Moved Stars45 to StarsEx

1 files changed, 237 insertions, 0 deletions

diff --git a/StarsEx/DisplayView.cpp b/StarsEx/DisplayView.cpp
new file mode 100644
index 0000000..89d019d
--- /dev/null
+++ b/StarsEx/DisplayView.cpp
@@ -0,0 +1,237 @@
+/*  Starshatter: The Open Source Project
+    Copyright (c) 2021-2022, Starshatter: The Open Source Project Contributors
+    Copyright (c) 2011-2012, Starshatter OpenSource Distribution Contributors
+    Copyright (c) 1997-2006, Destroyer Studios LLC.
+
+    AUTHOR:       John DiCamillo
+
+
+    OVERVIEW
+    ========
+    View class for Quantum Destination HUD Overlay
+*/
+
+#include "DisplayView.h"
+#include "QuantumDrive.h"
+#include "HUDView.h"
+#include "Ship.h"
+#include "Element.h"
+#include "Sim.h"
+#include "StarSystem.h"
+#include "FormatUtil.h"
+
+#include "Color.h"
+#include "Window.h"
+#include "Video.h"
+#include "Screen.h"
+#include "DataLoader.h"
+#include "Scene.h"
+#include "Font.h"
+#include "FontMgr.h"
+#include "Keyboard.h"
+#include "Mouse.h"
+#include "Clock.h"
+#include "Menu.h"
+
+// +====================================================================+
+
+class DisplayElement
+{
+public:
+    static const char* TYPENAME() { return "DisplayElement"; }
+
+    DisplayElement() : image(0), font(0), blend(0), hold(0), fade_in(0), fade_out(0) { }
+
+    Text           text;
+    Bitmap*        image;
+    Font*          font;
+    Color          color;
+    Rect           rect;
+    int            blend;
+    double         hold;
+    double         fade_in;
+    double         fade_out;
+};
+
+// +====================================================================+
+
+DisplayView* display_view = 0;
+
+DisplayView::DisplayView(Window* c)
+: View(c), width(0), height(0), xcenter(0), ycenter(0)
+{
+    display_view   = this;
+    DisplayView::OnWindowMove();
+}
+
+DisplayView::~DisplayView()
+{
+    if (display_view == this)
+    display_view = 0;
+
+    elements.destroy();
+}
+
+DisplayView*
+DisplayView::GetInstance()
+{
+    if (display_view == 0)
+    display_view = new DisplayView(0);
+
+    return display_view;
+}
+
+void
+DisplayView::OnWindowMove()
+{
+    if (window) {
+        width       = window->Width();
+        height      = window->Height();
+        xcenter     = (width  / 2.0) - 0.5;
+        ycenter     = (height / 2.0) + 0.5;
+    }
+}
+
+// +--------------------------------------------------------------------+
+
+void
+DisplayView::Refresh()
+{
+    ListIter<DisplayElement> iter = elements;
+    while (++iter) {
+        DisplayElement* elem = iter.value();
+
+        // convert relative rect to window rect:
+        Rect elem_rect = elem->rect;
+        if (elem_rect.x == 0 && elem_rect.y == 0 && elem_rect.w == 0 && elem_rect.h == 0) {
+            // stretch to fit
+            elem_rect.w = width;
+            elem_rect.h = height;
+        }
+        else if (elem_rect.w < 0 && elem_rect.h < 0) {
+            // center image in window
+            elem_rect.w *= -1;
+            elem_rect.h *= -1;
+
+            elem_rect.x = (width  - elem_rect.w)/2;
+            elem_rect.y = (height - elem_rect.h)/2;
+        }
+        else {
+            // offset from right or bottom
+            if (elem_rect.x < 0) elem_rect.x += width;
+            if (elem_rect.y < 0) elem_rect.y += height;
+        }
+
+        // compute current fade,
+        // assumes fades are 1 second or less:
+        double fade = 0;
+        if (elem->fade_in > 0)        fade = 1 - elem->fade_in;
+        else if (elem->hold > 0)      fade = 1;
+        else if (elem->fade_out > 0)  fade = elem->fade_out;
+
+        // draw text:
+        if (elem->text.length() && elem->font) {
+            elem->font->SetColor(elem->color);
+            elem->font->SetAlpha(fade);
+            window->SetFont(elem->font);
+            window->DrawText(elem->text, elem->text.length(), elem_rect, DT_WORDBREAK);
+        }
+
+        // draw image:
+        else if (elem->image) {
+            window->FadeBitmap(  elem_rect.x,
+            elem_rect.y,
+            elem_rect.x + elem_rect.w,
+            elem_rect.y + elem_rect.h,
+            elem->image,
+            elem->color * fade,
+            elem->blend );
+
+        }
+    }
+}
+
+// +--------------------------------------------------------------------+
+
+void
+DisplayView::ExecFrame()
+{
+    double seconds = Clock::GetInstance()->GuiDelta();
+
+    ListIter<DisplayElement> iter = elements;
+    while (++iter) {
+        DisplayElement* elem = iter.value();
+
+        if (elem->fade_in > 0)
+        elem->fade_in -= seconds;
+
+        else if (elem->hold > 0)
+        elem->hold -= seconds;
+
+        else if (elem->fade_out > 0)
+        elem->fade_out -= seconds;
+
+        else
+        delete iter.removeItem();
+    }
+}
+
+// +--------------------------------------------------------------------+
+
+void
+DisplayView::ClearDisplay()
+{
+    elements.destroy();
+}
+
+// +--------------------------------------------------------------------+
+
+void
+DisplayView::AddText( const char*   text,
+Font*         font,
+Color         color,
+const Rect&   rect,
+double        hold,
+double        fade_in,
+double        fade_out)
+{
+    DisplayElement* elem = new DisplayElement;
+
+    if (fade_in == 0 && fade_out == 0 && hold == 0)
+    hold = 300;
+
+    elem->text     = text;
+    elem->font     = font;
+    elem->color    = color;
+    elem->rect     = rect;
+    elem->hold     = hold;
+    elem->fade_in  = fade_in;
+    elem->fade_out = fade_out;
+
+    elements.append(elem);
+}
+
+void
+DisplayView::AddImage(Bitmap*       bmp,
+Color         color,
+int           blend,
+const Rect&   rect,
+double        hold,
+double        fade_in,
+double        fade_out)
+{
+    DisplayElement* elem = new DisplayElement;
+
+    if (fade_in == 0 && fade_out == 0 && hold == 0)
+    hold = 300;
+
+    elem->image    = bmp;
+    elem->rect     = rect;
+    elem->color    = color;
+    elem->blend    = blend;
+    elem->hold     = hold;
+    elem->fade_in  = fade_in;
+    elem->fade_out = fade_out;
+
+    elements.append(elem);
+}