qt: Introduce PlatformStyle

Introduce a PlatformStyle to handle platform-specific customization of
the UI.

This replaces 'scicon', as well as #ifdefs to determine whether to place
icons on buttons.

The selected PlatformStyle defaults to the platform that the application
was compiled on, but can be overridden from the command line with
`-uiplatform=<x>`.

Also fixes the warning from #6328.

1 files changed, 9 insertions, 6 deletions

diff --git a/src/qt/overviewpage.cpp b/src/qt/overviewpage.cpp
index bbd95ef478..a56c80ac63 100644
--- a/src/qt/overviewpage.cpp
+++ b/src/qt/overviewpage.cpp
@@ -10,7 +10,7 @@
 #include "guiconstants.h"
 #include "guiutil.h"
 #include "optionsmodel.h"
-#include "scicon.h"
+#include "platformstyle.h"
 #include "transactionfilterproxy.h"
 #include "transactiontablemodel.h"
 #include "walletmodel.h"
@@ -25,7 +25,9 @@ class TxViewDelegate : public QAbstractItemDelegate
 {
     Q_OBJECT
 public:
-    TxViewDelegate(): QAbstractItemDelegate(), unit(BitcoinUnits::BTC)
+    TxViewDelegate(const PlatformStyle *platformStyle):
+        QAbstractItemDelegate(), unit(BitcoinUnits::BTC),
+        platformStyle(platformStyle)
     {
 
     }
@@ -43,7 +45,7 @@ public:
         int halfheight = (mainRect.height() - 2*ypad)/2;
         QRect amountRect(mainRect.left() + xspace, mainRect.top()+ypad, mainRect.width() - xspace, halfheight);
         QRect addressRect(mainRect.left() + xspace, mainRect.top()+ypad+halfheight, mainRect.width() - xspace, halfheight);
-        icon = SingleColorIcon(icon, SingleColor());
+        icon = platformStyle->SingleColorIcon(icon);
         icon.paint(painter, decorationRect);
 
         QDateTime date = index.data(TransactionTableModel::DateRole).toDateTime();
@@ -101,11 +103,12 @@ public:
     }
 
     int unit;
+    const PlatformStyle *platformStyle;
 
 };
 #include "overviewpage.moc"
 
-OverviewPage::OverviewPage(QWidget *parent) :
+OverviewPage::OverviewPage(const PlatformStyle *platformStyle, QWidget *parent) :
     QWidget(parent),
     ui(new Ui::OverviewPage),
     clientModel(0),
@@ -116,13 +119,13 @@ OverviewPage::OverviewPage(QWidget *parent) :
     currentWatchOnlyBalance(-1),
     currentWatchUnconfBalance(-1),
     currentWatchImmatureBalance(-1),
-    txdelegate(new TxViewDelegate()),
+    txdelegate(new TxViewDelegate(platformStyle)),
     filter(0)
 {
     ui->setupUi(this);
 
     // use a SingleColorIcon for the "out of sync warning" icon
-    QIcon icon = SingleColorIcon(":/icons/warning");
+    QIcon icon = platformStyle->SingleColorIcon(":/icons/warning");
     icon.addPixmap(icon.pixmap(QSize(64,64), QIcon::Normal), QIcon::Disabled); // also set the disabled icon because we are using a disabled QPushButton to work around missing HiDPI support of QLabel (https://bugreports.qt.io/browse/QTBUG-42503)
     ui->labelTransactionsStatus->setIcon(icon);
     ui->labelWalletStatus->setIcon(icon);