Address color issues. Fix #71

src/screenoverlay/screenoverlay.cpp

@@ -143,7 +143,7 @@ void ScreenOverlay::updateMag() {
     QPointF magnifierPos = cursorPos() + QPointF(5, 5);
 
     magnifier->setPos(magnifierPos);
-    magnifier->setPixmap(utils::extend(pixmap(), pixCnt, utils::invertColor(highlight()))
+    magnifier->setPixmap(utils::extend(pixmap(), pixCnt, foreground())
                          .copy(magnifierTopLeft.x() + pixCnt, magnifierTopLeft.y() + pixCnt, pixCnt, pixCnt)
                          .scaled(110, 110));
     QPointF bottomRight = magnifierHintBox->sceneBoundingRect().bottomRight();
@@ -246,6 +246,7 @@ void ScreenOverlay::loadSettings() {
     setHighlight(settings::settings().value("highlightColor", QColor(Qt::cyan)).value<QColor>());
     setMovementPattern(settings::settings().value("movementPattern", MP_HJKL).value<MovementPattern>());
     setGrid(settings::settings().value("gridEnabled", true).toBool());
+    setForeground(settings::settings().value("foregroundColor", QColor(Qt::white)).value<QColor>());
 }
 
 void ScreenOverlay::contextMenuEvent(QGraphicsSceneContextMenuEvent *e) {
@@ -299,3 +300,12 @@ ScreenOverlay::MovementPattern ScreenOverlay::movementPattern() {
 bool ScreenOverlay::keyboardActiveSelection() {
     return selectActive;
 }
+
+QColor ScreenOverlay::foreground() {
+    return _foreground;
+}
+
+void ScreenOverlay::setForeground(QColor fg) {
+    _foreground = fg;
+    magnifierHint->setDefaultTextColor(fg);
+}

src/screenoverlay/screenoverlay.hpp

@@ -21,6 +21,8 @@ public:
     void updateMagnifierGrid();
     QColor highlight();
     void setHighlight(QColor highlight);
+    QColor foreground();
+    void setForeground(QColor foreground);
     bool grid();
     void setGrid(bool grid);
     QPointF cursorPos();
@@ -64,7 +66,7 @@ private:
     QGraphicsPolygonItem *cursorItem = nullptr;
     QList<QGraphicsRectItem *> gridRectsX;
     QList<QGraphicsRectItem *> gridRectsY;
-    QColor _highlight = Qt::cyan;
+    QColor _highlight = Qt::cyan, _foreground = Qt::white;
     bool _grid = true;
     bool selectActive = false;
     QPixmap _pixmap;

src/screenoverlay/screenoverlaysettings.cpp

@@ -11,17 +11,30 @@ ScreenOverlaySettings::ScreenOverlaySettings(ScreenOverlay *overlay, QWidget *pa
     ui->gridBox->setChecked(overlay->grid());
     ui->movementPattern->setCurrentIndex(overlay->movementPattern());
     highlight = overlay->highlight();
+    fg = overlay->foreground();
+    ui->preview->setStyleSheet(QString("background-color: %1; color: %2;").arg(highlight.name()).arg(fg.name()));
 }
 
 void ScreenOverlaySettings::on_buttonBox_accepted() {
     settings::settings().setValue("gridEnabled", ui->gridBox->isChecked());
     settings::settings().setValue("highlightColor", highlight);
+    settings::settings().setValue("foregroundColor", fg);
     settings::settings().setValue("movementPattern", ui->movementPattern->currentIndex());
     overlay->loadSettings();
 }
 
+void ScreenOverlaySettings::on_fgColor_pressed() {
+    QColor fog = QColorDialog::getColor("Foreground color", this, tr("Foreground color"));
+    if (!fog.isValid()) return;
+    fg = fog;
+    ui->preview->setStyleSheet(QString("background-color: %1; color: %2;").arg(highlight.name()).arg(fg.name()));
+}
+
 void ScreenOverlaySettings::on_setHighlight_pressed() {
-    highlight = QColorDialog::getColor(highlight, this, tr("Highlight color"));
+    QColor hl = QColorDialog::getColor(highlight, this, tr("Highlight color"));
+    if (!hl.isValid()) return;
+    highlight = hl;
+    ui->preview->setStyleSheet(QString("background-color: %1; color: %2;").arg(highlight.name()).arg(fg.name()));
 }
 
 ScreenOverlaySettings::~ScreenOverlaySettings() {

src/screenoverlay/screenoverlaysettings.hpp

@@ -18,10 +18,11 @@ public:
 private slots:
     void on_buttonBox_accepted();
     void on_setHighlight_pressed();
+    void on_fgColor_pressed();
 
 private:
     Ui::ScreenOverlaySettings *ui;
-    QColor highlight;
+    QColor fg, highlight;
     ScreenOverlay *overlay;
 };
 

src/screenoverlay/screenoverlaysettings.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>208</width>
-    <height>179</height>
+    <width>214</width>
+    <height>282</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -48,10 +48,36 @@
     </widget>
    </item>
    <item>
-    <widget class="QPushButton" name="setHighlight">
-     <property name="text">
-      <string>Set highlight color</string>
+    <widget class="QGroupBox" name="groupBox">
+     <property name="title">
+      <string>Colors</string>
      </property>
+     <layout class="QVBoxLayout" name="verticalLayout_2">
+      <item>
+       <widget class="QPushButton" name="setHighlight">
+        <property name="text">
+         <string>Set highlight color</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QPushButton" name="fgColor">
+        <property name="text">
+         <string>Set foreground color</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QLabel" name="preview">
+        <property name="text">
+         <string>Preview</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignCenter</set>
+        </property>
+       </widget>
+      </item>
+     </layout>
     </widget>
    </item>
    <item>