107 wiersze
3.1 KiB
C++
107 wiersze
3.1 KiB
C++
//
|
|
// (c)2021 by Lucky Resistor. https://luckyresistor.me/
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
//
|
|
#pragma once
|
|
|
|
|
|
#include <QtGui/QPainter>
|
|
|
|
|
|
/// The overlay painter.
|
|
///
|
|
class OverlayPainter
|
|
{
|
|
public:
|
|
/// ctor
|
|
///
|
|
OverlayPainter(
|
|
QPainter *painter,
|
|
const QRect &updateRect,
|
|
int displayFactor,
|
|
const QSize &imageSize,
|
|
const QSize &generatedSize);
|
|
|
|
public:
|
|
/// Access the painter.
|
|
///
|
|
inline QPainter *painter() const { return _p; };
|
|
|
|
/// Access the display factor.
|
|
///
|
|
inline int displayFactor() const { return _displayFactor; };
|
|
|
|
/// Access the image size.
|
|
///
|
|
inline const QSize& imageSize() const { return _imageSize; }
|
|
|
|
/// Access the generated size.
|
|
///
|
|
inline const QSize& generatedSize() const { return _generatedSize; }
|
|
|
|
/// Access the image rect.
|
|
///
|
|
inline const QRect imageRect() const { return QRect(QPoint(0, 0), imageSize()); }
|
|
|
|
/// Access the generated rect
|
|
///
|
|
inline const QRect generatedRect() const { return QRect(QPoint(0, 0), generatedSize()); }
|
|
|
|
/// Get a rectangle for a pixal area.
|
|
///
|
|
inline QRectF pixelRectF(int x, int y, int width, int height) const {
|
|
return QRectF(x * _displayFactor, y * _displayFactor, width * _displayFactor, height * _displayFactor);
|
|
}
|
|
|
|
/// Get a rectangle for a pixel rect.
|
|
///
|
|
inline QRectF pixelRectF(const QRect &rect) const {
|
|
return pixelRectF(rect.x(), rect.y(), rect.width(), rect.height());
|
|
}
|
|
|
|
/// Draw a outline around a pixel area.
|
|
///
|
|
/// @param rect The rect for the pixel area.
|
|
/// @param outlineColor The color of the outline.
|
|
/// @param outlineWidth THe width of the outline in pixels.
|
|
/// @param offset The offset of the outline. +1 = around the area, 0 in the area.
|
|
///
|
|
void drawPixelOutline(
|
|
const QRect &rect,
|
|
const QColor &outlineColor,
|
|
int outlineWidth = 1,
|
|
int offset = 0);
|
|
|
|
/// Write text into a pixel area
|
|
///
|
|
void drawPixelText(
|
|
const QRect &rect,
|
|
const QColor &textColor,
|
|
const QString &text);
|
|
|
|
/// Check if a pixel region ready for repaint.
|
|
///
|
|
bool arePixelUpdated(const QRect &rect) const;
|
|
|
|
private:
|
|
QPainter *_p; ///< The painter used.
|
|
QRect _updateRect; ///< The update rect.
|
|
int _displayFactor; ///< The display factor.
|
|
QSize _imageSize; ///< The size of the image.
|
|
QSize _generatedSize; ///< The generated size.
|
|
QFont _pixelFont; ///< The font used to draw into the pixels.
|
|
};
|
|
|