some tooltips

7 files changed, 89 insertions, 7 deletions

diff --git a/dw/fltkplatform.cc b/dw/fltkplatform.cc
index 4ceca58d..e4d9a874 100644
--- a/dw/fltkplatform.cc
+++ b/dw/fltkplatform.cc
@@ -25,6 +25,8 @@
 #include <fltk/run.h>
 #include <fltk/events.h>
 #include <fltk/Monitor.h>
+#include <fltk/InvisibleBox.h>
+#include <fltk/Tooltip.h>
 #include <fltk/utf.h>
 #include <stdio.h>
 
@@ -143,6 +145,45 @@ FltkColor * FltkColor::create (int col)
    return color;
 }
 
+::fltk::Widget *FltkTooltip::widget = NULL;
+
+FltkTooltip::FltkTooltip (const char *text) : Tooltip(text)
+{
+   /* ::fltk::Tooltip really, really wants a Widget */
+   if (!widget)
+      widget = new ::fltk::InvisibleBox(1, 1, 0, 0, NULL);
+   shown = false;
+}
+
+FltkTooltip::~FltkTooltip ()
+{
+   if (shown)
+      ::fltk::Tooltip::exit();
+}
+
+FltkTooltip *FltkTooltip::create (const char *text)
+{
+   return new FltkTooltip(text);
+}
+
+void FltkTooltip::onEnter()
+{
+   Rectangle rect;
+   widget->get_absolute_rect(&rect);
+   ::fltk::Tooltip::enter(widget, rect, str);
+   shown = true;
+}
+
+void FltkTooltip::onLeave()
+{
+   ::fltk::Tooltip::exit();
+   shown = false;
+}
+
+void FltkTooltip::onMotion()
+{
+}
+
 void FltkView::addFltkWidget (::fltk::Widget *widget,
                               core::Allocation *allocation)
 {
@@ -384,6 +425,11 @@ core::style::Color *FltkPlatform::createColor (int color)
    return FltkColor::create (color);
 }
 
+core::style::Tooltip *FltkPlatform::createTooltip (const char *text)
+{
+   return FltkTooltip::create (text);
+}
+
 void FltkPlatform::copySelection(const char *text)
 {
    fltk::copy(text, strlen(text), false);
diff --git a/dw/fltkplatform.hh b/dw/fltkplatform.hh
index 253f1bbd..d83f34ea 100644
--- a/dw/fltkplatform.hh
+++ b/dw/fltkplatform.hh
@@ -43,6 +43,20 @@ public:
    static FltkColor *create(int color);
 };
 
+class FltkTooltip: public core::style::Tooltip
+{
+private:
+   FltkTooltip (const char *text);
+   ~FltkTooltip ();
+   bool shown;
+   static ::fltk::Widget *widget;
+public:
+   static FltkTooltip *create(const char *text);
+   void onEnter();
+   void onLeave();
+   void onMotion();
+};
+
 
 /**
  * \brief This interface adds some more methods for all flkt-based views.
@@ -136,6 +150,7 @@ public:
    core::style::Font *createFont (core::style::FontAttrs *attrs,
                                       bool tryEverything);
    core::style::Color *createColor (int color);
+   core::style::Tooltip *createTooltip (const char *text);
 
    core::Imgbuf *createImgbuf (core::Imgbuf::Type type, int width, int height);
 
diff --git a/dw/image.cc b/dw/image.cc
index e200e5b9..4230d115 100644
--- a/dw/image.cc
+++ b/dw/image.cc
@@ -226,20 +226,28 @@ void Image::enterNotifyImpl (core::EventCrossing *event)
 {
    // BUG: this is wrong for image maps, but the cursor position is unknown.
    currLink = getStyle()->x_link;
+   core::style::Tooltip *tooltip = getStyle()->x_tooltip;
 
    if (currLink != -1) {
       (void) emitLinkEnter (currLink, -1, -1, -1);
    }
+   if (tooltip) {
+      tooltip->onEnter();
+   }
 }
 
 void Image::leaveNotifyImpl (core::EventCrossing *event)
 {
+   core::style::Tooltip *tooltip = getStyle()->x_tooltip;
    clicking = false;
 
    if (currLink != -1) {
       currLink = -1;
       (void) emitLinkEnter (-1, -1, -1, -1);
    }
+   if (tooltip) {
+      tooltip->onLeave();
+   }
 }
 
 /*
diff --git a/dw/layout.hh b/dw/layout.hh
index b9ba46e5..bd7e191d 100644
--- a/dw/layout.hh
+++ b/dw/layout.hh
@@ -237,6 +237,11 @@ public:
       return platform->createColor (color);
    }
 
+   inline style::Tooltip *createTooltip (const char *text)
+   {
+      return platform->createTooltip (text);
+   }
+
    inline Imgbuf *createImgbuf (Imgbuf::Type type, int width, int height)
    {
       return platform->createImgbuf (type, width, height);
diff --git a/dw/platform.hh b/dw/platform.hh
index 144f5d5f..d31fb6f9 100644
--- a/dw/platform.hh
+++ b/dw/platform.hh
@@ -124,6 +124,11 @@ public:
     */
    virtual style::Color *createColor (int color) = 0;
 
+   /**
+    * \brief Create a tooltip
+    */
+   virtual style::Tooltip *createTooltip (const char *text) = 0;
+
    /*
     * --------------------
     *    Image Buffers
diff --git a/dw/style.cc b/dw/style.cc
index ae118043..b284964f 100644
--- a/dw/style.cc
+++ b/dw/style.cc
@@ -65,7 +65,6 @@ void StyleAttrs::initValues ()
 void StyleAttrs::resetValues ()
 {
    x_img = -1;
-   x_tooltip = NULL;
 
    valign = VALIGN_BASELINE;
    textAlignChar = '.';
@@ -410,6 +409,11 @@ Color *Color::create (Layout *layout, int col)
    return layout->createColor (col);
 }
 
+Tooltip *Tooltip::create (Layout *layout, const char *text)
+{
+   return layout->createTooltip (text);
+}
+
 // ----------------------------------------------------------------------
 
 static void drawTriangle (View *view, Color *color, Color::Shading shading,
diff --git a/dw/style.hh b/dw/style.hh
index 8d0b9df7..e21cacc1 100644
--- a/dw/style.hh
+++ b/dw/style.hh
@@ -524,19 +524,18 @@ class Tooltip: public TooltipAttrs
 private:
    int refCount;
 
+protected:
    Tooltip (const char *text): TooltipAttrs(text) { refCount = 0; }
 
 public:
-   inline Tooltip *create (Layout *layout, const char *text)
-   { return new Tooltip (text); }
-
+   static Tooltip *create (dw::core::Layout *layout, const char *text);
    inline void ref () { refCount++; }
    inline void unref ()
    { if (--refCount == 0) delete this; }
 
-   inline void onEnter () { }
-   inline void onLeave () { }
-   inline void onMotion () { }
+   inline virtual void onEnter () { }
+   inline virtual void onLeave () { }
+   inline virtual void onMotion () { }
 };