Add custom dash patterns to grid settings

include/ui/gridsettings.h

@@ -0,0 +1,99 @@
+#ifndef GRIDSETTINGS_H
+#define GRIDSETTINGS_H
+
+#include <QDialog>
+#include <QAbstractButton>
+
+class GridSettings {
+public:
+    explicit GridSettings() {};
+    ~GridSettings() {};
+
+    enum Style {
+        Solid,
+        LargeDashes,
+        SmallDashes,
+        Crosshairs,
+        Dots,
+    };
+
+    uint width = 16;
+    uint height = 16;
+    int offsetX = 0;
+    int offsetY = 0;
+    Style style = Style::Solid;
+    QColor color = Qt::black;
+    QList<qreal> getHorizontalDashPattern() const { return this->getDashPattern(this->width); }
+    QList<qreal> getVerticalDashPattern() const { return this->getDashPattern(this->height); }
+
+    static QString getStyleName(Style style);
+    static GridSettings::Style getStyleFromName(const QString &name);
+private:
+    static const QMap<Style, QString> styleToName;
+
+    QList<qreal> getCenteredDashPattern(uint length, qreal dashLength, qreal gapLength) const;
+    QList<qreal> getDashPattern(uint length) const;
+};
+
+inline bool operator==(const GridSettings &a, const GridSettings &b) {
+    return a.width == b.width
+        && a.height == b.height
+        && a.offsetX == b.offsetX
+        && a.offsetY == b.offsetY
+        && a.style == b.style
+        && a.color == b.color;
+}
+
+inline bool operator!=(const GridSettings &a, const GridSettings &b) {
+    return !(operator==(a, b));
+}
+
+
+
+namespace Ui {
+class GridSettingsDialog;
+}
+
+class GridSettingsDialog : public QDialog {
+    Q_OBJECT
+public:
+    explicit GridSettingsDialog(QWidget *parent = nullptr);
+    explicit GridSettingsDialog(GridSettings *settings, QWidget *parent = nullptr);
+    ~GridSettingsDialog();
+
+    void setSettings(const GridSettings &settings);
+    GridSettings settings() const { return *m_settings; }
+
+    void setDefaultSettings(const GridSettings &settings);
+    GridSettings defaultSettings() const { return m_defaultSettings; }
+
+signals:
+    void changedGridSettings();
+
+private:
+    Ui::GridSettingsDialog *ui;
+    GridSettings *const m_settings;
+    const GridSettings m_originalSettings;
+    GridSettings m_defaultSettings;
+    bool m_dimensionsLinked = true;
+    bool m_offsetsLinked = true;
+    bool m_ownedSettings = false;
+
+    void init();
+    void updateInput();
+    void setWidth(int value);
+    void setHeight(int value);
+    void setOffsetX(int value);
+    void setOffsetY(int value);
+
+private slots:
+    void dialogButtonClicked(QAbstractButton *button);
+    void on_spinBox_Width_valueChanged(int value);
+    void on_spinBox_Height_valueChanged(int value);
+    void on_spinBox_X_valueChanged(int value);
+    void on_spinBox_Y_valueChanged(int value);
+    void on_comboBox_Style_currentTextChanged(const QString &text);
+    void onColorChanged(QRgb color);
+};
+
+#endif // GRIDSETTINGS_H

include/ui/gridsettingsdialog.h

@@ -1,59 +0,0 @@
-#ifndef GRIDSETTINGSDIALOG_H
-#define GRIDSETTINGSDIALOG_H
-
-#include <QDialog>
-#include <QAbstractButton>
-
-#include "settings.h"
-
-namespace Ui {
-class GridSettingsDialog;
-}
-
-class GridSettingsDialog : public QDialog
-{
-    Q_OBJECT
-public:
-    explicit GridSettingsDialog(GridSettings *settings = nullptr, QWidget *parent = nullptr);
-    ~GridSettingsDialog();
-
-signals:
-    void changedGridSettings();
-
-private:
-    Ui::GridSettingsDialog *ui;
-    GridSettings *settings;
-    GridSettings originalSettings;
-    bool dimensionsLinked = true;
-    bool offsetsLinked = true;
-
-    void reset(bool force = false);
-    void setWidth(int value);
-    void setHeight(int value);
-    void setOffsetX(int value);
-    void setOffsetY(int value);
-
-private slots:
-    void dialogButtonClicked(QAbstractButton *button);
-    void on_spinBox_Width_valueChanged(int value);
-    void on_spinBox_Height_valueChanged(int value);
-    void on_spinBox_X_valueChanged(int value);
-    void on_spinBox_Y_valueChanged(int value);
-    void on_comboBox_Style_currentIndexChanged(int index);
-    void onColorChanged(QRgb color);
-};
-
-inline bool operator==(const struct GridSettings &a, const struct GridSettings &b) {
-    return a.width == b.width
-        && a.height == b.height
-        && a.offsetX == b.offsetX
-        && a.offsetY == b.offsetY
-        && a.style == b.style
-        && a.color == b.color;
-}
-
-inline bool operator!=(const struct GridSettings &a, const struct GridSettings &b) {
-    return !(operator==(a, b));
-}
-
-#endif // GRIDSETTINGSDIALOG_H