Add OpenCV test3 and test4

Gtkmm3/gtk134_editor4/src/TextEditor.cc

@@ -1,6 +1,7 @@
 #include "TextEditor.hh"
 #include "text_types.hh"
 #include <fstream>
+#include <iostream>
 
 // Only for build in this repository
 #define text_globs supported_globs
@@ -215,12 +216,15 @@ void TextEditor::search_entry_changed()
 
     Gtk::TextIter start, end;
     // If get text to search, select the text and storage the position
-    if (buffer1->begin().forward_search(text, Gtk::TEXT_SEARCH_CASE_INSENSITIVE, start, end))
+    if (text.length() != 0)
     {
-        curr_iter_up = start;
-        curr_iter_down = end;
-        buffer1->select_range(start, end);
-        textview1.scroll_to(start);
+        if (buffer1->begin().forward_search(text, Gtk::TEXT_SEARCH_CASE_INSENSITIVE, start, end))
+        {
+            curr_iter_up = start;
+            curr_iter_down = end;
+            buffer1->select_range(start, end);
+            textview1.scroll_to(start);
+        }
     }
 }
 
@@ -231,12 +235,15 @@ void TextEditor::search_forward()
 
     Gtk::TextIter start, end;
     // Get Text to search, down to the end of text
-    if (curr_iter_down.forward_search(search_text, Gtk::TEXT_SEARCH_CASE_INSENSITIVE, start, end))
+    if (search_text.length() != 0)
     {
-        curr_iter_up = start;
-        curr_iter_down = end;
-        buffer1->select_range(start, end);
-        textview1.scroll_to(start);
+        if (curr_iter_down.forward_search(search_text, Gtk::TEXT_SEARCH_CASE_INSENSITIVE, start, end))
+        {
+            curr_iter_up = start;
+            curr_iter_down = end;
+            buffer1->select_range(start, end);
+            textview1.scroll_to(start);
+        }
     }
 }
 
@@ -247,12 +254,15 @@ void TextEditor::search_backward()
 
     Gtk::TextIter start, end;
     // Get Text to search
-    if (curr_iter_up.backward_search(search_text, Gtk::TEXT_SEARCH_CASE_INSENSITIVE, start, end))
+    if (search_text.length() != 0)
     {
-        curr_iter_up = start;
-        curr_iter_down = end;
-        buffer1->select_range(start, end);
-        textview1.scroll_to(start);
+        if (curr_iter_up.backward_search(search_text, Gtk::TEXT_SEARCH_CASE_INSENSITIVE, start, end))
+        {
+            curr_iter_up = start;
+            curr_iter_down = end;
+            buffer1->select_range(start, end);
+            textview1.scroll_to(start);
+        }
     }
 }
 
@@ -313,7 +323,8 @@ void TextEditor::infobar_response(int response)
     infobar.hide();
 }
 
-void TextEditor::about_activated(){
+void TextEditor::about_activated()
+{
     char *version, *copyright;
     // The Gtkmm Version
     version = g_strdup_printf("1.0\nRunning Against Gtkmm %d.%d.%d",
@@ -333,7 +344,7 @@ void TextEditor::about_activated(){
                           "license-type", GTK_LICENSE_GPL_3_0,
                           "logo-icon-name", "org.gtk.daleclack",
                           "title", "About Simple text editor",
-                          NULL);
+                          (char *)NULL);
     // Free memory
     g_free(version);
     g_free(copyright);

OpenCV_test/test3_imageobject/main.cpp

@@ -4,33 +4,17 @@
 using namespace cv;
 
 int main(int argc, char ** argv){
-    std::string filename, save_images;
+    // Create image objects
+    Mat image = Mat::zeros(Size(400,400), CV_8UC3);
+    image = Scalar(255, 0, 0);
+    Mat image2 = image.clone();
+    image2 = Scalar(0, 225, 0);
 
-    std::cin >> filename;
-    std::cout << "Save gray and hsv images? (Y/N)";
-    std::cin >> save_images;
-
-    // Open the image
-    Mat image, image_hsv, image_gray;
-    image = imread(filename, IMREAD_COLOR);
-    if(image.empty()){
-        std::cout << "failed to open the image";
-        return -1;
-    }
-    cvtColor(image, image_hsv, COLOR_BGR2HSV);
-    cvtColor(image, image_gray, COLOR_BGR2GRAY);
-
-    // Show the converted images
-    namedWindow("Original Image", WINDOW_FREERATIO);
-    imshow("Original Image", image);
-    namedWindow("HSV Image", WINDOW_FREERATIO);
-    imshow("HSV Image", image_hsv);
-    namedWindow("Gray Image", WINDOW_FREERATIO);
-    imshow("Gray Image", image_gray);
-
-    // Write the images
-    imwrite("image_gray.png", image_gray);
-    imwrite("image_hsv.png", image_hsv);
+    // Create windows
+    namedWindow("image1", WINDOW_AUTOSIZE);
+    namedWindow("image2", WINDOW_AUTOSIZE);
+    imshow("image1", image);
+    imshow("image2", image2);
 
     waitKey(0);
     destroyAllWindows();

OpenCV_test/test4_display/.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "C_Cpp.default.configurationProvider": "ms-vscode.cmake-tools"
+}

OpenCV_test/test4_display/CMakeLists.txt

@@ -0,0 +1,18 @@
+cmake_minimum_required(VERSION 3.0.0)
+project(OpenCV_test3 VERSION 1.0.0)
+
+#Find the opencv package
+find_package(OpenCV REQUIRED)
+
+#include directories for opencv
+include_directories(${OpenCV_INCLUDE_DIRS})
+
+add_executable(${PROJECT_NAME} main.cpp)
+
+#Add command to generate .gitignore
+add_custom_command(TARGET ${PROJECT_NAME} 
+                   COMMAND echo \"*\" > ${CMAKE_BINARY_DIR}/.gitignore
+                   COMMAND echo \"**/*\" > ${CMAKE_BINARY_DIR}/.hgignore)
+
+#Add OpenCV Libraries
+target_link_libraries(${PROJECT_NAME} ${OpenCV_LIBS})

OpenCV_test/test4_display/main.cpp

@@ -0,0 +1,41 @@
+#include <opencv2/opencv.hpp>
+#include <iostream>
+
+using namespace cv;
+
+int main(int argc, char **argv)
+{
+    // Create capture object to capture video
+    VideoCapture capture(0);
+    if (!capture.isOpened())
+    {
+        std::cout << "Can't open video device!" << std::endl;
+        return -1;
+    }
+
+    // properties
+    double rate = capture.get(CAP_PROP_FPS);
+    double width = capture.get(CAP_PROP_FRAME_WIDTH);
+    double height = capture.get(CAP_PROP_FRAME_HEIGHT);
+
+    // Information about the camera
+    std::cout << "Frame Rate = " << rate << "width = " << width << "height = " << height << std::endl;
+
+    namedWindow("Video Capture", WINDOW_NORMAL);
+
+    Mat frame;
+    while (1)
+    {
+        if (!capture.read(frame))
+        {
+            std::cout << "no video frame" << std::endl;
+            continue;
+        }
+
+        imshow("Video Capture", frame);
+        waitKey(1);
+    }
+
+    capture.release();
+    return 0;
+}