From c0c336500955a23e344651e5412c9d9d441ef4ee Mon Sep 17 00:00:00 2001
From: Ash Wolf <ninji@wuffs.org>
Date: Wed, 28 Jun 2023 22:22:32 +0100
Subject: first pass of T2DLL

---
 src/T2DLL/T2DlgItemGageBase.cpp | 97 ++++++++++++++++++++++++++++++++++++++---
 1 file changed, 91 insertions(+), 6 deletions(-)

(limited to 'src/T2DLL/T2DlgItemGageBase.cpp')

diff --git a/src/T2DLL/T2DlgItemGageBase.cpp b/src/T2DLL/T2DlgItemGageBase.cpp
index 4ef48e2..faa140a 100644
--- a/src/T2DLL/T2DlgItemGageBase.cpp
+++ b/src/T2DLL/T2DlgItemGageBase.cpp
@@ -1,19 +1,104 @@
 #include "T2DlgItemGageBase.h"
 
-T2DlgItemGageBase::T2DlgItemGageBase(T2TowerDoc*, T2ImageObj*, CPalette*) {
+T2DlgItemGageBase::T2DlgItemGageBase(T2TowerDoc* towerDoc, T2ImageObj* imageObj, CPalette* palette)
+    : T2DlgItem(towerDoc, imageObj, palette)
+{
 }
 
-/*virtual*/ int T2DlgItemGageBase::OnT2DlgItemEraseBkgnd(CDC*) {
+/*virtual*/ BOOL T2DlgItemGageBase::OnT2DlgItemEraseBkgnd(CDC* dc) {
+    CRect clientRect;
+    GetClientRect(clientRect);
+
+    int save = dc->SaveDC();
+    dc->SelectPalette(mPalette, false);
+    dc->RealizePalette();
+
+    CRect interior = clientRect;
+    if (IsDrawInterior())
+        DrawInterior(dc, interior);
+
+    dc->RestoreDC(save);
+    return true;
 }
 
-/*virtual*/ void T2DlgItemGageBase::DrawInterior(CDC*, const CRect&) {
+/*virtual*/ void T2DlgItemGageBase::DrawInterior(CDC* dc, const CRect& rect) {
+    dc->FillSolidRect(rect, RGB(255, 255, 255));
+
+    int pos = CalcPos(rect, GetMinValue(), GetMaxValue(), GetValue());
+    CRect rect2(rect.left, rect.top, rect.left + pos, rect.bottom);
+    dc->FillSolidRect(rect2, GetGageColor(GetValue()));
+
+    DrawBorderLines(dc, rect);
 }
 
-void T2DlgItemGageBase::DrawBorderLines(CDC*, const CRect&) {
+void T2DlgItemGageBase::DrawBorderLines(CDC* dc, const CRect& rect) {
+    CPen pen;
+    pen.CreatePen(PS_SOLID, 0, PALETTEINDEX(255));
+
+    HPEN prevPen = *dc->SelectObject(&pen);
+
+    int bluePos = CalcPos(rect, GetMinValue(), GetMaxValue(), GetBlueValue());
+    dc->MoveTo(bluePos, rect.top);
+    dc->LineTo(bluePos, rect.bottom - 1);
+
+    int yellowPos = CalcPos(rect, GetMinValue(), GetMaxValue(), GetYellowValue());
+    dc->MoveTo(yellowPos, rect.top);
+    dc->LineTo(yellowPos, rect.bottom - 1);
+
+    dc->MoveTo(rect.left, rect.top);
+    dc->LineTo(rect.left, rect.bottom - 1);
+    dc->LineTo(rect.right - 1, rect.bottom - 1);
+    dc->LineTo(rect.right - 1, rect.top);
+    dc->LineTo(rect.left, rect.top);
+
+    dc->SelectObject(prevPen);
 }
 
-void T2DlgItemGageBase::DrawValueByText(CDC*, const CRect&) {
+void T2DlgItemGageBase::DrawValueByText(CDC* dc, const CRect& rect) {
+    CRect smallerRect = rect;
+    smallerRect.DeflateRect(2, 0);
+
+    CString text;
+    text.Format("%d", GetValue());
+
+    CFont font;
+    font.CreateFont(
+        -(rect.Height() - 4),
+        0,
+        0,
+        0,
+        FW_BOLD,
+        false,
+        false,
+        false,
+        DEFAULT_CHARSET,
+        OUT_TT_PRECIS,
+        CLIP_TT_ALWAYS,
+        PROOF_QUALITY,
+        DEFAULT_PITCH,
+        "Arial"
+        );
+
+    HFONT prevFont = *dc->SelectObject(&font);
+    dc->SetBkMode(TRANSPARENT);
+    dc->SetTextColor(PALETTERGB(255, 255, 255));
+    for (int x = -1; x <= 1; x++) {
+        for (int y = -1; y <= 1; y++) {
+            CRect shadowRect = smallerRect;
+            shadowRect.OffsetRect(x, y);
+            dc->DrawText(text, shadowRect, DT_RIGHT | DT_VCENTER | DT_SINGLELINE);
+        }
+    }
+
+    CRect textRect = smallerRect;
+    dc->SetTextColor(PALETTEINDEX(255));
+    dc->DrawText(text, textRect, DT_RIGHT | DT_VCENTER | DT_SINGLELINE);
+
+    dc->SelectObject(prevFont);
 }
 
-int T2DlgItemGageBase::CalcPos(const CRect&, int, int, int) {
+int T2DlgItemGageBase::CalcPos(const CRect& rect, int minValue, int maxValue, int value) {
+    return (minValue < maxValue)
+        ? (rect.left + ((rect.Width() * (value - minValue)) / (maxValue - minValue)))
+        : 0;
 }
-- 
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