Added AlertWindow LookAndFeel methods to offer more control on button widths

modules/juce_gui_basics/lookandfeel/juce_LookAndFeel_V2.cpp

@@ -489,9 +489,17 @@ int LookAndFeel_V2::getAlertBoxWindowFlags()
             | ComponentPeer::windowHasDropShadow;
 }
 
-int LookAndFeel_V2::getAlertWindowButtonWidth (TextButton& b)
+Array<int> LookAndFeel_V2::getWidthsForTextButtons (AlertWindow&, const Array<TextButton*>& buttons)
 {
-    return getTextButtonWidthToFitText (b, getAlertWindowButtonHeight());
+    const int n = buttons.size();
+    Array<int> buttonWidths;
+
+    const int buttonHeight = getAlertWindowButtonHeight();
+
+    for (int i = 0; i < n; ++i)
+        buttonWidths.add (getTextButtonWidthToFitText (*buttons.getReference (i), buttonHeight));
+
+    return buttonWidths;
 }
 
 int LookAndFeel_V2::getAlertWindowButtonHeight()

modules/juce_gui_basics/lookandfeel/juce_LookAndFeel_V2.h

@@ -67,7 +67,7 @@ public:
     void drawAlertBox (Graphics&, AlertWindow&, const Rectangle<int>& textArea, TextLayout&) override;
     int getAlertBoxWindowFlags() override;
 
-    int getAlertWindowButtonWidth (TextButton&) override;
+    Array<int> getWidthsForTextButtons (AlertWindow&, const Array<TextButton*>&) override;
     int getAlertWindowButtonHeight() override;
 
     /** Override this function to supply a custom font for the alert window title.

modules/juce_gui_basics/windows/juce_AlertWindow.cpp

@@ -99,8 +99,17 @@ void AlertWindow::addButton (const String& name,
     b->addShortcut (shortcutKey2);
     b->addListener (this);
 
-    b->setSize (getLookAndFeel().getAlertWindowButtonWidth (*b),
-                getLookAndFeel().getAlertWindowButtonHeight());
+    Array<TextButton*> buttonsArray (buttons.begin(), buttons.size());
+
+    const int buttonHeight        = getLookAndFeel().getAlertWindowButtonHeight();
+    const Array<int> buttonWidths = getLookAndFeel().getWidthsForTextButtons (*this, buttonsArray);
+
+    jassert (buttonWidths.size() == buttons.size());
+
+    const int n = buttonWidths.size();
+
+    for (int i = 0; i < n; ++i)
+        buttons.getUnchecked (i)->setSize (buttonWidths.getReference (i), buttonHeight);
 
     addAndMakeVisible (b, 0);
 

modules/juce_gui_basics/windows/juce_AlertWindow.h

@@ -435,7 +435,7 @@ public:
 
         virtual int getAlertBoxWindowFlags() = 0;
 
-        virtual int getAlertWindowButtonWidth (TextButton&) = 0;
+        virtual Array<int> getWidthsForTextButtons (AlertWindow&, const Array<TextButton*>&) = 0;
         virtual int getAlertWindowButtonHeight() = 0;
 
         virtual Font getAlertWindowTitleFont() = 0;