From b3858a91e0f6b2c4706ea7b4418a26d4ef14baa7 Mon Sep 17 00:00:00 2001
From: Yohann Ferreira <yohann_dot_ferreira_at_orange_dot_efer>
Date: Tue, 5 Jul 2011 00:23:22 +0200
Subject: Added textpopup on mouse hovering support to buttons.

I added a use of it to the menu buttons.
---
 src/gui/widgets/button.cpp | 58 +++++++++++++++++++++++++++++++++++++++++++++-
 src/gui/widgets/button.h   | 15 ++++++++++++
 2 files changed, 72 insertions(+), 1 deletion(-)

(limited to 'src/gui/widgets')

diff --git a/src/gui/widgets/button.cpp b/src/gui/widgets/button.cpp
index f072ef61..b2fa9e89 100644
--- a/src/gui/widgets/button.cpp
+++ b/src/gui/widgets/button.cpp
@@ -25,6 +25,7 @@
 #include "graphics.h"
 
 #include "gui/palette.h"
+#include "gui/textpopup.h"
 
 #include "resources/image.h"
 #include "resources/theme.h"
@@ -36,7 +37,8 @@
 
 int Button::mInstances = 0;
 float Button::mAlpha = 1.0;
-ImageRect *Button::mButton;
+ImageRect* Button::mButton;
+TextPopup* Button::mTextPopup = 0;
 
 enum{
     BUTTON_STANDARD,    // 0
@@ -159,6 +161,10 @@ void Button::init()
             btn[mode]->decRef();
         }
         updateAlpha();
+
+        // Load the popup
+        if (!mTextPopup)
+            mTextPopup = new TextPopup();
     }
     mInstances++;
 }
@@ -175,6 +181,9 @@ Button::~Button()
                 dtor<Image*>());
         }
         delete[] mButton;
+
+        // Remove the popup
+        delete mTextPopup;
     }
     removeButtonIcon();
 }
@@ -301,3 +310,50 @@ void Button::setCaption(const std::string& caption)
     mCaption = caption;
     adjustSize();
 }
+
+void Button::logic()
+{
+    gcn::Button::logic();
+    mTextPopup->logic();
+}
+
+void Button::mouseMoved(gcn::MouseEvent &event)
+{
+    gcn::Button::mouseMoved(event);
+    mTextPopup->mouseMoved(event);
+
+    int x = event.getX();
+    int y = event.getY();
+
+    if (event.getSource() == this && !mPopupText.empty())
+    {
+        if (mParent)
+        {
+            x += mParent->getX();
+            y += mParent->getY();
+        }
+
+        mTextPopup->show(x + getX(), y + getY(), mPopupText);
+    }
+    else
+    {
+        mTextPopup->setVisible(false);
+    }
+}
+
+void Button::mouseExited(gcn::MouseEvent &event)
+{
+    gcn::Button::mouseExited(event);
+    mTextPopup->mouseExited(event);
+
+    mTextPopup->setVisible(false);
+}
+
+void Button::setButtonPopupText(const std::string& text)
+{
+    mPopupText = text;
+    if (!mPopupText.empty())
+        mTextPopup->show(getX(), getY(), mPopupText);
+    else
+        mTextPopup->setVisible(false);
+}
diff --git a/src/gui/widgets/button.h b/src/gui/widgets/button.h
index 6d8f773c..cfc5043e 100644
--- a/src/gui/widgets/button.h
+++ b/src/gui/widgets/button.h
@@ -26,6 +26,7 @@
 
 class ImageRect;
 class Image;
+class TextPopup;
 
 /**
  * Button widget. Same as the Guichan button but with custom look.
@@ -74,6 +75,17 @@ class Button : public gcn::Button
         void setButtonIcon(const std::string& iconFile = std::string(),
                            int frameHeight = 0,  int frameWidth = 0);
 
+        /**
+         * Set the button popup text when hovering it for a few seconds.
+         *
+         * @note: An empty text will disable the popup.
+         */
+        void setButtonPopupText(const std::string& text = "");
+
+        void logic();
+        void mouseMoved(gcn::MouseEvent &event);
+        void mouseExited(gcn::MouseEvent &event);
+
     private:
         void init();
 
@@ -84,6 +96,9 @@ class Button : public gcn::Button
         static float mAlpha;
 
         Image** mButtonIcon;        /**< Button Icons graphics */
+
+        static TextPopup* mTextPopup;       /**< The buttons popup */
+        std::string mPopupText;             /**< the current button text */
 };
 
 #endif
-- 
cgit v1.2.3-70-g09d2