/*
* tkWinButton.c --
*
* This file implements the Windows specific portion of the button
* widgets.
*
* Copyright © 1996-1998 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#define OEMRESOURCE
#include "tkWinInt.h"
#include "tkButton.h"
/*
* These macros define the base style flags for the different button types.
*/
#define LABEL_STYLE (BS_OWNERDRAW | WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS)
#define PUSH_STYLE (LABEL_STYLE | BS_PUSHBUTTON)
#define CHECK_STYLE (LABEL_STYLE | BS_CHECKBOX)
#define RADIO_STYLE (LABEL_STYLE | BS_RADIOBUTTON)
/*
* Declaration of Windows specific button structure.
*/
typedef struct WinButton {
TkButton info; /* Generic button info. */
WNDPROC oldProc; /* Old window procedure. */
HWND hwnd; /* Current window handle. */
Pixmap pixmap; /* Bitmap for rendering the button. */
DWORD style; /* Window style flags. */
} WinButton;
/*
* Cached information about the checkbutton and radiobutton indicator boxes
*/
typedef struct {
BOOLEAN initialized;
int boxSize; /* Width & height of the box. */
} ThreadSpecificData;
static Tcl_ThreadDataKey dataKey;
/*
* Data of the SVG images used for drawing the indicators
*/
static const char checkbtnOffData[] = "\
";
static const char checkbtnOnData[] = "\
";
static const char radiobtnOffData[] = "\
";
static const char radiobtnOnData[] = "\
";
/*
* Declarations for functions defined in this file.
*/
static LRESULT CALLBACK ButtonProc(HWND hwnd, UINT message,
WPARAM wParam, LPARAM lParam);
static Window CreateProc(Tk_Window tkwin, Window parent,
void *instanceData);
static void InitBoxes(Tk_Window tkwin);
static void ColorToStr(COLORREF color, char *colorStr);
static void ImageChanged(void *clientData,
int x, int y, int width, int height,
int imageWidth, int imageHeight);
static void TkpDrawIndicator(TkButton *butPtr, Drawable d,
Tk_3DBorder border, GC gc, int dim, int x, int y);
/*
* The class procedure table for the button widgets.
*/
const Tk_ClassProcs tkpButtonProcs = {
sizeof(Tk_ClassProcs), /* size */
TkButtonWorldChanged, /* worldChangedProc */
CreateProc, /* createProc */
NULL /* modalProc */
};
/*
*----------------------------------------------------------------------
*
* InitBoxes --
*
* This function computes the size of the checkbutton and radiobutton
* indicator boxes, according to the display's scaling percentage.
*
* Results:
* None.
*
* Side effects:
* Populates the thread-private data.
*
*----------------------------------------------------------------------
*/
static void
InitBoxes(Tk_Window tkwin)
{
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
double scalingLevel = TkScalingLevel(tkwin);
tsdPtr->boxSize = (int)(16.0 * scalingLevel);
tsdPtr->initialized = TRUE;
}
/*
*----------------------------------------------------------------------
*
* TkpButtonSetDefaults --
*
* This procedure is invoked before option tables are created for
* buttons. It modifies some of the default values to match the current
* values defined for this platform.
*
* Results:
* Some of the default values in *specPtr are modified.
*
* Side effects:
* Updates some of.
*
*----------------------------------------------------------------------
*/
void
TkpButtonSetDefaults(void)
{
int width = GetSystemMetrics(SM_CXEDGE);
if (width > 0) {
snprintf(tkDefButtonBorderWidth, sizeof(tkDefButtonBorderWidth), "%d", width);
}
}
/*
*----------------------------------------------------------------------
*
* 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))
{
WinButton *butPtr;
butPtr = (WinButton *)ckalloc(sizeof(WinButton));
butPtr->hwnd = NULL;
return (TkButton *) butPtr;
}
/*
*----------------------------------------------------------------------
*
* CreateProc --
*
* This function creates a new Button control, subclasses the instance,
* and generates a new Window object.
*
* Results:
* Returns the newly allocated Window object, or None on failure.
*
* Side effects:
* Causes a new Button control to come into existence.
*
*----------------------------------------------------------------------
*/
static Window
CreateProc(
Tk_Window tkwin, /* Token for window. */
Window parentWin, /* Parent of new window. */
void *instanceData) /* Button instance data. */
{
Window window;
HWND parent;
LPCWSTR windowClass;
WinButton *butPtr = (WinButton *)instanceData;
parent = Tk_GetHWND(parentWin);
if (butPtr->info.type == TYPE_LABEL) {
windowClass = L"STATIC";
butPtr->style = SS_OWNERDRAW | WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS;
} else {
windowClass = L"BUTTON";
butPtr->style = BS_OWNERDRAW | WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS;
}
butPtr->hwnd = CreateWindowW(windowClass, NULL, butPtr->style,
Tk_X(tkwin), Tk_Y(tkwin), Tk_Width(tkwin), Tk_Height(tkwin),
parent, NULL, Tk_GetHINSTANCE(), NULL);
SetWindowPos(butPtr->hwnd, HWND_TOP, 0, 0, 0, 0,
SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE);
butPtr->oldProc = (WNDPROC)SetWindowLongPtrW(butPtr->hwnd, GWLP_WNDPROC,
(LONG_PTR) ButtonProc);
window = Tk_AttachHWND(tkwin, butPtr->hwnd);
return window;
}
/*
*----------------------------------------------------------------------
*
* TkpDestroyButton --
*
* Free data structures associated with the button control.
*
* Results:
* None.
*
* Side effects:
* Restores the default control state.
*
*----------------------------------------------------------------------
*/
void
TkpDestroyButton(
TkButton *butPtr)
{
WinButton *winButPtr = (WinButton *)butPtr;
HWND hwnd = winButPtr->hwnd;
if (hwnd) {
SetWindowLongPtrW(hwnd, GWLP_WNDPROC, (LONG_PTR) winButPtr->oldProc);
}
}
/*
*----------------------------------------------------------------------
*
* ColorToStr --
*
* Writes a given color to a string, in the format "RRGGBB".
*
* Results:
* None.
*
* Side effects:
* Changes the content of the memory area pointed to by the 2nd argument.
*
*----------------------------------------------------------------------
*/
static void
ColorToStr(
COLORREF color, /* 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",
GetRValue(color), GetGValue(color), GetBValue(color));
}
/*
*----------------------------------------------------------------------
*
* ImageChanged --
*
* Dummy function to be passed to Tk_GetImage().
*
* Results:
* None.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
static void
ImageChanged(
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;
}
/*
*----------------------------------------------------------------------
*
* TkpDrawIndicator -
*
* Draws the indicator image in the drawable at the (x,y) location.
*
* Results:
* None.
*
* Side effects:
* An image is drawn in the drawable at the given location.
*
*----------------------------------------------------------------------
*/
static void
TkpDrawIndicator(
TkButton *butPtr, /* checkbutton or radiobutton */
Drawable d, /* what to draw on */
Tk_3DBorder border, /* colors of the border */
GC gc, /* graphics context */
int dim, /* width & height of the indicator */
int x, int y) /* where to draw */
{
Tk_Window tkwin = butPtr->tkwin;
char topOuterColorStr[7], btmOuterColorStr[7], topInnerColorStr[7],
btmInnerColorStr[7], interiorColorStr[7], checkColorStr[7];
Tcl_Interp *interp = Tk_Interp(tkwin);
char imgName[80];
Tk_Image img;
const char *svgDataPtr;
size_t svgDataLen;
char *svgDataCopy;
char *topOuterColorPtr, *btmOuterColorPtr, *topInnerColorPtr,
*btmInnerColorPtr, *interiorColorPtr, *checkColorPtr;
const char *cmdFmt;
size_t scriptSize;
char *script;
int code;
/*
* Construct the color strings topOuterColorStr, btmOuterColorStr,
* topInnerColorStr, btmInnerColorStr, interiorColorStr, and checkColorStr
*/
ColorToStr(TkWinGetBorderPixels(tkwin, border, TK_3D_DARK_GC),
topOuterColorStr);
ColorToStr(TkWinGetBorderPixels(tkwin, border, TK_3D_LIGHT_GC),
btmOuterColorStr);
ColorToStr(TkWinGetBorderPixels(tkwin, border, TK_3D_DARK2),
topInnerColorStr);
ColorToStr(TkWinGetBorderPixels(tkwin, border, TK_3D_LIGHT2),
btmInnerColorStr);
if (butPtr->state == STATE_ACTIVE) {
ColorToStr(TkWinGetBorderPixels(tkwin, butPtr->activeBorder,
TK_3D_FLAT_GC), interiorColorStr);
} else if (butPtr->state == STATE_DISABLED || (butPtr->flags & TRISTATED)) {
ColorToStr(TkWinGetBorderPixels(tkwin, border, TK_3D_LIGHT2),
interiorColorStr);
} else if (butPtr->selectBorder != NULL) {
ColorToStr(TkWinGetBorderPixels(tkwin, butPtr->selectBorder,
TK_3D_FLAT_GC), interiorColorStr);
} else {
ColorToStr(GetSysColor(COLOR_WINDOW), interiorColorStr);
}
if (butPtr->state == STATE_DISABLED && butPtr->disabledFg == NULL) {
ColorToStr(TkWinGetBorderPixels(tkwin, border, TK_3D_DARK_GC),
checkColorStr);
} else {
ColorToStr(gc->foreground, checkColorStr);
}
/*
* Check whether there is an SVG image of this size for the indicator's
* type (0 = checkbtn, 1 = radiobtn) and these color strings
*/
snprintf(imgName, sizeof(imgName),
"::tk::icons::indicator%d_%d_%s_%s_%s_%s_%s_%s",
dim, butPtr->type == TYPE_RADIO_BUTTON,
topOuterColorStr, btmOuterColorStr, topInnerColorStr,
btmInnerColorStr, interiorColorStr,
(butPtr->flags & (SELECTED|TRISTATED)) ? checkColorStr : "XXXXXX");
img = Tk_GetImage(interp, tkwin, imgName, ImageChanged, NULL);
if (img == NULL) {
/*
* Determine the SVG data to use for the photo image
*/
if (butPtr->type == TYPE_CHECK_BUTTON) {
svgDataPtr = ((butPtr->flags & (SELECTED|TRISTATED)) ?
checkbtnOnData : checkbtnOffData);
} else {
svgDataPtr = ((butPtr->flags & (SELECTED|TRISTATED)) ?
radiobtnOnData : radiobtnOffData);
}
/*
* 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
*/
topOuterColorPtr = strstr(svgDataCopy, "a0a0a0");
btmOuterColorPtr = strstr(svgDataCopy, "eeeeee");
topInnerColorPtr = strstr(svgDataCopy, "696969");
btmInnerColorPtr = strstr(svgDataCopy, "e3e3e3");
interiorColorPtr = strstr(svgDataCopy, "ffffff");
checkColorPtr = strstr(svgDataCopy, "000000");
assert(topOuterColorPtr);
assert(btmOuterColorPtr);
assert(topInnerColorPtr);
assert(btmInnerColorPtr);
assert(interiorColorPtr);
memcpy(topOuterColorPtr, topOuterColorStr, 6);
memcpy(btmOuterColorPtr, btmOuterColorStr, 6);
memcpy(topInnerColorPtr, topInnerColorStr, 6);
memcpy(btmInnerColorPtr, btmInnerColorStr, 6);
memcpy(interiorColorPtr, interiorColorStr, 6);
if (checkColorPtr != NULL) {
memcpy(checkColorPtr, checkColorStr, 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);
}
/*
* Display the image
*/
Tk_RedrawImage(img, 0, 0, dim, dim, d, x, y);
Tk_FreeImage(img);
}
/*
*----------------------------------------------------------------------
*
* TkpDisplayButton --
*
* This procedure is invoked to display a button widget. It is normally
* invoked as an idle handler.
*
* Results:
* None.
*
* Side effects:
* Information appears on the screen. The REDRAW_PENDING flag is cleared.
*
*----------------------------------------------------------------------
*/
void
TkpDisplayButton(
void *clientData) /* Information about widget. */
{
TkWinDCState state;
HDC dc;
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, haveImage = 0, haveText = 0, drawRing = 0;
RECT rect;
int defaultWidth; /* Width of default ring. */
int offset; /* 0 means this is a label widget. 1 means it
* is a flavor of button, so we offset the
* text to make the button appear to move up
* and down as the relief changes. */
int textXOffset = 0, textYOffset = 0;
/* Text offsets for use with compound buttons
* and focus ring. */
int imageWidth, imageHeight;
int imageXOffset = 0, imageYOffset = 0;
/* Image information that will be used to
* restrict disabled pixmap as well. */
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
butPtr->flags &= ~REDRAW_PENDING;
if ((butPtr->tkwin == NULL) || !Tk_IsMapped(tkwin)) {
return;
}
Tk_GetPixelsFromObj(NULL, tkwin, butPtr->borderWidthPtr, &butPtr->borderWidth);
Tk_GetPixelsFromObj(NULL, tkwin, butPtr->highlightWidthPtr, &butPtr->highlightWidth);
Tk_GetPixelsFromObj(NULL, tkwin, butPtr->padXPtr, &butPtr->padX);
Tk_GetPixelsFromObj(NULL, tkwin, butPtr->padYPtr, &butPtr->padY);
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->state != STATE_ACTIVE)
&& (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;
}
}
/*
* Compute width of default ring and offset for pushed buttons.
*/
if (butPtr->type == TYPE_LABEL) {
defaultWidth = butPtr->highlightWidth;
offset = 0;
} else if (butPtr->type == TYPE_BUTTON) {
defaultWidth = ((butPtr->defaultState == DEFAULT_ACTIVE)
? butPtr->highlightWidth : 0);
offset = 1;
} else {
defaultWidth = 0;
if ((butPtr->type >= TYPE_CHECK_BUTTON) && !butPtr->indicatorOn) {
offset = 1;
} else {
offset = 0;
}
}
/*
* In order to avoid screen flashes, this procedure 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-sreen 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;
haveText = (butPtr->textWidth != 0 && butPtr->textHeight != 0);
if (butPtr->compound != COMPOUND_NONE && haveImage && haveText) {
int 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 + butPtr->padY;
} else {
imageYOffset = butPtr->textHeight + butPtr->padY;
}
fullHeight = height + butPtr->textHeight + butPtr->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 + butPtr->padX;
} else {
imageXOffset = butPtr->textWidth + butPtr->padX;
}
fullWidth = butPtr->textWidth + butPtr->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, butPtr->padX, butPtr->padY,
butPtr->indicatorSpace + fullWidth, fullHeight, &x, &y);
x += butPtr->indicatorSpace;
if (relief == TK_RELIEF_SUNKEN) {
x += offset;
y += offset;
}
imageXOffset += x;
imageYOffset += y;
if (butPtr->image != NULL) {
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);
}
if ((butPtr->state == STATE_DISABLED) &&
(butPtr->disabledFg != NULL)) {
COLORREF oldFgColor = gc->foreground;
if (gc->background == GetSysColor(COLOR_BTNFACE)) {
gc->foreground = GetSysColor(COLOR_3DHILIGHT);
Tk_DrawTextLayout(butPtr->display, pixmap, gc,
butPtr->textLayout, x + textXOffset + 1,
y + textYOffset + 1, 0, -1);
Tk_UnderlineTextLayout(butPtr->display, pixmap, gc,
butPtr->textLayout, x + textXOffset + 1,
y + textYOffset + 1,
butPtr->underline);
gc->foreground = oldFgColor;
}
}
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);
height = fullHeight;
drawRing = 1;
} else {
if (haveImage) {
TkComputeAnchor(butPtr->anchor, tkwin, 0, 0,
butPtr->indicatorSpace + width, height, &x, &y);
x += butPtr->indicatorSpace;
if (relief == TK_RELIEF_SUNKEN) {
x += offset;
y += offset;
}
imageXOffset += x;
imageYOffset += y;
if (butPtr->image != NULL) {
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);
}
} else {
TkComputeAnchor(butPtr->anchor, tkwin, butPtr->padX, butPtr->padY,
butPtr->indicatorSpace + butPtr->textWidth,
butPtr->textHeight, &x, &y);
x += butPtr->indicatorSpace;
if (relief == TK_RELIEF_SUNKEN) {
x += offset;
y += offset;
}
if ((butPtr->state == STATE_DISABLED) &&
(butPtr->disabledFg != NULL)) {
COLORREF oldFgColor = gc->foreground;
if (gc->background == GetSysColor(COLOR_BTNFACE)) {
gc->foreground = GetSysColor(COLOR_3DHILIGHT);
Tk_DrawTextLayout(butPtr->display, pixmap, gc,
butPtr->textLayout,
x + 1, y + 1, 0, -1);
Tk_UnderlineTextLayout(butPtr->display, pixmap, gc,
butPtr->textLayout, x + 1, y + 1, butPtr->underline);
gc->foreground = oldFgColor;
}
}
Tk_DrawTextLayout(butPtr->display, pixmap, gc, butPtr->textLayout,
x, y, 0, -1);
Tk_UnderlineTextLayout(butPtr->display, pixmap, gc,
butPtr->textLayout, x, y, butPtr->underline);
height = butPtr->textHeight;
drawRing = 1;
}
}
/*
* Draw the focus ring. If this is a push button then we need to put it
* around the inner edge of the border, otherwise we put it around the
* text. The text offsets are only non-zero when this is a compound
* button.
*/
if (drawRing && butPtr->flags & GOT_FOCUS && butPtr->type != TYPE_LABEL) {
dc = TkWinGetDrawableDC(butPtr->display, pixmap, &state);
if (butPtr->type == TYPE_BUTTON || !butPtr->indicatorOn) {
rect.top = butPtr->borderWidth + 1 + defaultWidth;
rect.left = rect.top;
rect.right = Tk_Width(tkwin) - rect.left;
rect.bottom = Tk_Height(tkwin) - rect.top;
} else {
rect.top = y-1 + textYOffset;
rect.left = x-1 + textXOffset;
rect.right = x+butPtr->textWidth + 1 + textXOffset;
rect.bottom = y+butPtr->textHeight + 2 + textYOffset;
}
SetTextColor(dc, gc->foreground);
SetBkColor(dc, gc->background);
DrawFocusRect(dc, &rect);
TkWinReleaseDrawableDC(pixmap, dc, &state);
}
y += height/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->indicatorOn
&& tsdPtr->initialized) {
x -= butPtr->indicatorSpace;
y -= butPtr->indicatorDiameter / 2;
TkpDrawIndicator(butPtr, pixmap, border, gc, tsdPtr->boxSize, x, y + 1);
}
/*
* 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.
*/
if (relief != TK_RELIEF_FLAT) {
Tk_Draw3DRectangle(tkwin, pixmap, border,
defaultWidth, defaultWidth,
Tk_Width(tkwin) - 2 * defaultWidth,
Tk_Height(tkwin) - 2 * defaultWidth,
butPtr->borderWidth, relief);
}
if (defaultWidth != 0) {
int highlightColor;
dc = TkWinGetDrawableDC(butPtr->display, pixmap, &state);
if (butPtr->type == TYPE_LABEL) {
highlightColor = (int) Tk_3DBorderColor(butPtr->highlightBorder)->pixel;
} else {
highlightColor = (int) butPtr->highlightColorPtr->pixel;
}
TkWinFillRect(dc, 0, 0, Tk_Width(tkwin), defaultWidth,
highlightColor);
TkWinFillRect(dc, 0, 0, defaultWidth, Tk_Height(tkwin),
highlightColor);
TkWinFillRect(dc, 0, Tk_Height(tkwin) - defaultWidth,
Tk_Width(tkwin), defaultWidth,
highlightColor);
TkWinFillRect(dc, Tk_Width(tkwin) - defaultWidth, 0,
defaultWidth, Tk_Height(tkwin),
highlightColor);
TkWinReleaseDrawableDC(pixmap, dc, &state);
}
if (butPtr->flags & GOT_FOCUS) {
Tk_SetCaretPos(tkwin, x, y, 0 /* not used */);
}
/*
* 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 procedure 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 txtWidth, txtHeight; /* Width and height of text */
int imgWidth, imgHeight; /* Width and height of image */
int width = 0, height = 0; /* Width and height of button */
int haveImage, haveText;
int avgWidth;
int minWidth;
/* Vertical and horizontal dialog units size in pixels. */
double vDLU, hDLU;
Tk_FontMetrics fm;
ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
Tk_GetPixelsFromObj(NULL, butPtr->tkwin, butPtr->highlightWidthPtr, &butPtr->highlightWidth);
Tk_GetPixelsFromObj(NULL, butPtr->tkwin, butPtr->borderWidthPtr, &butPtr->borderWidth);
butPtr->inset = butPtr->highlightWidth + butPtr->borderWidth;
butPtr->indicatorSpace = 0;
if (!tsdPtr->initialized) {
InitBoxes(butPtr->tkwin);
}
/*
* Figure out image metrics.
*/
if (butPtr->image != NULL) {
Tk_SizeOfImage(butPtr->image, &imgWidth, &imgHeight);
haveImage = 1;
} else if (butPtr->bitmap != None) {
Tk_SizeOfBitmap(butPtr->display, butPtr->bitmap,
&imgWidth, &imgHeight);
haveImage = 1;
} else {
imgWidth = 0;
imgHeight = 0;
haveImage = 0;
}
/*
* Figure out font metrics (even if we don't have text because we need
* DLUs (based on font, not text) for some spacing calculations below).
*/
Tk_FreeTextLayout(butPtr->textLayout);
butPtr->textLayout = Tk_ComputeTextLayout(butPtr->tkfont,
Tcl_GetString(butPtr->textPtr), TCL_INDEX_NONE, butPtr->wrapLength,
butPtr->justify, 0, &butPtr->textWidth, &butPtr->textHeight);
txtWidth = butPtr->textWidth;
txtHeight = butPtr->textHeight;
haveText = (*(Tcl_GetString(butPtr->textPtr)) != '\0');
avgWidth = (Tk_TextWidth(butPtr->tkfont,
"abcdefghijklmnopqurstuvwzyABCDEFGHIJKLMNOPQURSTUVWZY",
52) + 26) / 52;
Tk_GetFontMetrics(butPtr->tkfont, &fm);
/*
* Compute dialog units for layout calculations.
*/
hDLU = avgWidth / 4.0;
vDLU = fm.linespace / 8.0;
/*
* First, let's try to compute button size "by the book" (See "Microsoft
* Windows User Experience" (ISBN 0-7356-0566-1), Chapter 14 - Visual
* Design, Section 4 - Layout (page 448)).
*
* Note, that Tk "buttons" are Microsoft "Command buttons", Tk
* "checkbuttons" are Microsoft "check boxes", Tk "radiobuttons" are
* Microsoft "option buttons", and Tk "labels" are Microsoft "text
* labels".
*/
/*
* Set width and height by button type; See User Experience table, p449.
* These are text-based measurements, even if the text is "". If there is
* an image, height will get set again later.
*/
switch (butPtr->type) {
case TYPE_BUTTON:
/*
* First compute the minimum width of the button in characters. MWUE
* says that the button should be 50 DLUs. We allow 6 DLUs padding
* left and right. (There is no rule but this is consistent with the
* fact that button text is 8 DLUs high and buttons are 14 DLUs high.)
*
* The width is specified in characters. A character is, by
* definition, 4 DLUs wide. 11 char * 4 DLU is 44 DLU + 6 DLU padding
* = 50 DLU. Therefore, width = -11 -> MWUE compliant buttons.
*/
if (butPtr->width < 0) {
minWidth = -(butPtr->width); /* Min width in chars */
width = avgWidth * minWidth; /* Allow for characters */
width += (int)(0.5 + (6 * hDLU)); /* Add for padding */
}
/*
* If shrink-wrapping was requested (width = 0) or if the text is
* wider than the default button width, adjust the button width up to
* suit.
*/
if (butPtr->width == 0
|| (txtWidth + (int)(0.5 + (6 * hDLU)) > width)) {
width = txtWidth + (int)(0.5 + (6 * hDLU));
}
/*
* The User Experience says 14 DLUs. Since text is, by definition, 8
* DLU/line, this allows for multi-line text while working perfectly
* for single-line text.
*/
height = txtHeight + (int)(0.5 + (6 * vDLU));
/*
* The above includes 6 DLUs of padding which should include defaults
* of 1 pixel of highlightwidth, 2 pixels of borderwidth, 1 pixel of
* padding and 1 pixel of extra inset on each side. Those will be
* added later so reduce width and height now to compensate.
*/
width -= 10;
height -= 10;
if (!haveImage) {
/*
* Extra inset for the focus ring.
*/
butPtr->inset += 1;
}
break;
case TYPE_LABEL:
/*
* The User Experience says, "as wide as needed".
*/
width = txtWidth;
/*
* The User Experience says, "8 (DLUs) per line of text". Since text
* is, by definition, 8 DLU/line, this allows for multi-line text
* while working perfectly for single-line text.
*/
if (txtHeight) {
height = txtHeight;
} else {
/*
* If there's no text, we want the height to be one linespace.
*/
height = fm.linespace;
}
break;
case TYPE_RADIO_BUTTON:
case TYPE_CHECK_BUTTON: {
/*
* See note for TYPE_LABEL.
*/
width = txtWidth;
/*
* The User Experience says 10 DLUs. (Is that one DLU above and below
* for the focus ring?) See note above about multi-line text and 8
* DLU/line.
*/
height = txtHeight + (int)(0.5 + (2.0 * vDLU));
/*
* The above includes 2 DLUs of padding which should include defaults
* of 1 pixel of highlightwidth, 0 pixels of borderwidth, and 1 pixel
* of padding on each side. Those will be added later so reduce height
* now to compensate.
*/
height -= 4;
/*
* Extra inset for the focus ring.
*/
butPtr->inset += 1;
break;
}
}/* switch */
/*
* At this point, the width and height are correct for a Tk text button,
* excluding padding and inset, but we have to allow for compound buttons.
* The image may be above, below, left, or right of the text.
*/
/*
* 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.
*/
Tk_GetPixelsFromObj(NULL, butPtr->tkwin, butPtr->padXPtr, &butPtr->padX);
Tk_GetPixelsFromObj(NULL, butPtr->tkwin, butPtr->padYPtr, &butPtr->padY);
if (butPtr->compound != COMPOUND_NONE && haveImage && haveText) {
switch ((enum compound) butPtr->compound) {
case COMPOUND_TOP:
case COMPOUND_BOTTOM:
/*
* Image is above or below text.
*/
if (imgWidth > width) {
width = imgWidth;
}
height += imgHeight + butPtr->padY;
break;
case COMPOUND_LEFT:
case COMPOUND_RIGHT:
/*
* Image is left or right of text.
*
* Only increase width of button if image doesn't fit in slack
* space of default button width
*/
if ((imgWidth + txtWidth + butPtr->padX) > width) {
width = imgWidth + txtWidth + butPtr->padX;
}
if (imgHeight > height) {
height = imgHeight;
}
break;
case COMPOUND_CENTER:
/*
* Image and text are superimposed.
*/
if (imgWidth > width) {
width = imgWidth;
}
if (imgHeight > height) {
height = imgHeight;
}
break;
case COMPOUND_NONE:
break;
} /* switch */
/*
* Fix up for minimum width.
*/
if (butPtr->width < 0) {
/*
* minWidth in pixels (because there's an image.
*/
minWidth = -(butPtr->width);
if (width < minWidth) {
width = minWidth;
}
} else if (butPtr->width > 0) {
width = butPtr->width;
}
if (butPtr->height > 0) {
height = butPtr->height;
}
width += 2 * butPtr->padX;
height += 2 * butPtr->padY;
} else if (haveImage) {
if (butPtr->width > 0) {
width = butPtr->width;
} else {
width = imgWidth;
}
if (butPtr->height > 0) {
height = butPtr->height;
} else {
height = imgHeight;
}
} else {
/*
* No image. May or may not be text. May or may not be compound.
*/
/*
* butPtr->width is in characters. We need to allow for that many
* characters on the face, not in the over-all button width
*/
if (butPtr->width > 0) {
width = butPtr->width * avgWidth;
}
/*
* butPtr->height is in lines of text. We need to allow for that many
* lines on the face, not in the over-all button height.
*/
if (butPtr->height > 0) {
height = butPtr->height * fm.linespace;
/*
* Make the same adjustments as above to get same height for e.g.
* a one line text with -height 0 or 1. [Bug #565485]
*/
switch (butPtr->type) {
case TYPE_BUTTON: {
height += (int)(0.5 + (6 * vDLU)) - 10;
break;
}
case TYPE_RADIO_BUTTON:
case TYPE_CHECK_BUTTON: {
height += (int)(0.5 + (2.0 * vDLU)) - 4;
break;
}
}
}
width += 2 * butPtr->padX;
height += 2 * butPtr->padY;
}
/*
* Fix up width and height for indicator sizing and spacing.
*/
if (butPtr->type == TYPE_RADIO_BUTTON
|| butPtr->type == TYPE_CHECK_BUTTON) {
if (butPtr->indicatorOn) {
butPtr->indicatorDiameter = tsdPtr->boxSize;
/*
* Make sure we can see the whole indicator, even if the text or
* image is very small.
*/
if (height < butPtr->indicatorDiameter) {
height = butPtr->indicatorDiameter;
}
/*
* There is no rule for space between the indicator and the text
* (the two are atomic on 'Windows) but the User Experience page
* 451 says leave 3 hDLUs between "text labels and their
* associated controls".
*/
butPtr->indicatorSpace = butPtr->indicatorDiameter +
(int)(0.5 + (3.0 * hDLU));
width += butPtr->indicatorSpace;
}
}
/*
* Inset is always added to the size.
*/
width += 2 * butPtr->inset;
height += 2 * butPtr->inset;
Tk_GeometryRequest(butPtr->tkwin, width, height);
Tk_SetInternalBorder(butPtr->tkwin, butPtr->inset);
}
/*
*----------------------------------------------------------------------
*
* ButtonProc --
*
* This function is called by Windows whenever an event occurs on a
* button control created by Tk.
*
* Results:
* Standard Windows return value.
*
* Side effects:
* May generate events.
*
*----------------------------------------------------------------------
*/
static LRESULT CALLBACK
ButtonProc(
HWND hwnd,
UINT message,
WPARAM wParam,
LPARAM lParam)
{
LRESULT result;
WinButton *butPtr;
Tk_Window tkwin = Tk_HWNDToWindow(hwnd);
if (tkwin == NULL) {
Tcl_Panic("ButtonProc called on an invalid HWND");
}
butPtr = (WinButton *)((TkWindow*)tkwin)->instanceData;
switch(message) {
case WM_ERASEBKGND:
return 0;
case BM_GETCHECK:
if (((butPtr->info.type == TYPE_CHECK_BUTTON)
|| (butPtr->info.type == TYPE_RADIO_BUTTON))
&& butPtr->info.indicatorOn) {
return (butPtr->info.flags & SELECTED)
? BST_CHECKED : BST_UNCHECKED;
}
return 0;
case BM_GETSTATE: {
DWORD state = 0;
if (((butPtr->info.type == TYPE_CHECK_BUTTON)
|| (butPtr->info.type == TYPE_RADIO_BUTTON))
&& butPtr->info.indicatorOn) {
state = (butPtr->info.flags & SELECTED)
? BST_CHECKED : BST_UNCHECKED;
}
if (butPtr->info.flags & GOT_FOCUS) {
state |= BST_FOCUS;
}
return state;
}
case WM_ENABLE:
break;
case WM_PAINT: {
PAINTSTRUCT ps;
BeginPaint(hwnd, &ps);
EndPaint(hwnd, &ps);
TkpDisplayButton(butPtr);
/*
* Special note: must cancel any existing idle handler for
* TkpDisplayButton; it's no longer needed, and TkpDisplayButton
* cleared the REDRAW_PENDING flag.
*/
Tcl_CancelIdleCall(TkpDisplayButton, butPtr);
return 0;
}
case BN_CLICKED: {
/*
* OOPS: chromium fires WM_NULL regularly to ping if plugin is still
* alive. When using an external window (i.e. via the tcl plugin), this
* causes all buttons to fire once a second, so we need to make sure
* that we are not dealing with the chromium life check.
*/
if (wParam != 0 || lParam != 0) {
int code;
Tcl_Interp *interp = butPtr->info.interp;
if (butPtr->info.state != STATE_DISABLED) {
Tcl_Preserve(interp);
code = TkInvokeButton((TkButton*)butPtr);
if (code != TCL_OK && code != TCL_CONTINUE
&& code != TCL_BREAK) {
Tcl_AddErrorInfo(interp, "\n (button invoke)");
Tcl_BackgroundException(interp, code);
}
Tcl_Release(interp);
}
Tcl_ServiceAll();
return 0;
}
}
/* FALLTHRU */
default:
if (TkTranslateWinEvent(hwnd, message, wParam, lParam, &result)) {
return result;
}
}
return DefWindowProcW(hwnd, message, wParam, lParam);
}
/*
* Local Variables:
* mode: c
* c-basic-offset: 4
* fill-column: 78
* End:
*/