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/******************************************************************************
Copyright (C) 2014 by Hugh Bailey <obs.jim@gmail.com>
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 2 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 <http://www.gnu.org/licenses/>.
******************************************************************************/
#pragma once
static inline void GetScaleAndCenterPos(
int baseCX, int baseCY, int windowCX, int windowCY,
int &x, int &y, float &scale)
{
double windowAspect, baseAspect;
int newCX, newCY;
windowAspect = double(windowCX) / double(windowCY);
baseAspect = double(baseCX) / double(baseCY);
if (windowAspect > baseAspect) {
scale = float(windowCY) / float(baseCY);
newCX = int(double(windowCY) * baseAspect);
newCY = windowCY;
} else {
scale = float(windowCX) / float(baseCX);
newCX = windowCX;
newCY = int(float(windowCX) / baseAspect);
}
x = windowCX/2 - newCX/2;
y = windowCY/2 - newCY/2;
}
static inline void GetCenterPosFromFixedScale(
int baseCX, int baseCY, int windowCX, int windowCY,
int &x, int &y, float scale)
{
x = (float(windowCX) - float(baseCX)*scale) / 2.0f;
y = (float(windowCY) - float(baseCY)*scale) / 2.0f;
}
static inline QSize GetPixelSize(QWidget *widget)
{
return widget->size() * widget->devicePixelRatio();
}
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