styles.cpp

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/***************************************************************************
 *   Copyright (C) 2010 Jesper Weissglas                                   *
 *   Copyright (C) 2010 by David S. Register  bdbcat@yahoo.com             *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, see <https://www.gnu.org/licenses/>. *
 **************************************************************************/
 
#include <stdlib.h>
 
#include "config.h"
 
#include <wx/wxprec.h>
 
#ifndef WX_PRECOMP
#include <wx/wx.h>
#endif
 
#include <wx/brush.h>
#include <wx/filename.h>
#include <wx/dir.h>
#include <wx/image.h>
#include <wx/log.h>
#include <wx/dcmemory.h>
 
#include "styles.h"
#include "model/svg_utils.h"
#include "color_handler.h"
#include "ocpn_platform.h"
#include "tinyxml.h"
 
#ifdef __ANDROID__
#include "androidUTIL.h"
#include "qdebug.h"
#endif
 
ocpnStyle::StyleManager* g_StyleManager;
 
using namespace ocpnStyle;
 
static void bmdump(wxBitmap bm, wxString name) {
  wxImage img = bm.ConvertToImage();
  img.SaveFile(name << ".png", wxBITMAP_TYPE_PNG);
}
 
// This function can be used to create custom bitmap blending for all platforms
// where 32 bit bitmap ops are broken. Can hopefully be removed for
// wxWidgets 3.0...
 
wxBitmap MergeBitmaps(wxBitmap back, wxBitmap front, wxSize offset) {
  //  If the front bitmap has no alpha channel, then merging will accomplish
  //  nothing So, simply return the bitmap intact However, if the bitmaps are
  //  different sizes, do the render anyway.
  wxImage im_front = front.ConvertToImage();
  if (!im_front.HasAlpha() && (front.GetWidth() == back.GetWidth()))
    return front;
 
#ifdef __WXMSW__
  //  WxWidgets still has some trouble overlaying bitmaps with transparency.
  //  This is true on wx2.8 as well as wx3.0
  //  In the specific case where the back bitmap has alpha, but the front does
  //  not, we obviously mean for the front to be drawn over the back, with 100%
  //  opacity. To do this, we need to convert the back bitmap to simple no-alpha
  //  model.
  if (!im_front.HasAlpha()) {
    wxImage im_back = back.ConvertToImage();
    back = wxBitmap(im_back);
  }
#endif
 
  wxBitmap merged(back.GetWidth(), back.GetHeight(), back.GetDepth());
 
  // Manual alpha blending for broken wxWidgets alpha bitmap support, pervasive
  // in wx2.8. And also in wx3, at least on Windows...
#if 1  
 
#if !wxCHECK_VERSION(2, 9, 4)
  merged.UseAlpha();
  back.UseAlpha();
  front.UseAlpha();
#endif
 
  wxImage im_back = back.ConvertToImage();
  wxImage im_result = back.ConvertToImage();  // Only way to make result have
                                              // alpha channel in wxW 2.8.
 
  unsigned char* presult = im_result.GetData();
  unsigned char* pback = im_back.GetData();
  unsigned char* pfront = im_front.GetData();
 
  unsigned char* afront = NULL;
  if (im_front.HasAlpha()) afront = im_front.GetAlpha();
 
  unsigned char* aback = NULL;
  if (im_back.HasAlpha()) aback = im_back.GetAlpha();
 
  unsigned char* aresult = NULL;
  if (im_result.HasAlpha()) aresult = im_result.GetAlpha();
 
  // Do alpha blending, associative version of "over" operator.
  if (presult && pback && pfront) {
    for (int i = 0; i < back.GetHeight(); i++) {
      for (int j = 0; j < back.GetWidth(); j++) {
        int fX = j - offset.x;
        int fY = i - offset.y;
 
        bool inFront = true;
        if (fX < 0 || fY < 0) inFront = false;
        if (fX >= front.GetWidth()) inFront = false;
        if (fY >= front.GetHeight()) inFront = false;
 
        if (inFront) {
          double alphaF = 1.0;
          if (afront) alphaF = (double)(*afront++) / 255.0;
          double alphaB = 1.0;
          if (aback) alphaB = (double)(*aback++) / 255.0;
          double alphaRes = alphaF + alphaB * (1.0 - alphaF);
          if (aresult) {
            unsigned char a = alphaRes * 255;
            *aresult++ = a;
          }
          unsigned char r =
              (*pfront++ * alphaF + *pback++ * alphaB * (1.0 - alphaF)) /
              alphaRes;
          *presult++ = r;
          unsigned char g =
              (*pfront++ * alphaF + *pback++ * alphaB * (1.0 - alphaF)) /
              alphaRes;
          *presult++ = g;
          unsigned char b =
              (*pfront++ * alphaF + *pback++ * alphaB * (1.0 - alphaF)) /
              alphaRes;
          *presult++ = b;
        } else {
          if (aresult && aback) *aresult++ = *aback++;
          *presult++ = *pback++;
          *presult++ = *pback++;
          *presult++ = *pback++;
        }
      }
    }
  }
  merged = wxBitmap(im_result);
#else
  wxMemoryDC mdc(merged);
  mdc.Clear();
  mdc.DrawBitmap(back, 0, 0, true);
  mdc.DrawBitmap(front, offset.x, offset.y, true);
  mdc.SelectObject(wxNullBitmap);
#endif
 
  return merged;
}
 
// The purpouse of ConvertTo24Bit is to take an icon with 32 bit depth and alpha
// channel and put it in a 24 bit deep bitmap with no alpha, that can be safely
// drawn in the crappy wxWindows implementations.
 
wxBitmap ConvertTo24Bit(wxColor bgColor, wxBitmap front) {
  if (front.GetDepth() == 24) return front;
 
#if !wxCHECK_VERSION(2, 9, 4)
  front.UseAlpha();
#endif
 
  wxImage im_front = front.ConvertToImage();
  unsigned char* pfront = im_front.GetData();
  if (!pfront) return wxNullBitmap;
 
  unsigned char* presult =
      (unsigned char*)malloc(front.GetWidth() * front.GetHeight() * 3);
  if (!presult) return wxNullBitmap;
 
  unsigned char* po_result = presult;
 
  unsigned char* afront = NULL;
  if (im_front.HasAlpha()) afront = im_front.GetAlpha();
 
  for (int i = 0; i < front.GetWidth(); i++) {
    for (int j = 0; j < front.GetHeight(); j++) {
      double alphaF = 1.0;
      if (afront) alphaF = (double)(*afront++) / 256.0;
      unsigned char r = *pfront++ * alphaF + bgColor.Red() * (1.0 - alphaF);
      *presult++ = r;
      unsigned char g = *pfront++ * alphaF + bgColor.Green() * (1.0 - alphaF);
      *presult++ = g;
      unsigned char b = *pfront++ * alphaF + bgColor.Blue() * (1.0 - alphaF);
      *presult++ = b;
    }
  }
 
  wxImage im_result(front.GetWidth(), front.GetHeight(), po_result);
 
  wxBitmap result = wxBitmap(im_result);
  return result;
}
 
bool Style::NativeToolIconExists(const wxString& name) {
  if (toolIndex.find(name) == toolIndex.end())
    return false;
  else
    return true;
}
 
// Tools and Icons perform on-demand loading and dimming of bitmaps.
// Changing color scheme invalidates all loaded bitmaps.
 
wxBitmap Style::GetIconScaled(const wxString& name, double scaleFactor,
                              bool bforceReload) {
  if (iconIndex.find(name) == iconIndex.end()) {
    wxString msg("The requested icon was not found in the style: ");
    msg += name;
    wxLogMessage(msg);
    return wxBitmap(GetToolSize().x, GetToolSize().y);  // Prevents crashing.
  }
 
  int index = iconIndex[name];  // FIXME: this operation is not const but should
                                // be, use 'find'
 
  Icon* icon = (Icon*)icons[index];
  if (icon->size.x == 0) icon->size = toolSize[currentOrientation];
 
  return GetIcon(name, icon->size.x * scaleFactor, icon->size.y * scaleFactor,
                 bforceReload);
}
 
wxBitmap Style::GetIcon(const wxString& name, int width, int height,
                        bool bforceReload) {
  if (iconIndex.find(name) == iconIndex.end()) {
    wxString msg("The requested icon was not found in the style: ");
    msg += name;
    wxLogMessage(msg);
    return wxBitmap(GetToolSize().x, GetToolSize().y);  // Prevents crashing.
  }
 
  int index = iconIndex[name];  // FIXME: this operation is not const but should
                                // be, use 'find'
 
  Icon* icon = (Icon*)icons[index];
 
  if (icon->loaded && !bforceReload) return icon->icon;
  if (icon->size.x == 0) icon->size = toolSize[currentOrientation];
 
  wxSize retSize = icon->size;
  if ((width > 0) && (height > 0)) retSize = wxSize(width, height);
 
  wxBitmap bm;
#ifdef ocpnUSE_SVG
  wxString fullFilePath = myConfigFileDir + this->sysname +
                          wxFileName::GetPathSeparator() + name + ".svg";
  if (wxFileExists(fullFilePath))
    bm = LoadSVG(fullFilePath, retSize.x, retSize.y);
  else {
#endif  // ocpnUSE_SVG
    wxRect location(icon->iconLoc, icon->size);
    bm = graphics->GetSubBitmap(location);
    if (retSize != icon->size) {
      wxImage scaled_image = bm.ConvertToImage();
      bm = wxBitmap(
          scaled_image.Scale(retSize.x, retSize.y, wxIMAGE_QUALITY_HIGH));
    }
 
#ifdef ocpnUSE_SVG
  }
#endif  // ocpnUSE_SVG
  icon->icon = SetBitmapBrightness(bm, colorscheme);
  icon->loaded = true;
  return icon->icon;
}
 
wxBitmap Style::GetToolIcon(const wxString& toolname, int iconType,
                            bool rollover, int width, int height) {
  if (toolIndex.find(toolname) == toolIndex.end()) {
    //  This will produce a flood of log messages for some PlugIns, notably
    //  WMM_PI, and GRADAR_PI
    //        wxString msg( _T("The requested tool was not found in the style:
    //        ") ); msg += toolname; wxLogMessage( msg );
    return wxBitmap(GetToolSize().x, GetToolSize().y, 1);
  }
 
  int index = toolIndex[toolname];
 
  Tool* tool = (Tool*)tools[index];
 
  wxSize size = tool->customSize;
  if (size.x == 0) size = toolSize[currentOrientation];
 
  wxSize retSize = size;
  if ((width > 0) && (height > 0)) retSize = wxSize(width, height);
 
  switch (iconType) {
    case TOOLICON_NORMAL: {
      if (tool->iconLoaded && !rollover) {
        return tool->icon;
      }
      if (tool->rolloverLoaded && rollover) return tool->rollover;
 
      wxRect location(tool->iconLoc, size);
 
      //  If rollover icon does not exist, use the defult icon
      if (rollover) {
        if ((tool->rolloverLoc.x != 0) || (tool->rolloverLoc.y != 0))
          location = wxRect(tool->rolloverLoc, size);
      }
 
      if (currentOrientation) {
        location.x -= verticalIconOffset.x;
        location.y -= verticalIconOffset.y;
      }
 
      wxBitmap bm;
#ifdef ocpnUSE_SVG
      wxString fullFilePath;
      if (rollover) {
        fullFilePath = myConfigFileDir + this->sysname +
                       wxFileName::GetPathSeparator() + toolname +
                       "_rollover.svg";
        if (!wxFileExists(fullFilePath))
          fullFilePath = myConfigFileDir + this->sysname +
                         wxFileName::GetPathSeparator() + toolname + ".svg";
      } else
        fullFilePath = myConfigFileDir + this->sysname +
                       wxFileName::GetPathSeparator() + toolname + ".svg";
      if (wxFileExists(fullFilePath))
        bm = LoadSVG(fullFilePath, retSize.x, retSize.y);
      else {
#endif  // ocpnUSE_SVG
        bm = graphics->GetSubBitmap(location);
 
        if (hasBackground) {
          bm = MergeBitmaps(GetNormalBG(), bm, wxSize(0, 0));
        } else {
          wxBitmap bg(GetToolSize().x, GetToolSize().y);
          wxMemoryDC mdc(bg);
          mdc.SetBackground(
              wxBrush(GetGlobalColor("GREY2"), wxBRUSHSTYLE_SOLID));
          mdc.Clear();
          mdc.SelectObject(wxNullBitmap);
          bm = MergeBitmaps(bg, bm, wxSize(0, 0));
        }
 
        if (retSize != size) {
          wxImage scaled_image = bm.ConvertToImage();
          bm = wxBitmap(
              scaled_image.Scale(retSize.x, retSize.y, wxIMAGE_QUALITY_HIGH));
        }
 
#ifdef ocpnUSE_SVG
      }
#endif  // ocpnUSE_SVG
 
      if (rollover) {
        tool->rollover = SetBitmapBrightness(bm, colorscheme);
        tool->rolloverLoaded = true;
        return tool->rollover;
      } else {
        if (toolname == "mob_btn") {
          double dimLevel = 1.0;
          if (colorscheme == GLOBAL_COLOR_SCHEME_DUSK)
            dimLevel = 0.5;
          else if (colorscheme == GLOBAL_COLOR_SCHEME_NIGHT)
            dimLevel = 0.5;
          tool->icon = SetBitmapBrightnessAbs(bm, dimLevel);
        } else {
          tool->icon = SetBitmapBrightness(bm, colorscheme);
        }
 
        tool->iconLoaded = true;
        return tool->icon;
      }
    }
    case TOOLICON_TOGGLED: {
      if (tool->toggledLoaded && !rollover) return tool->toggled;
      if (tool->rolloverToggledLoaded && rollover) return tool->rolloverToggled;
 
      wxRect location(tool->iconLoc, size);
      if (rollover) location = wxRect(tool->rolloverLoc, size);
      wxSize offset(0, 0);
      if (GetToolSize() != GetToggledToolSize()) {
        offset = GetToggledToolSize() - GetToolSize();
        offset /= 2;
      }
      if (currentOrientation) {
        location.x -= verticalIconOffset.x;
        location.y -= verticalIconOffset.y;
      }
      wxBitmap bm;
#ifdef ocpnUSE_SVG
      wxString fullFilePath;
      if (rollover)
        fullFilePath = myConfigFileDir + this->sysname +
                       wxFileName::GetPathSeparator() + toolname +
                       "_rollover_toggled.svg";
      else
        fullFilePath = myConfigFileDir + this->sysname +
                       wxFileName::GetPathSeparator() + toolname +
                       "_toggled.svg";
      if (wxFileExists(fullFilePath))
        bm = LoadSVG(fullFilePath, retSize.x, retSize.y);
      else {
        // Could not find a toggled SVG, so try to make one
        if (rollover)
          fullFilePath = myConfigFileDir + this->sysname +
                         wxFileName::GetPathSeparator() + toolname +
                         "_rollover.svg";
        else
          fullFilePath = myConfigFileDir + this->sysname +
                         wxFileName::GetPathSeparator() + toolname + ".svg";
 
        if (wxFileExists(fullFilePath)) {
          bm = LoadSVG(fullFilePath, retSize.x, retSize.y);
 
          wxBitmap bmBack = GetToggledBG();
          if ((bmBack.GetWidth() != retSize.x) ||
              (bmBack.GetHeight() != retSize.y)) {
            wxImage scaled_back = bmBack.ConvertToImage();
            bmBack = wxBitmap(
                scaled_back.Scale(retSize.x, retSize.y, wxIMAGE_QUALITY_HIGH));
          }
          bm = MergeBitmaps(bmBack, bm, wxSize(0, 0));
        }
      }
 
#endif  // ocpnUSE_SVG
      if (!bm.Ok()) {
        bm = graphics->GetSubBitmap(location);
        bm = MergeBitmaps(GetToggledBG(), bm, offset);
 
        if (retSize != size) {
          wxImage scaled_image = bm.ConvertToImage();
          bm = wxBitmap(
              scaled_image.Scale(retSize.x, retSize.y, wxIMAGE_QUALITY_HIGH));
        }
      }
 
      if (rollover) {
        tool->rolloverToggled = SetBitmapBrightness(bm, colorscheme);
        tool->rolloverToggledLoaded = true;
        return tool->rolloverToggled;
      } else {
        tool->toggled = SetBitmapBrightness(bm, colorscheme);
        tool->toggledLoaded = true;
        return tool->toggled;
      }
    }
    case TOOLICON_DISABLED: {
      if (tool->disabledLoaded) return tool->disabled;
      wxRect location(tool->disabledLoc, size);
 
      wxBitmap bm;
#ifdef ocpnUSE_SVG
      wxString fullFilePath = myConfigFileDir + this->sysname +
                              wxFileName::GetPathSeparator() + toolname +
                              "_disabled.svg";
      if (wxFileExists(fullFilePath))
        bm = LoadSVG(fullFilePath, retSize.x, retSize.y);
      else {
#endif  // ocpnUSE_SVG
        bm = graphics->GetSubBitmap(location);
 
        if (hasBackground) {
          bm = MergeBitmaps(GetNormalBG(), bm, wxSize(0, 0));
        }
 
        if (retSize != size) {
          wxImage scaled_image = bm.ConvertToImage();
          bm = wxBitmap(
              scaled_image.Scale(retSize.x, retSize.y, wxIMAGE_QUALITY_HIGH));
        }
#ifdef ocpnUSE_SVG
      }
#endif  // ocpnUSE_SVG
      if (currentOrientation) {
        location.x -= verticalIconOffset.x;
        location.y -= verticalIconOffset.y;
      }
      tool->disabled = SetBitmapBrightness(bm, colorscheme);
      tool->disabledLoaded = true;
      return tool->disabled;
    }
  }
  wxString msg(
      "A requested icon type for this tool was not found in the style: ");
  msg += toolname;
  wxLogMessage(msg);
  return wxBitmap(GetToolSize().x, GetToolSize().y);  // Prevents crashing.
}
 
wxBitmap Style::BuildPluginIcon(wxBitmap& bm, int iconType, double factor) {
  if (!bm.IsOk()) return wxNullBitmap;
 
  wxBitmap iconbm;
 
  switch (iconType) {
    case TOOLICON_NORMAL:
    case TOOLICON_TOGGLED: {
      if (hasBackground) {
        wxBitmap bg;
        if (iconType == TOOLICON_NORMAL)
          bg = GetNormalBG();
        else
          bg = GetToggledBG();
 
        if ((bg.GetWidth() >= bm.GetWidth()) &&
            (bg.GetHeight() >= bm.GetHeight())) {
          int w = bg.GetWidth() * factor;
          int h = bg.GetHeight() * factor;
          wxImage scaled_image = bg.ConvertToImage();
          bg = wxBitmap(scaled_image.Scale(w, h, wxIMAGE_QUALITY_HIGH));
 
          wxSize offset = wxSize(bg.GetWidth() - bm.GetWidth(),
                                 bg.GetHeight() - bm.GetHeight());
          offset /= 2;
          iconbm = MergeBitmaps(bg, bm, offset);
        } else {
          // A bit of contorted logic for non-square backgrounds...
          double factor = ((double)bm.GetHeight()) / bg.GetHeight();
          int nw = bg.GetWidth() * factor;
          int nh = bm.GetHeight();
          if (bg.GetWidth() == bg.GetHeight()) nw = nh;
          wxImage scaled_image = bg.ConvertToImage();
          bg = wxBitmap(scaled_image.Scale(nw, nh, wxIMAGE_QUALITY_HIGH));
 
          wxSize offset = wxSize(bg.GetWidth() - bm.GetWidth(),
                                 bg.GetHeight() - bm.GetHeight());
          offset /= 2;
          iconbm = MergeBitmaps(bg, bm, offset);
        }
 
      } else {
        wxBitmap bg(GetToolSize().x, GetToolSize().y);
        wxMemoryDC mdc(bg);
        wxSize offset = GetToolSize() - wxSize(bm.GetWidth(), bm.GetHeight());
        offset /= 2;
        mdc.SetBackground(wxBrush(GetGlobalColor("GREY2"), wxBRUSHSTYLE_SOLID));
        mdc.Clear();
        mdc.SelectObject(wxNullBitmap);
        iconbm = MergeBitmaps(bg, bm, offset);
      }
      break;
    }
    default:
      return wxNullBitmap;
      break;
  }
  return SetBitmapBrightness(iconbm, colorscheme);
}
 
wxBitmap Style::SetBitmapBrightness(wxBitmap& bitmap, ColorScheme cs) {
  double dimLevel;
  switch (cs) {
    case GLOBAL_COLOR_SCHEME_DUSK: {
      dimLevel = 0.8;
      break;
    }
    case GLOBAL_COLOR_SCHEME_NIGHT: {
      dimLevel = 0.5;
      break;
    }
    default: {
      return bitmap;
    }
  }
 
  return SetBitmapBrightnessAbs(bitmap, dimLevel);
}
 
wxBitmap Style::SetBitmapBrightnessAbs(wxBitmap& bitmap, double level) {
  wxImage image = bitmap.ConvertToImage();
 
  int gimg_width = image.GetWidth();
  int gimg_height = image.GetHeight();
 
  for (int iy = 0; iy < gimg_height; iy++) {
    for (int ix = 0; ix < gimg_width; ix++) {
      if (!image.IsTransparent(ix, iy, 30)) {
        wxImage::RGBValue rgb(image.GetRed(ix, iy), image.GetGreen(ix, iy),
                              image.GetBlue(ix, iy));
        wxImage::HSVValue hsv = wxImage::RGBtoHSV(rgb);
        hsv.value = hsv.value * level;
        wxImage::RGBValue nrgb = wxImage::HSVtoRGB(hsv);
        image.SetRGB(ix, iy, nrgb.red, nrgb.green, nrgb.blue);
      }
    }
  }
  return wxBitmap(image);
}
 
wxBitmap Style::GetNormalBG() {
  wxSize size = toolSize[currentOrientation];
  return graphics->GetSubBitmap(wxRect(normalBGlocation[currentOrientation].x,
                                       normalBGlocation[currentOrientation].y,
                                       size.x, size.y));
}
 
wxBitmap Style::GetActiveBG() {
  return graphics->GetSubBitmap(wxRect(activeBGlocation[currentOrientation].x,
                                       activeBGlocation[currentOrientation].y,
                                       toolSize[currentOrientation].x,
                                       toolSize[currentOrientation].y));
}
 
wxBitmap Style::GetToggledBG() {
  wxSize size = toolSize[currentOrientation];
  if (toggledBGSize[currentOrientation].x) {
    size = toggledBGSize[currentOrientation];
  }
  return graphics->GetSubBitmap(
      wxRect(toggledBGlocation[currentOrientation], size));
}
 
wxBitmap Style::GetToolbarStart() {
  wxSize size = toolbarStartSize[currentOrientation];
  if (toolbarStartSize[currentOrientation].x == 0) {
    size = toolbarStartSize[currentOrientation];
  }
  return graphics->GetSubBitmap(
      wxRect(toolbarStartLoc[currentOrientation], size));
}
 
wxBitmap Style::GetToolbarEnd() {
  wxSize size = toolbarEndSize[currentOrientation];
  if (toolbarEndSize[currentOrientation].x == 0) {
    size = toolbarEndSize[currentOrientation];
  }
  return graphics->GetSubBitmap(
      wxRect(toolbarEndLoc[currentOrientation], size));
}
 
int Style::GetToolbarCornerRadius() { return cornerRadius[currentOrientation]; }
 
void Style::DrawToolbarLineStart(wxBitmap& bmp, double scale) {
  if (!HasToolbarStart()) return;
  wxMemoryDC dc(bmp);
  wxBitmap sbmp = GetToolbarStart();
  if (fabs(scale - 1.0) > 0.01) {
    int h = sbmp.GetHeight() * scale;
    int w = sbmp.GetWidth() * scale;
    if ((h > 0) && (w > 0)) {
      wxImage scaled_image = sbmp.ConvertToImage();
      sbmp = wxBitmap(scaled_image.Scale(w, h, wxIMAGE_QUALITY_HIGH));
    }
  }
  dc.DrawBitmap(sbmp, 0, 0, true);
  dc.SelectObject(wxNullBitmap);
}
 
void Style::DrawToolbarLineEnd(wxBitmap& bmp, double scale) {
  if (!HasToolbarStart()) return;
  wxMemoryDC dc(bmp);
  wxBitmap sbmp = GetToolbarEnd();
  if (fabs(scale - 1.0) > 0.01) {
    int h = sbmp.GetHeight() * scale;
    int w = sbmp.GetWidth() * scale;
    if ((h > 0) && (w > 0)) {
      wxImage scaled_image = sbmp.ConvertToImage();
      sbmp = wxBitmap(scaled_image.Scale(w, h, wxIMAGE_QUALITY_HIGH));
    }
  }
 
  if (currentOrientation) {
    dc.DrawBitmap(sbmp, 0, bmp.GetHeight() - sbmp.GetHeight(), true);
  } else {
    dc.DrawBitmap(sbmp, bmp.GetWidth() - sbmp.GetWidth(), 0, true);
  }
  dc.SelectObject(wxNullBitmap);
}
 
void Style::SetOrientation(long orient) {
  int newOrient = 0;
  if (orient == wxTB_VERTICAL) newOrient = 1;
  if (newOrient == currentOrientation) return;
  currentOrientation = newOrient;
  Unload();
}
 
int Style::GetOrientation() { return currentOrientation; }
 
void Style::SetColorScheme(ColorScheme cs) {
  colorscheme = cs;
  Unload();
 
  if ((consoleTextBackgroundSize.x) && (consoleTextBackgroundSize.y)) {
    wxBitmap bm = graphics->GetSubBitmap(
        wxRect(consoleTextBackgroundLoc, consoleTextBackgroundSize));
 
    // The background bitmap in the icons file may be too small but it's better
    // to resize it when we use it
 
    consoleTextBackground = SetBitmapBrightness(bm, cs);
  }
}
 
void Style::Unload() {
  for (unsigned int i = 0; i < tools.Count(); i++) {
    Tool* tool = (Tool*)tools[i];
    tool->Unload();
  }
 
  for (unsigned int i = 0; i < icons.Count(); i++) {
    Icon* icon = (Icon*)icons[i];
    icon->Unload();
  }
}
 
Style::Style() {
  graphics = NULL;
  currentOrientation = 0;
  colorscheme = GLOBAL_COLOR_SCHEME_DAY;
  marginsInvisible = false;
  hasBackground = false;
  chartStatusIconWidth = 0;
  chartStatusWindowTransparent = false;
  embossHeight = 40;
  embossFont = "";
 
  //  Set compass window style defauilts
  compassMarginTop = 4;
  compassMarginRight = 0;
  compassMarginBottom = 4;
  compassMarginLeft = 4;
  compasscornerRadius = 3;
  compassXoffset = 0;
  compassYoffset = 0;
 
  for (int i = 0; i < 2; i++) {
    toolbarStartLoc[i] = wxPoint(0, 0);
    toolbarEndLoc[i] = wxPoint(0, 0);
    cornerRadius[i] = 0;
  }
}
 
Style::~Style() {
  for (unsigned int i = 0; i < tools.Count(); i++) {
    delete (Tool*)(tools[i]);
  }
  tools.Clear();
 
  for (unsigned int i = 0; i < icons.Count(); i++) {
    delete (Icon*)(icons[i]);
  }
  icons.Clear();
 
  if (graphics) delete graphics;
 
  toolIndex.clear();
  iconIndex.clear();
}
 
StyleManager::StyleManager() {
  isOK = false;
  currentStyle = NULL;
  Init(g_Platform->GetSharedDataDir() + "uidata" +
       wxFileName::GetPathSeparator());
  Init(g_Platform->GetHomeDir());
  Init(g_Platform->GetHomeDir() + ".opencpn" + wxFileName::GetPathSeparator());
  SetStyle("");
#ifdef ocpnUSE_SVG
  wxLogMessage("Using SVG Icons");
#else
  wxLogMessage("Using PNG Icons");
#endif
}
 
StyleManager::StyleManager(const wxString& configDir) {
  isOK = false;
  currentStyle = NULL;
  Init(configDir);
  SetStyle("");
}
 
StyleManager::~StyleManager() {
  for (unsigned int i = 0; i < styles.Count(); i++) {
    delete (Style*)(styles[i]);
  }
  styles.Clear();
}
 
void StyleManager::Init(const wxString& fromPath) {
  TiXmlDocument doc;
 
  if (!wxDir::Exists(fromPath)) {
    wxString msg = "No styles found at: ";
    msg << fromPath;
    wxLogMessage(msg);
    return;
  }
 
  wxDir dir(fromPath);
  if (!dir.IsOpened()) return;
 
  wxString filename;
 
  // We allow any number of styles to load from files called
  // style<something>.xml
 
  bool more = dir.GetFirst(&filename, "style*.xml", wxDIR_FILES);
 
  if (!more) {
    wxString msg = "No styles found at: ";
    msg << fromPath;
    wxLogMessage(msg);
    return;
  }
 
  bool firstFile = true;
  while (more) {
    wxString name, extension;
 
    if (!firstFile) more = dir.GetNext(&filename);
    if (!more) break;
    firstFile = false;
 
    wxString fullFilePath = fromPath + filename;
 
    if (!doc.LoadFile((const char*)fullFilePath.mb_str())) {
      wxString msg("Attempt to load styles from this file failed: ");
      msg += fullFilePath;
      wxLogMessage(msg);
      continue;
    }
 
    wxString msg("Styles loading from ");
    msg += fullFilePath;
    wxLogMessage(msg);
 
    TiXmlHandle hRoot(doc.RootElement());
 
    wxString root = wxString(doc.RootElement()->Value(), wxConvUTF8);
    if (root != "styles") {
      wxLogMessage("    StyleManager: Expected XML Root <styles> not found.");
      continue;
    }
 
    TiXmlElement* styleElem = hRoot.FirstChild().Element();
 
    for (; styleElem; styleElem = styleElem->NextSiblingElement()) {
      if (wxString(styleElem->Value(), wxConvUTF8) == "style") {
        Style* style = new Style();
        styles.Add(style);
 
        style->name = wxString(styleElem->Attribute("name"), wxConvUTF8);
        style->sysname = wxString(styleElem->Attribute("sysname"), wxConvUTF8);
        style->myConfigFileDir = fromPath;
 
        TiXmlElement* subNode = styleElem->FirstChild()->ToElement();
 
        for (; subNode; subNode = subNode->NextSiblingElement()) {
          wxString nodeType(subNode->Value(), wxConvUTF8);
 
          if (nodeType == "description") {
            style->description = wxString(subNode->GetText(), wxConvUTF8);
            continue;
          }
          if (nodeType == "chart-status-icon") {
            int w = 0;
            subNode->QueryIntAttribute("width", &w);
            style->chartStatusIconWidth = w;
            continue;
          }
          if (nodeType == "chart-status-window") {
            style->chartStatusWindowTransparent =
                wxString(subNode->Attribute("transparent"), wxConvUTF8)
                    .Lower()
                    .IsSameAs("true");
            continue;
          }
          if (nodeType == "embossed-indicators") {
            style->embossFont =
                wxString(subNode->Attribute("font"), wxConvUTF8);
            subNode->QueryIntAttribute("size", &(style->embossHeight));
            continue;
          }
          if (nodeType == "graphics-file") {
            style->graphicsFile =
                wxString(subNode->Attribute("name"), wxConvUTF8);
            isOK = true;  // If we got this far we are at least partially OK...
            continue;
          }
          if (nodeType == "active-route") {
            TiXmlHandle handle(subNode);
            TiXmlElement* tag = handle.Child("font-color", 0).ToElement();
            if (tag) {
              int r, g, b;
              tag->QueryIntAttribute("r", &r);
              tag->QueryIntAttribute("g", &g);
              tag->QueryIntAttribute("b", &b);
              style->consoleFontColor = wxColour(r, g, b);
            }
            tag = handle.Child("text-background-location", 0).ToElement();
            if (tag) {
              int x, y, w, h;
              tag->QueryIntAttribute("x", &x);
              tag->QueryIntAttribute("y", &y);
              tag->QueryIntAttribute("width", &w);
              tag->QueryIntAttribute("height", &h);
              style->consoleTextBackgroundLoc = wxPoint(x, y);
              style->consoleTextBackgroundSize = wxSize(w, h);
            }
            continue;
          }
          if (nodeType == "icons") {
            TiXmlElement* iconNode = subNode->FirstChild()->ToElement();
 
            for (; iconNode; iconNode = iconNode->NextSiblingElement()) {
              wxString nodeType(iconNode->Value(), wxConvUTF8);
              if (nodeType == "icon") {
                Icon* icon = new Icon();
                style->icons.Add(icon);
                icon->name = wxString(iconNode->Attribute("name"), wxConvUTF8);
                style->iconIndex[icon->name] = style->icons.Count() - 1;
                TiXmlHandle handle(iconNode);
                TiXmlElement* tag =
                    handle.Child("icon-location", 0).ToElement();
                if (tag) {
                  int x, y;
                  tag->QueryIntAttribute("x", &x);
                  tag->QueryIntAttribute("y", &y);
                  icon->iconLoc = wxPoint(x, y);
                }
                tag = handle.Child("size", 0).ToElement();
                if (tag) {
                  int x, y;
                  tag->QueryIntAttribute("x", &x);
                  tag->QueryIntAttribute("y", &y);
                  icon->size = wxSize(x, y);
                }
              }
            }
          }
          if (nodeType == "tools") {
            TiXmlElement* toolNode = subNode->FirstChild()->ToElement();
 
            for (; toolNode; toolNode = toolNode->NextSiblingElement()) {
              wxString nodeType(toolNode->Value(), wxConvUTF8);
 
              if (nodeType == "horizontal" || nodeType == "vertical") {
                int orientation = 0;
                if (nodeType == "vertical") orientation = 1;
 
                TiXmlElement* attrNode = toolNode->FirstChild()->ToElement();
                for (; attrNode; attrNode = attrNode->NextSiblingElement()) {
                  wxString nodeType(attrNode->Value(), wxConvUTF8);
                  if (nodeType == "separation") {
                    attrNode->QueryIntAttribute(
                        "distance", &style->toolSeparation[orientation]);
                    continue;
                  }
                  if (nodeType == "margin") {
                    attrNode->QueryIntAttribute(
                        "top", &style->toolMarginTop[orientation]);
                    attrNode->QueryIntAttribute(
                        "right", &style->toolMarginRight[orientation]);
                    attrNode->QueryIntAttribute(
                        "bottom", &style->toolMarginBottom[orientation]);
                    attrNode->QueryIntAttribute(
                        "left", &style->toolMarginLeft[orientation]);
                    wxString invis =
                        wxString(attrNode->Attribute("invisible"), wxConvUTF8);
                    style->marginsInvisible = (invis.Lower() == "true");
                    continue;
                    ;
                  }
                  if (nodeType == "toggled-location") {
                    int x, y;
                    attrNode->QueryIntAttribute("x", &x);
                    attrNode->QueryIntAttribute("y", &y);
                    style->toggledBGlocation[orientation] = wxPoint(x, y);
                    x = 0;
                    y = 0;
                    attrNode->QueryIntAttribute("width", &x);
                    attrNode->QueryIntAttribute("height", &y);
                    style->toggledBGSize[orientation] = wxSize(x, y);
                    continue;
                  }
                  if (nodeType == "toolbar-start") {
                    int x, y;
                    attrNode->QueryIntAttribute("x", &x);
                    attrNode->QueryIntAttribute("y", &y);
                    style->toolbarStartLoc[orientation] = wxPoint(x, y);
                    x = 0;
                    y = 0;
                    attrNode->QueryIntAttribute("width", &x);
                    attrNode->QueryIntAttribute("height", &y);
                    style->toolbarStartSize[orientation] = wxSize(x, y);
                    continue;
                  }
                  if (nodeType == "toolbar-end") {
                    int x, y;
                    attrNode->QueryIntAttribute("x", &x);
                    attrNode->QueryIntAttribute("y", &y);
                    style->toolbarEndLoc[orientation] = wxPoint(x, y);
                    x = 0;
                    y = 0;
                    attrNode->QueryIntAttribute("width", &x);
                    attrNode->QueryIntAttribute("height", &y);
                    style->toolbarEndSize[orientation] = wxSize(x, y);
                    continue;
                  }
                  if (nodeType == "toolbar-corners") {
                    int r;
                    attrNode->QueryIntAttribute("radius", &r);
                    style->cornerRadius[orientation] = r;
                    continue;
                  }
                  if (nodeType == "background-location") {
                    int x, y;
                    attrNode->QueryIntAttribute("x", &x);
                    attrNode->QueryIntAttribute("y", &y);
                    style->normalBGlocation[orientation] = wxPoint(x, y);
                    style->HasBackground(true);
                    continue;
                  }
                  if (nodeType == "active-location") {
                    int x, y;
                    attrNode->QueryIntAttribute("x", &x);
                    attrNode->QueryIntAttribute("y", &y);
                    style->activeBGlocation[orientation] = wxPoint(x, y);
                    continue;
                  }
                  if (nodeType == "size") {
                    int x, y;
                    attrNode->QueryIntAttribute("x", &x);
                    attrNode->QueryIntAttribute("y", &y);
                    style->toolSize[orientation] = wxSize(x, y);
                    continue;
                  }
                  if (nodeType == "icon-offset") {
                    int x, y;
                    attrNode->QueryIntAttribute("x", &x);
                    attrNode->QueryIntAttribute("y", &y);
                    style->verticalIconOffset = wxSize(x, y);
                    continue;
                  }
                }
                continue;
              }
              if (nodeType == "compass") {
                TiXmlElement* attrNode = toolNode->FirstChild()->ToElement();
                for (; attrNode; attrNode = attrNode->NextSiblingElement()) {
                  wxString nodeType(attrNode->Value(), wxConvUTF8);
                  if (nodeType == "margin") {
                    attrNode->QueryIntAttribute("top",
                                                &style->compassMarginTop);
                    attrNode->QueryIntAttribute("right",
                                                &style->compassMarginRight);
                    attrNode->QueryIntAttribute("bottom",
                                                &style->compassMarginBottom);
                    attrNode->QueryIntAttribute("left",
                                                &style->compassMarginLeft);
                    continue;
                  }
                  if (nodeType == "compass-corners") {
                    int r;
                    attrNode->QueryIntAttribute("radius", &r);
                    style->compasscornerRadius = r;
                    continue;
                  }
                  if (nodeType == "offset") {
                    attrNode->QueryIntAttribute("x", &style->compassXoffset);
                    attrNode->QueryIntAttribute("y", &style->compassYoffset);
                    continue;
                  }
                }
              }
 
              if (nodeType == "tool") {
                Tool* tool = new Tool();
                style->tools.Add(tool);
                tool->name = wxString(toolNode->Attribute("name"), wxConvUTF8);
                style->toolIndex[tool->name] = style->tools.Count() - 1;
                TiXmlHandle toolHandle(toolNode);
                TiXmlElement* toolTag =
                    toolHandle.Child("icon-location", 0).ToElement();
                if (toolTag) {
                  int x, y;
                  toolTag->QueryIntAttribute("x", &x);
                  toolTag->QueryIntAttribute("y", &y);
                  tool->iconLoc = wxPoint(x, y);
                }
                toolTag = toolHandle.Child("rollover-location", 0).ToElement();
                if (toolTag) {
                  int x, y;
                  toolTag->QueryIntAttribute("x", &x);
                  toolTag->QueryIntAttribute("y", &y);
                  tool->rolloverLoc = wxPoint(x, y);
                }
                toolTag = toolHandle.Child("disabled-location", 0).ToElement();
                if (toolTag) {
                  int x, y;
                  toolTag->QueryIntAttribute("x", &x);
                  toolTag->QueryIntAttribute("y", &y);
                  tool->disabledLoc = wxPoint(x, y);
                }
                toolTag = toolHandle.Child("size", 0).ToElement();
                if (toolTag) {
                  int x, y;
                  toolTag->QueryIntAttribute("x", &x);
                  toolTag->QueryIntAttribute("y", &y);
                  tool->customSize = wxSize(x, y);
                }
                continue;
              }
            }
            continue;
          }
        }
      }
    }
  }
}
 
void StyleManager::SetStyle(wxString name) {
  Style* style = NULL;
  bool ok = true;
  if (currentStyle)
    currentStyle->Unload();
  else
    ok = false;
 
  bool selectFirst = false;
 
  // Verify the named style exists
  //  If not, just use the "first" style
  bool bstyleFound = false;
 
  for (unsigned int i = 0; i < styles.Count(); i++) {
    style = (Style*)(styles.Item(i));
    if (style->name == name) {
      bstyleFound = true;
      break;
    }
  }
 
  if ((name.Length() == 0) || !bstyleFound) selectFirst = true;
 
  for (unsigned int i = 0; i < styles.Count(); i++) {
    style = (Style*)(styles[i]);
    if (style->name == name || selectFirst) {
      if (style->graphics) {
        currentStyle = style;
        ok = true;
        break;
      }
 
      wxString fullFilePath = style->myConfigFileDir +
                              wxFileName::GetPathSeparator() +
                              style->graphicsFile;
 
      if (!wxFileName::FileExists(fullFilePath)) {
        wxString msg("Styles Graphics File not found: ");
        msg += fullFilePath;
        wxLogMessage(msg);
        ok = false;
        if (selectFirst) continue;
        break;
      }
 
      wxImage img;  // Only image does PNG LoadFile properly on GTK.
 
      if (!img.LoadFile(fullFilePath, wxBITMAP_TYPE_PNG)) {
        wxString msg("Styles Graphics File failed to load: ");
        msg += fullFilePath;
        wxLogMessage(msg);
        ok = false;
        break;
      }
      style->graphics = new wxBitmap(img);
      currentStyle = style;
      ok = true;
      break;
    }
  }
 
  if (!ok || !currentStyle->graphics) {
    wxString msg("The requested style was not found: ");
    msg += name;
    wxLogMessage(msg);
    return;
  }
 
  if (currentStyle) {
    if ((currentStyle->consoleTextBackgroundSize.x) &&
        (currentStyle->consoleTextBackgroundSize.y)) {
      currentStyle->consoleTextBackground =
          currentStyle->graphics->GetSubBitmap(
              wxRect(currentStyle->consoleTextBackgroundLoc,
                     currentStyle->consoleTextBackgroundSize));
    }
  }
 
  if (currentStyle) nextInvocationStyle = currentStyle->name;
 
  return;
}
 
Style* StyleManager::GetCurrentStyle() { return currentStyle; }