desktop/src/ContactPhotoWidget.cc

   1 ///
   2 /// \file       ContactPhotoWidget.cc
   3 ///             Bitmap button that shows a Contact::Image photo
   4 ///
   5
   6 /*
   7     Copyright (C) 2011-2013, Net Direct Inc. (http://www.netdirect.ca/)
   8
   9     This program is free software; you can redistribute it and/or modify
  10     it under the terms of the GNU General Public License as published by
  11     the Free Software Foundation; either version 2 of the License, or
  12     (at your option) any later version.
  13
  14     This program is distributed in the hope that it will be useful,
  15     but WITHOUT ANY WARRANTY; without even the implied warranty of
  16     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  17
  18     See the GNU General Public License in the COPYING file at the
  19     root directory of this project for more details.
  20 */
  21
  22 #include "ContactPhotoWidget.h"
  23 #include "windowids.h"
  24 #include <barry/barry.h>
  25 #include <wx/mstream.h>
  26 #include <iostream>
  27 #include <fstream>
  28 #include "wxi18n.h"
  29
  30 using namespace std;
  31
  32 #define MAX_IMAGE_HEIGHT 60
  33 #define DEFAULT_IMAGE_WIDTH 50
  34
  35 ContactPhotoWidget::ContactPhotoWidget(wxWindow *parent,
  36                                         wxWindowID id,
  37                                         Barry::Contact &rec)
  38         : m_rec(rec)
  39 {
  40         // TRANSLATORS: this is the first part of a file selector string,
  41         // as in: "Images files (*.bmp;*.jpg;*.png)"
  42         // The file types are not part of the translation.
  43         m_file_filter = _W("Image files");
  44         m_file_filter += _T(" (*.bmp;*.jpg;*.png;*.xmp;*.tif)|*.bmp;*.jpg;*.png;*.xmp;*.tif;*.tiff|");
  45         // TRANSLATORS: this is a file selector string.  See "Image files"
  46         // for more info.
  47         m_file_filter += _W("All files");
  48         m_file_filter += _T(" (*.*)|*.*");
  49
  50         // limit size of image to 60 px height
  51         int max_height = MAX_IMAGE_HEIGHT, width = 0;
  52
  53         if( m_rec.Image.size() ) {
  54                 width = LoadRecImage(max_height);
  55         }
  56
  57         // anything loaded?  if not, load "empty" bitmap
  58         if( !m_bitmap.get() ) {
  59                 width = DEFAULT_IMAGE_WIDTH;
  60                 max_height = MAX_IMAGE_HEIGHT;
  61                 m_bitmap.reset( new wxBitmap(width, max_height) );
  62                 DrawNoPhoto(*m_bitmap, width, max_height);
  63         }
  64
  65         // have bitmap, create our bitmap button
  66         Create(parent, id, *m_bitmap, wxDefaultPosition,
  67                 wxSize(width, max_height));
  68 }
  69
  70 int ContactPhotoWidget::LoadRecImage(int max_height)
  71 {
  72         // load m_rec.Image into a wxBitmap
  73         wxMemoryInputStream stream(m_rec.Image.data(), m_rec.Image.size());
  74         wxImage jpeg(stream, wxBITMAP_TYPE_JPEG);
  75
  76         float ratio = (float)max_height / jpeg.GetHeight();
  77         int width = jpeg.GetWidth() * ratio;
  78
  79         jpeg.Rescale(width, max_height, wxIMAGE_QUALITY_HIGH);
  80         m_bitmap.reset( new wxBitmap(jpeg) );
  81         return width;
  82 }
  83
  84 void ContactPhotoWidget::PromptAndSave(wxWindow *parent)
  85 {
  86         if( !m_rec.Image.size() ) {
  87                 wxMessageBox(_W("There is no photo available to save."),
  88                         _W("No Photo"),
  89                         wxICON_INFORMATION | wxOK, this);
  90                 return;
  91         }
  92
  93         // TRANSLATORS: this is a file selector string.  See "Image files"
  94         // for more info.
  95         wxString filter = _W("JPEG files");
  96         filter += _T(" (*.jpg)|*.jpg");
  97
  98         wxFileDialog dlg(parent, _W("Save Photo as JPEG..."), _T(""), _T(""),
  99                 filter,
 100                 wxFD_SAVE | wxFD_OVERWRITE_PROMPT | wxFD_PREVIEW);
 101         if( dlg.ShowModal() == wxID_OK ) {
 102                 ofstream ofs(dlg.GetPath().utf8_str(), ios::binary);
 103                 ofs.write(m_rec.Image.data(), m_rec.Image.size());
 104         }
 105 }
 106
 107 /// Returns true if a new image has been loaded (may want to resize)
 108 bool ContactPhotoWidget::PromptAndLoad(wxWindow *parent)
 109 {
 110         wxFileDialog dlg(parent, _W("Load Photo..."), _T(""), _T(""),
 111                 m_file_filter,
 112                 wxFD_OPEN | wxFD_PREVIEW);
 113         if( dlg.ShowModal() != wxID_OK )
 114                 return false;
 115
 116         // Load image in whatever format it's in
 117         wxImage image;
 118         if( !image.LoadFile(dlg.GetPath()) ) {
 119                 wxMessageBox(_W("Unable to load selected photo."),
 120                         _W("Photo Load Error"),
 121                         wxICON_ERROR | wxOK, this);
 122                 return false;
 123         }
 124
 125         // Save image to memory as a JPEG
 126         wxMemoryOutputStream stream;
 127         if( !image.SaveFile(stream, wxBITMAP_TYPE_JPEG) ) {
 128                 wxMessageBox(_W("Unable to convert image to JPEG."),
 129                         _W("Photo Convert"),
 130                         wxICON_ERROR | wxOK);
 131                 return false;
 132         }
 133
 134         // Store into Contact record
 135         const char
 136             *begin = (char*)stream.GetOutputStreamBuffer()->GetBufferStart(),
 137             *end = (char*)stream.GetOutputStreamBuffer()->GetBufferEnd();
 138         int size = end - begin;
 139         m_rec.Image.assign(begin, size);
 140
 141         // Update our button
 142         LoadRecImage(MAX_IMAGE_HEIGHT);
 143         SetBitmapLabel(*m_bitmap);
 144         SetSize(m_bitmap->GetWidth(), m_bitmap->GetHeight());
 145         return true;
 146 }
 147
 148 void ContactPhotoWidget::DeletePhoto()
 149 {
 150         // zap the record
 151         m_rec.Image.clear();
 152
 153         // replace with message
 154         wxSize client = GetClientSize();
 155         int width = client.GetWidth();
 156         int height = client.GetHeight();
 157         m_bitmap.reset( new wxBitmap(width, height) );
 158         DrawNoPhoto(*m_bitmap, width, height);
 159         SetBitmapLabel(*m_bitmap);
 160 }
 161
 162 void ContactPhotoWidget::DrawNoPhoto(wxBitmap &bm, int width, int height)
 163 {
 164         wxMemoryDC dc;
 165         dc.SelectObject(bm);
 166
 167         // resources
 168         wxColour textcolour(0xa9, 0xa5, 0xa2);
 169         wxColour background(0xed, 0xec, 0xeb);
 170         wxPen pen(background);
 171         wxBrush brush(background);
 172         wxString line1(_W("No")), line2(_W("Photo"));
 173         int pointsize =wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)
 174                                 .GetPointSize();
 175         wxFont font(pointsize, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL,
 176                 wxFONTWEIGHT_NORMAL);
 177
 178         // trim fontsize so it fits
 179         wxSize line1_extent, line2_extent;
 180         do {
 181                 font.SetPointSize(pointsize--);
 182                 dc.SetFont(font);
 183                 line1_extent = dc.GetTextExtent(line1);
 184                 line2_extent = dc.GetTextExtent(line2);
 185         } while( line1_extent.GetWidth() > width ||
 186                  line2_extent.GetWidth() > width);
 187
 188         // setup DC
 189         dc.SetPen(pen);
 190         dc.SetBrush(brush);
 191         dc.SetTextForeground(textcolour);
 192         dc.SetTextBackground(background);
 193
 194         // calculate position
 195         int total_height = line1_extent.GetHeight() + line2_extent.GetHeight();
 196         int y1_start = (height - total_height) / 2;
 197         int y2_start = y1_start + line1_extent.GetHeight();
 198         int x1_start = (width - line1_extent.GetWidth()) / 2;
 199         int x2_start = (width - line2_extent.GetWidth()) / 2;
 200
 201         // draw
 202         dc.DrawRectangle(0, 0, width, height);
 203         dc.DrawText(line1, x1_start, y1_start);
 204         dc.DrawText(line2, x2_start, y2_start);
 205
 206         // cleanup
 207         dc.SetPen(wxNullPen);
 208         dc.SetBrush(wxNullBrush);
 209 }
 210