From e3531649735e6c43ee608d32092ab8e9a63c275c Mon Sep 17 00:00:00 2001
From: yangjiaxuan <171295266@qq.com>
Date: Fri, 9 Jun 2023 15:26:44 +0800
Subject: [PATCH] =?UTF-8?q?sane=E9=A9=B1=E5=8A=A8=E5=BE=AE=E8=B0=83?=
 =?UTF-8?q?=E8=AE=BE=E7=BD=AE=E7=95=8C=E9=9D=A2slider?=
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Content-Transfer-Encoding: 8bit

---
 modules/saneui/hg_settingdialog.cpp | 21 +++++++++++++++++++++
 modules/saneui/hg_settingdialog.h   |  1 +
 2 files changed, 22 insertions(+)

diff --git a/modules/saneui/hg_settingdialog.cpp b/modules/saneui/hg_settingdialog.cpp
index f16ed153..c2bb8d61 100644
--- a/modules/saneui/hg_settingdialog.cpp
+++ b/modules/saneui/hg_settingdialog.cpp
@@ -441,6 +441,13 @@ void hg_settingdialog::createUI()
                 widget_slider_spin->setMinimumWidth(300);
 
                 QSlider* sliderCreation = new QSlider(widget_slider_spin);
+
+                if (0 == strcmp(opt->name, SANE_STD_OPT_NAME_THRESHOLD) || 0 == strcmp(opt->name, SANE_STD_OPT_NAME_ANTI_NOISE_LEVEL) ||
+                        0 == strcmp(opt->name, SANE_STD_OPT_NAME_MARGIN))
+                {
+                    sliderCreation->installEventFilter(this);
+                }
+
                 sliderCreation->setOrientation(Qt::Horizontal);
                 sliderCreation->setMinimumWidth(120);
                 sliderCreation->setRange(opt->constraint.range->min, opt->constraint.range->max);
@@ -706,6 +713,7 @@ void hg_settingdialog::createUI()
 
    } //for
 
+    hlayoutOkAndCancel->insertWidget(0, buttonAbout, 0, Qt::AlignRight);
     updateUIStatus();
 
     scrollArea->setWidget(widget);
@@ -1576,6 +1584,19 @@ void hg_settingdialog::closeEvent(QCloseEvent* e)
     e->accept();
 }
 
+bool hg_settingdialog::eventFilter(QObject *target, QEvent *event)
+{
+    if (target->findChild<QSlider *>("QSlider"));
+    {
+        if (event->type() == QEvent::Wheel)
+        {
+            return true;
+        }
+    }
+
+    return QDialog::eventFilter(target, event);
+}
+
 bool hg_settingdialog::createMsgBoxUi(bool add, std::string &name)
 {
     QString text(tr("Please select to overwrite the original configuration:"));
diff --git a/modules/saneui/hg_settingdialog.h b/modules/saneui/hg_settingdialog.h
index 8d632512..0405a6c0 100644
--- a/modules/saneui/hg_settingdialog.h
+++ b/modules/saneui/hg_settingdialog.h
@@ -78,6 +78,7 @@ private:
     const void* find_option_description(const std::string& title, int* id);    // return const SANE_Option_Descriptor* pointer
 
     virtual void closeEvent(QCloseEvent* e);
+    virtual bool eventFilter(QObject *target, QEvent *event) override;
     bool createMsgBoxUi(bool add, std::string &name);
     std::string getCurUiShemeName(std::string name);
     void save_scheme(void);