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/* this file is based on from libgnomekbd/libgnomekbd/gkbd-keyboard-drawing.c */
#ifndef KEYBOARDLAYOUTWIDGET_H
#define KEYBOARDLAYOUTWIDGET_H
#include <QPainterPath>
#include <QWidget>
#include <QMap>
#include <QAbstractNativeEventFilter>
class QPainter;
struct Doodad;
struct _XkbDesc;
struct _XkbShapeDoodad;
union _XkbDoodad;
typedef enum {
KEYBOARD_DRAWING_ITEM_TYPE_INVALID = 0,
KEYBOARD_DRAWING_ITEM_TYPE_KEY,
KEYBOARD_DRAWING_ITEM_TYPE_KEY_EXTRA,
KEYBOARD_DRAWING_ITEM_TYPE_DOODAD
} KeyboardDrawingItemType;
typedef enum {
KEYBOARD_DRAWING_POS_TOPLEFT,
KEYBOARD_DRAWING_POS_TOPRIGHT,
KEYBOARD_DRAWING_POS_BOTTOMLEFT,
KEYBOARD_DRAWING_POS_BOTTOMRIGHT,
KEYBOARD_DRAWING_POS_TOTAL,
KEYBOARD_DRAWING_POS_FIRST =
KEYBOARD_DRAWING_POS_TOPLEFT,
KEYBOARD_DRAWING_POS_LAST =
KEYBOARD_DRAWING_POS_BOTTOMRIGHT
} KeyboardDrawingGroupLevelPosition;
struct DrawingItem {
DrawingItem() :
type(KEYBOARD_DRAWING_ITEM_TYPE_INVALID),
originX(0),
originY(0),
angle(0),
priority(0) { }
virtual ~DrawingItem() {}
KeyboardDrawingItemType type;
int originX;
int originY;
int angle;
uint priority;
};
struct Doodad : public DrawingItem{
Doodad() : doodad(0), on(0) { }
union _XkbDoodad* doodad;
int on;
};
struct DrawingKey : public DrawingItem{
DrawingKey() : xkbkey(0), pressed(false), keycode(0) { }
struct _XkbKey *xkbkey;
bool pressed;
uint keycode;
};
struct KeyboardDrawingGroupLevel {
int group;
int level;
};
class KeyboardLayoutWidget : public QWidget {
Q_OBJECT
public:
explicit KeyboardLayoutWidget(QWidget* parent = 0);
virtual ~KeyboardLayoutWidget();
void setGroup(int group);
void setKeyboardLayout(const QString& layout, const QString& variant);
void generatePixmap(bool force = false);
protected:
void keyPressEvent(QKeyEvent * event) override;
void keyReleaseEvent(QKeyEvent * event) override;
void paintEvent(QPaintEvent* event) override;
void init();
void alloc();
void release();
void initInicatorDoodad(union _XkbDoodad* xkbdoodad, Doodad& doodad);
uint findKeycode(const char* keyName);
void rotateRectangle(int origin_x,
int origin_y,
int x,
int y,
int angle,
int& rotated_x, int& rotated_y);
bool parseXkbColorSpec(char* colorspec, QColor& color);
void initColors();
void focusOutEvent(QFocusEvent* event) override;
void drawKey(QPainter* painter, DrawingKey* item);
void drawDoodad(QPainter* painter, Doodad* doodad);
void drawKeyLabel(QPainter* painter, uint keycode, int angle, int arg4, int originY, int x2, int y2, bool pressed);
void drawKeyLabelHelper(QPainter* painter, const QString &text, int angle, int glp, int end_glp, int x, int y, int width, int height, int padding, bool is_pressed);
void drawShapeDoodad(QPainter* painter, Doodad* doodad, struct _XkbShapeDoodad* shapeDoodad);
void drawTextDoodad(QPainter* painter, Doodad* doodad, struct _XkbTextDoodad* textDoodad);
void drawIndicatorDoodad(QPainter* painter, Doodad* doodad, struct _XkbIndicatorDoodad* indicatorDoodad);
int calcShapeOriginOffsetX(struct _XkbOutline* outline);
void drawOutline(QPainter* painter, struct _XkbOutline* outline, QColor color, int angle, int originX, int originY);
void drawRectangle(QPainter* painter, QColor color, int angle, int xkb_x, int xkb_y, int xkb_width, int xkb_height, unsigned int radius);
void drawPolygon(QPainter* painter, QColor color, int originX, int originY, struct _XkbPoint* points, unsigned int num_points, unsigned int radius);
void rotateCoordinate(int originX, int originY, int x, int y, int angle, int* rotated_x, int* rotated_y);
int xkbToPixmapCoord (int n);
double xkbToPixmapDouble (double d);
void roundedPolygon(QPainter* painter, bool filled, double radius, const QVector< QPointF >& points);
void drawCurveRectangle(QPainter* painter, bool filled, QColor color, int x, int y, int width, int height, double radius);
void roundedCorner (QPainterPath& path, QPointF b, QPointF c, double radius);
void resizeEvent(QResizeEvent* event) override;
void setKeyboard(struct _XkbComponentNames* xkbDesc);
private:
void keyEvent(QKeyEvent *keyEvent);
QString keySymToString(unsigned long keysym);
QList<DrawingItem*> keyboardItems;
DrawingKey* keys;
QList<Doodad*> physicalIndicators;
struct _XkbDesc* xkb;
unsigned int l3mod;
int physicalIndicatorsSize;
bool xkbOnDisplay;
QColor* colors;
QPixmap image;
double ratio;
KeyboardDrawingGroupLevel** groupLevels;
bool trackModifiers;
int mods;
QMap<uint, uint> deadMap;
};
#endif
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