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tkUnixMenu.c
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1925 lines (1753 loc) · 52.8 KB
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/*
* tkUnixMenu.c --
*
* This module implements the UNIX platform-specific features of menus.
*
* 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.
*/
#include "tkUnixInt.h"
#include "tkMenu.h"
/*
* Constants used for menu drawing.
*/
#define MENU_MARGIN_WIDTH 2
#define MENU_DIVIDER_HEIGHT 2
/*
* Platform specific flags for Unix.
*/
#define ENTRY_HELP_MENU ENTRY_PLATFORM_FLAG1
/*
* Shared with button 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);
/*
* Indicator Draw Modes
*/
#define CHECK_BUTTON 0
#define CHECK_MENU 1
#define RADIO_BUTTON 2
#define RADIO_MENU 3
/*
* Procedures used internally.
*/
static void SetHelpMenu(TkMenu *menuPtr);
static void DrawMenuEntryAccelerator(TkMenu *menuPtr,
TkMenuEntry *mePtr, Drawable d, GC gc,
Tk_Font tkfont, const Tk_FontMetrics *fmPtr,
Tk_3DBorder activeBorder, Tk_3DBorder bgBorder,
int x, int y, int width, int height, int drawArrow);
static void DrawMenuEntryBackground(TkMenu *menuPtr,
TkMenuEntry *mePtr, Drawable d,
Tk_3DBorder activeBorder, Tk_3DBorder bgBorder,
int x, int y, int width, int heigth);
static void DrawMenuEntryIndicator(TkMenu *menuPtr,
TkMenuEntry *mePtr, Drawable d,
Tk_3DBorder border, XColor *indicatorColor,
XColor *disableColor, Tk_Font tkfont,
const Tk_FontMetrics *fmPtr, int x, int y,
int width, int height);
static void DrawMenuEntryLabel(TkMenu * menuPtr,
TkMenuEntry *mePtr, Drawable d, GC gc,
Tk_Font tkfont, const Tk_FontMetrics *fmPtr,
int x, int y, int width, int height);
static void DrawMenuSeparator(TkMenu *menuPtr,
TkMenuEntry *mePtr, Drawable d, GC gc,
Tk_Font tkfont, const Tk_FontMetrics *fmPtr,
int x, int y, int width, int height);
static void DrawTearoffEntry(TkMenu *menuPtr,
TkMenuEntry *mePtr, Drawable d, GC gc,
Tk_Font tkfont, const Tk_FontMetrics *fmPtr,
int x, int y, int width, int height);
static void DrawMenuUnderline(TkMenu *menuPtr,
TkMenuEntry *mePtr, Drawable d, GC gc,
Tk_Font tkfont, const Tk_FontMetrics *fmPtr,
int x, int y, int width, int height);
static void GetMenuAccelGeometry(TkMenu *menuPtr,
TkMenuEntry *mePtr, Tk_Font tkfont,
const Tk_FontMetrics *fmPtr, int *widthPtr,
int *heightPtr);
static void GetMenuLabelGeometry(TkMenuEntry *mePtr,
Tk_Font tkfont, const Tk_FontMetrics *fmPtr,
int *widthPtr, int *heightPtr);
static void GetMenuIndicatorGeometry(TkMenu *menuPtr,
TkMenuEntry *mePtr, Tk_Font tkfont,
const Tk_FontMetrics *fmPtr,
int *widthPtr, int *heightPtr);
static void GetMenuSeparatorGeometry(TkMenu *menuPtr,
TkMenuEntry *mePtr, Tk_Font tkfont,
const Tk_FontMetrics *fmPtr,
int *widthPtr, int *heightPtr);
static void GetTearoffEntryGeometry(TkMenu *menuPtr,
TkMenuEntry *mePtr, Tk_Font tkfont,
const Tk_FontMetrics *fmPtr, int *widthPtr,
int *heightPtr);
/*
*----------------------------------------------------------------------
*
* TkpNewMenu --
*
* Gets the platform-specific piece of the menu. Invoked during idle
* after the generic part of the menu has been created.
*
* Results:
* Standard TCL error.
*
* Side effects:
* Allocates any platform specific allocations and places them in the
* platformData field of the menuPtr.
*
*----------------------------------------------------------------------
*/
int
TkpNewMenu(
TkMenu *menuPtr)
{
SetHelpMenu(menuPtr);
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TkpDestroyMenu --
*
* Destroys platform-specific menu structures. Called when the generic
* menu structure is destroyed for the menu.
*
* Results:
* None.
*
* Side effects:
* All platform-specific allocations are freed up.
*
*----------------------------------------------------------------------
*/
void
TkpDestroyMenu(
TCL_UNUSED(TkMenu *))
{
/*
* Nothing to do.
*/
}
/*
*----------------------------------------------------------------------
*
* TkpDestroyMenuEntry --
*
* Cleans up platform-specific menu entry items. Called when entry is
* destroyed in the generic code.
*
* Results:
* None.
*
* Side effects:
* All platform specific allocations are freed up.
*
*----------------------------------------------------------------------
*/
void
TkpDestroyMenuEntry(
TCL_UNUSED(TkMenuEntry *))
{
/*
* Nothing to do.
*/
}
/*
*----------------------------------------------------------------------
*
* TkpConfigureMenuEntry --
*
* Processes configuration options for menu entries. Called when the
* generic options are processed for the menu.
*
* Results:
* Returns standard TCL result. If TCL_ERROR is returned, then the
* interp's result contains an error message.
*
* Side effects:
* Configuration information get set for mePtr; old resources get freed,
* if any need it.
*
*----------------------------------------------------------------------
*/
int
TkpConfigureMenuEntry(
TkMenuEntry *mePtr)/* Information about menu entry; may or may
* not already have values for some fields. */
{
/*
* If this is a cascade menu, and the child menu exists, check to see if
* the child menu is a help menu.
*/
if ((mePtr->type == CASCADE_ENTRY) && (mePtr->namePtr != NULL)) {
TkMenuReferences *menuRefPtr;
menuRefPtr = TkFindMenuReferencesObj(mePtr->menuPtr->interp,
mePtr->namePtr);
if ((menuRefPtr != NULL) && (menuRefPtr->menuPtr != NULL)) {
SetHelpMenu(menuRefPtr->menuPtr);
}
}
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TkpMenuNewEntry --
*
* Called when a new entry is created in a menu. Fills in platform
* specific data for the entry. The platformEntryData field is used to
* store the indicator diameter for radio button and check box entries.
*
* Results:
* Standard TCL error.
*
* Side effects:
* None on Unix.
*
*----------------------------------------------------------------------
*/
int
TkpMenuNewEntry(
TCL_UNUSED(TkMenuEntry *))
{
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TkpSetWindowMenuBar --
*
* Sets up the menu as a menubar in the given window.
*
* Results:
* None.
*
* Side effects:
* Recomputes geometry of given window.
*
*----------------------------------------------------------------------
*/
void
TkpSetWindowMenuBar(
Tk_Window tkwin, /* The window we are setting */
TkMenu *menuPtr) /* The menu we are setting */
{
if (menuPtr == NULL) {
TkUnixSetMenubar(tkwin, NULL);
} else {
TkUnixSetMenubar(tkwin, menuPtr->tkwin);
}
}
/*
*----------------------------------------------------------------------
*
* TkpSetMainMenuBar --
*
* Called when a toplevel widget is brought to front. On the Macintosh,
* sets up the menubar that goes accross the top of the main monitor. On
* other platforms, nothing is necessary.
*
* Results:
* None.
*
* Side effects:
* Recompute geometry of given window.
*
*----------------------------------------------------------------------
*/
void
Tk_SetMainMenubar(
TCL_UNUSED(Tcl_Interp *),
TCL_UNUSED(Tk_Window),
TCL_UNUSED(const char *))
{
/*
* Nothing to do.
*/
}
/*
*----------------------------------------------------------------------
*
* GetMenuIndicatorGeometry --
*
* Fills out the geometry of the indicator in a menu item. Note that the
* mePtr->height field must have already been filled in by
* GetMenuLabelGeometry since this height depends on the label height.
*
* Results:
* widthPtr and heightPtr point to the new geometry values.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
static void
GetMenuIndicatorGeometry(
TkMenu *menuPtr, /* The menu we are drawing. */
TkMenuEntry *mePtr, /* The entry we are interested in. */
TCL_UNUSED(Tk_Font), /* The precalculated font */
TCL_UNUSED(const Tk_FontMetrics *), /* The precalculated metrics */
int *widthPtr, /* The resulting width */
int *heightPtr) /* The resulting height */
{
int borderWidth;
if ((mePtr->type == CHECK_BUTTON_ENTRY)
|| (mePtr->type == RADIO_BUTTON_ENTRY)) {
if (!mePtr->hideMargin && mePtr->indicatorOn) {
if ((mePtr->image != NULL) || (mePtr->bitmapPtr != NULL)) {
*widthPtr = (14 * mePtr->height) / 10;
*heightPtr = mePtr->height;
if (mePtr->type == CHECK_BUTTON_ENTRY) {
mePtr->platformEntryData = (TkMenuPlatformEntryData)
INT2PTR((65 * mePtr->height) / 100);
} else {
mePtr->platformEntryData = (TkMenuPlatformEntryData)
INT2PTR((75 * mePtr->height) / 100);
}
} else {
*widthPtr = *heightPtr = mePtr->height;
if (mePtr->type == CHECK_BUTTON_ENTRY) {
mePtr->platformEntryData = (TkMenuPlatformEntryData)
INT2PTR((80 * mePtr->height) / 100);
} else {
mePtr->platformEntryData = (TkMenuPlatformEntryData)
INT2PTR(mePtr->height);
}
}
} else {
Tk_GetPixelsFromObj(NULL, menuPtr->tkwin, menuPtr->borderWidthObj,
&borderWidth);
*heightPtr = 0;
*widthPtr = borderWidth;
}
} else {
Tk_GetPixelsFromObj(NULL, menuPtr->tkwin, menuPtr->borderWidthObj,
&borderWidth);
*heightPtr = 0;
*widthPtr = borderWidth;
}
}
/*
*----------------------------------------------------------------------
*
* GetMenuAccelGeometry --
*
* Get the geometry of the accelerator area of a menu item.
*
* Results:
* heightPtr and widthPtr are set.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
static void
GetMenuAccelGeometry(
TkMenu *menuPtr, /* The menu was are drawing */
TkMenuEntry *mePtr, /* The entry we are getting the geometry for */
Tk_Font tkfont, /* The precalculated font */
const Tk_FontMetrics *fmPtr,/* The precalculated font metrics */
int *widthPtr, /* The width of the acclerator area */
int *heightPtr) /* The height of the accelerator area */
{
double scalingLevel = TkScalingLevel(menuPtr->tkwin);
*heightPtr = fmPtr->linespace;
if (mePtr->type == CASCADE_ENTRY) {
*widthPtr = 2 * CASCADE_ARROW_WIDTH * scalingLevel;
} else if ((menuPtr->menuType != MENUBAR) && (mePtr->accelPtr != NULL)) {
const char *accel = Tcl_GetString(mePtr->accelPtr);
*widthPtr = Tk_TextWidth(tkfont, accel, mePtr->accelLength);
} else {
*widthPtr = 0;
}
}
/*
*----------------------------------------------------------------------
*
* DrawMenuEntryBackground --
*
* This procedure draws the background part of a menu.
*
* Results:
* None.
*
* Side effects:
* Commands are output to X to display the menu in its current mode.
*
*----------------------------------------------------------------------
*/
static void
DrawMenuEntryBackground(
TkMenu *menuPtr, /* The menu we are drawing */
TkMenuEntry *mePtr, /* The entry we are drawing. */
Drawable d, /* The drawable we are drawing into */
Tk_3DBorder activeBorder, /* The border for an active item */
Tk_3DBorder bgBorder, /* The background border */
int x, /* Left coordinate of entry rect */
int y, /* Right coordinate of entry rect */
int width, /* Width of entry rect */
int height) /* Height of entry rect */
{
if (mePtr->state == ENTRY_ACTIVE) {
int relief;
int activeBorderWidth;
bgBorder = activeBorder;
if ((menuPtr->menuType == MENUBAR)
&& ((menuPtr->postedCascade == NULL)
|| (menuPtr->postedCascade != mePtr))) {
relief = TK_RELIEF_FLAT;
} else {
relief = menuPtr->activeRelief;
}
Tk_GetPixelsFromObj(NULL, menuPtr->tkwin,
menuPtr->activeBorderWidthPtr, &activeBorderWidth);
Tk_Fill3DRectangle(menuPtr->tkwin, d, bgBorder, x, y, width, height,
activeBorderWidth, relief);
} else {
Tk_Fill3DRectangle(menuPtr->tkwin, d, bgBorder, x, y, width, height,
0, TK_RELIEF_FLAT);
}
}
/*
*----------------------------------------------------------------------
*
* DrawMenuEntryAccelerator --
*
* This procedure draws the background part of a menu.
*
* Results:
* None.
*
* Side effects:
* Commands are output to X to display the menu in its current mode.
*
*----------------------------------------------------------------------
*/
static void
DrawMenuEntryAccelerator(
TkMenu *menuPtr, /* The menu we are drawing */
TkMenuEntry *mePtr, /* The entry we are drawing */
Drawable d, /* The drawable we are drawing into */
GC gc, /* The precalculated gc to draw with */
Tk_Font tkfont, /* The precalculated font */
const Tk_FontMetrics *fmPtr,/* The precalculated metrics */
Tk_3DBorder activeBorder, /* The border for an active item */
Tk_3DBorder bgBorder, /* The background border */
int x, /* Left coordinate of entry rect */
int y, /* Top coordinate of entry rect */
int width, /* Width of entry */
int height, /* Height of entry */
int drawArrow) /* Whether or not to draw arrow. */
{
XPoint points[3];
int borderWidth, activeBorderWidth;
int arrowWidth = CASCADE_ARROW_WIDTH, arrowHeight = CASCADE_ARROW_HEIGHT;
double scalingLevel = TkScalingLevel(menuPtr->tkwin);
/*
* Draw accelerator or cascade arrow.
*/
if (menuPtr->menuType == MENUBAR) {
return;
}
Tk_GetPixelsFromObj(NULL, menuPtr->tkwin, menuPtr->borderWidthObj,
&borderWidth);
Tk_GetPixelsFromObj(NULL, menuPtr->tkwin, menuPtr->activeBorderWidthPtr,
&activeBorderWidth);
if ((mePtr->type == CASCADE_ENTRY) && drawArrow) {
arrowWidth *= scalingLevel;
arrowHeight *= scalingLevel;
points[0].x = x + width - borderWidth - activeBorderWidth - arrowWidth;
points[0].y = y + (height - arrowHeight)/2;
points[1].x = points[0].x;
points[1].y = points[0].y + arrowHeight;
points[2].x = points[0].x + arrowWidth;
points[2].y = points[0].y + arrowHeight/2;
Tk_Fill3DPolygon(menuPtr->tkwin, d,
(mePtr->state == ENTRY_ACTIVE) ? activeBorder : bgBorder,
points, 3, DECORATION_BORDER_WIDTH,
(menuPtr->postedCascade == mePtr) ?
TK_RELIEF_SUNKEN : TK_RELIEF_RAISED);
} else if (mePtr->accelPtr != NULL) {
const char *accel = Tcl_GetString(mePtr->accelPtr);
int left = x + mePtr->labelWidth + activeBorderWidth
+ mePtr->indicatorSpace;
if (menuPtr->menuType == MENUBAR) {
left += 5;
}
Tk_DrawChars(menuPtr->display, d, gc, tkfont, accel,
mePtr->accelLength, left,
(y + (height + fmPtr->ascent - fmPtr->descent) / 2));
}
}
/*
*----------------------------------------------------------------------
*
* DrawMenuEntryIndicator --
*
* This procedure draws the background part of a menu.
*
* Results:
* None.
*
* Side effects:
* Commands are output to X to display the menu in its current mode.
*
*----------------------------------------------------------------------
*/
static void
DrawMenuEntryIndicator(
TkMenu *menuPtr, /* The menu we are drawing */
TkMenuEntry *mePtr, /* The entry we are drawing */
Drawable d, /* The drawable to draw into */
Tk_3DBorder border, /* The background color */
XColor *indicatorColor, /* The color to draw indicators with */
XColor *disableColor, /* The color use use when disabled */
TCL_UNUSED(Tk_Font), /* The font to draw with */
TCL_UNUSED(const Tk_FontMetrics *), /* The font metrics of the font */
int x, /* The left of the entry rect */
int y, /* The top of the entry rect */
TCL_UNUSED(int), /* Width of menu entry */
int height) /* Height of menu entry */
{
/*
* Draw check-button indicator.
*/
if ((mePtr->type == CHECK_BUTTON_ENTRY) && mePtr->indicatorOn) {
int top, left, activeBorderWidth;
int disabled = (mePtr->state == ENTRY_DISABLED);
XColor *bg;
Tk_GetPixelsFromObj(NULL, menuPtr->tkwin,
menuPtr->activeBorderWidthPtr, &activeBorderWidth);
bg = Tk_3DBorderColor(border);
top = y + height/2;
left = x + activeBorderWidth + DECORATION_BORDER_WIDTH
+ mePtr->indicatorSpace/2;
TkpDrawCheckIndicator(menuPtr->tkwin, menuPtr->display, d, left, top,
border, indicatorColor, bg, disableColor,
(mePtr->entryFlags & ENTRY_SELECTED), disabled, CHECK_MENU);
}
/*
* Draw radio-button indicator.
*/
if ((mePtr->type == RADIO_BUTTON_ENTRY) && mePtr->indicatorOn) {
int top, left, activeBorderWidth;
int disabled = (mePtr->state == ENTRY_DISABLED);
XColor *bg;
Tk_GetPixelsFromObj(NULL, menuPtr->tkwin,
menuPtr->activeBorderWidthPtr, &activeBorderWidth);
bg = Tk_3DBorderColor(border);
top = y + height/2;
left = x + activeBorderWidth + DECORATION_BORDER_WIDTH
+ mePtr->indicatorSpace/2;
TkpDrawCheckIndicator(menuPtr->tkwin, menuPtr->display, d, left, top,
border, indicatorColor, bg, disableColor,
(mePtr->entryFlags & ENTRY_SELECTED), disabled, RADIO_MENU);
}
}
/*
*----------------------------------------------------------------------
*
* DrawMenuSeparator --
*
* This procedure draws a separator menu item.
*
* Results:
* None.
*
* Side effects:
* Commands are output to X to display the menu in its current mode.
*
*----------------------------------------------------------------------
*/
static void
DrawMenuSeparator(
TkMenu *menuPtr, /* The menu we are drawing */
TCL_UNUSED(TkMenuEntry *), /* The entry we are drawing */
Drawable d, /* The drawable we are using */
TCL_UNUSED(GC), /* The gc to draw into */
TCL_UNUSED(Tk_Font), /* The font to draw with */
TCL_UNUSED(const Tk_FontMetrics *), /* The font metrics from the font */
int x, int y,
int width, int height)
{
XPoint points[2];
Tk_3DBorder border;
if (menuPtr->menuType == MENUBAR) {
return;
}
points[0].x = x;
points[0].y = y + height/2;
points[1].x = x + width - 1;
points[1].y = points[0].y;
border = Tk_Get3DBorderFromObj(menuPtr->tkwin, menuPtr->borderPtr);
Tk_Draw3DPolygon(menuPtr->tkwin, d, border, points, 2, 1,
TK_RELIEF_RAISED);
}
/*
*----------------------------------------------------------------------
*
* DrawMenuEntryLabel --
*
* This procedure draws the label part of a menu.
*
* Results:
* None.
*
* Side effects:
* Commands are output to X to display the menu in its current mode.
*
*----------------------------------------------------------------------
*/
static void
DrawMenuEntryLabel(
TkMenu *menuPtr, /* The menu we are drawing. */
TkMenuEntry *mePtr, /* The entry we are drawing. */
Drawable d, /* What we are drawing into. */
GC gc, /* The gc we are drawing into.*/
Tk_Font tkfont, /* The precalculated font. */
const Tk_FontMetrics *fmPtr,/* The precalculated font metrics. */
int x, /* Left edge. */
int y, /* Top edge. */
int width, /* width of entry. */
int height) /* height of entry. */
{
int indicatorSpace = mePtr->indicatorSpace;
int activeBorderWidth, leftEdge, imageHeight, imageWidth;
int textHeight = 0, textWidth = 0; /* stop GCC warning */
int haveImage = 0, haveText = 0;
int imageXOffset = 0, imageYOffset = 0;
int textXOffset = 0, textYOffset = 0;
Tk_GetPixelsFromObj(NULL, menuPtr->tkwin, menuPtr->activeBorderWidthPtr,
&activeBorderWidth);
leftEdge = x + indicatorSpace + activeBorderWidth;
if (menuPtr->menuType == MENUBAR) {
leftEdge += 5;
}
/*
* Work out what we will need to draw first.
*/
if (mePtr->image != NULL) {
Tk_SizeOfImage(mePtr->image, &imageWidth, &imageHeight);
haveImage = 1;
} else if (mePtr->bitmapPtr != NULL) {
Pixmap bitmap = Tk_GetBitmapFromObj(menuPtr->tkwin, mePtr->bitmapPtr);
Tk_SizeOfBitmap(menuPtr->display, bitmap, &imageWidth, &imageHeight);
haveImage = 1;
}
if (!haveImage || (mePtr->compound != COMPOUND_NONE)) {
if (mePtr->labelLength > 0) {
const char *label = Tcl_GetString(mePtr->labelPtr);
textWidth = Tk_TextWidth(tkfont, label, mePtr->labelLength);
textHeight = fmPtr->linespace;
haveText = 1;
}
}
/*
* Now work out what the relative positions are.
*/
if (haveImage && haveText) {
int fullWidth = (imageWidth > textWidth ? imageWidth : textWidth);
switch ((enum compound) mePtr->compound) {
case COMPOUND_TOP:
textXOffset = (fullWidth - textWidth)/2;
textYOffset = imageHeight/2 + 2;
imageXOffset = (fullWidth - imageWidth)/2;
imageYOffset = -textHeight/2;
break;
case COMPOUND_BOTTOM:
textXOffset = (fullWidth - textWidth)/2;
textYOffset = -imageHeight/2;
imageXOffset = (fullWidth - imageWidth)/2;
imageYOffset = textHeight/2 + 2;
break;
case COMPOUND_LEFT:
/*
* Position image in the indicator space to the left of the
* entries, unless this entry is a radio|check button because then
* the indicator space will be used.
*/
textXOffset = imageWidth + 2;
textYOffset = 0;
imageXOffset = 0;
imageYOffset = 0;
if ((mePtr->type != CHECK_BUTTON_ENTRY)
&& (mePtr->type != RADIO_BUTTON_ENTRY)) {
textXOffset -= indicatorSpace;
if (textXOffset < 0) {
textXOffset = 0;
}
imageXOffset = -indicatorSpace;
}
break;
case COMPOUND_RIGHT:
textXOffset = 0;
textYOffset = 0;
imageXOffset = textWidth + 2;
imageYOffset = 0;
break;
case COMPOUND_CENTER:
textXOffset = (fullWidth - textWidth)/2;
textYOffset = 0;
imageXOffset = (fullWidth - imageWidth)/2;
imageYOffset = 0;
break;
case COMPOUND_NONE:
break;
}
} else {
textXOffset = 0;
textYOffset = 0;
imageXOffset = 0;
imageYOffset = 0;
}
/*
* Draw label and/or bitmap or image for entry.
*/
if (mePtr->image != NULL) {
if ((mePtr->selectImage != NULL)
&& (mePtr->entryFlags & ENTRY_SELECTED)) {
Tk_RedrawImage(mePtr->selectImage, 0, 0,
imageWidth, imageHeight, d, leftEdge + imageXOffset,
(int) (y + (mePtr->height-imageHeight)/2 + imageYOffset));
} else {
Tk_RedrawImage(mePtr->image, 0, 0, imageWidth,
imageHeight, d, leftEdge + imageXOffset,
(int) (y + (mePtr->height-imageHeight)/2 + imageYOffset));
}
} else if (mePtr->bitmapPtr != NULL) {
Pixmap bitmap = Tk_GetBitmapFromObj(menuPtr->tkwin, mePtr->bitmapPtr);
XCopyPlane(menuPtr->display, bitmap, d, gc, 0, 0,
(unsigned) imageWidth, (unsigned) imageHeight,
leftEdge + imageXOffset,
(int) (y + (mePtr->height - imageHeight)/2 + imageYOffset), 1);
}
if ((mePtr->compound != COMPOUND_NONE) || !haveImage) {
int baseline = y + (height + fmPtr->ascent - fmPtr->descent) / 2;
if (mePtr->labelLength > 0) {
const char *label = Tcl_GetString(mePtr->labelPtr);
Tk_DrawChars(menuPtr->display, d, gc, tkfont, label,
mePtr->labelLength, leftEdge + textXOffset,
baseline + textYOffset);
DrawMenuUnderline(menuPtr, mePtr, d, gc, tkfont, fmPtr,
x + textXOffset, y + textYOffset,
width, height);
}
}
if (mePtr->state == ENTRY_DISABLED) {
if (menuPtr->disabledFgPtr == NULL) {
XFillRectangle(menuPtr->display, d, menuPtr->disabledGC, x, y,
(unsigned) width, (unsigned) height);
} else if ((mePtr->image != NULL)
&& (menuPtr->disabledImageGC != NULL)) {
XFillRectangle(menuPtr->display, d, menuPtr->disabledImageGC,
leftEdge + imageXOffset,
(int) (y + (mePtr->height - imageHeight)/2 + imageYOffset),
(unsigned) imageWidth, (unsigned) imageHeight);
}
}
}
/*
*----------------------------------------------------------------------
*
* DrawMenuUnderline --
*
* On appropriate platforms, draw the underline character for the menu.
*
* Results:
* None.
*
* Side effects:
* Commands are output to X to display the menu in its current mode.
*
*----------------------------------------------------------------------
*/
static void
DrawMenuUnderline(
TkMenu *menuPtr, /* The menu to draw into */
TkMenuEntry *mePtr, /* The entry we are drawing */
Drawable d, /* What we are drawing into */
GC gc, /* The gc to draw into */
Tk_Font tkfont, /* The precalculated font */
const Tk_FontMetrics *fmPtr,/* The precalculated font metrics */
int x, int y,
TCL_UNUSED(int), int height)
{
if (mePtr->labelPtr != NULL) {
int len;
len = Tcl_GetCharLength(mePtr->labelPtr);
if (mePtr->underline < len && mePtr->underline >= -len) {
int activeBorderWidth, leftEdge, ch;
const char *label, *start, *end;
label = Tcl_GetString(mePtr->labelPtr);
start = Tcl_UtfAtIndex(label, (mePtr->underline < 0) ? mePtr->underline + len : mePtr->underline);
end = start + Tcl_UtfToUniChar(start, &ch);
Tk_GetPixelsFromObj(NULL, menuPtr->tkwin,
menuPtr->activeBorderWidthPtr, &activeBorderWidth);
leftEdge = x + mePtr->indicatorSpace + activeBorderWidth;
if (menuPtr->menuType == MENUBAR) {
leftEdge += 5;
}
Tk_UnderlineChars(menuPtr->display, d, gc, tkfont, label, leftEdge,
y + (height + fmPtr->ascent - fmPtr->descent) / 2,
start - label, end - label);
}
}
}
/*
*----------------------------------------------------------------------
*
* TkpPostMenu --
*
* Posts a menu on the screen so that the top left corner of the
* specified entry is located at the point (x, y) in screen coordinates.
* If the entry parameter is negative, the upper left corner of the
* menu itself is placed at the point.
*
* Results:
* None.
*
* Side effects:
* The menu is posted and handled.
*
*----------------------------------------------------------------------
*/
int
TkpPostMenu(
Tcl_Interp *interp,
TkMenu *menuPtr,
int x, int y, Tcl_Size index)
{
return TkpPostTearoffMenu(interp, menuPtr, x, y, index);
}
/*
*----------------------------------------------------------------------
*
* TkpPostTearoffMenu --
*
* Posts a tearoff menu on the screen so that the top left corner of the
* specified entry is located at the point (x, y) in screen coordinates.
* If the index parameter is negative, the upper left corner of the menu
* itself is placed at the point. On unix this is called when posting
* any menu. Adjusts the menu's position so that it fits on the screen,
* and maps and raises the menu.
*
* Results:
* Returns a standard Tcl Error.
*
* Side effects:
* The menu is posted.
*
*----------------------------------------------------------------------
*/
int
TkpPostTearoffMenu(
TCL_UNUSED(Tcl_Interp *), /* The interpreter of the menu */
TkMenu *menuPtr, /* The menu we are posting */
int x, int y, Tcl_Size index) /* The root X,Y coordinates where the
* specified entry will be posted */
{
int vRootX, vRootY, vRootWidth, vRootHeight;
int result;
TkActivateMenuEntry(menuPtr, TCL_INDEX_NONE);
TkRecomputeMenu(menuPtr);
result = TkPostCommand(menuPtr);
if (result != TCL_OK) {
return result;
}
/*
* The post commands could have deleted the menu, which means we are dead
* and should go away.
*/
if (menuPtr->tkwin == NULL) {
return TCL_OK;
}
/*
* Adjust the menu y position so that the specified entry will be located
* at the given coordinates.
*/
if (index >= menuPtr->numEntries) {
index = menuPtr->numEntries - 1;
}
if (index >= 0) {
y -= menuPtr->entries[index]->y;
}
/*
* Adjust the position of the menu if necessary to keep it visible on the
* screen. There are two special tricks to make this work right:
*
* 1. If a virtual root window manager is being used then the coordinates
* are in the virtual root window of menuPtr's parent; since the menu
* uses override-redirect mode it will be in the *real* root window for
* the screen, so we have to map the coordinates from the virtual root
* (if any) to the real root. Can't get the virtual root from the menu
* itself (it will never be seen by the wm) so use its parent instead
* (it would be better to have an an option that names a window to use
* for this...).
* 2. The menu may not have been mapped yet, so its current size might be
* the default 1x1. To compute how much space it needs, use its
* requested size, not its actual size.
*/
Tk_GetVRootGeometry(Tk_Parent(menuPtr->tkwin), &vRootX, &vRootY,
&vRootWidth, &vRootHeight);
vRootWidth -= Tk_ReqWidth(menuPtr->tkwin);
if (x > vRootX + vRootWidth) {
x = vRootX + vRootWidth;
}
if (x < vRootX) {
x = vRootX;
}
vRootHeight -= Tk_ReqHeight(menuPtr->tkwin);
if (y > vRootY + vRootHeight) {