paysages : Added a tooltip for preview OSD items.

git-svn-id: https://subversion.assembla.com/svn/thunderk/paysages@363 b1fd45b6-86a6-48da-8261-f70d1f35bdcc

TODO

@@ -17,7 +17,6 @@ Technology Preview 2 :
 - Improve previews.
    => Add a right click menu for toggles and modes
    => Add user markers on OSD
-   => Add a tooltip for OSD items
 - Add a zone editor dialog for localized textures.
 - Add a terrain modifier dialog with zones.
 - Use the curve editor in noise editor

gui_qt/basepreview.cpp

@@ -5,6 +5,7 @@
 #include <QPainter>
 #include <QTimer>
 #include <QWheelEvent>
+#include <qt4/QtGui/qlabel.h>
 #include "tools.h"
 
 /*************** PreviewChunk ***************/
@@ -276,6 +277,10 @@ QWidget(parent)
     _width = width();
     _height = height();
     _revision = 0;
+    
+    _info = new QLabel(this);
+    _info->setVisible(false);
+    _info->setStyleSheet("QLabel { background-color: white; color: black; }");
 
     this->alive = true;
 
@@ -293,6 +298,7 @@ BasePreview::~BasePreview()
 
     _drawing_manager->removeChunks(this);
 
+    delete _info;
     delete pixbuf;
     delete lock_drawing;
 }
@@ -300,6 +306,7 @@ BasePreview::~BasePreview()
 void BasePreview::addOsd(QString name)
 {
     _osd.append(PreviewOsd::getInstance(name));
+    setMouseTracking(true);
 }
 
 void BasePreview::initDrawers()
@@ -502,12 +509,16 @@ void BasePreview::mousePressEvent(QMouseEvent* event)
 
 void BasePreview::mouseMoveEvent(QMouseEvent* event)
 {
-    int dx, dy;
-    int ndx, ndy;
     int width, height;
+    
+    width = this->width();
+    height = this->height();
 
     if (event->buttons() & Qt::LeftButton)
     {
+        int dx, dy;
+        int ndx, ndy;
+        
         dx = event->x() - mousex;
         dy = event->y() - mousey;
 
@@ -531,9 +542,6 @@ void BasePreview::mouseMoveEvent(QMouseEvent* event)
         }
         if (ndx != 0 || ndy != 0)
         {
-            width = this->width();
-            height = this->height();
-
             if (ndx <= -width || ndx >= width || ndy <= -height || ndy >= height)
             {
                 xoffset -= (double) ndx * scaling;
@@ -589,6 +597,28 @@ void BasePreview::mouseMoveEvent(QMouseEvent* event)
         mousex = event->x();
         mousey = event->y();
     }
+    else
+    {
+        // Get text info from OSD
+        bool found = false;
+        for (int i = 0; i < _osd.size(); i++)
+        {
+            double x = xoffset + (event->x() - width / 2) * scaling;
+            double y = yoffset + (event->y() - height / 2) * scaling;
+            QString info = _osd[i]->getToolTip(x, y, scaling);
+            if (not info.isEmpty())
+            {
+                _info->setText(info);
+                _info->setVisible(true);
+                found = true;
+                break;
+            }
+        }
+        if (not found)
+        {
+            _info->setVisible(false);
+        }
+    }
 }
 
 void BasePreview::wheelEvent(QWheelEvent* event)
@@ -676,3 +706,8 @@ void BasePreview::wheelEvent(QWheelEvent* event)
 
     event->accept();
 }
+
+void BasePreview::leaveEvent(QEvent* event)
+{
+    _info->setVisible(false);
+}

gui_qt/basepreview.h

@@ -7,6 +7,7 @@
 #include <QThread>
 #include <QVector>
 #include <QList>
+#include <QLabel>
 #include "previewosd.h"
 
 class BasePreview : public QWidget {
@@ -52,10 +53,13 @@ private:
     void mousePressEvent(QMouseEvent* event);
     void mouseMoveEvent(QMouseEvent* event);
     void wheelEvent(QWheelEvent* event);
+    void leaveEvent(QEvent* event);
 
     QMutex* lock_drawing;
     QImage* pixbuf;
     QVector<PreviewOsd*> _osd;
+    
+    QLabel* _info;
 
     int _width;
     int _height;

gui_qt/mainwindow.cpp

@@ -157,7 +157,9 @@ void MainWindow::refreshAll()
     PreviewOsd* osd = PreviewOsd::getInstance(QString("geolocation"));
     osd->clearItems();
     sceneryGetCamera(&camera);
-    osd->newItem(50, 50)->drawCamera(&camera);
+    PreviewOsdItem* item = osd->newItem(50, 50);
+    item->drawCamera(&camera);
+    item->setToolTip(QString(tr("Camera")));
     cameraDeleteDefinition(&camera);
 }
 

gui_qt/previewosd.cpp

@@ -35,6 +35,23 @@ void PreviewOsdItem::drawCamera(CameraDefinition* camera)
     painter.drawLine(w2, h2, w2 + w2 * cos(camera->yaw + M_PI_4), h2 - h2 * sin(camera->yaw + M_PI_4));
 }
 
+void PreviewOsdItem::setToolTip(QString text)
+{
+    _tooltip = text;
+}
+
+QString PreviewOsdItem::getToolTip(double x, double y, double scaling)
+{
+    if (_tooltip.isEmpty() or (x > _xlocation - (width() / 2) * scaling and x < _xlocation + (width() / 2) * scaling and y > _ylocation - (height() / 2) * scaling and y < _ylocation + (height() / 2) * scaling))
+    {
+        return _tooltip;
+    }
+    else
+    {
+        return QString();
+    }
+}
+
 /*************** PreviewOsd ***************/
 PreviewOsd::PreviewOsd()
 {
@@ -98,3 +115,17 @@ void PreviewOsd::apply(QImage* mask, double xoffset, double yoffset, double scal
         painter.drawImage(x, y, *item);
     }
 }
+
+QString PreviewOsd::getToolTip(double x, double y, double scaling)
+{
+    for (int i = 0; i < _items.size(); i++)
+    {
+        PreviewOsdItem* item = _items[i];
+        QString tooltip = item->getToolTip(x, y, scaling);
+        if (not tooltip.isEmpty())
+        {
+            return tooltip;
+        }
+    }
+    return QString();
+}

gui_qt/previewosd.h

@@ -13,11 +13,15 @@ public:
     inline double xlocation() {return _xlocation;};
     inline double ylocation() {return _ylocation;};
     
+    void setToolTip(QString text);
+    QString getToolTip(double x, double y, double scaling);
+    
     void drawCamera(CameraDefinition* camera);
     
 private:
     double _xlocation;
     double _ylocation;
+    QString _tooltip;
 };
 
 class PreviewOsd
@@ -32,6 +36,7 @@ public:
     PreviewOsdItem* newItem(int width, int height);
     PreviewOsdItem* newItem(QImage image);
     void apply(QImage* mask, double xoffset, double yoffset, double scaling);
+    QString getToolTip(double x, double y, double scaling);
     
 private:
     QVector<PreviewOsdItem*> _items;

i18n/paysages_fr.ts

@@ -1007,87 +1007,92 @@ rapide (F5)</translation>
         <translation>F5</translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="166"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="162"/>
+        <source>Camera</source>
+        <translation type="unfinished">Caméra</translation>
+    </message>
+    <message>
+        <location filename="../gui_qt/mainwindow.cpp" line="168"/>
         <source>Do you want to start a new scenery ? Any unsaved changes will be lost.</source>
         <translation>Voulez-vous commencer un nouveau paysage ? Les modifications non sauvegardées seront perdues.</translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="166"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="168"/>
         <source>Paysages 3D - New scenery</source>
         <translation>Paysages 3D - Nouvelle scène</translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="176"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="178"/>
         <source>Paysages 3D - Choose a file to save the scenery</source>
         <translation>Paysages 3D - Choisissez un fichier pour enregistrer la scène</translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="176"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="178"/>
-        <location filename="../gui_qt/mainwindow.cpp" line="202"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="204"/>
         <source>Paysages 3D Scenery (*.p3d)</source>
         <translation>Scène Paysages 3D (*.p3d)</translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="190"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="192"/>
-        <location filename="../gui_qt/mainwindow.cpp" line="193"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="195"/>
         <source>Paysages 3D - File saving error</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="190"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="192"/>
         <source>Can&apos;t write specified file : %1</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="193"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="195"/>
         <source>Unexpected error while saving file : %1</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="200"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="202"/>
         <source>Do you want to load a scenery from file ? Any unsaved changes will be lost.</source>
         <translation>Voulez-vous charger une scène ? Les modifications non sauvegardées seront perdues.</translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="200"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="202"/>
         <source>Paysages 3D - Load scenery</source>
         <translation>Paysages 3D - Charger une scène</translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="202"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="204"/>
         <source>Paysages 3D - Choose a scenery file to load</source>
         <translation>Paysages 3D - Choisissez un fichier de scène à charger</translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="212"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="214"/>
-        <location filename="../gui_qt/mainwindow.cpp" line="215"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="217"/>
-        <location filename="../gui_qt/mainwindow.cpp" line="218"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="220"/>
-        <location filename="../gui_qt/mainwindow.cpp" line="221"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="223"/>
         <source>Paysages 3D - File loading error</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="212"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="214"/>
         <source>Can&apos;t read specified file : %1</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="215"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="217"/>
         <source>This file doesn&apos;t look like a Paysages 3D file : %1</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="218"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="220"/>
         <source>This file was created with an incompatible Paysages 3D version : %1</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="221"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="223"/>
         <source>Unexpected error while loading file : %1</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="229"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="231"/>
         <source>A 3D landscape editing and rendering software.
 
 Authors :
@@ -1197,7 +1202,7 @@ GLib - http://www.gtk.org/
         <translation type="obsolete">Voulez-vous charger un paysage ? Les modifications nons sauvegardées seront perdues.</translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="229"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="231"/>
         <source>Paysages 3D</source>
         <translation>Paysages 3D</translation>
     </message>