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, 6 insertions, 5 deletions

diff --git a/src/qt/coincontroldialog.cpp b/src/qt/coincontroldialog.cpp
index 934d62d5f..51008ad2d 100644
--- a/src/qt/coincontroldialog.cpp
+++ b/src/qt/coincontroldialog.cpp
@@ -9,7 +9,7 @@
 #include "bitcoinunits.h"
 #include "guiutil.h"
 #include "optionsmodel.h"
-#include "scicon.h"
+#include "platformstyle.h"
 #include "txmempool.h"
 #include "walletmodel.h"
 
@@ -35,10 +35,11 @@ QList<CAmount> CoinControlDialog::payAmounts;
 CCoinControl* CoinControlDialog::coinControl = new CCoinControl();
 bool CoinControlDialog::fSubtractFeeFromAmount = false;
 
-CoinControlDialog::CoinControlDialog(QWidget *parent) :
+CoinControlDialog::CoinControlDialog(const PlatformStyle *platformStyle, QWidget *parent) :
     QDialog(parent),
     ui(new Ui::CoinControlDialog),
-    model(0)
+    model(0),
+    platformStyle(platformStyle)
 {
     ui->setupUi(this);
 
@@ -280,7 +281,7 @@ void CoinControlDialog::lockCoin()
     COutPoint outpt(uint256S(contextMenuItem->text(COLUMN_TXHASH).toStdString()), contextMenuItem->text(COLUMN_VOUT_INDEX).toUInt());
     model->lockCoin(outpt);
     contextMenuItem->setDisabled(true);
-    contextMenuItem->setIcon(COLUMN_CHECKBOX, SingleColorIcon(":/icons/lock_closed"));
+    contextMenuItem->setIcon(COLUMN_CHECKBOX, platformStyle->SingleColorIcon(":/icons/lock_closed"));
     updateLabelLocked();
 }
 
@@ -791,7 +792,7 @@ void CoinControlDialog::updateView()
                 COutPoint outpt(txhash, out.i);
                 coinControl->UnSelect(outpt); // just to be sure
                 itemOutput->setDisabled(true);
-                itemOutput->setIcon(COLUMN_CHECKBOX, SingleColorIcon(":/icons/lock_closed"));
+                itemOutput->setIcon(COLUMN_CHECKBOX, platformStyle->SingleColorIcon(":/icons/lock_closed"));
             }
 
             // set checkbox