/******************************************************************************
*
* Copyright (c) 2017 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer.
*
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* TextDrawing.cpp
*
*****************************************************************************/
//
#include <es++/gtkmm-3.0/Application.h>
#include <es++/gtkmm-3.0/FileOpenDialog.h>
#include <es++/gtkmm-3.0/PushButton.h>
#include <es++/opencv-4.0/OpenCVMainView.h>
#include <es++/opencv-4.0/OpenCVImageView.h>
using namespace Gtk;
namespace Es {
class MainView :public Es::OpenCVMainView {
private:
//Inner class start
class SimpleView: public OpenCVImageView {
private:
cv::Mat sharpenedImage;
public:
SimpleView()
{
}
void loadImage(const std::string& filename,
int imageLoadingFlag= CV_LOAD_IMAGE_COLOR,
int scaling_ratio=100)
{
try {
OpenCVImageView::loadImage(filename, imageLoadingFlag,
scaling_ratio);
cv::Mat& original_image = getOriginalImage();
sharpenedImage = original_image.clone();
int ksize = 7;
int sigma = 11;
sharpen(ksize, sigma);
drawText(sharpenedImage, "Hello world");
scaleImage(sharpenedImage, 100);
refresh();
} catch (Es::Exception& ex) {
caught(ex);
}
}
void drawText(cv::Mat& image, const char* string)
{
std::string text = string;
int fontFace = CV_FONT_HERSHEY_COMPLEX ;//FONT_HERSHEY_SCRIPT_SIMPLEX;
double fontScale = 2;
int thickness = 2;
int baseline = 0;
cv::Size textSize = getTextSize(text, fontFace,
fontScale, thickness, &baseline);
baseline += thickness;
cv::Point textOrg((image.cols - textSize.width)/2,
(image.rows + textSize.height)/2);
putText(image, text, textOrg, fontFace, fontScale,
Scalar::all(255), thickness, 8);
}
void sharpen(int ksize, int sigma)
{
cv::Mat& original_image = getOriginalImage();
ksize = (ksize/2)*2 + 1;
//void GaussianBlur(const Mat& src, Mat& dst, Size ksize,
// double sigmaX,
// double sigmaY = 0,
// int borderType = BORDER_DEFAULT)
cv::Mat newImage = cv::Mat::zeros(original_image.size(), original_image.type() );
cv::GaussianBlur(original_image, newImage, cv::Size(ksize, ksize),
(double)sigma, //sigmaX,
(double)sigma, //sigmaY
BORDER_DEFAULT);
// void addWeighted(InputArray src1, double alpha, InputArray src2,
// double beta, double gamma, OutputArray dst, int dtype=-1)
double alpha = 2.5;
double beta = 1.0 - alpha;
cv::addWeighted(original_image, alpha, newImage, beta, 0.0, newImage);
sharpenedImage = newImage;
}
};
//Inner class end
private:
Es::HorizontalLayout center_layout;
SimpleView image_view;
Es::VerticalLayout control_pane;
Es::PushButton quit;
int loading_flag;
static const int CONTROLPANE_WIDTH = 160;
Es::FileOpenDialog file_dialog;
public:
//////////////////////////////////////////////
//Constructor
//
MainView(Es::Application& applet,
std::string& name,
Es::Args& args)
:OpenCVMainView(applet, name, args)
,file_dialog(*this, FileOpenDialog::IMAGE_FILES)
{
int w = (int)args.get(XmNwidth);
int h = (int)args.get(XmNheight);
int ww = w - CONTROLPANE_WIDTH;
Es::MainLayout& main_layout = get_main_layout();
const std::string filename = "../../images/earth.png";
set_filenamed_title(filename);
main_layout.pack_start(center_layout);
image_view.set_size_request(ww, h);
control_pane.set_size_request(CONTROLPANE_WIDTH, h);
center_layout.pack_start(image_view);
center_layout.pack_start(control_pane, FALSE, FALSE, 0);
quit.set_label("Quit");
quit.set_clicked_callback(
sigc::mem_fun(*this, &MainView::quit_clicked) );
control_pane.pack_start(quit, Gtk::PACK_SHRINK);
loading_flag = IMREAD_COLOR;
image_view.loadImage(filename, loading_flag);
show_all();
}
void quit_clicked()
{
file_quit();
}
void file_open()
{
int rc = file_dialog.popup();
if (rc == Gtk::RESPONSE_OK) {
const std::string filename = file_dialog.get_filename();
set_filenamed_title(filename);
image_view.loadImage(filename, loading_flag);
}
}
};
}
int main(int argc, char** argv)
{
Es::Environment env;
try {
std::string name = argv[0];
Es::Application applet(argc, argv);
Es::Args args;
args.set(XmNx, 20);
args.set(XmNy, 40);
args.set(XmNwidth, 640);
args.set(XmNheight, 400);
Es::MainView mainv(applet, name, args);
mainv.show();
applet.run(mainv);
} catch (Es::Exception& ex) {
caught(ex);
} catch (...) {
printf("Get exception \n");
}
return 0;
}