C++ BMenu::FillRect方法代码示例

void
TWindowMenuItem::Draw()
{
	if (!fExpanded) {
		BMenuItem::Draw();
		return;
	}

	// TODO: Tint this smartly based on the low color, this does
	// nothing to black.
	rgb_color menuColor = tint_color(Menu()->LowColor(), 1.07);
	BRect frame(Frame());
	BMenu* menu = Menu();

	menu->PushState();

	// if not selected or being tracked on, fill with gray
	TBarView* barview = (static_cast<TBarApp*>(be_app))->BarView();
	if ((!IsSelected() && !menu->IsRedrawAfterSticky())
		|| barview->Dragging() || !IsEnabled()) {

		rgb_color shadow = tint_color(menuColor, 1.09);
		menu->SetHighColor(shadow);
		frame.right = frame.left + kHPad / 2;
		menu->FillRect(frame);

		menu->SetHighColor(menuColor);
		frame.left = frame.right + 1;
		frame.right = Frame().right;
		menu->FillRect(frame);
	}

	if (IsEnabled() && IsSelected() && !menu->IsRedrawAfterSticky()) {
		// fill
		rgb_color backColor = tint_color(menuColor,
			B_HIGHLIGHT_BACKGROUND_TINT);
		menu->SetLowColor(backColor);
		menu->SetHighColor(backColor);
		menu->FillRect(frame);
	} else {
		menu->SetLowColor(menuColor);
		menu->SetHighColor(menuColor);
	}

	DrawContent();

	menu->PopState();
}

void ColorMenuItem::Draw /*Content*/() {
float w, h;
BPoint p;
	BMenu *m = Menu();
	if (m == NULL) return;
	
	p = ContentLocation();
	GetContentSize(&w, &h);	

	rgb_color c = color;
	if (!IsEnabled()) {
		c.green = c.blue = c.red = 
			(uint8) (0.4 * c.red + 0.2 * c.blue + 0.4 * c.green);
	}

	m->SetHighColor(c);
	m->FillRect(BRect(p.x+2, p.y+2, p.x+w-2, p.y+h-2));
	
	if (IsMarked()) {
	rgb_color blue={0, 0, 255, 255};
		m->SetHighColor(blue);
		m->StrokeRect(BRect(p.x, p.y, p.x+w, p.y+h));
	}

	if (IsSelected()) {
	rgb_color red={0, 0, 255, 255};
		m->SetHighColor(red);
		m->StrokeRect(BRect(p.x, p.y, p.x+w, p.y+h));
	}
}

void BitmapMenuItem::Draw(void)
{
	BMenu* menu = Menu();
	if (menu) {
		BRect itemFrame = Frame();
		BRect bitmapFrame = itemFrame;
		bitmapFrame.InsetBy(2, 2); // account for 2-pixel margin
		
		menu->SetDrawingMode(B_OP_COPY);
		menu->SetHighColor(BKG_GREY);
		menu->FillRect(itemFrame);
		menu->DrawBitmap(&m_bitmap, bitmapFrame);
		
		if (IsSelected()) {
			// a nonstandard but simple way to draw highlights
			menu->SetDrawingMode(B_OP_INVERT);
			menu->SetHighColor(0,0,0);
			menu->FillRect(itemFrame);
		}
	}
}

void
TTeamMenuItem::Draw()
{
	BRect frame(Frame());
	BMenu* menu = Menu();
	menu->PushState();
	rgb_color menuColor = menu->LowColor();
	TBarView* barView = (static_cast<TBarApp*>(be_app))->BarView();

	bool canHandle = !barView->Dragging()
		|| barView->AppCanHandleTypes(Signature());

	if (be_control_look != NULL) {
		uint32 flags = 0;
		if (_IsSelected() && canHandle)
			flags |= BControlLook::B_ACTIVATED;

		uint32 borders = BControlLook::B_TOP_BORDER;
		if (fVertical) {
			menu->SetHighColor(tint_color(menuColor, B_DARKEN_1_TINT));
			borders |= BControlLook::B_LEFT_BORDER
				| BControlLook::B_RIGHT_BORDER;
			menu->StrokeLine(frame.LeftBottom(), frame.RightBottom());
			frame.bottom--;

			be_control_look->DrawMenuBarBackground(menu, frame, frame,
				menuColor, flags, borders);
		} else {
			if (flags & BControlLook::B_ACTIVATED)
				menu->SetHighColor(tint_color(menuColor, B_DARKEN_3_TINT));
			else
				menu->SetHighColor(tint_color(menuColor, 1.22));
			borders |= BControlLook::B_BOTTOM_BORDER;
			menu->StrokeLine(frame.LeftTop(), frame.LeftBottom());
			frame.left++;

			be_control_look->DrawButtonBackground(menu, frame, frame,
				menuColor, flags, borders);
		}

		menu->MovePenTo(ContentLocation());
		DrawContent();
		menu->PopState();
		return;
	}

	// if not selected or being tracked on, fill with gray
	if ((!_IsSelected() && !menu->IsRedrawAfterSticky()) || !canHandle
		|| !IsEnabled()) {
		frame.InsetBy(1, 1);
		menu->SetHighColor(menuColor);
		menu->FillRect(frame);
	}

	// draw the gray, unselected item, border
	if (!_IsSelected() || !IsEnabled()) {
		rgb_color shadow = tint_color(menuColor, B_DARKEN_1_TINT);
		rgb_color light = tint_color(menuColor, B_LIGHTEN_2_TINT);

		frame = Frame();

		menu->SetHighColor(shadow);
		if (fVertical)
			menu->StrokeLine(frame.LeftBottom(), frame.RightBottom());
		else
			menu->StrokeLine(frame.LeftBottom() + BPoint(1, 0),
				frame.RightBottom());

		menu->StrokeLine(frame.RightBottom(), frame.RightTop());

		menu->SetHighColor(light);
		menu->StrokeLine(frame.RightTop() + BPoint(-1, 0), frame.LeftTop());
		if (fVertical)
			menu->StrokeLine(frame.LeftTop(), frame.LeftBottom()
				+ BPoint(0, -1));
		else
			menu->StrokeLine(frame.LeftTop(), frame.LeftBottom());
	}

	// if selected or being tracked on, fill with the hilite gray color
	if (IsEnabled() && _IsSelected() && !menu->IsRedrawAfterSticky()
		&& canHandle) {
		// fill
		menu->SetHighColor(tint_color(menuColor, B_HIGHLIGHT_BACKGROUND_TINT));
		menu->FillRect(frame);

		// these continue the dark grey border on the left or top edge
		menu->SetHighColor(tint_color(menuColor, B_DARKEN_4_TINT));
		if (fVertical) {
			// dark line at top
			menu->StrokeLine(frame.LeftTop(), frame.RightTop());
		} else {
			// dark line on the left
			menu->StrokeLine(frame.LeftTop(), frame.LeftBottom());
		}
	} else
		menu->SetLowColor(menuColor);

	menu->MovePenTo(ContentLocation());
	DrawContent();
//.........这里部分代码省略.........

void
MemoryBarMenuItem::DrawBar(bool force)
{
	// only draw anything if something has changed
	if (!force && fWriteMemory == fLastWrite && fAllMemory == fLastAll
		&& fCommittedMemory == fLastCommitted)
		return;

	bool selected = IsSelected();
	BRect frame = Frame();
	BMenu* menu = Menu();

	// draw the bar itself

	BRect rect(frame.right - kMargin - kBarWidth, frame.top + 5,
		frame.right - kMargin, frame.top + 13);
	if (fWriteMemory < 0)
		return;

	if (fGrenze1 < 0)
		force = true;

	if (force) {
		if (selected)
			menu->SetHighColor(gFrameColorSelected);
		else
			menu->SetHighColor(gFrameColor);
		menu->StrokeRect(rect);
	}

	rect.InsetBy(1, 1);
	BRect r = rect;
	double grenze1 = rect.left + (rect.right - rect.left) * float(fWriteMemory)
		/ fCommittedMemory;
	double grenze2 = rect.left + (rect.right - rect.left) * float(fAllMemory)
		/ fCommittedMemory;
	if (grenze1 > rect.right)
		grenze1 = rect.right;
	if (grenze2 > rect.right)
		grenze2 = rect.right;
	r.right = grenze1;
	if (!force)
		r.left = fGrenze1;
	if (r.left < r.right) {
		if (selected)
			menu->SetHighColor(gKernelColorSelected);
		else
			menu->SetHighColor(gKernelColor);
		menu->FillRect(r);
	}

	r.left = grenze1;
	r.right = grenze2;

	if (!force) {
		if (fGrenze2 > r.left && r.left >= fGrenze1)
			r.left = fGrenze2;
		if (fGrenze1 < r.right && r.right  <= fGrenze2)
			r.right = fGrenze1;
	}

	if (r.left < r.right) {
		if (selected)
			menu->SetHighColor(gUserColorSelected);
		else
			menu->SetHighColor(gUserColor);
		menu->FillRect(r);
	}

	r.left = grenze2;
	r.right = rect.right;

	if (!force)
		r.right = fGrenze2;

	if (r.left < r.right) {
		if (selected)
			menu->SetHighColor(gWhiteSelected);
		else
			menu->SetHighColor(kWhite);
		menu->FillRect(r);
	}

	menu->SetHighColor(kBlack);
	fGrenze1 = grenze1;
	fGrenze2 = grenze2;

	fLastCommitted = fCommittedMemory;

	// Draw the values if necessary; if only fCommitedMemory changes, only
	// the bar might have to be updated

	if (!force && fWriteMemory == fLastWrite && fAllMemory == fLastAll)
		return;

	if (selected)
		menu->SetLowColor(gMenuBackColorSelected);
	else
		menu->SetLowColor(gMenuBackColor);

//.........这里部分代码省略.........

	virtual	void DrawContent()
	{
		BRect		b = Frame();
		BMenu		*parent = Menu();
		BPoint		loc = parent->PenLocation();

		enum {
			W_CHAR = 0,
			A_CHAR = 1,
			OPEN_CHAR = 2,
			CLOSE_CHAR = 3,
			SPACE_CHAR = 4,
			NUM_CHARS = 5
		};
		float escapements[NUM_CHARS];
		BFont font;
		parent->GetFont(&font);
		font.GetEscapements("WA() ", NUM_CHARS, escapements);
		for (int32 i=0; i<NUM_CHARS; i++) {
			escapements[i] *= font.Size();
		}

		const float blockWidth = escapements[W_CHAR]+escapements[A_CHAR];

		const rgb_color old_col = parent->HighColor();
		font_height fh;

		const bool showInitial = !CompareColors(fInitialColor, fColor);

		b.InsetBy(1, 1);
		b.bottom -= 1;
		b.left = loc.x;

		if (showInitial) {
			parent->GetFontHeight(&fh);
			parent->DrawString("(", BPoint(b.left, loc.y+fh.ascent));
		}
		b.left += escapements[OPEN_CHAR];
		b.InsetBy(2, 2);
		b.right = b.left + escapements[W_CHAR];
		if (showInitial) {
			parent->SetHighColor(fInitialColor);
			parent->FillRect(b);
		}
		b.InsetBy(-1, -1);
		if (showInitial) {
			parent->SetHighColor(old_col);
			parent->StrokeRect(b);
		}
		b.InsetBy(-1, -1);
		if (showInitial) {
			parent->DrawString(")", BPoint(b.right+1, loc.y+fh.ascent));
		}
		b.right += escapements[CLOSE_CHAR] + 1;

		b.left = b.right + escapements[SPACE_CHAR];
		b.right = b.left + blockWidth;

		parent->SetHighColor(fColor);
		parent->FillRect(b);
		parent->SetHighColor(old_col);
		b.InsetBy(-1, -1);
		parent->StrokeRect(b);

		parent->MovePenTo(b.right + escapements[SPACE_CHAR]*2 + 2, loc.y);

		BMenuItem::DrawContent();
	}

void
KernelMemoryBarMenuItem::DrawBar(bool force)
{
	bool selected = IsSelected();
	BRect frame = Frame();
	BMenu* menu = Menu();

	// draw the bar itself
	BRect cadre (frame.right - kMargin - kBarWidth, frame.top + 5,
		frame.right - kMargin, frame.top + 13);

	if (fLastSum < 0)
		force = true;
	if (force) {
		if (selected)
			menu->SetHighColor(gFrameColorSelected);
		else
			menu->SetHighColor(gFrameColor);
		menu->StrokeRect (cadre);
	}
	cadre.InsetBy(1, 1);
	BRect r = cadre;

	float grenze1 = cadre.left + (cadre.right - cadre.left)
						* fCachedMemory / fPhysicalMemory;
	float grenze2 = cadre.left + (cadre.right - cadre.left)
						* fCommittedMemory / fPhysicalMemory;
	if (grenze1 > cadre.right)
		grenze1 = cadre.right;
	if (grenze2 > cadre.right)
		grenze2 = cadre.right;
	r.right = grenze1;
	if (!force)
		r.left = fGrenze1;
	if (r.left < r.right) {
		if (selected)
			menu->SetHighColor(gKernelColorSelected);
		else
			menu->SetHighColor(gKernelColor);
//		menu->SetHighColor(gKernelColor);
		menu->FillRect (r);
	}
	r.left = grenze1;
	r.right = grenze2;
	if (!force) {
		if (fGrenze2 > r.left && r.left >= fGrenze1)
			r.left = fGrenze2;
		if (fGrenze1 < r.right && r.right <= fGrenze2)
			r.right = fGrenze1;
	}
	if (r.left < r.right) {
		if (selected)
			menu->SetHighColor(tint_color (kLavender, B_HIGHLIGHT_BACKGROUND_TINT));
		else
			menu->SetHighColor(kLavender);
//		menu->SetHighColor(gUserColor);
		menu->FillRect (r);
	}
	r.left = grenze2;
	r.right = cadre.right;
	if (!force)
		r.right = fGrenze2;
	if (r.left < r.right) {
		if (selected)
			menu->SetHighColor(gWhiteSelected);
		else
			menu->SetHighColor(kWhite);
		menu->FillRect(r);
	}
	menu->SetHighColor(kBlack);
	fGrenze1 = grenze1;
	fGrenze2 = grenze2;

	// draw the value
	double sum = fCachedMemory * FLT_MAX + fCommittedMemory;
	if (force || sum != fLastSum) {
		if (selected) {
			menu->SetLowColor(gMenuBackColorSelected);
			menu->SetHighColor(gMenuBackColorSelected);
		} else {
			menu->SetLowColor(gMenuBackColor);
			menu->SetHighColor(gMenuBackColor);
		}
		BRect trect(cadre.left - kMargin - gMemoryTextWidth, frame.top,
			cadre.left - kMargin, frame.bottom);
		menu->FillRect(trect);
		menu->SetHighColor(kBlack);

		char infos[128];
		string_for_size(fCachedMemory * 1024.0, infos, sizeof(infos));
		BPoint loc(cadre.left, cadre.bottom + 1);
		loc.x -= kMargin + gMemoryTextWidth / 2 + menu->StringWidth(infos);
		menu->DrawString(infos, loc);
		string_for_size(fCommittedMemory * 1024.0, infos, sizeof(infos));
		loc.x = cadre.left - kMargin - menu->StringWidth(infos);
		menu->DrawString(infos, loc);
		fLastSum = sum;
	}
}