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obs-studio/UI/preview-controls.cpp
Warchamp7 81fa608cde UI: Add preview scrollbars
This adds scrollbars to the preview, so users can move around the
preview without using the spacebar + clicking.

Co-Authored-By: Clayton Groeneveld <19962531+cg2121@users.noreply.github.com>
2024-08-18 03:18:03 +02:00

138 lines
3.5 KiB
C++

/******************************************************************************
Copyright (C) 2024 by Taylor Giampaolo <warchamp7@obsproject.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/>.
******************************************************************************/
#include "preview-controls.hpp"
#include <obs-app.hpp>
/* Preview Scale Label */
void OBSPreviewScalingLabel::PreviewScaleChanged(float scale)
{
previewScale = scale;
UpdateScaleLabel();
}
void OBSPreviewScalingLabel::UpdateScaleLabel()
{
float previewScalePercent = floor(100.0f * previewScale);
setText(QString::number(previewScalePercent) + "%");
}
/* Preview Scaling ComboBox */
void OBSPreviewScalingComboBox::PreviewFixedScalingChanged(bool fixed)
{
if (fixedScaling == fixed)
return;
fixedScaling = fixed;
UpdateSelection();
}
void OBSPreviewScalingComboBox::CanvasResized(uint32_t width, uint32_t height)
{
SetCanvasSize(width, height);
UpdateCanvasText();
}
void OBSPreviewScalingComboBox::OutputResized(uint32_t width, uint32_t height)
{
SetOutputSize(width, height);
bool canvasMatchesOutput = output_width == canvas_width &&
output_height == canvas_height;
SetScaleOutputEnabled(!canvasMatchesOutput);
UpdateOutputText();
}
void OBSPreviewScalingComboBox::PreviewScaleChanged(float scale)
{
previewScale = scale;
if (fixedScaling) {
UpdateSelection();
UpdateAllText();
} else {
UpdateScaledText();
}
}
void OBSPreviewScalingComboBox::SetScaleOutputEnabled(bool show)
{
if (scaleOutputEnabled == show)
return;
scaleOutputEnabled = show;
if (scaleOutputEnabled) {
addItem(QTStr("Basic.MainMenu.Edit.Scale.Output"));
} else {
removeItem(2);
}
}
void OBSPreviewScalingComboBox::UpdateAllText()
{
UpdateCanvasText();
UpdateOutputText();
UpdateScaledText();
}
void OBSPreviewScalingComboBox::UpdateCanvasText()
{
QString text = QTStr("Basic.MainMenu.Edit.Scale.Canvas");
text = text.arg(QString::number(canvas_width),
QString::number(canvas_height));
setItemText(1, text);
}
void OBSPreviewScalingComboBox::UpdateOutputText()
{
if (scaleOutputEnabled) {
QString text = QTStr("Basic.MainMenu.Edit.Scale.Output");
text = text.arg(QString::number(output_width),
QString::number(output_height));
setItemText(2, text);
}
}
void OBSPreviewScalingComboBox::UpdateScaledText()
{
QString text = QTStr("Basic.MainMenu.Edit.Scale.Manual");
text = text.arg(QString::number(floor(canvas_width * previewScale)),
QString::number(floor(canvas_height * previewScale)));
setPlaceholderText(text);
}
void OBSPreviewScalingComboBox::UpdateSelection()
{
QSignalBlocker sb(this);
float outputScale = float(output_width) / float(canvas_width);
if (!fixedScaling) {
setCurrentIndex(0);
} else {
if (previewScale == 1.0f) {
setCurrentIndex(1);
} else if (scaleOutputEnabled &&
(previewScale == outputScale)) {
setCurrentIndex(2);
} else {
setCurrentIndex(-1);
}
}
}