Esempio n. 1
0
static int TextSetup(TextElement *text, Tk_Window tkwin)
{
    const char *string = Tcl_GetString(text->textObj);
    Tk_Justify justify = TK_JUSTIFY_LEFT;
    int wrapLength = 0;

    text->tkfont = Tk_GetFontFromObj(tkwin, text->fontObj);
    Tk_GetJustifyFromObj(NULL, text->justifyObj, &justify);
    Tk_GetPixelsFromObj(NULL, tkwin, text->wrapLengthObj, &wrapLength);
    Tcl_GetBooleanFromObj(NULL, text->embossedObj, &text->embossed);

    text->textLayout = Tk_ComputeTextLayout(
	    text->tkfont, string, -1/*numChars*/, wrapLength, justify,
	    0/*flags*/, &text->width, &text->height);

    return 1;
}
Esempio n. 2
0
void
TkpComputeMenubarGeometry(
    TkMenu *menuPtr)		/* Structure describing menu. */
{
    Tk_Font tkfont, menuFont;
    Tk_FontMetrics menuMetrics, entryMetrics, *fmPtr;
    int width, height, i, j, x, y, currentRowHeight, maxWidth;
    int maxWindowWidth, lastRowBreak, lastEntry;
    int borderWidth, activeBorderWidth, helpMenuIndex = -1;
    TkMenuEntry *mePtr;

    if (menuPtr->tkwin == NULL) {
	return;
    }

    Tk_GetPixelsFromObj(NULL, menuPtr->tkwin, menuPtr->borderWidthPtr,
	    &borderWidth);
    Tk_GetPixelsFromObj(NULL, menuPtr->tkwin, menuPtr->activeBorderWidthPtr,
	    &activeBorderWidth);
    maxWidth = 0;
    if (menuPtr->numEntries == 0) {
	height = 0;
    } else {
	int borderWidth;

	maxWindowWidth = Tk_Width(menuPtr->tkwin);
	if (maxWindowWidth == 1) {
	    maxWindowWidth = 0x7ffffff;
	}
	currentRowHeight = 0;
	Tk_GetPixelsFromObj(NULL, menuPtr->tkwin, menuPtr->borderWidthPtr,
		&borderWidth);
	x = y = borderWidth;
	lastRowBreak = 0;

	/*
	 * On the Mac especially, getting font metrics can be quite slow, so
	 * we want to do it intelligently. We are going to precalculate them
	 * and pass them down to all of the measureing and drawing routines.
	 * We will measure the font metrics of the menu once, and if an entry
	 * has a font set, we will measure it as we come to it, and then we
	 * decide which set to give the geometry routines.
	 */

	menuFont = Tk_GetFontFromObj(menuPtr->tkwin, menuPtr->fontPtr);
	Tk_GetFontMetrics(menuFont, &menuMetrics);

	for (i = 0; i < menuPtr->numEntries; i++) {
	    mePtr = menuPtr->entries[i];
	    mePtr->entryFlags &= ~ENTRY_LAST_COLUMN;
	    if (mePtr->fontPtr != NULL) {
		tkfont = Tk_GetFontFromObj(menuPtr->tkwin, mePtr->fontPtr);
		Tk_GetFontMetrics(tkfont, &entryMetrics);
		fmPtr = &entryMetrics;
	    } else {
		tkfont = menuFont;
		fmPtr = &menuMetrics;
	    }

	    /*
	     * For every entry, we need to check to see whether or not we
	     * wrap. If we do wrap, then we have to adjust all of the previous
	     * entries' height and y position, because when we see them the
	     * first time, we don't know how big its neighbor might be.
	     */

	    if ((mePtr->type == SEPARATOR_ENTRY)
		    || (mePtr->type == TEAROFF_ENTRY)) {
		mePtr->height = mePtr->width = 0;
	    } else {
		GetMenuLabelGeometry(mePtr, tkfont, fmPtr, &width, &height);
		mePtr->height = height + 2 * activeBorderWidth + 10;
		mePtr->width = width;

		GetMenuIndicatorGeometry(menuPtr, mePtr, tkfont, fmPtr,
			&width, &height);
		mePtr->indicatorSpace = width;
		if (width > 0) {
		    mePtr->width += width;
		}
		mePtr->width += 2 * activeBorderWidth + 10;
	    }
	    if (mePtr->entryFlags & ENTRY_HELP_MENU) {
		helpMenuIndex = i;
	    } else if (x + mePtr->width + borderWidth > maxWindowWidth) {
		if (i == lastRowBreak) {
		    mePtr->y = y;
		    mePtr->x = x;
		    lastRowBreak++;
		    y += mePtr->height;
		    currentRowHeight = 0;
		} else {
		    x = borderWidth;
		    for (j = lastRowBreak; j < i; j++) {
			menuPtr->entries[j]->y = y + currentRowHeight
				- menuPtr->entries[j]->height;
			menuPtr->entries[j]->x = x;
			x += menuPtr->entries[j]->width;
		    }
		    lastRowBreak = i;
		    y += currentRowHeight;
		    currentRowHeight = mePtr->height;
		}
		if (x > maxWidth) {
		    maxWidth = x;
		}
		x = borderWidth;
	    } else {
		x += mePtr->width;
		if (mePtr->height > currentRowHeight) {
		    currentRowHeight = mePtr->height;
		}
	    }
	}

	lastEntry = menuPtr->numEntries - 1;
	if (helpMenuIndex == lastEntry) {
	    lastEntry--;
	}
	if ((lastEntry >= 0) && (x + menuPtr->entries[lastEntry]->width
		+ borderWidth > maxWidth)) {
	    maxWidth = x + menuPtr->entries[lastEntry]->width + borderWidth;
	}
	x = borderWidth;
	for (j = lastRowBreak; j < menuPtr->numEntries; j++) {
	    if (j == helpMenuIndex) {
		continue;
	    }
	    menuPtr->entries[j]->y = y + currentRowHeight
		    - menuPtr->entries[j]->height;
	    menuPtr->entries[j]->x = x;
	    x += menuPtr->entries[j]->width;
	}


	if (helpMenuIndex != -1) {
	    mePtr = menuPtr->entries[helpMenuIndex];
	    if (x + mePtr->width + borderWidth > maxWindowWidth) {
		y += currentRowHeight;
		currentRowHeight = mePtr->height;
		x = borderWidth;
	    } else if (mePtr->height > currentRowHeight) {
		currentRowHeight = mePtr->height;
	    }
	    mePtr->x = maxWindowWidth - borderWidth - mePtr->width;
	    mePtr->y = y + currentRowHeight - mePtr->height;
	}
	height = y + currentRowHeight + borderWidth;
    }
    width = Tk_Width(menuPtr->tkwin);

    /*
     * The X server doesn't like zero dimensions, so round up to at least 1 (a
     * zero-sized menu should never really occur, anyway).
     */

    if (width <= 0) {
	width = 1;
    }
    if (height <= 0) {
	height = 1;
    }
    menuPtr->totalWidth = maxWidth;
    menuPtr->totalHeight = height;
}
Esempio n. 3
0
void
TkpComputeStandardMenuGeometry(
    TkMenu *menuPtr)		/* Structure describing menu. */
{
    Tk_Font tkfont, menuFont;
    Tk_FontMetrics menuMetrics, entryMetrics, *fmPtr;
    int x, y, height, width, indicatorSpace, labelWidth, accelWidth;
    int windowWidth, windowHeight, accelSpace, i, j, lastColumnBreak = 0;
    TkMenuEntry *mePtr;
    int borderWidth, activeBorderWidth;

    if (menuPtr->tkwin == NULL) {
	return;
    }

    Tk_GetPixelsFromObj(NULL, menuPtr->tkwin, menuPtr->borderWidthPtr,
	    &borderWidth);
    Tk_GetPixelsFromObj(NULL, menuPtr->tkwin, menuPtr->activeBorderWidthPtr,
	    &activeBorderWidth);
    x = y = borderWidth;
    indicatorSpace = labelWidth = accelWidth = 0;
    windowHeight = windowWidth = 0;

    /*
     * On the Mac especially, getting font metrics can be quite slow, so we
     * want to do it intelligently. We are going to precalculate them and pass
     * them down to all of the measuring and drawing routines. We will measure
     * the font metrics of the menu once. If an entry does not have its own
     * font set, then we give the geometry/drawing routines the menu's font
     * and metrics. If an entry has its own font, we will measure that font
     * and give all of the geometry/drawing the entry's font and metrics.
     */

    menuFont = Tk_GetFontFromObj(menuPtr->tkwin, menuPtr->fontPtr);
    Tk_GetFontMetrics(menuFont, &menuMetrics);
    accelSpace = Tk_TextWidth(menuFont, "M", 1);

    for (i = 0; i < menuPtr->numEntries; i++) {
	mePtr = menuPtr->entries[i];
	if (mePtr->fontPtr == NULL) {
	    tkfont = menuFont;
	    fmPtr = &menuMetrics;
	} else {
	    tkfont = Tk_GetFontFromObj(menuPtr->tkwin, mePtr->fontPtr);
	    Tk_GetFontMetrics(tkfont, &entryMetrics);
	    fmPtr = &entryMetrics;
	}

	if ((i > 0) && mePtr->columnBreak) {
	    if (accelWidth != 0) {
		labelWidth += accelSpace;
	    }
	    for (j = lastColumnBreak; j < i; j++) {
		menuPtr->entries[j]->indicatorSpace = indicatorSpace;
		menuPtr->entries[j]->labelWidth = labelWidth;
		menuPtr->entries[j]->width = indicatorSpace + labelWidth
			+ accelWidth + 2 * activeBorderWidth;
		menuPtr->entries[j]->x = x;
		menuPtr->entries[j]->entryFlags &= ~ENTRY_LAST_COLUMN;
	    }
	    x += indicatorSpace + labelWidth + accelWidth
		    + 2 * activeBorderWidth;
	    windowWidth = x;
	    indicatorSpace = labelWidth = accelWidth = 0;
	    lastColumnBreak = i;
	    y = borderWidth;
	}

	if (mePtr->type == SEPARATOR_ENTRY) {
	    GetMenuSeparatorGeometry(menuPtr, mePtr, tkfont, fmPtr,
		    &width, &height);
	    mePtr->height = height;
	} else if (mePtr->type == TEAROFF_ENTRY) {
	    GetTearoffEntryGeometry(menuPtr, mePtr, tkfont, fmPtr,
		    &width, &height);
	    mePtr->height = height;
	    labelWidth = width;
	} else {
	    /*
	     * For each entry, compute the height required by that particular
	     * entry, plus three widths: the width of the label, the width to
	     * allow for an indicator to be displayed to the left of the label
	     * (if any), and the width of the accelerator to be displayed to
	     * the right of the label (if any). These sizes depend, of course,
	     * on the type of the entry.
	     */

	    GetMenuLabelGeometry(mePtr, tkfont, fmPtr, &width, &height);
	    mePtr->height = height;
	    if (!mePtr->hideMargin) {
		width += MENU_MARGIN_WIDTH;
	    }
	    if (width > labelWidth) {
	    	labelWidth = width;
	    }

	    GetMenuAccelGeometry(menuPtr, mePtr, tkfont,
		    fmPtr, &width, &height);
	    if (height > mePtr->height) {
	    	mePtr->height = height;
	    }
	    if (!mePtr->hideMargin) {
		width += MENU_MARGIN_WIDTH;
	    }
	    if (width > accelWidth) {
	    	accelWidth = width;
	    }

	    GetMenuIndicatorGeometry(menuPtr, mePtr, tkfont, fmPtr,
		    &width, &height);
	    if (height > mePtr->height) {
	    	mePtr->height = height;
	    }
	    if (!mePtr->hideMargin) {
		width += MENU_MARGIN_WIDTH;
	    }
	    if (width > indicatorSpace) {
	    	indicatorSpace = width;
	    }

	    mePtr->height += 2 * activeBorderWidth + MENU_DIVIDER_HEIGHT;
    	}
	mePtr->y = y;
	y += mePtr->height;
	if (y > windowHeight) {
	    windowHeight = y;
	}
    }

    if (accelWidth != 0) {
	labelWidth += accelSpace;
    }
    for (j = lastColumnBreak; j < menuPtr->numEntries; j++) {
	menuPtr->entries[j]->indicatorSpace = indicatorSpace;
	menuPtr->entries[j]->labelWidth = labelWidth;
	menuPtr->entries[j]->width = indicatorSpace + labelWidth
		+ accelWidth + 2 * activeBorderWidth;
	menuPtr->entries[j]->x = x;
	menuPtr->entries[j]->entryFlags |= ENTRY_LAST_COLUMN;
    }
    windowWidth = x + indicatorSpace + labelWidth + accelWidth
	    + 2 * activeBorderWidth + 2 * borderWidth;

    windowHeight += borderWidth;

    /*
     * The X server doesn't like zero dimensions, so round up to at least 1 (a
     * zero-sized menu should never really occur, anyway).
     */

    if (windowWidth <= 0) {
	windowWidth = 1;
    }
    if (windowHeight <= 0) {
	windowHeight = 1;
    }
    menuPtr->totalWidth = windowWidth;
    menuPtr->totalHeight = windowHeight;
}
Esempio n. 4
0
void
TkpDrawMenuEntry(
    TkMenuEntry *mePtr,		/* The entry to draw */
    Drawable d,			/* What to draw into */
    Tk_Font tkfont,		/* Precalculated font for menu */
    const Tk_FontMetrics *menuMetricsPtr,
				/* Precalculated metrics for menu */
    int x,			/* X-coordinate of topleft of entry */
    int y,			/* Y-coordinate of topleft of entry */
    int width,			/* Width of the entry rectangle */
    int height,			/* Height of the current rectangle */
    int strictMotif,		/* Boolean flag */
    int drawArrow)		/* Whether or not to draw the cascade arrow
				 * for cascade items. Only applies to
				 * Windows. */
{
    GC gc, indicatorGC;
    XColor *indicatorColor, *disableColor = NULL;
    TkMenu *menuPtr = mePtr->menuPtr;
    Tk_3DBorder bgBorder, activeBorder;
    const Tk_FontMetrics *fmPtr;
    Tk_FontMetrics entryMetrics;
    int padY = (menuPtr->menuType == MENUBAR) ? 3 : 0;
    int adjustedY = y + padY;
    int adjustedHeight = height - 2 * padY;

    /*
     * Choose the gc for drawing the foreground part of the entry.
     */

    if ((mePtr->state == ENTRY_ACTIVE) && !strictMotif) {
	gc = mePtr->activeGC;
	if (gc == NULL) {
	    gc = menuPtr->activeGC;
	}
    } else {
    	TkMenuEntry *cascadeEntryPtr;
    	int parentDisabled = 0;

    	for (cascadeEntryPtr = menuPtr->menuRefPtr->parentEntryPtr;
    		cascadeEntryPtr != NULL;
    		cascadeEntryPtr = cascadeEntryPtr->nextCascadePtr) {
	    if (cascadeEntryPtr->namePtr != NULL) {
		const char *name = Tcl_GetString(cascadeEntryPtr->namePtr);

		if (strcmp(name, Tk_PathName(menuPtr->tkwin)) == 0) {
		    if (cascadeEntryPtr->state == ENTRY_DISABLED) {
			parentDisabled = 1;
		    }
		    break;
    	    	}
    	    }
    	}

	if (((parentDisabled || (mePtr->state == ENTRY_DISABLED)))
		&& (menuPtr->disabledFgPtr != NULL)) {
	    gc = mePtr->disabledGC;
	    if (gc == NULL) {
		gc = menuPtr->disabledGC;
	    }
	} else {
	    gc = mePtr->textGC;
	    if (gc == NULL) {
		gc = menuPtr->textGC;
	    }
	}
    }
    indicatorGC = mePtr->indicatorGC;
    if (indicatorGC == NULL) {
	indicatorGC = menuPtr->indicatorGC;
    }
    if (mePtr->indicatorFgPtr) {
	indicatorColor = Tk_GetColorFromObj(menuPtr->tkwin,
		mePtr->indicatorFgPtr);
    } else {
	indicatorColor = Tk_GetColorFromObj(menuPtr->tkwin,
		menuPtr->indicatorFgPtr);
    }

    if (menuPtr->disabledFgPtr != NULL) {
	disableColor = Tk_GetColorFromObj(menuPtr->tkwin,
		menuPtr->disabledFgPtr);
    }

    bgBorder = Tk_Get3DBorderFromObj(menuPtr->tkwin,
	    (mePtr->borderPtr == NULL)
	    ? menuPtr->borderPtr : mePtr->borderPtr);
    if (strictMotif) {
	activeBorder = bgBorder;
    } else {
	activeBorder = Tk_Get3DBorderFromObj(menuPtr->tkwin,
	    (mePtr->activeBorderPtr == NULL)
	    ? menuPtr->activeBorderPtr : mePtr->activeBorderPtr);
    }

    if (mePtr->fontPtr == NULL) {
	fmPtr = menuMetricsPtr;
    } else {
	tkfont = Tk_GetFontFromObj(menuPtr->tkwin, mePtr->fontPtr);
	Tk_GetFontMetrics(tkfont, &entryMetrics);
	fmPtr = &entryMetrics;
    }

    /*
     * Need to draw the entire background, including padding. On Unix, for
     * menubars, we have to draw the rest of the entry taking into account the
     * padding.
     */

    DrawMenuEntryBackground(menuPtr, mePtr, d, activeBorder,
	    bgBorder, x, y, width, height);

    if (mePtr->type == SEPARATOR_ENTRY) {
	DrawMenuSeparator(menuPtr, mePtr, d, gc, tkfont,
		fmPtr, x, adjustedY, width, adjustedHeight);
    } else if (mePtr->type == TEAROFF_ENTRY) {
	DrawTearoffEntry(menuPtr, mePtr, d, gc, tkfont, fmPtr, x, adjustedY,
		width, adjustedHeight);
    } else {
	DrawMenuEntryLabel(menuPtr, mePtr, d, gc, tkfont, fmPtr, x, adjustedY,
		width, adjustedHeight);
	DrawMenuEntryAccelerator(menuPtr, mePtr, d, gc, tkfont, fmPtr,
		activeBorder, x, adjustedY, width, adjustedHeight, drawArrow);
	if (!mePtr->hideMargin) {
	    if (mePtr->state == ENTRY_ACTIVE) {
		bgBorder = activeBorder;
	    }
	    DrawMenuEntryIndicator(menuPtr, mePtr, d, bgBorder, indicatorColor,
		    disableColor, tkfont, fmPtr, x, adjustedY, width,
		    adjustedHeight);
	}
    }
}