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Code Issues Releases Wiki Activity

Added fade effect to input message fields.

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This commit is contained in:
23rd
2024-02-14 18:26:18 +03:00
parent dcf4f45a36
commit 113c8a797f
5 changed files with 74 additions and 0 deletions
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69
Telegram/SourceFiles/chat_helpers/message_field.cpp
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@@ -15,6 +15,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
#include "base/qthelp_url.h"
#include "base/event_filter.h"
#include "ui/layers/generic_box.h"
#include "ui/rect.h"
#include "core/shortcuts.h"
#include "core/application.h"
#include "core/core_settings.h"
@@ -442,6 +443,74 @@ bool HasSendText(not_null<const Ui::InputField*> field) {
return false;
}
void InitMessageFieldFade(not_null<Ui::InputField*> field) {
class Fade final : public Ui::RpWidget {
public:
using Ui::RpWidget::RpWidget;
void setFade(QPixmap &&fade) {
_fade = std::move(fade);
}
int resizeGetHeight(int newWidth) override {
return st::historyComposeFieldFadeHeight;
}
private:
void paintEvent(QPaintEvent *event) override {
auto p = QPainter(this);
p.drawTiledPixmap(rect(), _fade);
}
QPixmap _fade;
};
const auto topFade = Ui::CreateChild<Fade>(field.get());
const auto bottomFade = Ui::CreateChild<Fade>(field.get());
const auto generateFade = [=] {
const auto size = QSize(1, st::historyComposeFieldFadeHeight);
auto fade = QPixmap(size * style::DevicePixelRatio());
fade.setDevicePixelRatio(style::DevicePixelRatio());
fade.fill(Qt::transparent);
{
auto p = QPainter(&fade);
auto gradient = QLinearGradient(0, 1, 0, size.height());
gradient.setStops({
{ 0., st::historyComposeField.textBg->c },
{ .9, Qt::transparent },
});
p.setPen(Qt::NoPen);
p.setBrush(gradient);
p.drawRect(Rect(size));
}
bottomFade->setFade(fade.transformed(QTransform().scale(1, -1)));
topFade->setFade(std::move(fade));
};
generateFade();
style::PaletteChanged(
) | rpl::start_with_next([=] {
generateFade();
}, topFade->lifetime());
field->sizeValue(
) | rpl::start_with_next_done([=](const QSize &size) {
topFade->resizeToWidth(size.width());
bottomFade->resizeToWidth(size.width());
bottomFade->move(
0,
size.height() - st::historyComposeFieldFadeHeight);
}, [t = Ui::MakeWeak(topFade), b = Ui::MakeWeak(bottomFade)] {
Ui::DestroyChild(t.data());
Ui::DestroyChild(b.data());
}, topFade->lifetime());
topFade->show();
bottomFade->show();
}
InlineBotQuery ParseInlineBotQuery(
not_null<Main::Session*> session,
not_null<const Ui::InputField*> field) {