haiku/src/apps/deskbar/WindowMenuItem.cpp

/*
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*/

#include "WindowMenuItem.h"

#include <stdio.h>

#include <Bitmap.h>
#include <Debug.h>

#include "BarApp.h"
#include "BarMenuBar.h"
#include "ExpandoMenuBar.h"
#include "icons.h"
#include "ResourceSet.h"
#include "TeamMenu.h"
#include "WindowMenu.h"


const float	kHPad = 10.0f;
const float	kVPad = 2.0f;
const float	kLabelOffset = 8.0f;
const BRect	kIconRect(1.0f, 1.0f, 13.0f, 14.0f);


TWindowMenuItem::TWindowMenuItem(const char *title, int32 id, bool mini,
		bool currentWorkspace, bool dragging)
	: BMenuItem(title, NULL),
	fID(id),
	fMini(mini),
	fCurrentWorkSpace(currentWorkspace),
	fDragging(dragging),
	fExpanded(false),
	fRequireUpdate(false),
	fModified(false),
	fFullTitle("")
{
	Initialize(title);
}


void
TWindowMenuItem::Initialize(const char *title)
{
	if (fMini) {
 		fBitmap = fCurrentWorkSpace
			? AppResSet()->FindBitmap(B_MESSAGE_TYPE, R_WindowHiddenIcon)
			: AppResSet()->FindBitmap(B_MESSAGE_TYPE, R_WindowHiddenSwitchIcon);
	} else {
 		fBitmap = fCurrentWorkSpace
			? AppResSet()->FindBitmap(B_MESSAGE_TYPE, R_WindowShownIcon)
			: AppResSet()->FindBitmap(B_MESSAGE_TYPE, R_WindowShownSwitchIcon);
	}

	BFont font(be_plain_font);
	fTitleWidth = ceilf(font.StringWidth(title));
	font_height fontHeight;
	font.GetHeight(&fontHeight);
	fTitleAscent = ceilf(fontHeight.ascent);
	fTitleDescent = ceilf(fontHeight.descent + fontHeight.leading);
}


void
TWindowMenuItem::SetTo(const char *title, int32 id, bool mini,
	bool currentWorkspace, bool dragging)
{
	fModified = fCurrentWorkSpace != currentWorkspace || fMini != mini;

	fID = id;
	fMini = mini;
	fCurrentWorkSpace = currentWorkspace;
	fDragging = dragging;
	fRequireUpdate = false;

	Initialize(title);
}


bool
TWindowMenuItem::ChangedState()
{
	return fModified;
}


void
TWindowMenuItem::SetLabel(const char* string)
{
	fFullTitle = string;
	BString truncatedTitle = fFullTitle;

	if (fExpanded && Menu()) {
		BPoint contLoc = ContentLocation() + BPoint(kHPad, kVPad);
		contLoc.x += kIconRect.Width() + kLabelOffset;

		be_plain_font->TruncateString(&truncatedTitle, B_TRUNCATE_MIDDLE,
			Frame().Width() - contLoc.x - 3.0f);
	}

	if (strcmp(Label(), truncatedTitle.String()) != 0)
		BMenuItem::SetLabel(truncatedTitle.String());
}


int32
TWindowMenuItem::ID()
{
	return fID;
}


void
TWindowMenuItem::GetContentSize(float *width, float *height)
{
	if (width != NULL) {
		if (!fExpanded) {
			*width = kHPad + fTitleWidth + kHPad;
			if (fID >= 0)
				*width += fBitmap->Bounds().Width() + kLabelOffset;
		} else
			*width = Frame().Width()/* - kHPad*/;
	}

	// Note: when the item is in "expanded mode", ie embedded into
	// the Deskbar itself, then a truncated label is used in SetLabel()
	// The code here is ignorant of this fact, but it doesn't seem to
	// hurt anything.

	if (height != NULL) {
		*height = (fID >= 0) ? fBitmap->Bounds().Height() : 0.0f;
		float labelHeight = fTitleAscent + fTitleDescent;
		*height = (labelHeight > *height) ? labelHeight : *height;
		*height += kVPad * 2;
	}
}


void
TWindowMenuItem::Draw()
{
	if (fExpanded) {
		rgb_color menuColor = Menu()->ViewColor();
		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()) {
			menu->SetHighColor(menuColor);
			menu->FillRect(frame);

			if (fExpanded) {
				rgb_color shadow = tint_color(menuColor,
					(B_NO_TINT + B_DARKEN_1_TINT) / 2.0f);
				menu->SetHighColor(shadow);
				frame.right = frame.left + kHPad / 2;
				menu->FillRect(frame);
			}
		}

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

		DrawContent();
		menu->PopState();
	} else
		BMenuItem::Draw();
}


void
TWindowMenuItem::DrawContent()
{
	BMenu *menu = Menu();
	menu->PushState();

	BRect frame(Frame());
	BPoint contLoc = ContentLocation() + BPoint(kHPad, kVPad);
//	if (fExpanded)
//		contLoc.x += kHPad;

	if (fID >= 0) {
		menu->SetDrawingMode(B_OP_OVER);

		float width = fBitmap->Bounds().Width();

		if (width > 16)
			contLoc.x -= 8;

		menu->MovePenTo(contLoc);
		menu->DrawBitmapAsync(fBitmap);

		if (width > 16)
			contLoc.x += 8;

		contLoc.x += kIconRect.Width() + kLabelOffset;
	}

	menu->SetDrawingMode(B_OP_COPY);

	contLoc.y = frame.top
		+ ((frame.Height() - fTitleAscent - fTitleDescent) / 2) + 1.0f;

	menu->MovePenTo(contLoc);
	// Set the pen color so that the label is always visible.
	menu->SetHighColor(0, 0, 0);

	BMenuItem::DrawContent();

	menu->PopState();
}


status_t
TWindowMenuItem::Invoke(BMessage* /*message*/)
{
	if (!fDragging) {
		if (fID >= 0) {
			int32 action = (modifiers() & B_CONTROL_KEY) != 0
				? B_MINIMIZE_WINDOW : B_BRING_TO_FRONT;

			bool doZoom = false;
			BRect zoomRect(0.0f, 0.0f, 0.0f, 0.0f);
			BMenuItem *item;
			if (!fExpanded)
				item = Menu()->Superitem();
			else
				item = this;

			if (item->Menu()->Window() != NULL) {
				zoomRect = item->Menu()->ConvertToScreen(item->Frame());
				doZoom = fMini && action == B_BRING_TO_FRONT
					|| !fMini && action == B_MINIMIZE_WINDOW;
			}

			do_window_action(fID, action, zoomRect, doZoom);
		}
	}
	return B_OK;
}


void
TWindowMenuItem::ExpandedItem(bool status)
{
	if (fExpanded != status) {
		fExpanded = status;
		SetLabel(fFullTitle.String());
	}
}


void
TWindowMenuItem::SetRequireUpdate()
{
	fRequireUpdate = true;
}


bool
TWindowMenuItem::RequiresUpdate()
{
	return fRequireUpdate;
}