a bit of refactor, fix the time to request next portion of messages in ui, fancy shadows are back!

2021-05-03 03:35:43 +03:00 · 2021-05-03 03:35:43 +03:00 · 05d6761baa
commit 05d6761baa
parent 216dcd29e9
12 changed files with 826 additions and 600 deletions
--- a/ui/utils/shadowoverlay.cpp
+++ b/ui/utils/shadowoverlay.cpp
@ -0,0 +1,91 @@
+/*
+ * Squawk messenger. 
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.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 <http://www.gnu.org/licenses/>.
+ */
+
+#include "shadowoverlay.h"
+
+ShadowOverlay::ShadowOverlay(unsigned int r, unsigned int t, const QColor& c, QWidget* parent):
+    QWidget(parent),
+    top(false),
+    right(false),
+    bottom(false),
+    left(false),
+    thickness(t),
+    radius(r),
+    color(c),
+    shadow(1, 1, QImage::Format_ARGB32_Premultiplied)
+{
+    setAttribute(Qt::WA_NoSystemBackground);
+    setAttribute(Qt::WA_TransparentForMouseEvents);
+}
+
+void ShadowOverlay::paintEvent(QPaintEvent* event)
+{
+    QWidget::paintEvent(event);
+    
+    QPainter painter(this);
+    
+    painter.drawImage(0, 0, shadow);
+}
+
+void ShadowOverlay::resizeEvent(QResizeEvent* event)
+{
+    QWidget::resizeEvent(event);
+    
+    updateImage();
+}
+
+void ShadowOverlay::updateImage()
+{
+    int w = width();
+    int h = height();
+    shadow = QImage({w, h + int(thickness)}, QImage::Format_ARGB32_Premultiplied);
+    shadow.fill(0);
+    
+    QPainter tmpPainter(&shadow);
+    tmpPainter.setCompositionMode(QPainter::CompositionMode_Source);
+    if (top) {
+        QRectF shadow(0, 0, w, thickness);
+        tmpPainter.fillRect(shadow, color);
+    }
+    if (right) {
+        QRectF shadow(w - thickness, 0, thickness, h);
+        tmpPainter.fillRect(shadow, color);
+    }
+    if (bottom) {
+        QRectF shadow(0, h - thickness, w, thickness * 2); //i have no idea why, but it leaves some unpainted stripe without some spare space 
+        tmpPainter.fillRect(shadow, color);
+    }
+    if (left) {
+        QRectF shadow(0, 0, thickness, h);
+        tmpPainter.fillRect(shadow, color);
+    }
+    
+    Utils::exponentialblur(shadow, radius, false, 0);
+    tmpPainter.end();
+}
+
+void ShadowOverlay::setFrames(bool t, bool r, bool b, bool l)
+{
+    top = t;
+    right = r;
+    bottom = b;
+    left = l;
+    
+    updateImage();
+    update();
+}