From 4e5e298bbb69dc41473c2e39e10cc6bf88574a02 Mon Sep 17 00:00:00 2001
From: Joel Holdsworth <joel@joel-desktop.(none)>
Date: Sat, 16 Aug 2008 22:06:46 +0100
Subject: [PATCH] Added a time indicator widget

---
 src/gui/panels/timeline-panel.cpp   | 21 +++++++++++++++++++++
 src/gui/panels/timeline-panel.hpp   | 10 ++++++++++
 src/gui/widgets/timeline-widget.cpp |  7 +++++++
 src/gui/widgets/timeline-widget.hpp |  6 ++++++
 4 files changed, 44 insertions(+)

diff --git a/src/gui/panels/timeline-panel.cpp b/src/gui/panels/timeline-panel.cpp
index 00a3c3f0f..fb0bace5b 100644
--- a/src/gui/panels/timeline-panel.cpp
+++ b/src/gui/panels/timeline-panel.cpp
@@ -23,6 +23,10 @@
 #include "../gtk-lumiera.hpp"
 #include "timeline-panel.hpp"
 
+extern "C" {
+#include "../../lib/time.h"
+}
+
 using namespace Gtk;
 using namespace sigc;
 using namespace lumiera::gui::widgets;
@@ -39,8 +43,13 @@ TimelinePanel::TimelinePanel() :
   iBeamTool(Gtk::StockID("tool_i_beam")),
   zoomIn(Stock::ZOOM_IN),
   zoomOut(Stock::ZOOM_OUT),
+  timeIndicator(),
   updatingToolbar(false)
 {
+  // Setup the widget
+  timelineWidget.mouse_hover_signal().connect(
+    mem_fun(this, &TimelinePanel::on_mouse_hover));
+  
   // Setup the toolbar
   toolbar.append(arrowTool, mem_fun(this,
     &TimelinePanel::on_arrow_tool));
@@ -50,6 +59,12 @@ TimelinePanel::TimelinePanel() :
   toolbar.append(zoomIn, mem_fun(this, &TimelinePanel::on_zoom_in));
   toolbar.append(zoomOut, mem_fun(this, &TimelinePanel::on_zoom_out));
   
+  seperator2.set_expand(true);
+  toolbar.append(seperator2);
+
+  timeIndicatorButton.set_label_widget(timeIndicator);
+  toolbar.append(timeIndicatorButton);
+  
   toolbar.set_icon_size(IconSize(ICON_SIZE_LARGE_TOOLBAR));
   toolbar.set_toolbar_style(TOOLBAR_ICONS);
   
@@ -92,6 +107,12 @@ TimelinePanel::on_zoom_out()
   update_zoom_buttons();
 }
 
+void
+TimelinePanel::on_mouse_hover(gavl_time_t time)
+{
+  timeIndicator.set_text(lumiera_tmpbuf_print_time(time));
+}
+
 void
 TimelinePanel::update_tool_buttons()
 {    
diff --git a/src/gui/panels/timeline-panel.hpp b/src/gui/panels/timeline-panel.hpp
index 37491c0d9..e2609bf20 100644
--- a/src/gui/panels/timeline-panel.hpp
+++ b/src/gui/panels/timeline-panel.hpp
@@ -55,6 +55,10 @@ private:
   void on_zoom_in();
   void on_zoom_out();
   
+  void on_time_pressed();
+  
+  void on_mouse_hover(gavl_time_t time);
+  
 private:
   void update_tool_buttons();
   void update_zoom_buttons();
@@ -65,6 +69,7 @@ private:
 
   // Widgets
   Gtk::Toolbar toolbar;
+  Gtk::HBox toolStrip;
   TimelineWidget timelineWidget;
   
   // Toolbar Widgets
@@ -76,6 +81,11 @@ private:
   Gtk::ToolButton zoomIn;
   Gtk::ToolButton zoomOut;
   
+  Gtk::SeparatorToolItem seperator2;
+  
+  Gtk::Label timeIndicator;
+  Gtk::ToolButton timeIndicatorButton;
+  
   // Internals
   bool updatingToolbar;
   
diff --git a/src/gui/widgets/timeline-widget.cpp b/src/gui/widgets/timeline-widget.cpp
index fd22ab3f9..e1931ab5b 100644
--- a/src/gui/widgets/timeline-widget.cpp
+++ b/src/gui/widgets/timeline-widget.cpp
@@ -215,6 +215,12 @@ TimelineWidget::set_tool(ToolType tool_type)
   body->set_tool(tool_type);
 }
 
+sigc::signal<void, gavl_time_t>
+TimelineWidget::mouse_hover_signal() const
+{
+  return mouseHoverSignal;
+}
+
 void
 TimelineWidget::on_scroll()
 {
@@ -309,6 +315,7 @@ TimelineWidget::on_motion_in_body_notify_event(GdkEventMotion *event)
 {
   REQUIRE(event != NULL);
   ruler->set_mouse_chevron_offset(event->x);
+  mouseHoverSignal.emit(x_to_time(event->x));
   return true;
 }
 
diff --git a/src/gui/widgets/timeline-widget.hpp b/src/gui/widgets/timeline-widget.hpp
index 76e4a16d7..aba15cc04 100644
--- a/src/gui/widgets/timeline-widget.hpp
+++ b/src/gui/widgets/timeline-widget.hpp
@@ -132,6 +132,10 @@ public:
    * Sets the type of the tool currently active.
    */
   void set_tool(timeline::ToolType tool_type);
+  
+public:
+  /* ===== Signals ===== */
+  sigc::signal<void, gavl_time_t> mouse_hover_signal() const;
     
   /* ===== Events ===== */
 protected:
@@ -179,6 +183,8 @@ protected:
   Gtk::Adjustment horizontalAdjustment, verticalAdjustment;
   Gtk::HScrollbar horizontalScroll;
   Gtk::VScrollbar verticalScroll;
+  
+  sigc::signal<void, gavl_time_t> mouseHoverSignal;
    
   /* ===== Constants ===== */
 public: