if press color button, pen color will set.

if long press color button, first change color then set.

Author: sulincix

src/SetupWidgets.cpp

@@ -144,10 +144,10 @@ void setupWidgets(){
     floatingWidget->addWidget(toolButtons[NEXT]);
     floatingWidget->addWidget(toolButtons[PAGEMENU]);
     floatingWidget->addWidget(closeButton);
-    floatingWidget->addWidget(create_color_button(QColor("#0078d7")));
-    floatingWidget->addWidget(create_color_button(QColor("#00ae4d")));
-    floatingWidget->addWidget(create_color_button(QColor("#ffc000")));
-    floatingWidget->addWidget(create_color_button(QColor("#ff0000")));
+    floatingWidget->addWidget(create_color_button(QColor("#0078d7"), false));
+    floatingWidget->addWidget(create_color_button(QColor("#00ae4d"), false));
+    floatingWidget->addWidget(create_color_button(QColor("#ffc000"), false));
+    floatingWidget->addWidget(create_color_button(QColor("#ff0000"), false));
     // disable minify if fual enabled
     toolButtons[MINIFY]->setEnabled(!get_bool("fuar"));
 
@@ -306,7 +306,7 @@ void setupWidgets(){
 
     // Color button offset is 100
     for (int i = 0; i < num_of_color; i++) {
-        toolButtons[i+100] = create_color_button(colors[i]);
+        toolButtons[i+100] = create_color_button(colors[i], true);
         gridLayout->addWidget(toolButtons[i+100], (i+1) / rowsize, (i+1) % rowsize, Qt::AlignCenter);
     }
     colorDialog->setLayout(gridLayout);

src/widgets/Button.cpp

@@ -43,14 +43,33 @@ QPushButton* create_button(int id, ButtonEvent event) {
     button->setStyleSheet(QString("background-color: none;"));
     return button;
 }
-QPushButton* create_color_button(QColor color){
+QPushButton* create_color_button(QColor fcolor, bool read_only){
     QPushButton* button = new QPushButton();
     button->setFixedSize(butsize, butsize);
+    QColor color = fcolor;
     button->setStyleSheet(QString(
         "background-color: "+color.name()+";"
         "border-radius: 12px;"
     ));
-    QObject::connect(button, &QPushButton::clicked, [=]() {
+    static size_t time = get_epoch();
+
+    QObject::connect(button, &QPushButton::pressed, [=]() mutable {
+        time = get_epoch();
+        printf("%ld %ld\n", get_epoch(), time);
+    });
+
+    QObject::connect(button, &QPushButton::released, [=]() mutable {
+        size_t diff = get_epoch() - time;
+        if(diff > 500000 && ! read_only){
+            QColor newColor =  QColorDialog::getColor(drawing->penColor, NULL, _("Select Color"));
+            if(newColor.isValid()) {
+                color = newColor;
+                button->setStyleSheet(QString(
+                    "background-color: "+color.name()+";"
+                    "border-radius: 12px;"
+                ));
+            }
+        }
         drawing->penColor = color;
         set_string("color", drawing->penColor.name());
         if(drawing->getPen() == ERASER){

src/widgets/Button.h

@@ -12,7 +12,7 @@ typedef std::function<void()> ButtonEvent;
 
 QPushButton* create_button(int id, ButtonEvent event);
 QPushButton* create_button_text(const char* icon, ButtonEvent event);
-QPushButton* create_color_button(QColor color);
+QPushButton* create_color_button(QColor color, bool read_only);
 
 void set_icon(const char* name, QPushButton* button);
 void set_icon_combined(const char* name, const char* subname, QPushButton * button);