vtkKWCanvas.cxx

/*=========================================================================

Copyright (c) 1998-2003 Kitware Inc. 469 Clifton Corporate Parkway,
Clifton Park, NY, 12065, USA.
All rights reserved.

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 * Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.

 * Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
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 * Neither the name of Kitware nor the names of any contributors may be used
   to endorse or promote products derived from this software without specific
   prior written permission.

 * Modified source versions must be plainly marked as such, and must not be
   misrepresented as being the original software.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

=========================================================================*/
#include "vtkKWCanvas.h"
#include "vtkObjectFactory.h"
#include "vtkKWOptions.h"
#include "vtkColorTransferFunction.h"

#include <vtksys/SystemTools.hxx>
#include <vtksys/ios/sstream>
#include <vtksys/stl/string>

//----------------------------------------------------------------------------
vtkStandardNewMacro( vtkKWCanvas );
vtkCxxRevisionMacro(vtkKWCanvas, "$Revision: 1.16 $");

//----------------------------------------------------------------------------
void vtkKWCanvas::CreateWidget()
{
  // Call the superclass to create the widget and set the appropriate flags

  if (!vtkKWWidget::CreateSpecificTkWidget(this, 
        "canvas", "-highlightthickness 0"))
    {
    vtkErrorMacro("Failed creating widget " << this->GetClassName());
    return;
    }
}

//----------------------------------------------------------------------------
void vtkKWCanvas::SetWidth(int width)
{
  this->SetConfigurationOptionAsInt("-width", width);
}

//----------------------------------------------------------------------------
int vtkKWCanvas::GetWidth()
{
  return this->GetConfigurationOptionAsInt("-width");
}

//----------------------------------------------------------------------------
void vtkKWCanvas::SetHeight(int height)
{
  this->SetConfigurationOptionAsInt("-height", height);
}

//----------------------------------------------------------------------------
int vtkKWCanvas::GetHeight()
{
  return this->GetConfigurationOptionAsInt("-height");
}

//----------------------------------------------------------------------------
void vtkKWCanvas::GetBackgroundColor(double *r, double *g, double *b)
{
  this->GetConfigurationOptionAsColor("-background", r, g, b);
}

//----------------------------------------------------------------------------
double* vtkKWCanvas::GetBackgroundColor()
{
  return this->GetConfigurationOptionAsColor("-background");
}

//----------------------------------------------------------------------------
void vtkKWCanvas::SetBackgroundColor(double r, double g, double b)
{
  this->SetConfigurationOptionAsColor("-background", r, g, b);
}

//----------------------------------------------------------------------------
void vtkKWCanvas::SetHighlightThickness(int width)
{
  this->SetConfigurationOptionAsInt("-highlightthickness", width);
}

//----------------------------------------------------------------------------
int vtkKWCanvas::GetHighlightThickness()
{
  return this->GetConfigurationOptionAsInt("-highlightthickness");
}

//----------------------------------------------------------------------------
void vtkKWCanvas::SetBorderWidth(int width)
{
  this->SetConfigurationOptionAsInt("-bd", width);
}

//----------------------------------------------------------------------------
int vtkKWCanvas::GetBorderWidth()
{
  return this->GetConfigurationOptionAsInt("-bd");
}

//----------------------------------------------------------------------------
void vtkKWCanvas::SetRelief(int relief)
{
  this->SetConfigurationOption(
    "-relief", vtkKWOptions::GetReliefAsTkOptionValue(relief));
}

void vtkKWCanvas::SetReliefToRaised()     
{ 
  this->SetRelief(vtkKWOptions::ReliefRaised); 
};
void vtkKWCanvas::SetReliefToSunken() 
{ 
  this->SetRelief(vtkKWOptions::ReliefSunken); 
};
void vtkKWCanvas::SetReliefToFlat() 
{ 
  this->SetRelief(vtkKWOptions::ReliefFlat); 
};
void vtkKWCanvas::SetReliefToRidge() 
{ 
  this->SetRelief(vtkKWOptions::ReliefRidge); 
};
void vtkKWCanvas::SetReliefToSolid() 
{ 
  this->SetRelief(vtkKWOptions::ReliefSolid); 
};
void vtkKWCanvas::SetReliefToGroove() 
{ 
  this->SetRelief(vtkKWOptions::ReliefGroove); 
};

//----------------------------------------------------------------------------
int vtkKWCanvas::GetRelief()
{
  return vtkKWOptions::GetReliefFromTkOptionValue(
    this->GetConfigurationOption("-relief"));
}

//----------------------------------------------------------------------------
void vtkKWCanvas::UpdateEnableState()
{
  this->Superclass::UpdateEnableState();

  this->SetState(this->GetEnabled());
}

//----------------------------------------------------------------------------
int vtkKWCanvas::AddGradient(vtkColorTransferFunction *ctf, 
                             int x1, int y1, int x2, int y2,
                             const char *tag,
                             int horizontal)
{
  if (!ctf || !this->IsCreated())
    {
    return 0;
    }

  int temp;
  if (x1 > x2)
    {
    temp = x1;
    x1 = x2;
    x2 = temp;
    }
  if (y1 > y2)
    {
    temp = y1;
    y1 = y2;
    y2 = temp;
    }

  int width = x2 - x1 + 1;
  int height = y2 - y1 + 1;

  const unsigned char *rgb_table = 
    ctf->GetTable(ctf->GetRange()[0], ctf->GetRange()[1], 
                  horizontal ? width : height);

  vtksys_ios::ostringstream tk_cmd;

  const char *wname = this->GetWidgetName();
  char rgb[10];

  vtksys_stl::string extra;
  if (tag)
    {
    extra = extra + " -tags {" + tag + "} ";
    }
  extra += " -fill #";

  if (horizontal)
    {
    while (x1 <= x2)
      {
      sprintf(rgb, "%02x%02x%02x", 
              (int)rgb_table[0], (int)rgb_table[1], (int)rgb_table[2]);
      rgb_table += 3;
      tk_cmd << wname << " create line " 
             << x1 << " " << y1 << " " << x1 << " " << y2 
             << extra.c_str() << rgb << endl;
      ++x1;
      }
    }
  else
    {
    while (y1 <= y2)
      {
      sprintf(rgb, "%02x%02x%02x", 
              (int)rgb_table[0], (int)rgb_table[1], (int)rgb_table[2]);
      rgb_table += 3;
      tk_cmd << wname << " create line " 
             << x1 << " " << y1 << " " << x2 << " " << y1
             << extra.c_str() << rgb << endl;
      ++y1;
      }
    }

  this->Script(tk_cmd.str().c_str());
  
  return 1;
}

//----------------------------------------------------------------------------
int vtkKWCanvas::AddHorizontalGradient(vtkColorTransferFunction *ctf, 
                                       int x1, int y1, int x2, int y2,
                                       const char *tag)
{
  return this->AddGradient(ctf, x1, y1, x2, y2, tag, 1);
}

//----------------------------------------------------------------------------
int vtkKWCanvas::AddHorizontalRGBGradient(double r1, double g1, double b1, 
                                          double r2, double g2, double b2, 
                                          int x1, int y1, int x2, int y2,
                                          const char *tag)
{
  vtkColorTransferFunction *ctf = vtkColorTransferFunction::New();
  ctf->SetColorSpaceToRGB();
  ctf->AddRGBPoint(0.0, r1, g1, b1);
  ctf->AddRGBPoint(1.0, r2, g2, b2);
  int res = this->AddHorizontalGradient(ctf, x1, y1, x2, y2, tag);
  ctf->Delete();
  return res;
}

//----------------------------------------------------------------------------
int vtkKWCanvas::AddVerticalGradient(vtkColorTransferFunction *ctf, 
                                       int x1, int y1, int x2, int y2,
                                       const char *tag)
{
  return this->AddGradient(ctf, x1, y1, x2, y2, tag, 0);
}

//----------------------------------------------------------------------------
int vtkKWCanvas::AddVerticalRGBGradient(double r1, double g1, double b1, 
                                          double r2, double g2, double b2, 
                                          int x1, int y1, int x2, int y2,
                                          const char *tag)
{
  vtkColorTransferFunction *ctf = vtkColorTransferFunction::New();
  ctf->SetColorSpaceToRGB();
  ctf->AddRGBPoint(0.0, r1, g1, b1);
  ctf->AddRGBPoint(1.0, r2, g2, b2);
  int res = this->AddVerticalGradient(ctf, x1, y1, x2, y2, tag);
  ctf->Delete();
  return res;
}

//----------------------------------------------------------------------------
void vtkKWCanvas::SetCanvasBinding(
  const char *tag, const char *event, vtkObject *object, const char *method)
{
  if (this->IsCreated())
    {
    char *command = NULL;
    this->SetObjectMethodCommand(&command, object, method);
    this->Script("%s bind %s %s {%s}", 
                 this->GetWidgetName(), tag, event, command);
    delete [] command;
    }
}

//----------------------------------------------------------------------------
void vtkKWCanvas::SetCanvasBinding(
  const char *tag, const char *event, const char *command)
{
  this->SetCanvasBinding(tag, event, NULL, command);
}

//----------------------------------------------------------------------------
const char* vtkKWCanvas::GetCanvasBinding(const char *tag, const char *event)
{
  if (this->IsCreated())
    {
    return this->Script("%s bind %s %s", this->GetWidgetName(), tag, event);
    }
  return NULL;
}

//----------------------------------------------------------------------------
void vtkKWCanvas::AddCanvasBinding(
  const char *tag, const char *event, vtkObject *object, const char *method)
{
  if (this->IsCreated())
    {
    char *command = NULL;
    this->SetObjectMethodCommand(&command, object, method);
    this->Script("%s bind %s %s {+%s}", 
                 this->GetWidgetName(), tag, event, command);
    delete [] command;
    }
}

//----------------------------------------------------------------------------
void vtkKWCanvas::AddCanvasBinding(
  const char *tag, const char *event, const char *command)
{
  this->AddCanvasBinding(tag, event, NULL, command);
}

//----------------------------------------------------------------------------
void vtkKWCanvas::RemoveCanvasBinding(
  const char *tag, const char *event, vtkObject *object, const char *method)
{
  if (this->IsCreated())
    {
    char *command = NULL;
    this->SetObjectMethodCommand(&command, object, method);

    // Retrieve the bindings, remove the command, re-assign

    vtksys_stl::string bindings(
      this->Script("%s bind %s %s", this->GetWidgetName(), tag, event));

    vtksys::SystemTools::ReplaceString(bindings, command, "");
  
    this->Script(
      "%s bind %s %s {%s}", 
      this->GetWidgetName(), tag, event, bindings.c_str());
    delete [] command;
    }
}

//----------------------------------------------------------------------------
void vtkKWCanvas::RemoveCanvasBinding(const char *tag, const char *event)
{
  if (this->IsCreated())
    {
    this->Script("%s bind %s %s {}", 
                 this->GetWidgetName(), tag, event);
    }
}

//----------------------------------------------------------------------------
int vtkKWCanvas::HasTag(const char *tag)
{
  if (!this->IsCreated() || !tag || !*tag)
    {
    return 0;
    }
  
  return atoi(this->Script("llength [%s find withtag %s]", 
                           this->GetWidgetName(), tag));
}

//----------------------------------------------------------------------------
void vtkKWCanvas::DeleteTag(const char *tag)
{
  if (!this->IsCreated() || !tag || !*tag)
    {
    return;
    }
  
  this->Script("%s delete %s", this->GetWidgetName(), tag);
}

//----------------------------------------------------------------------------
void vtkKWCanvas::PrintSelf(ostream& os, vtkIndent indent)
{
  this->Superclass::PrintSelf(os,indent);
}