr->tkwin,
imageStyleConfigSpecs,
argc, argv, (char *)stylePtr, flags) != TCL_OK) {
return TCL_ERROR;
}
}
gcValues.graphics_exposures = False;
for (i=0; i<4; i++) {
/* Foreground */
gcValues.background = stylePtr->colors[i].bg->pixel;
gcValues.foreground = stylePtr->colors[i].fg->pixel;
newGC = Tk_GetGC(stylePtr->tkwin,
GCForeground|GCBackground|GCGraphicsExposures, &gcValues);
if (stylePtr->colors[i].foreGC != None) {
Tk_FreeGC(Tk_Display(stylePtr->tkwin),
stylePtr->colors[i].foreGC);
}
stylePtr->colors[i].foreGC = newGC;
/* Background */
gcValues.foreground = stylePtr->colors[i].bg->pixel;
newGC = Tk_GetGC(stylePtr->tkwin,
GCForeground|GCGraphicsExposures, &gcValues);
if (stylePtr->colors[i].backGC != None) {
Tk_FreeGC(Tk_Display(stylePtr->tkwin),
stylePtr->colors[i].backGC);
}
stylePtr->colors[i].backGC = newGC;
}
return TCL_OK;
}
static void Tix_ImageStyleFree(style)
Tix_DItemStyle *style;
{
TixImageStyle * stylePtr = (TixImageStyle *)style;
int i;
for (i=0; i<4; i++) {
if (stylePtr->colors[i].backGC != None) {
Tk_FreeGC(Tk_Display(stylePtr->tkwin), stylePtr->colors[i].backGC);
}
if (stylePtr->colors[i].foreGC != None) {
Tk_FreeGC(Tk_Display(stylePtr->tkwin), stylePtr->colors[i].foreGC);
}
}
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);
}