mirror of
https://github.com/obsproject/obs-studio.git
synced 2024-07-14 23:34:08 +00:00
3b616823a1
Adds preview scaling to the right-click context menu for the preview pane. This allows the ability to, for example, zoom the preview and edit the preview 1:1 (canvas/base resolution). This was a missing parity feature. Additionally, also allows scaling to the "output/scaled" resolution the program is set to. When the preview is in scale mode and is the focused widget, you can hold space and drag with left click to change the zoomed position. (Notes added by Jim) Closes jp9000/obs-studio#687
56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
/******************************************************************************
|
|
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();
|
|
}
|