From 7692d16b78efd8a4f683150094065079df84461d Mon Sep 17 00:00:00 2001
From: Bjørn Lindeijer <bjorn@lindeijer.nl>
Date: Thu, 6 Jan 2005 23:30:18 +0000
Subject: Dragged in some Guichan code so that we can handle things a bit
 different.

---
 src/gui/gui.cpp | 116 +++++++++++++++++++++++++++++++++++++++++++++++++-------
 src/gui/gui.h   |  27 ++++++++++++-
 2 files changed, 129 insertions(+), 14 deletions(-)

diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index da8c3651..c227f05f 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -45,32 +45,26 @@
 #define GUI_CALL_BUTTONCALLBACK(d)
 static BITMAP *gui__repository[GUI_BMP_COUNT];
 
-/* The currently active skin */
+// The currently active skin
 LexSkin gui_skin;
 BITMAP *gui_bitmap;
 DATAFILE *gui_gfx;
 
 
-// Guichan Allegro stuff
-gcn::AllegroGraphics* guiGraphics;     // Graphics driver
-
 // Guichan stuff
 Gui* gui;
-gcn::Container* guiTop;   // The top container
+gcn::AllegroGraphics* guiGraphics;     // Graphics driver
+gcn::Container* guiTop;                // The top container
 
 
 Gui::Gui(BITMAP *screen)
 {
-    gui = new gcn::Gui();
-
     // Set graphics
     guiGraphics = new gcn::AllegroGraphics();
     guiGraphics->setTarget(screen);
-    gui->setGraphics(guiGraphics);
 
     // Set input
     guiInput = new AllegroInput();
-    gui->setInput(guiInput);
 
     // Set image loader
     imageLoader = new gcn::AllegroImageLoader();
@@ -80,7 +74,10 @@ Gui::Gui(BITMAP *screen)
     guiTop = new gcn::Container();
     guiTop->setDimension(gcn::Rectangle(0, 0, SCREEN_W, SCREEN_H));
     guiTop->setOpaque(false);
-    gui->setTop(guiTop);
+
+    // Create focus handler
+    focusHandler = new gcn::FocusHandler();
+    guiTop->_setFocusHandler(focusHandler);
 
     // Set global font
     guiFont = new gcn::ImageFont("./data/graphic/fixedfont.bmp",
@@ -97,18 +94,111 @@ Gui::~Gui()
     delete imageLoader;
     delete guiInput;
     delete guiGraphics;
-    delete gui;
+    delete focusHandler;
 }
 
 void Gui::update()
 {
-    gui->logic();
-    gui->draw();
+    logic();
+    draw();
 
     // Draw the mouse
     draw_sprite(gui_bitmap, mouse_sprite, mouse_x, mouse_y);
 }
 
+void Gui::logic()
+{
+    guiInput->_pollInput();
+
+    while (!guiInput->isMouseQueueEmpty())
+    {
+        gcn::MouseInput mi = guiInput->dequeueMouseInput();
+        gcn::Widget* focused = focusHandler->getFocused();
+
+        if (mi.x > 0 && mi.y > 0 &&
+                guiTop->getDimension().isPointInRect(mi.x, mi.y))
+        {
+            if (!topHasMouse) {
+                guiTop->_mouseInMessage();
+                topHasMouse = true;
+            }
+
+            gcn::MouseInput mio = mi;
+            mio.x -= guiTop->getX();
+            mio.y -= guiTop->getY();
+
+            if (!guiTop->hasFocus()) {
+                guiTop->_mouseInputMessage(mio);
+            }
+        }
+        else {
+            if (topHasMouse) {
+                guiTop->_mouseOutMessage();
+                topHasMouse = false;
+            }
+        }
+
+        if (focusHandler->getFocused() && focused == focusHandler->getFocused())
+        {
+            int xOffset, yOffset;
+            focused->getAbsolutePosition(xOffset, yOffset);
+
+            gcn::MouseInput mio = mi;
+            mio.x -= xOffset;
+            mio.y -= yOffset;
+            focused->_mouseInputMessage(mio);
+        }
+    }
+
+    while (!guiInput->isKeyQueueEmpty())
+    {
+        gcn::KeyInput ki = guiInput->dequeueKeyInput();
+
+        // Handle tabbing
+        if (ki.getKey().getValue() == gcn::Key::TAB &&
+                ki.getType() == gcn::KeyInput::PRESS)
+        {
+            if (ki.getKey().isShiftPressed()) {
+                focusHandler->tabPrevious();
+            }
+            else {
+                focusHandler->tabNext();
+            }
+        }
+        else {
+            // Send key inputs to the focused widgets
+            gcn::Widget* focused = focusHandler->getFocused();
+            if (focused)
+            {
+                if (focused->isFocusable()) {
+                    focused->_keyInputMessage(ki);
+                }
+                else {
+                    focusHandler->focusNone();
+                }
+            }
+        }
+    }
+
+    guiTop->logic();
+}
+
+void Gui::draw()
+{
+    guiGraphics->_beginDraw();
+
+    guiGraphics->pushClipArea(guiTop->getDimension());
+    guiTop->draw(guiGraphics);
+    guiGraphics->popClipArea();
+
+    guiGraphics->_endDraw();
+}
+
+void Gui::focusNone()
+{
+    focusHandler->focusNone();
+}
+
 
 void init_gui(BITMAP *bitmap, const char *skin) {
     gui = new Gui(bitmap);
diff --git a/src/gui/gui.h b/src/gui/gui.h
index ada04a55..1055db0b 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -53,18 +53,43 @@ class Gui
         /**
          * Destructor.
          */
-        virtual ~Gui();
+        ~Gui();
 
         /**
          * Performs GUI logic and drawing.
          */
         void update();
 
+        /**
+         * Focus none of the Widgets in the Gui.
+         */
+        void focusNone();
+
     private:
+        /**
+         * Performs the Gui:s logic by calling all logic functions
+         * down in the Gui heirarchy. Logic can be just about anything
+         * like adjusting a Widgets size or doing some calculations.
+         *
+         * NOTE: Logic also deals with user input (Mouse and Keyboard)
+         *       for Widgets.
+         */
+        void logic();
+
+        /**
+         * Draws the whole Gui by calling draw functions down in the
+         * Gui hierarchy.
+         */
+        void draw();
+
         gcn::Gui* gui;                        /**< The GUI system */
         gcn::Input* guiInput;                 /**< Input driver */
         gcn::ImageLoader* imageLoader;        /**< For loading images */
         gcn::ImageFont* guiFont;              /**< The global GUI font */
+
+        bool topHasMouse;
+
+        gcn::FocusHandler* focusHandler;
 };
 
 typedef struct {
-- 
cgit v1.2.3-70-g09d2