/*
 * Copyright (c) 2005-2010, Haiku, Inc.
 * Distributed under the terms of the MIT license.
 *
 * Author:
 *              DarkWyrm <darkwyrm@gmail.com>
 */
#include "BitmapView.h"
#include "InternalEditors.h"
#include "ResourceData.h"

#include <DataIO.h>
#include <TranslationUtils.h>

#define M_IMAGE_CHANGED 'imch'

ImageEditor::ImageEditor(const BRect &frame, ResourceData *data, BHandler *owner)
  :     Editor(frame, data, owner)
{
        SetFlags(Flags()  | B_NOT_RESIZABLE | B_NOT_ZOOMABLE);
        SetTitle(data->GetName());
        
        // Set up the image and the viewer for such
        BMemoryIO memio(data->GetData(), data->GetLength());
        fImage = BTranslationUtils::GetBitmap(&memio);
        
        BRect imgsize;
        if (fImage)
                imgsize = ScaleRectToFit(fImage->Bounds(), BRect(0, 0, 200, 200));
        else
                imgsize.Set(0, 0, 200, 200);
        
        BView *back = new BView(Bounds(), "back", B_FOLLOW_ALL, B_WILL_DRAW);
        back->SetViewUIColor(B_PANEL_BACKGROUND_COLOR);
        AddChild(back);
        
        BRect r;
        
        float labelwidth = be_plain_font->StringWidth("ID: ");
        float strwidth = be_plain_font->StringWidth("(attr) ");
        
        font_height fh;
        be_plain_font->GetHeight(&fh);
        float strheight = fh.ascent + fh.descent + fh.leading + 5;
        
        fIDBox = new BTextControl(BRect(10, 10, 10 + (strwidth + labelwidth) + 15,
                                                                        10 + strheight),
                                                          "id", "ID: ", data->GetIDString(), NULL);
        fIDBox->SetDivider(labelwidth + 5);
        back->AddChild(fIDBox);
        
        r = fIDBox->Frame();
        r.OffsetBy(r.Width() + 10, 0);
        r.right = Bounds().right - 10;
        fNameBox = new BTextControl(r, "name", "Name: ", data->GetName(), NULL,
                                                                B_FOLLOW_LEFT_RIGHT | B_FOLLOW_TOP);
        fNameBox->SetDivider(be_plain_font->StringWidth("Name: ") + 5);
        back->AddChild(fNameBox);
        
        r = imgsize;
        
        r.OffsetTo( (Bounds().Width() - r.Width()) / 2, fNameBox->Frame().bottom + 10);
        fImageView = new BitmapView(r, "imageview", new BMessage(M_IMAGE_CHANGED), fImage,
                                                                NULL, B_PLAIN_BORDER, B_FOLLOW_NONE,
                                                                B_WILL_DRAW | B_FRAME_EVENTS);
        back->AddChild(fImageView);
        fImageView->SetConstrainDrops(false);
        
        // No limit on bitmap size
        fImageView->SetMaxBitmapSize(0, 0);
        fImageView->SetBitmapRemovable(false);
        
        fOK = new BButton(BRect(10, 10, 11, 11), "ok", "Cancel", new BMessage(M_UPDATE_RESOURCE),
                                          B_FOLLOW_RIGHT | B_FOLLOW_BOTTOM);
        fOK->ResizeToPreferred();
        fOK->SetLabel("OK");
        fOK->MakeDefault(true);
        back->AddChild(fOK);
        
        fOK->MoveTo(Bounds().right - fOK->Bounds().Width() - 10,
                                Bounds().bottom - fOK->Bounds().Height() - 10);
        r = fOK->Frame();
        
        r.OffsetBy(-r.Width() - 10, 0);
        fCancel = new BButton(r, "cancel", "Cancel", new BMessage(B_QUIT_REQUESTED),
                                          B_FOLLOW_RIGHT | B_FOLLOW_BOTTOM);
        back->AddChild(fCancel);
        
        ResizeTo(MAX(fImageView->Frame().right, fNameBox->Frame().right) + 20,
                        fImageView->Frame().bottom + fOK->Frame().Height() + 20);
        
        SetSizeLimits(Bounds().right, 30000, Bounds().bottom, 30000);
}


ImageEditor::~ImageEditor(void)
{
        delete fImage;
}


void
ImageEditor::MessageReceived(BMessage *msg)
{
        if (msg->WasDropped()) {
                fImageView->MessageReceived(msg);
        } else if (msg->what == M_IMAGE_CHANGED) {
                fImage = fImageView->GetBitmap();               
                BRect r = ScaleRectToFit(fImage->Bounds(), BRect(0, 0, 200, 200));
                fImageView->ResizeTo(r.Width(), r.Height());
                ResizeTo(MAX(fImageView->Frame().right, fNameBox->Frame().right) + 20,
                                fImageView->Frame().bottom + fOK->Frame().Height() + 20);
        } else
                BWindow::MessageReceived(msg);
}


void
ImageEditor::FrameResized(float w, float h)
{
        fImageView->MoveTo( (w - fImageView->Bounds().Width()) / 2,
                                                fNameBox->Frame().bottom + 10);
}