From cc80230bd85dbaf1036b4cf37259d3146229fb00 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20L=C3=BCbking?= <thomas.luebking@gmail.com>
Date: Thu, 4 Aug 2016 15:20:35 +0200
Subject: expose a preferredWidth of *Button's

---
 src/FbTk/Button.hh     | 2 ++
 src/FbTk/TextButton.cc | 4 ++++
 src/FbTk/TextButton.hh | 1 +
 src/IconButton.cc      | 7 +++++++
 src/IconButton.hh      | 2 ++
 5 files changed, 16 insertions(+)

diff --git a/src/FbTk/Button.hh b/src/FbTk/Button.hh
index 1f65799..c3276a6 100644
--- a/src/FbTk/Button.hh
+++ b/src/FbTk/Button.hh
@@ -55,6 +55,8 @@ public:
     virtual void setBackgroundColor(const Color &color);
     virtual bool setOrientation(FbTk::Orientation orient) { return orient == FbTk::ROT0; }
 
+    virtual unsigned int preferredWidth() const { return width(); }
+
     /**
        @name eventhandlers
      */
diff --git a/src/FbTk/TextButton.cc b/src/FbTk/TextButton.cc
index 4d05ecd..0cc1b51 100644
--- a/src/FbTk/TextButton.cc
+++ b/src/FbTk/TextButton.cc
@@ -112,6 +112,10 @@ unsigned int TextButton::textWidth() const {
     return font().textWidth(text());
 }
 
+unsigned int TextButton::preferredWidth() const {
+    return m_bevel + m_left_padding + m_right_padding + textWidth();
+}
+
 void TextButton::renderForeground(FbWindow &win, FbDrawable &drawable) {
     // (win should always be *this, no need to check)
     drawText(0, 0, &drawable);
diff --git a/src/FbTk/TextButton.hh b/src/FbTk/TextButton.hh
index fe92cc3..90c7c3d 100644
--- a/src/FbTk/TextButton.hh
+++ b/src/FbTk/TextButton.hh
@@ -62,6 +62,7 @@ public:
     unsigned int textWidth() const;
     int bevel() const { return m_bevel; }
 
+    virtual unsigned int preferredWidth() const;
 
 protected:
     virtual void drawText(int x_offset, int y_offset, FbDrawable *drawable_override);
diff --git a/src/IconButton.cc b/src/IconButton.cc
index 4997365..4b0b423 100644
--- a/src/IconButton.cc
+++ b/src/IconButton.cc
@@ -279,3 +279,10 @@ bool IconButton::setOrientation(FbTk::Orientation orient) {
     return false;
 }
 
+unsigned int IconButton::preferredWidth() const {
+    unsigned int r = TextButton::preferredWidth();
+    if (m_icon_pixmap.drawable())
+        r += m_icon_window.width() + 1;
+    return r;
+}
+
diff --git a/src/IconButton.hh b/src/IconButton.hh
index 876cfe2..d3cb3d8 100644
--- a/src/IconButton.hh
+++ b/src/IconButton.hh
@@ -65,6 +65,8 @@ public:
 
     bool setOrientation(FbTk::Orientation orient);
 
+    virtual unsigned int preferredWidth() const;
+
     const FbTk::Signal<> &titleChanged() { return m_title_changed; }
 
 protected:
-- 
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