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tkUnixButton.c
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1062 lines (940 loc) · 31.4 KB
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/*
* tkUnixButton.c --
*
* This file implements the Unix specific portion of the button widgets.
*
* Copyright © 1996-1997 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#include "tkInt.h"
#include "tkButton.h"
#include "tk3d.h"
/*
* Shared with menu widget.
*/
MODULE_SCOPE void TkpDrawCheckIndicator(Tk_Window tkwin,
Display *display, Drawable d, int x, int y,
Tk_3DBorder bgBorder, XColor *indicatorColor,
XColor *selectColor, XColor *disColor, int on,
int disabled, int mode);
/*
* Declaration of Unix specific button structure.
*/
typedef struct UnixButton {
TkButton info; /* Generic button info. */
} UnixButton;
/*
* The class function table for the button widgets.
*/
const Tk_ClassProcs tkpButtonProcs = {
sizeof(Tk_ClassProcs), /* size */
TkButtonWorldChanged, /* worldChangedProc */
NULL, /* createProc */
NULL /* modalProc */
};
/*
* Indicator draw modes
*/
#define CHECK_BUTTON 0
#define CHECK_MENU 1
#define RADIO_BUTTON 2
#define RADIO_MENU 3
/*
* Indicator sizes
*/
#define CHECK_BUTTON_DIM 16
#define CHECK_MENU_DIM 8
#define RADIO_BUTTON_DIM 16
#define RADIO_MENU_DIM 8
/*
* Data of the SVG images used for drawing the indicators
*/
static const char checkbtnOffData[] =
"<svg id='checkbutton' width='16' height='16' version='1.1' xmlns='http://www.w3.org/2000/svg'>\n"
" <path id='borderdark' d='m0 0v16l1-1v-14h14l1-1h-16z' fill='#DARKKK'/>\n"
" <path id='borderlight' d='m16 0-1 1v14h-14l-1 1h16v-16z' fill='#LIGHTT'/>\n"
" <rect id='rectbackdrop' x='2' y='2' width='12' height='12' fill='#INTROR'/>\n"
"</svg>";
static const char checkbtnOnData[] =
"<svg id='checkbutton' width='16' height='16' version='1.1' xmlns='http://www.w3.org/2000/svg'>\n"
" <path id='borderdark' d='m0 0v16l1-1v-14h14l1-1h-16z' fill='#DARKKK'/>\n"
" <path id='borderlight' d='m16 0-1 1v14h-14l-1 1h16v-16z' fill='#LIGHTT'/>\n"
" <rect id='rectbackdrop' x='2' y='2' width='12' height='12' fill='#INTROR'/>\n"
" <path id='indicator' d='m4.5 8 3 3 4-6' fill='none' stroke='#INDCTR' stroke-linecap='round' stroke-linejoin='round' stroke-width='2'/>\n"
"</svg>";
static const char radiobtnOffData[] =
"<svg id='radiobutton' width='16' height='16' version='1.1' xmlns='http://www.w3.org/2000/svg'>\n"
" <defs>\n"
" <linearGradient id='gradient' x1='5' y1='5' x2='11' y2='11' gradientUnits='userSpaceOnUse'>\n"
" <stop stop-color='#DARKKK' offset='0'/>\n"
" <stop stop-color='#LIGHTT' offset='1' stop-opacity='0'/>\n"
" </linearGradient>\n"
" </defs>\n"
" <circle cx='8' cy='8' r='8' fill='url(#gradient)'/>\n"
" <circle cx='8' cy='8' r='6.5' fill='#INTROR'/>\n"
"</svg>";
static const char radiobtnOnData[] =
"<svg id='radiobutton' width='16' height='16' version='1.1' xmlns='http://www.w3.org/2000/svg'>\n"
" <defs>\n"
" <linearGradient id='gradient' x1='5' y1='5' x2='11' y2='11' gradientUnits='userSpaceOnUse'>\n"
" <stop stop-color='#DARKKK' offset='0'/>\n"
" <stop stop-color='#LIGHTT' offset='1' stop-opacity='0'/>\n"
" </linearGradient>\n"
" </defs>\n"
" <circle cx='8' cy='8' r='8' fill='url(#gradient)'/>\n"
" <circle cx='8' cy='8' r='7' fill='#INTROR'/>\n"
" <circle cx='8' cy='8' r='4' fill='#INDCTR'/>\n"
"</svg>";
static const char menuOffData[] =
"<svg width='8' height='8' version='1.1' xmlns='http://www.w3.org/2000/svg'></svg>";
static const char checkmenuOnData[] =
"<svg width='8' height='8' version='1.1' xmlns='http://www.w3.org/2000/svg'>\n"
" <path id='indicator' d='m1 3.5 2.5 3 3.5-5' fill='none' stroke='#INDCTR' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.975'/>\n"
"</svg>";
static const char radiomenuOnData[] =
"<svg width='8' height='8' version='1.1' xmlns='http://www.w3.org/2000/svg'>\n"
" <circle cx='4' cy='4' r='3' fill='#INDCTR'/>\n"
"</svg>";
/*
*----------------------------------------------------------------------
*
* TkpDrawCheckIndicator -
*
* Draws the checkbox image in the drawable at the (x,y) location, value,
* and state given. This routine is used by the button and menu widgets.
*
* Results:
* None.
*
* Side effects:
* An image is drawn in the drawable at the location given.
*
*----------------------------------------------------------------------
*/
static void
ColorToStr(
const XColor *colorPtr, /* specifies a color */
char *colorStr) /* memory area to which the color is to be
output in the format "RRGGBB" */
{
snprintf(colorStr, 7, "%02x%02x%02x",
colorPtr->red >> 8, colorPtr->green >> 8, colorPtr->blue >> 8);
}
static void
ImageChanged( /* to be passed to Tk_GetImage() */
void *clientData,
int x, int y, int width, int height,
int imageWidth, int imageHeight)
{
(void)clientData;
(void)x; (void)y; (void)width; (void)height;
(void)imageWidth; (void)imageHeight;
}
void
TkpDrawCheckIndicator(
Tk_Window tkwin, /* handle for resource alloc */
Display *display,
Drawable d, /* what to draw on */
int x, int y, /* where to draw */
Tk_3DBorder bgBorder, /* colors of the border */
XColor *indicatorColor, /* color of the indicator */
XColor *selectColor, /* color when selected */
XColor *disableColor, /* color when disabled */
int on, /* are we on? */
int disabled, /* are we disabled? */
int mode) /* kind of indicator to draw */
{
const char *svgDataPtr;
int hasBorder, hasInterior, dim;
double scalingLevel = TkScalingLevel(tkwin);
TkBorder *bg_brdr = (TkBorder*)bgBorder;
char darkColorStr[7], lightColorStr[7], interiorColorStr[7], indicatorColorStr[7];
Tcl_Interp *interp = Tk_Interp(tkwin);
char imgName[60];
Tk_Image img;
size_t svgDataLen;
char *svgDataCopy;
char *darkColorPtr, *lightColorPtr, *interiorColorPtr, *indicatorColorPtr;
const char *cmdFmt;
size_t scriptSize;
char *script;
int code;
/*
* Sanity check
*/
if (tkwin == NULL || display == NULL || d == None || bgBorder == NULL
|| indicatorColor == NULL) {
return;
}
if (disableColor == NULL) {
disableColor = bg_brdr->bgColorPtr;
}
if (selectColor == NULL) {
selectColor = bg_brdr->bgColorPtr;
}
/*
* Determine the SVG data to use for the
* photo image and the latter's dimensions
*/
switch (mode) {
default:
case CHECK_BUTTON:
svgDataPtr = (on == 0 ? checkbtnOffData : checkbtnOnData);
hasBorder = 1; hasInterior = 1;
dim = CHECK_BUTTON_DIM;
break;
case CHECK_MENU:
svgDataPtr = (on == 0 ? menuOffData : checkmenuOnData);
hasBorder = 0; hasInterior = 0;
dim = CHECK_MENU_DIM;
break;
case RADIO_BUTTON:
svgDataPtr = (on == 0 ? radiobtnOffData : radiobtnOnData);
hasBorder = 1; hasInterior = 1;
dim = RADIO_BUTTON_DIM;
break;
case RADIO_MENU:
svgDataPtr = (on == 0 ? menuOffData : radiomenuOnData);
hasBorder = 0; hasInterior = 0;
dim = RADIO_MENU_DIM;
break;
}
dim = (int)(dim * scalingLevel);
/*
* Construct the color strings darkColorStr, lightColorStr,
* interiorColorStr, and indicatorColorStr
*/
TkpGetShadows(bg_brdr, tkwin);
if (bg_brdr->darkColorPtr == NULL) {
strcpy(darkColorStr, "000000");
} else {
ColorToStr(Tk_GetColorByValue(tkwin, bg_brdr->darkColorPtr),
darkColorStr);
}
if (bg_brdr->lightColorPtr == NULL) {
strcpy(lightColorStr, "ffffff");
} else {
ColorToStr(Tk_GetColorByValue(tkwin, bg_brdr->lightColorPtr),
lightColorStr);
}
if (on == 2 || disabled) { /* tri-state or disabled */
ColorToStr(Tk_GetColorByValue(tkwin, bg_brdr->bgColorPtr),
interiorColorStr);
ColorToStr(Tk_GetColorByValue(tkwin, disableColor),
indicatorColorStr);
} else {
ColorToStr(Tk_GetColorByValue(tkwin, selectColor),
interiorColorStr);
ColorToStr(Tk_GetColorByValue(tkwin, indicatorColor),
indicatorColorStr);
}
/*
* Check whether there is an SVG image of this size
* for the value of mode and these color strings
*/
snprintf(imgName, sizeof(imgName),
"::tk::icons::indicator%d_%d_%s_%s_%s_%s",
dim, mode,
hasBorder ? darkColorStr : "XXXXXX",
hasBorder ? lightColorStr : "XXXXXX",
hasInterior ? interiorColorStr : "XXXXXX",
on ? indicatorColorStr : "XXXXXX");
img = Tk_GetImage(interp, tkwin, imgName, ImageChanged, NULL);
if (img == NULL) {
/*
* Copy the string pointed to by svgDataPtr to
* a newly allocated memory area svgDataCopy
*/
svgDataLen = strlen(svgDataPtr);
svgDataCopy = (char *)attemptckalloc(svgDataLen + 1);
if (svgDataCopy == NULL) {
return;
}
memcpy(svgDataCopy, svgDataPtr, svgDataLen);
svgDataCopy[svgDataLen] = '\0';
/*
* Update the colors within svgDataCopy
*/
darkColorPtr = strstr(svgDataCopy, "DARKKK");
lightColorPtr = strstr(svgDataCopy, "LIGHTT");
interiorColorPtr = strstr(svgDataCopy, "INTROR");
indicatorColorPtr = strstr(svgDataCopy, "INDCTR");
if (darkColorPtr != NULL) {
memcpy(darkColorPtr, darkColorStr, 6);
}
if (lightColorPtr != NULL) {
memcpy(lightColorPtr, lightColorStr, 6);
}
if (interiorColorPtr != NULL) {
memcpy(interiorColorPtr, interiorColorStr, 6);
}
if (indicatorColorPtr != NULL) {
memcpy(indicatorColorPtr, indicatorColorStr, 6);
}
/*
* Create an SVG photo image from svgDataCopy
*/
cmdFmt = "image create photo %s -format $::tk::svgFmt -data {%s}";
scriptSize = strlen(cmdFmt) + strlen(imgName) + svgDataLen;
script = (char *)attemptckalloc(scriptSize);
if (script == NULL) {
ckfree(svgDataCopy);
return;
}
snprintf(script, scriptSize, cmdFmt, imgName, svgDataCopy);
ckfree(svgDataCopy);
code = Tcl_EvalEx(interp, script, TCL_INDEX_NONE, TCL_EVAL_GLOBAL);
ckfree(script);
if (code != TCL_OK) {
Tcl_BackgroundException(interp, code);
return;
}
img = Tk_GetImage(interp, tkwin, imgName, ImageChanged, NULL);
}
/*
* Adjust the image's coordinates in the drawable and display the image
*/
x -= dim/2;
y -= dim/2;
Tk_RedrawImage(img, 0, 0, dim, dim, d, x, y);
Tk_FreeImage(img);
}
/*
*----------------------------------------------------------------------
*
* TkpCreateButton --
*
* Allocate a new TkButton structure.
*
* Results:
* Returns a newly allocated TkButton structure.
*
* Side effects:
* Registers an event handler for the widget.
*
*----------------------------------------------------------------------
*/
TkButton *
TkpCreateButton(
TCL_UNUSED(Tk_Window))
{
return (TkButton *)ckalloc(sizeof(UnixButton));
}
/*
*----------------------------------------------------------------------
*
* TkpDisplayButton --
*
* This function is invoked to display a button widget. It is normally
* invoked as an idle handler.
*
* Results:
* None.
*
* Side effects:
* Commands are output to X to display the button in its current mode.
* The REDRAW_PENDING flag is cleared.
*
*----------------------------------------------------------------------
*/
static void
ShiftByOffset(
TkButton *butPtr,
int relief,
int *x, /* shift this x coordinate */
int *y, /* shift this y coordinate */
int width, /* width of image/text */
int height) /* height of image/text */
{
if (relief != TK_RELIEF_RAISED
&& butPtr->type == TYPE_BUTTON
&& !Tk_StrictMotif(butPtr->tkwin)) {
int shiftX;
int shiftY;
/*
* This is an (unraised) button widget, so we offset the text to make
* the button appear to move up and down as the relief changes.
*/
shiftX = shiftY = (relief == TK_RELIEF_SUNKEN) ? 2 : 1;
if (relief != TK_RELIEF_RIDGE) {
/*
* Take back one pixel if the padding is even, otherwise the
* content will be displayed too far right/down.
*/
if ((Tk_Width(butPtr->tkwin) - width) % 2 == 0) {
shiftX -= 1;
}
if ((Tk_Height(butPtr->tkwin) - height) % 2 == 0) {
shiftY -= 1;
}
}
*x += shiftX;
*y += shiftY;
}
}
void
TkpDisplayButton(
void *clientData) /* Information about widget. */
{
TkButton *butPtr = (TkButton *)clientData;
GC gc;
Tk_3DBorder border;
Pixmap pixmap;
int x = 0; /* Initialization only needed to stop compiler
* warning. */
int y, relief;
Tk_Window tkwin = butPtr->tkwin;
int width = 0, height = 0, fullWidth, fullHeight;
int textXOffset, textYOffset;
int haveImage = 0, haveText = 0;
int imageWidth, imageHeight;
int imageXOffset = 0, imageYOffset = 0;
/* image information that will be used to
* restrict disabled pixmap as well */
int padX, padY, borderWidth, highlightWidth;
butPtr->flags &= ~REDRAW_PENDING;
if ((butPtr->tkwin == NULL) || !Tk_IsMapped(tkwin)) {
return;
}
border = butPtr->normalBorder;
if ((butPtr->state == STATE_DISABLED) && (butPtr->disabledFg != NULL)) {
gc = butPtr->disabledGC;
} else if ((butPtr->state == STATE_ACTIVE)
&& !Tk_StrictMotif(butPtr->tkwin)) {
gc = butPtr->activeTextGC;
border = butPtr->activeBorder;
} else {
gc = butPtr->normalTextGC;
}
if ((butPtr->flags & SELECTED) && (butPtr->selectBorder != NULL)
&& !butPtr->indicatorOn) {
border = butPtr->selectBorder;
}
/*
* Override the relief specified for the button if this is a checkbutton
* or radiobutton and there's no indicator. The new relief is as follows:
* If the button is select --> "sunken"
* If relief==overrelief --> relief
* Otherwise --> overrelief
*
* The effect we are trying to achieve is as follows:
*
* value mouse-over? --> relief
* ------- ------------ --------
* off no flat
* off yes raised
* on no sunken
* on yes sunken
*
* This is accomplished by configuring the checkbutton or radiobutton like
* this:
*
* -indicatoron 0 -overrelief raised -offrelief flat
*
* Bindings (see library/button.tcl) will copy the -overrelief into
* -relief on mouseover. Hence, we can tell if we are in mouse-over by
* comparing relief against overRelief. This is an aweful kludge, but it
* gives use the desired behavior while keeping the code backwards
* compatible.
*/
relief = butPtr->relief;
if ((butPtr->type >= TYPE_CHECK_BUTTON) && !butPtr->indicatorOn) {
if (butPtr->flags & SELECTED) {
relief = TK_RELIEF_SUNKEN;
} else if (butPtr->overRelief != relief) {
relief = butPtr->offRelief;
}
}
/*
* In order to avoid screen flashes, this function redraws the button in a
* pixmap, then copies the pixmap to the screen in a single operation.
* This means that there's no point in time where the on-screen image has
* been cleared.
*/
pixmap = Tk_GetPixmap(butPtr->display, Tk_WindowId(tkwin),
Tk_Width(tkwin), Tk_Height(tkwin), Tk_Depth(tkwin));
Tk_Fill3DRectangle(tkwin, pixmap, border, 0, 0, Tk_Width(tkwin),
Tk_Height(tkwin), 0, TK_RELIEF_FLAT);
/*
* Display image or bitmap or text for button.
*/
if (butPtr->image != NULL) {
Tk_SizeOfImage(butPtr->image, &width, &height);
haveImage = 1;
} else if (butPtr->bitmap != None) {
Tk_SizeOfBitmap(butPtr->display, butPtr->bitmap, &width, &height);
haveImage = 1;
}
imageWidth = width;
imageHeight = height;
Tk_GetPixelsFromObj(NULL, tkwin, butPtr->padXObj, &padX);
Tk_GetPixelsFromObj(NULL, tkwin, butPtr->padYObj, &padY);
Tk_GetPixelsFromObj(NULL, tkwin, butPtr->borderWidthObj, &borderWidth);
Tk_GetPixelsFromObj(NULL, tkwin, butPtr->highlightWidthObj, &highlightWidth);
haveText = (butPtr->textWidth != 0 && butPtr->textHeight != 0);
if (butPtr->compound != COMPOUND_NONE && haveImage && haveText) {
textXOffset = 0;
textYOffset = 0;
fullWidth = 0;
fullHeight = 0;
switch ((enum compound) butPtr->compound) {
case COMPOUND_TOP:
case COMPOUND_BOTTOM:
/*
* Image is above or below text.
*/
if (butPtr->compound == COMPOUND_TOP) {
textYOffset = height + padY;
} else {
imageYOffset = butPtr->textHeight + padY;
}
fullHeight = height + butPtr->textHeight + padY;
fullWidth = (width > butPtr->textWidth ? width :
butPtr->textWidth);
textXOffset = (fullWidth - butPtr->textWidth)/2;
imageXOffset = (fullWidth - width)/2;
break;
case COMPOUND_LEFT:
case COMPOUND_RIGHT:
/*
* Image is left or right of text.
*/
if (butPtr->compound == COMPOUND_LEFT) {
textXOffset = width + padX;
} else {
imageXOffset = butPtr->textWidth + padX;
}
fullWidth = butPtr->textWidth + padX + width;
fullHeight = (height > butPtr->textHeight ? height :
butPtr->textHeight);
textYOffset = (fullHeight - butPtr->textHeight)/2;
imageYOffset = (fullHeight - height)/2;
break;
case COMPOUND_CENTER:
/*
* Image and text are superimposed.
*/
fullWidth = (width > butPtr->textWidth ? width :
butPtr->textWidth);
fullHeight = (height > butPtr->textHeight ? height :
butPtr->textHeight);
textXOffset = (fullWidth - butPtr->textWidth)/2;
imageXOffset = (fullWidth - width)/2;
textYOffset = (fullHeight - butPtr->textHeight)/2;
imageYOffset = (fullHeight - height)/2;
break;
case COMPOUND_NONE:
break;
}
TkComputeAnchor(butPtr->anchor, tkwin, padX, padY,
butPtr->indicatorSpace + fullWidth, fullHeight, &x, &y);
x += butPtr->indicatorSpace;
ShiftByOffset(butPtr, relief, &x, &y, width, height);
imageXOffset += x;
imageYOffset += y;
if (butPtr->image != NULL) {
/*
* Do boundary clipping, so that Tk_RedrawImage is passed valid
* coordinates. [Bug 979239]
*/
if (imageXOffset < 0) {
imageXOffset = 0;
}
if (imageYOffset < 0) {
imageYOffset = 0;
}
if (width > Tk_Width(tkwin)) {
width = Tk_Width(tkwin);
}
if (height > Tk_Height(tkwin)) {
height = Tk_Height(tkwin);
}
if ((width + imageXOffset) > Tk_Width(tkwin)) {
imageXOffset = Tk_Width(tkwin) - width;
}
if ((height + imageYOffset) > Tk_Height(tkwin)) {
imageYOffset = Tk_Height(tkwin) - height;
}
if ((butPtr->selectImage != NULL) && (butPtr->flags & SELECTED)) {
Tk_RedrawImage(butPtr->selectImage, 0, 0,
width, height, pixmap, imageXOffset, imageYOffset);
} else if ((butPtr->tristateImage != NULL) && (butPtr->flags & TRISTATED)) {
Tk_RedrawImage(butPtr->tristateImage, 0, 0,
width, height, pixmap, imageXOffset, imageYOffset);
} else {
Tk_RedrawImage(butPtr->image, 0, 0, width,
height, pixmap, imageXOffset, imageYOffset);
}
} else {
XSetClipOrigin(butPtr->display, gc, imageXOffset, imageYOffset);
XCopyPlane(butPtr->display, butPtr->bitmap, pixmap, gc,
0, 0, (unsigned int) width, (unsigned int) height,
imageXOffset, imageYOffset, 1);
XSetClipOrigin(butPtr->display, gc, 0, 0);
}
Tk_DrawTextLayout(butPtr->display, pixmap, gc,
butPtr->textLayout, x + textXOffset, y + textYOffset, 0, -1);
Tk_UnderlineTextLayout(butPtr->display, pixmap, gc,
butPtr->textLayout, x + textXOffset, y + textYOffset,
butPtr->underline);
y += fullHeight/2;
} else {
if (haveImage) {
TkComputeAnchor(butPtr->anchor, tkwin, 0, 0,
butPtr->indicatorSpace + width, height, &x, &y);
x += butPtr->indicatorSpace;
ShiftByOffset(butPtr, relief, &x, &y, width, height);
imageXOffset += x;
imageYOffset += y;
if (butPtr->image != NULL) {
/*
* Do boundary clipping, so that Tk_RedrawImage is passed
* valid coordinates. [Bug 979239]
*/
if (imageXOffset < 0) {
imageXOffset = 0;
}
if (imageYOffset < 0) {
imageYOffset = 0;
}
if (width > Tk_Width(tkwin)) {
width = Tk_Width(tkwin);
}
if (height > Tk_Height(tkwin)) {
height = Tk_Height(tkwin);
}
if ((width + imageXOffset) > Tk_Width(tkwin)) {
imageXOffset = Tk_Width(tkwin) - width;
}
if ((height + imageYOffset) > Tk_Height(tkwin)) {
imageYOffset = Tk_Height(tkwin) - height;
}
if ((butPtr->selectImage != NULL) &&
(butPtr->flags & SELECTED)) {
Tk_RedrawImage(butPtr->selectImage, 0, 0, width,
height, pixmap, imageXOffset, imageYOffset);
} else if ((butPtr->tristateImage != NULL) &&
(butPtr->flags & TRISTATED)) {
Tk_RedrawImage(butPtr->tristateImage, 0, 0, width,
height, pixmap, imageXOffset, imageYOffset);
} else {
Tk_RedrawImage(butPtr->image, 0, 0, width, height, pixmap,
imageXOffset, imageYOffset);
}
} else {
XSetClipOrigin(butPtr->display, gc, x, y);
XCopyPlane(butPtr->display, butPtr->bitmap, pixmap, gc, 0, 0,
(unsigned int) width, (unsigned int) height, x, y, 1);
XSetClipOrigin(butPtr->display, gc, 0, 0);
}
y += height/2;
} else {
TkComputeAnchor(butPtr->anchor, tkwin, padX, padY,
butPtr->indicatorSpace + butPtr->textWidth,
butPtr->textHeight, &x, &y);
x += butPtr->indicatorSpace;
ShiftByOffset(butPtr, relief, &x, &y, width, height);
Tk_DrawTextLayout(butPtr->display, pixmap, gc, butPtr->textLayout,
x, y, 0, -1);
Tk_UnderlineTextLayout(butPtr->display, pixmap, gc,
butPtr->textLayout, x, y, butPtr->underline);
y += butPtr->textHeight/2;
}
}
/*
* Draw the indicator for check buttons and radio buttons. At this point,
* x and y refer to the top-left corner of the text or image or bitmap.
*/
if ((butPtr->type == TYPE_CHECK_BUTTON || butPtr->type == TYPE_RADIO_BUTTON)
&& butPtr->indicatorOn
&& butPtr->indicatorDiameter > 2 * borderWidth) {
TkBorder *selBorder = (TkBorder *) butPtr->selectBorder;
XColor *selColor = NULL;
int btype = (butPtr->type == TYPE_CHECK_BUTTON ?
CHECK_BUTTON : RADIO_BUTTON);
if (selBorder != NULL) {
selColor = selBorder->bgColorPtr;
}
x -= butPtr->indicatorSpace/2;
y = Tk_Height(tkwin)/2;
TkpDrawCheckIndicator(tkwin, butPtr->display, pixmap, x, y,
border, butPtr->normalFg, selColor, butPtr->disabledFg,
((butPtr->flags & SELECTED) ? 1 :
(butPtr->flags & TRISTATED) ? 2 : 0),
(butPtr->state == STATE_DISABLED), btype);
}
/*
* If the button is disabled with a stipple rather than a special
* foreground color, generate the stippled effect. If the widget is
* selected and we use a different background color when selected, must
* temporarily modify the GC so the stippling is the right color.
*/
if ((butPtr->state == STATE_DISABLED)
&& ((butPtr->disabledFg == NULL) || (butPtr->image != NULL))) {
if ((butPtr->flags & SELECTED) && !butPtr->indicatorOn
&& (butPtr->selectBorder != NULL)) {
XSetForeground(butPtr->display, butPtr->stippleGC,
Tk_3DBorderColor(butPtr->selectBorder)->pixel);
}
/*
* Stipple the whole button if no disabledFg was specified, otherwise
* restrict stippling only to displayed image
*/
if (butPtr->disabledFg == NULL) {
XFillRectangle(butPtr->display, pixmap, butPtr->stippleGC, 0, 0,
(unsigned) Tk_Width(tkwin), (unsigned) Tk_Height(tkwin));
} else {
XFillRectangle(butPtr->display, pixmap, butPtr->stippleGC,
imageXOffset, imageYOffset,
(unsigned) imageWidth, (unsigned) imageHeight);
}
if ((butPtr->flags & SELECTED) && !butPtr->indicatorOn
&& (butPtr->selectBorder != NULL)) {
XSetForeground(butPtr->display, butPtr->stippleGC,
Tk_3DBorderColor(butPtr->normalBorder)->pixel);
}
}
/*
* Draw the border and traversal highlight last. This way, if the button's
* contents overflow they'll be covered up by the border. This code is
* complicated by the possible combinations of focus highlight and default
* rings. We draw the focus and highlight rings using the highlight border
* and highlight foreground color.
*/
if (relief != TK_RELIEF_FLAT) {
int inset = highlightWidth;
if (butPtr->defaultState == DEFAULT_ACTIVE) {
/*
* Draw the default ring with 2 pixels of space between the
* default ring and the button and the default ring and the focus
* ring. Note that we need to explicitly draw the space in the
* highlightBorder color to ensure that we overwrite any overflow
* text and/or a different button background color.
*/
Tk_Draw3DRectangle(tkwin, pixmap, butPtr->highlightBorder, inset,
inset, Tk_Width(tkwin) - 2 * inset,
Tk_Height(tkwin) - 2 * inset, 2, TK_RELIEF_FLAT);
inset += 2;
Tk_Draw3DRectangle(tkwin, pixmap, butPtr->highlightBorder, inset,
inset, Tk_Width(tkwin) - 2 * inset,
Tk_Height(tkwin) - 2 * inset, 1, TK_RELIEF_SUNKEN);
inset++;
Tk_Draw3DRectangle(tkwin, pixmap, butPtr->highlightBorder, inset,
inset, Tk_Width(tkwin) - 2 * inset,
Tk_Height(tkwin) - 2 * inset, 2, TK_RELIEF_FLAT);
inset += 2;
} else if (butPtr->defaultState == DEFAULT_NORMAL) {
/*
* Leave room for the default ring and write over any text or
* background color.
*/
Tk_Draw3DRectangle(tkwin, pixmap, butPtr->highlightBorder, 0,
0, Tk_Width(tkwin), Tk_Height(tkwin), 5, TK_RELIEF_FLAT);
inset += 5;
}
/*
* Draw the button border.
*/
Tk_Draw3DRectangle(tkwin, pixmap, border, inset, inset,
Tk_Width(tkwin) - 2 * inset, Tk_Height(tkwin) - 2 * inset,
borderWidth, relief);
}
if (highlightWidth > 0) {
if (butPtr->flags & GOT_FOCUS) {
gc = Tk_GCForColor(butPtr->highlightColorPtr, pixmap);
} else {
gc = Tk_GCForColor(Tk_3DBorderColor(butPtr->highlightBorder),
pixmap);
}
/*
* Make sure the focus ring shrink-wraps the actual button, not the
* padding space left for a default ring.
*/
if (butPtr->defaultState == DEFAULT_NORMAL) {
TkDrawInsetFocusHighlight(tkwin, gc, highlightWidth,
pixmap, 5);
} else {
Tk_DrawFocusHighlight(tkwin, gc, highlightWidth, pixmap);
}
}
/*
* Copy the information from the off-screen pixmap onto the screen, then
* delete the pixmap.
*/
XCopyArea(butPtr->display, pixmap, Tk_WindowId(tkwin),
butPtr->copyGC, 0, 0, (unsigned) Tk_Width(tkwin),
(unsigned) Tk_Height(tkwin), 0, 0);
Tk_FreePixmap(butPtr->display, pixmap);
}
/*
*----------------------------------------------------------------------
*
* TkpComputeButtonGeometry --
*
* After changes in a button's text or bitmap, this function recomputes
* the button's geometry and passes this information along to the
* geometry manager for the window.
*
* Results:
* None.
*
* Side effects:
* The button's window may change size.
*
*----------------------------------------------------------------------
*/
void
TkpComputeButtonGeometry(
TkButton *butPtr) /* Button whose geometry may have changed. */
{
int width, height, avgWidth, txtWidth, txtHeight;
int haveImage = 0, haveText = 0;
Tk_FontMetrics fm;
int padX, padY, borderWidth, highlightWidth, wrapLength;
int butPtrWidth, butPtrHeight;
Tk_GetPixelsFromObj(NULL, butPtr->tkwin, butPtr->highlightWidthObj, &highlightWidth);
Tk_GetPixelsFromObj(NULL, butPtr->tkwin, butPtr->borderWidthObj, &borderWidth);
Tk_GetPixelsFromObj(NULL, butPtr->tkwin, butPtr->padXObj, &padX);
Tk_GetPixelsFromObj(NULL, butPtr->tkwin, butPtr->padYObj, &padY);
Tk_GetPixelsFromObj(NULL, butPtr->tkwin, butPtr->wrapLengthObj, &wrapLength);
Tk_GetPixelsFromObj(NULL, butPtr->tkwin, butPtr->widthObj, &butPtrWidth);
Tk_GetPixelsFromObj(NULL, butPtr->tkwin, butPtr->heightObj, &butPtrHeight);
butPtr->inset = highlightWidth + borderWidth;
/*
* Leave room for the default ring if needed.
*/
if (butPtr->defaultState != DEFAULT_DISABLED) {
butPtr->inset += 5;
}
butPtr->indicatorSpace = 0;
width = 0;
height = 0;
txtWidth = 0;
txtHeight = 0;
avgWidth = 0;
if (butPtr->image != NULL) {
Tk_SizeOfImage(butPtr->image, &width, &height);
haveImage = 1;
} else if (butPtr->bitmap != None) {
Tk_SizeOfBitmap(butPtr->display, butPtr->bitmap, &width, &height);
haveImage = 1;
}
if (haveImage == 0 || butPtr->compound != COMPOUND_NONE) {
Tk_FreeTextLayout(butPtr->textLayout);
butPtr->textLayout = Tk_ComputeTextLayout(butPtr->tkfont,
Tcl_GetString(butPtr->textPtr), TCL_INDEX_NONE, wrapLength,
butPtr->justify, 0, &butPtr->textWidth, &butPtr->textHeight);
txtWidth = butPtr->textWidth;
txtHeight = butPtr->textHeight;
avgWidth = Tk_TextWidth(butPtr->tkfont, "0", 1);
Tk_GetFontMetrics(butPtr->tkfont, &fm);
haveText = (txtWidth != 0 && txtHeight != 0);
}
/*
* If the button is compound (i.e., it shows both an image and text), the
* new geometry is a combination of the image and text geometry. We only
* honor the compound bit if the button has both text and an image,
* because otherwise it is not really a compound button.
*/
if (butPtr->compound != COMPOUND_NONE && haveImage && haveText) {
switch ((enum compound) butPtr->compound) {
case COMPOUND_TOP:
case COMPOUND_BOTTOM:
/*
* Image is above or below text.
*/
height += txtHeight + padY;
width = (width > txtWidth ? width : txtWidth);
break;
case COMPOUND_LEFT:
case COMPOUND_RIGHT:
/*
* Image is left or right of text.
*/
width += txtWidth + padX;
height = (height > txtHeight ? height : txtHeight);
break;
case COMPOUND_CENTER:
/*
* Image and text are superimposed.
*/
width = (width > txtWidth ? width : txtWidth);
height = (height > txtHeight ? height : txtHeight);
break;
case COMPOUND_NONE:
break;
}
if (butPtrWidth > 0) {
width = butPtrWidth;
}
if (butPtrHeight > 0) {
height = butPtrHeight;
}
if ((butPtr->type >= TYPE_CHECK_BUTTON) && butPtr->indicatorOn) {
butPtr->indicatorSpace = height;
if (butPtr->type == TYPE_CHECK_BUTTON) {
butPtr->indicatorDiameter = (65*height)/100;
} else {
butPtr->indicatorDiameter = (75*height)/100;
}
}
width += 2 * padX;