Created ICanvas for use in deffering rendering

include/libpdw/gui/canvas.hpp

@@ -23,10 +23,11 @@
 #include <glez/color.hpp>
 #include <glez/font.hpp>
 
+#include "gui/icanvas.hpp"
 #include "gui/tooltip.hpp"
 #include "gui/widgets/basewindow.hpp"
 
-class Canvas : public CBaseWindow {
+class Canvas : public CBaseWindow, public ICanvas {
 public:
     Canvas();
     void Setup();
@@ -38,13 +39,14 @@ public:
     std::chrono::steady_clock::time_point m_iPressedFrame[CatKey::CATKEY_COUNT];
     std::chrono::steady_clock::time_point m_iSentFrame[CatKey::CATKEY_COUNT];
     bool m_bKeysInit = false;
+
     int m_iMouseX;
     int m_iMouseY;
     [[deprecated]] int mouse_dx;
     [[deprecated]] int mouse_dy;
     bool fake_scroll = false;
 
-    glez::rgba GetColor() const;
+    glez::rgba GetColor() const override;
     bool gui_rainbow = true;
     glez::rgba gui_color;
 
@@ -52,9 +54,18 @@ public:
 
     virtual void Update() override;
     virtual void OnKeyPress(CatKey key, bool repeat) override;
-    virtual void Draw(int x, int y) override;
+    virtual void Draw(ICanvas*) override;
     inline virtual void MoveChildren() override {};
 
+    void Line(TranslationMatrix tm, glez::rgba color) override;
+    void Rect(TranslationMatrix tm, glez::rgba color, RectType rt = RectType::Filled) override;
+    void Rect(TranslationMatrix tm, glez::rgba color, glez::texture& tx) override;
+    void Circle(std::pair<int, int> center, float radius, glez::rgba color, int steps = 16) override;
+    std::pair<int, int> String(std::pair<int, int> src, const std::string& str, glez::rgba color, std::optional<glez::rgba> outline = glez::color::black) override;
+    std::pair<int, int> StringSize(const std::string& str) override;
+    const ICanvas& GetBackground() const override { return *this; }
+    const ICanvas& GetForeground() const override { return *this; }
+
 private:
     glez::font font;
 };

include/libpdw/gui/icanvas.hpp

@@ -0,0 +1,91 @@
+
+/*
+ * Libpdw: Primitives Done Well!
+ * Copyright (C) 2022 Rebekah Rowe
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <chrono>
+#include <glez/color.hpp>
+#include <glez/font.hpp>
+#include <glez/texture.hpp>
+
+#include "gui/tooltip.hpp"
+#include "gui/widgets/basewindow.hpp"
+
+class CanvasLayer {
+public:
+    using TranslationMatrix = std::pair<std::pair<int, int>, std::pair<int, int>>; // src, dest
+public:
+    enum class RectType { Filled,
+        Outline };
+    virtual void Line(TranslationMatrix, glez::rgba color) = 0;
+    virtual void Rect(TranslationMatrix, glez::rgba color, RectType = RectType::Filled) = 0;
+    virtual void Rect(TranslationMatrix, glez::rgba color, glez::texture&) = 0;
+    virtual void Circle(std::pair<int, int> center, float radius, glez::rgba color, int steps = 16) = 0;
+    virtual std::pair<int, int> String(std::pair<int, int> src, const std::string& str, glez::rgba color, std::optional<glez::rgba> outline = glez::color::black) = 0;
+    virtual std::pair<int, int> StringSize(const std::string& str) = 0;
+    virtual glez::rgba GetColor() const = 0;
+};
+
+class ICanvas : public CanvasLayer {
+public:
+    // The plan is to "traverse" the canvas tree. Super easy way to manage themes maybe. We'll see!
+    virtual const ICanvas& GetBackground() const = 0;
+    virtual const ICanvas& GetForeground() const = 0;
+};
+
+inline std::pair<int, int> operator+(std::pair<int, int> v1, std::pair<int, int> v2) {
+    return { v1.first + v2.first, v1.second + v2.second };
+}
+
+class CanvasOffset : public ICanvas {
+    ICanvas* parent;
+    std::pair<int, int> offset;
+    TranslationMatrix Offset(TranslationMatrix tm) {
+        return { this->offset + tm.first, tm.second };
+    }
+
+public:
+    CanvasOffset(ICanvas* parent, std::pair<int, int> offset)
+        : parent(parent)
+        , offset(offset) { }
+    virtual void Line(TranslationMatrix tm, glez::rgba color) override {
+        this->parent->Line(this->Offset(tm), color);
+    }
+    virtual void Rect(TranslationMatrix tm, glez::rgba color, RectType rt = RectType::Filled) override {
+        this->parent->Rect(this->Offset(tm), color, rt);
+    }
+    virtual void Rect(TranslationMatrix tm, glez::rgba color, glez::texture& tx) override {
+        this->parent->Rect(this->Offset(tm), color, tx);
+    }
+    virtual void Circle(std::pair<int, int> center, float radius, glez::rgba color, int steps = 16) override {
+        this->parent->Circle(this->offset + center, radius, color, steps);
+    }
+    virtual std::pair<int, int> String(std::pair<int, int> src, const std::string& str, glez::rgba color, std::optional<glez::rgba> outline = glez::color::black) override {
+        return this->parent->String(this->offset + src, str, color, outline);
+    }
+    virtual std::pair<int, int> StringSize(const std::string& str) override {
+        return this->parent->StringSize(str);
+    }
+    virtual glez::rgba GetColor() const override { return this->parent->GetColor(); }
+    virtual const ICanvas& GetBackground() const override { return this->parent->GetBackground(); }
+    virtual const ICanvas& GetForeground() const override { return this->parent->GetForeground(); }
+
+public:
+    decltype(offset) GetOffset() const { return offset; }
+};

include/libpdw/gui/listmenu/item.hpp

@@ -35,7 +35,7 @@ public:
 
     Item(std::string name = "ncc_menu_item");
 
-    virtual void Draw(int x, int y) override;
+    virtual void Draw(ICanvas*) override;
     virtual void HandleCustomEvent(std::string_view event) override;
 };
 

include/libpdw/gui/listmenu/itemsublist.hpp

@@ -35,7 +35,7 @@ public:
     virtual void SetParent(IWidget*) override;
     virtual bool IsHovered() const override;
     virtual void Update() override;
-    virtual void Draw(int x, int y) override;
+    virtual void Draw(ICanvas*) override;
     virtual void OnKeyPress(CatKey code, bool repeated) override;
     virtual void OnMouseEnter();
     virtual void OnMouseLeave();

include/libpdw/gui/listmenu/itemtitle.hpp

@@ -29,7 +29,7 @@ class ItemTitle : public Item {
 public:
     ItemTitle(std::string title);
 
-    virtual void Draw(int x, int y) override;
+    virtual void Draw(ICanvas*) override;
 
 public:
     const std::string title;

include/libpdw/gui/listmenu/itemvariable.hpp

@@ -38,7 +38,7 @@ public:
     virtual void OnMousePress() override;
     virtual void OnFocusLose() override;
     virtual void OnKeyPress(CatKey key, bool repeat) override;
-    virtual void Draw(int x, int y) override;
+    virtual void Draw(ICanvas*) override;
 
 public:
     ui::BaseVar& catvar;

include/libpdw/gui/listmenu/list.hpp

@@ -53,7 +53,7 @@ public:
     virtual void OnMouseEnter() override;
     virtual void OnMouseLeave() override;
     virtual void OnMouseMove(std::pair<int, int>) override;
-    virtual void Draw(int x, int y) override;
+    virtual void Draw(ICanvas*) override;
     virtual void Update() override;
     virtual void MoveChildren() override;
     virtual void SetParent(IWidget* parent) override;

include/libpdw/gui/ncc/background.hpp

@@ -42,7 +42,7 @@ public:
     Background();
     ~Background();
     virtual bool AlwaysVisible() const override;
-    virtual void Draw(int x, int y) override;
+    virtual void Draw(ICanvas*) override;
     virtual void Update() override;
     void MakeParticle();
     void KillParticle(Particle* flake);

include/libpdw/gui/ncc/logo.hpp

@@ -29,7 +29,7 @@ class Logo : public CBaseWidget {
 public:
     Logo(IWidget*);
     virtual bool AlwaysVisible() const override;
-    virtual void Draw(int x, int y) override;
+    virtual void Draw(ICanvas*) override;
     virtual void OnMouseMove(std::pair<int, int>) override;
     glez::texture texture;
 };

include/libpdw/gui/tabbedmenu/menucontainer.hpp

@@ -29,6 +29,6 @@ public:
 
     virtual inline void SortByZIndex() override {};
     virtual void MoveChildren() override;
-    virtual void Draw(int x, int y) override;
+    virtual void Draw(ICanvas*) override;
     int columns;
 };

include/libpdw/gui/widgets/basebutton.hpp

@@ -36,7 +36,7 @@ public:
     CBaseButton(std::string name = "unnamed", IWidget* parent = nullptr, std::string text = "", ButtonCallbackFn_t callback = nullptr)
         : CBaseButton(parent, name, text, callback) { }
 
-    virtual void Draw(int x, int y) override;
+    virtual void Draw(ICanvas*) override;
     virtual void OnMousePress() override;
 
     void SetCallback(ButtonCallbackFn_t callback);

include/libpdw/gui/widgets/basecontainer.hpp

@@ -40,7 +40,7 @@ public:
     virtual IWidget* ChildByPoint(int x, int y);
 
     virtual bool ConsumesKey(CatKey key);
-    virtual void Draw(int x, int y);
+    virtual void Draw(ICanvas*);
     virtual void DrawBounds(int x, int y);
     virtual void Hide();
     virtual void OnFocusLose();

include/libpdw/gui/widgets/basewidget.hpp

@@ -34,7 +34,7 @@ public:
     CBaseWidget(std::string name = "unnamed", IWidget* parent = nullptr);
 
     virtual void Update();
-    inline virtual void Draw(int x, int y) {};
+    virtual void Draw(ICanvas*) { }
     virtual void DrawBounds(int x, int y);
 
     inline virtual KeyValues* Props() const {

include/libpdw/gui/widgets/basewindow.hpp

@@ -29,6 +29,6 @@ public:
 
     virtual void OnFocusGain() override;
     virtual void OnFocusLose() override;
-    virtual void Draw(int x, int y) override;
+    virtual void Draw(ICanvas*) override;
     virtual void MoveChildren() override;
 };

include/libpdw/gui/widgets/checkbox.hpp

@@ -37,7 +37,7 @@ public:
     void SetCallback(CheckboxCallbackFn_t callback);
 
     virtual void OnMousePress();
-    virtual void Draw(int x, int y);
+    virtual void Draw(ICanvas*);
 
     CheckboxCallbackFn_t m_pCallback;
     bool checked;

include/libpdw/gui/widgets/dropdown.hpp

@@ -43,7 +43,7 @@ public:
     void ShowList();
     void SetCallback(DropdownCallbackFn_t callback);
 
-    virtual void Draw(int x, int y);
+    virtual void Draw(ICanvas*);
     virtual void OnFocusLose();
 
     DropdownCallbackFn_t m_pDropdownCallback;

include/libpdw/gui/widgets/dropdownlist.hpp

@@ -29,7 +29,7 @@ public:
     CDropdownList(std::string name = "unnamed", CDropdown* menu = nullptr, int offset = 0);
     ~CDropdownList();
 
-    virtual void Draw(int x, int y);
+    virtual void Draw(ICanvas*);
     virtual void MoveChildren();
     inline virtual void SortByZIndex() override {};
     inline virtual bool DoesStealFocus() { return false; }

include/libpdw/gui/widgets/iwidget.hpp

@@ -34,12 +34,13 @@ enum PositionMode {
 
 class KeyValues;
 class Canvas;
+class ICanvas;
 class IWidget {
 public:
     virtual ~IWidget();
 
     virtual void Update() = 0;
-    virtual void Draw(int x, int y) = 0;
+    virtual void Draw(ICanvas*) = 0;
     virtual void DrawBounds(int x, int y) = 0;
 
     virtual KeyValues* Props() const = 0;

include/libpdw/gui/widgets/keyinput.hpp

@@ -38,7 +38,7 @@ public:
     KeyInputCallbackFn_t m_pCallback;
 
     virtual void OnKeyPress(CatKey key, bool repeat) override;
-    virtual void Draw(int x, int y) override;
+    virtual void Draw(ICanvas*) override;
     virtual void OnMousePress() override;
     virtual void OnFocusLose() override;
     virtual bool ConsumesKey(CatKey key) const override;

include/libpdw/gui/widgets/slider.hpp

@@ -38,7 +38,7 @@ public:
     void SetCallback(SliderCallbackFn_t callback);
 
     virtual void Update();
-    virtual void Draw(int x, int y);
+    virtual void Draw(ICanvas*);
 
     SliderCallbackFn_t m_pCallback;
 

include/libpdw/gui/widgets/textinput.hpp

@@ -32,7 +32,7 @@ public:
         : CTextInput(parent, name) { }
 
     virtual void OnKeyPress(CatKey key, bool repeat);
-    virtual void Draw(int x, int y);
+    virtual void Draw(ICanvas*);
     virtual bool ConsumesKey(CatKey key);
 
     void PutChar(char ch);

include/libpdw/gui/widgets/textlabel.hpp

@@ -34,7 +34,7 @@ public:
     void SetAutoSize(bool autosize);
     void SetCentered(bool centered);
 
-    virtual void Draw(int x, int y);
+    virtual void Draw(ICanvas*);
 
 private:
     bool autosize;

include/libpdw/gui/widgets/titlebar.hpp

@@ -28,7 +28,7 @@ class CTitleBar : public CBaseWidget {
 public:
     CTitleBar(IWidget* parent, std::string title);
 
-    virtual void Draw(int x, int y);
+    virtual void Draw(ICanvas*);
     virtual void OnMouseMove(std::pair<int, int>);
     virtual void Update();
 

src/gui/canvas.cpp

@@ -170,7 +170,7 @@ void Canvas::Update() {
     tooltip->Hide();
     CBaseWindow::Update();
 
-    this->Draw(0, 0);
+    this->Draw((ICanvas*)this);
 
     // Draw Mouse
     glez::draw::rect(m_iMouseX - 5, m_iMouseY - 5, 10, 10, Transparent(glez::color::black));
@@ -180,11 +180,11 @@ void Canvas::Update() {
         this->DrawBounds(0, 0);
 }
 
-void Canvas::Draw(int x, int y) {
+void Canvas::Draw(ICanvas* canvas) {
     if (tooltip->IsVisible()) {
         tooltip->SetOffset(this->m_iMouseX + 24, this->m_iMouseY + 8);
     }
-    CBaseContainer::Draw(x, y);
+    CBaseContainer::Draw(canvas);
 }
 
 static auto start_time = std::chrono::steady_clock::now();

src/gui/icanvas.cpp

@@ -0,0 +1,52 @@
+
+/*
+ * Libpdw: Primitives Done Well!
+ * Copyright (C) 2022 Rebekah Rowe
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <glez/draw.hpp>
+
+#include "gui/icanvas.hpp"
+#include "gui/canvas.hpp"
+
+void Canvas::Line(TranslationMatrix tm, glez::rgba color) {
+    glez::draw::line(tm.first.first, tm.first.second, tm.second.first, tm.second.second, color, 1);
+}
+void Canvas::Rect(TranslationMatrix tm, glez::rgba color, RectType rt) {
+    if (rt == RectType::Filled)
+        glez::draw::rect(tm.first.first, tm.first.second, tm.second.first, tm.second.second, color);
+    else if (rt == RectType::Outline)
+        glez::draw::rect_outline(tm.first.first, tm.first.second, tm.second.first, tm.second.second, color, 1);
+}
+void Canvas::Rect(TranslationMatrix tm, glez::rgba color, glez::texture& tx) {
+    glez::draw::rect_textured(tm.first.first, tm.first.second, tm.second.first, tm.second.second, color, tx, 0, 0, tx.width, tx.height, 0.0f);
+}
+void Canvas::Circle(std::pair<int, int> center, float radius, glez::rgba color, int steps) {
+    glez::draw::circle(center.first, center.second, radius, color, 1, steps);
+}
+std::pair<int, int> Canvas::String(std::pair<int, int> src, const std::string& str, glez::rgba color, std::optional<glez::rgba> outline) {
+    std::pair<float, float> ret;
+    if (outline)
+        glez::draw::outlined_string(src.first, src.second, str, this->GetFont(), color, *outline, &ret.first, &ret.second);
+    else
+        glez::draw::string(src.first, src.second, str, this->GetFont(), color, &ret.first, &ret.second);
+    return ret;
+}
+std::pair<int, int> Canvas::StringSize(const std::string& str) {
+    std::pair<float, float> ret;
+    this->GetFont().stringSize(str, &ret.first, &ret.second);
+    return ret;
+}

src/gui/listmenu/item.cpp

@@ -35,12 +35,13 @@ Item::Item(std::string name)
     SetMaxSize(psize_x, psize_y);
 }
 
-void Item::Draw(int x, int y) {
+void Item::Draw(ICanvas* canvas) {
     const auto& size = GetSize();
     // draw::DrawRect(x, y, size.first, size.second, colors::red);
-    glez::draw::rect(x, y, size.first, size.second, glez::rgba(0, 0, 0, 55));
+    auto zero = std::pair<int, int> { 0, 0 };
+    canvas->Rect({ zero, size }, glez::rgba(0, 0, 0, 55));
     if (IsHovered()) {
-        glez::draw::rect(x, y, size.first, size.second, Transparent(this->GetCanvas()->GetColor(), 0.32f));
+        canvas->Rect({ zero, size }, Transparent(this->GetCanvas()->GetColor(), 0.32f));
     }
 }
 

src/gui/listmenu/itemsublist.cpp

@@ -59,15 +59,15 @@ void ItemSublist::Update() {
     }
 }
 
-void ItemSublist::Draw(int x, int y) {
+void ItemSublist::Draw(ICanvas* canvas) {
-    Item::Draw(x, y);
+    Item::Draw(canvas);
     List* parent = dynamic_cast<List*>(GetParent());
     if (!parent)
         throw std::runtime_error("Sublist parent can't be casted to List!");
     const auto& size = GetSize();
     if (parent->open_sublist == list)
-        glez::draw::rect(x, y, size.first, size.second, Transparent(this->GetCanvas()->GetColor(), 0.5f));
+        canvas->Rect({ { 0, 0 }, size }, Transparent(this->GetCanvas()->GetColor(), 0.5f));
-    glez::draw::string(x + 2, y, (IsHovered() ? "[-] " : "[+] ") + title, this->GetCanvas()->GetFont(), glez::color::white, nullptr, nullptr);
+    canvas->String({ 2, 0 }, (IsHovered() ? "[-] " : "[+] ") + title, glez::color::white);
 }
 
 void ItemSublist::OnKeyPress(CatKey code, bool repeated) {

src/gui/listmenu/itemtitle.cpp

@@ -33,14 +33,14 @@ ItemTitle::ItemTitle(std::string title)
     this->brackets = false;
 }
 
-void ItemTitle::Draw(int x, int y) {
+void ItemTitle::Draw(ICanvas* canvas) {
-    Item::Draw(x, y);
+    Item::Draw(canvas);
     // nailed it
     bool brackets3 = this->brackets;
     std::string str = (brackets3 ? ">>> " : ">> ") + title + (brackets3 ? " <<<" : " <<");
     std::pair<float, float> size;
     this->GetCanvas()->GetFont().stringSize(str, &size.first, &size.second);
-    glez::draw::string(x + ((Item::size_x - size.first) / 2), y, str, this->GetCanvas()->GetFont(), glez::color::white, nullptr, nullptr);
+    canvas->String({ ((Item::size_x - size.first) / 2), 0 }, str, glez::color::white);
 }
 
 }

src/gui/listmenu/itemvariable.cpp

@@ -114,8 +114,8 @@ void ItemVariable::OnKeyPress(CatKey key, bool repeat) {
     }
 }
 
-void ItemVariable::Draw(int x, int y) {
+void ItemVariable::Draw(ICanvas* canvas) {
-    Item::Draw(x, y);
+    Item::Draw(canvas);
     std::string val = "[UNDEFINED]";
     switch (catvar.type) {
     case ui::BaseVar::Type::kBool:
@@ -137,7 +137,7 @@ void ItemVariable::Draw(int x, int y) {
         }
     } break;
     }
-    glez::draw::string(x + 2, y, (std::string(catvar.gui_name) + ": " + val), this->GetCanvas()->GetFont(), glez::color::white, nullptr, nullptr);
+    canvas->String({ 2, 0 }, (std::string(catvar.gui_name) + ": " + val), glez::color::white);
 }
 
 }

src/gui/listmenu/list.cpp

@@ -230,11 +230,11 @@ void List::OnMouseLeave() {
     }
 }
 
-void List::Draw(int x, int y) {
+void List::Draw(ICanvas* canvas) {
     // const auto& size = GetSize();
-    glez::draw::rect_outline(x, y, 2 + Item::size_x, this->items * Item::size_y + 2, this->GetCanvas()->GetColor(), 1);
+    canvas->Rect({ { 0, 0 }, { 2 + Item::size_x, this->items * Item::size_y + 2 } }, this->GetCanvas()->GetColor(), CanvasLayer::RectType::Outline);
     for (int i = 1; i < this->items; i++) {
-        glez::draw::line(x + 1, y + Item::size_y * i, Item::size_x, 0, this->GetCanvas()->GetColor(), 1);
+        canvas->Line({ { 1, Item::size_y * i }, { Item::size_x, 0 } }, this->GetCanvas()->GetColor());
     }
     // CBaseContainer::Draw(x, y);
     for (int i = 0; i < ChildCount(); i++) {
@@ -245,11 +245,13 @@ void List::Draw(int x, int y) {
             throw std::runtime_error("Invalid cast in NCC-List:Draw!");
         }
         const auto& offset = item->GetOffset();
-        item->Draw(x + offset.first, y + offset.second);
+        CanvasOffset offsetted_canvas(canvas, offset);
+        item->Draw(&offsetted_canvas);
     }
     if (dynamic_cast<List*>(open_sublist)) {
         const auto& offset = open_sublist->GetOffset();
-        open_sublist->Draw(x + offset.first, y + offset.second);
+        CanvasOffset offsetted_canvas(canvas, offset);
+        open_sublist->Draw(&offsetted_canvas);
     }
 }
 

src/gui/ncc/background.cpp

@@ -89,7 +89,7 @@ Background::~Background() {
     }
 }
 
-void Background::Draw(int x, int y) {
+void Background::Draw(ICanvas* canvas) {
     if (!particles)
         return;
     Particle* current = list;

src/gui/ncc/logo.cpp

@@ -39,9 +39,9 @@ bool Logo::AlwaysVisible() const {
     return (int)logo == 2;
 }
 
-void Logo::Draw(int x, int y) {
+void Logo::Draw(ICanvas* canvas) {
     if (logo)
-        glez::draw::rect_textured(x, y, embeded_logo_png_rgba.width, embeded_logo_png_rgba.height, this->GetCanvas()->GetColor(), this->texture, 0, 0, embeded_logo_png_rgba.width, embeded_logo_png_rgba.height, 0.0f);
+        canvas->Rect({ { 0, 0 }, { embeded_logo_png_rgba.width, embeded_logo_png_rgba.height } }, this->GetCanvas()->GetColor(), this->texture);
 }
 
 void Logo::OnMouseMove(std::pair<int, int> delta) {

src/gui/tabbedmenu/menucontainer.cpp

@@ -48,9 +48,9 @@ void CMenuContainer::MoveChildren() {
     this->columns = columns;
 }
 
-void CMenuContainer::Draw(int x, int y) {
+void CMenuContainer::Draw(ICanvas* canvas) {
-    CBaseContainer::Draw(x, y);
+    CBaseContainer::Draw(canvas);
     for (int i = 0; i < this->columns; i++) {
-        glez::draw::line(x + (350 + 3) * (i + 1), y, 0, GetMaxSize().second, this->GetCanvas()->GetColor(), 1);
+        canvas->Line({ { (350 + 3) * (i + 1), 0 }, { 0, GetMaxSize().second } }, this->GetCanvas()->GetColor());
     }
 }

src/gui/tabbedmenu/menulistentry.cpp

@@ -38,19 +38,21 @@ bool CMenuListEntry::IsSelected() {
     return (dynamic_cast<CMenuList*>(GetParent())->m_pSelected == this);
 }
 
-void CMenuListEntry::Draw(int x, int y) {
+void CMenuListEntry::Draw(ICanvas* canvas) {
     std::pair<float, float> texts;
     this->GetCanvas()->GetFont().stringSize(GetText(), &texts.first, &texts.second);
     auto size = GetSize();
+    auto gui_color = canvas->GetColor();
+    const auto zero = std::pair<int, int> { 0, 0 };
     if (IsSelected()) {
-        glez::draw::line(x, y, size.first, 0, this->GetCanvas()->GetColor(), 1);
+        canvas->Line({ zero, { size.first, 0 } }, gui_color);
-        glez::draw::line(x, y + size.second, size.first, 0, this->GetCanvas()->GetColor(), 1);
+        canvas->Line({ { 0, size.second }, { size.first, 0 } }, gui_color);
-        glez::draw::line(x, y, 0, size.second, this->GetCanvas()->GetColor(), 1);
+        canvas->Line({ zero, { 0, size.second } }, gui_color);
     } else {
-        glez::draw::rect_outline(x, y, size.first, size.second, this->GetCanvas()->GetColor(), 1);
+        canvas->Rect({ zero, size }, gui_color, CanvasLayer::RectType::Outline);
     }
     if (IsHovered()) {
-        glez::draw::rect(x, y, size.first, size.second, Transparent(this->GetCanvas()->GetColor(), 0.25));
+        canvas->Rect({ zero, size }, Transparent(gui_color, 0.25));
     }
-    glez::draw::string(x + (size.first - texts.first) / 2, y + (size.second - texts.second) / 2, GetText().c_str(), this->GetCanvas()->GetFont(), IsSelected() ? glez::color::white : this->GetCanvas()->GetColor(), nullptr, nullptr);
+    canvas->String({ (size.first - texts.first) / 2, (size.second - texts.second) / 2 }, GetText(), IsSelected() ? glez::color::white : gui_color);
 }

src/gui/tabbedmenu/menulistentry.hpp

@@ -30,7 +30,7 @@ public:
     bool IsSelected();
 
     virtual void SetMaxSize(int x, int y) override;
-    virtual void Draw(int x, int y) override;
+    virtual void Draw(ICanvas*) override;
 
 public:
     std::string entry;

src/gui/tooltip.cpp

@@ -50,10 +50,11 @@ void Tooltip::HandleCustomEvent(std::string_view event) {
     }*/
 }
 
-void Tooltip::Draw(int x, int y) {
+void Tooltip::Draw(ICanvas* canvas) {
     const auto& size = GetSize();
-    int originx = x;
+    auto offset = this->GetOffset();
-    int originy = y;
+    int originx = offset.first;
+    int originy = offset.second;
     auto root_size = this->GetCanvas()->GetSize();
     if (originx + size.first > root_size.first)
         originx -= size.first;
@@ -61,9 +62,9 @@ void Tooltip::Draw(int x, int y) {
         originy -= size.second;
     static auto bgcolor = glez::rgba(0, 0, 0, 77); // colors::Create(70, 86, 47, 28);
     static auto fgcolor = glez::rgba(200, 200, 190, 255);
-    glez::draw::rect(x, y, size.first, size.second, bgcolor);
+    canvas->Rect({ { 0, 0 }, size }, bgcolor);
-    glez::draw::rect_outline(x, y, size.first, size.second, this->GetCanvas()->GetColor(), 1);
+    canvas->Rect({ { 0, 0 }, size }, this->GetCanvas()->GetColor(), CanvasLayer::RectType::Outline);
-    glez::draw::string(x + this->padding.first, y + this->padding.second, GetText(), this->GetCanvas()->GetFont(), fgcolor, nullptr, nullptr);
+    canvas->String(this->padding, GetText(), fgcolor);
 }
 
 }

src/gui/tooltip.hpp

@@ -28,7 +28,7 @@ class Tooltip : public CTextLabel {
 public:
     Tooltip();
 
-    virtual void Draw(int x, int y) override;
+    virtual void Draw(ICanvas*) override;
     virtual void HandleCustomEvent(std::string_view event) override;
     inline virtual PositionMode GetPositionMode() const override { return PositionMode::FLOATING; }
     std::pair<int, int> padding;

src/gui/widgets/basebutton.cpp

@@ -35,15 +35,17 @@ void CBaseButton::SetCallback(ButtonCallbackFn_t callback) {
     m_pCallback = callback;
 }
 
-void CBaseButton::Draw(int x, int y) {
+void CBaseButton::Draw(ICanvas* canvas) {
-    glez::rgba textcolor = this->GetCanvas()->GetColor();
+    auto gui_color = canvas->GetColor();
+    auto textcolor = gui_color;
     auto size = GetSize();
+    const auto zero = std::pair<int, int> { 0, 0 };
     if (IsPressed()) {
-        glez::draw::rect(x, y, size.first, size.second, this->GetCanvas()->GetColor());
+        canvas->Rect({ zero, size }, gui_color);
         textcolor = glez::color::white;
     }
-    glez::draw::rect_outline(x, y, size.first, size.second, this->GetCanvas()->GetColor(), 1);
+    canvas->Rect({ zero, size }, gui_color, CanvasLayer::RectType::Outline);
-    glez::draw::string(x + this->padding.first, y + this->padding.second, GetText().c_str(), this->GetCanvas()->GetFont(), textcolor, nullptr, nullptr);
+    canvas->String(this->padding, GetText(), textcolor);
 }
 
 void CBaseButton::OnMousePress() {

src/gui/widgets/basecontainer.cpp

@@ -77,16 +77,17 @@ int CBaseContainer::ChildCount() {
     return m_children.size();
 }
 
-void CBaseContainer::Draw(int x, int y) {
+void CBaseContainer::Draw(ICanvas* canvas) {
     for (auto child : m_children) {
         if (child->IsVisible()) {
             auto off = child->GetOffset();
-            if (AlwaysVisible() || this->GetCanvas()->IsVisible() || child->AlwaysVisible())
+            if (AlwaysVisible() || this->GetCanvas()->IsVisible() || child->AlwaysVisible()) {
-                child->Draw(x + off.first, y + off.second);
+                CanvasOffset offsetted_canvas(canvas, off);
+                child->Draw(&offsetted_canvas);
+            }
         }
     }
 }
-
 void CBaseContainer::DrawBounds(int x, int y) {
     for (auto child : m_children) {
         if (child->IsVisible()) {

src/gui/widgets/basewindow.cpp

@@ -55,10 +55,10 @@ void CBaseWindow::OnFocusLose() {
     CBaseContainer::OnFocusLose();
 }
 
-void CBaseWindow::Draw(int x, int y) {
+void CBaseWindow::Draw(ICanvas* canvas) {
     auto abs = AbsolutePosition();
     auto size = GetSize();
     glez::draw::rect(abs.first, abs.second, size.first, size.second, Transparent(glez::color::black, 0.9));
     glez::draw::rect_outline(abs.first, abs.second, size.first, size.second, this->GetCanvas()->GetColor(), 1);
-    CBaseContainer::Draw(x, y);
+    CBaseContainer::Draw(canvas);
 }

src/gui/widgets/checkbox.cpp

@@ -34,11 +34,11 @@ void CCheckbox::SetWidth(int _width) {
     SetSize(_width, _width);
 }
 
-void CCheckbox::Draw(int x, int y) {
+void CCheckbox::Draw(ICanvas* canvas) {
     auto size = GetSize();
-    glez::draw::rect_outline(x, y, size.first, size.second, this->GetCanvas()->GetColor(), 1);
+    canvas->Rect({ { 0, 0 }, size }, this->GetCanvas()->GetColor(), CanvasLayer::RectType::Outline);
     if (Value()) {
-        glez::draw::rect(x + 3, y + 3, size.first - 6, size.second - 6, this->GetCanvas()->GetColor());
+        canvas->Rect({ { 3, 3 }, { size.first - 6, size.second - 6 } }, this->GetCanvas()->GetColor());
     }
 }
 

src/gui/widgets/dropdown.cpp

@@ -55,16 +55,16 @@ std::string CDropdown::ValueName(int idx) {
     return m_values.at(idx);
 }
 
-void CDropdown::Draw(int x, int y) {
+void CDropdown::Draw(ICanvas* canvas) {
     auto size = GetSize();
     std::pair<float, float> ssize;
     this->GetCanvas()->GetFont().stringSize(ValueName(Value() - this->offset), &ssize.first, &ssize.second);
-    glez::draw::rect(x, y, size.first, size.second, Transparent(glez::color::black));
+    canvas->Rect({ { 0, 0 }, { size } }, Transparent(glez::color::black));
-    glez::draw::rect_outline(x, y, size.first, size.second, this->GetCanvas()->GetColor(), 1);
+    canvas->Rect({ { 0, 0 }, { size } }, this->GetCanvas()->GetColor(), CanvasLayer::RectType::Outline);
-    glez::draw::string(x + (size.first - ssize.first) / 2, y + (size.second - ssize.second) / 2, ValueName(Value() - this->offset), this->GetCanvas()->GetFont(), this->GetCanvas()->GetColor(), nullptr, nullptr);
+    canvas->String({ (size.first - ssize.first) / 2, (size.second - ssize.second) / 2 }, ValueName(Value() - this->offset), this->GetCanvas()->GetColor());
     std::pair<float, float> asize;
     this->GetCanvas()->GetFont().stringSize(">", &asize.first, &asize.second);
-    glez::draw::string(x + size.first - asize.first - 2, y + (size.second - asize.second) / 2, ">", this->GetCanvas()->GetFont(), this->GetCanvas()->GetColor(), nullptr, nullptr);
+    canvas->String({ size.first - asize.first - 2, (size.second - asize.second) / 2 }, ">", this->GetCanvas()->GetColor());
 }
 
 void CDropdown::OnFocusLose() {

src/gui/widgets/dropdownlist.cpp

@@ -52,11 +52,12 @@ void CDropdownList::SetValue(int value) {
     Hide();
 }
 
-void CDropdownList::Draw(int x, int y) {
+void CDropdownList::Draw(ICanvas* canvas) {
     auto size = GetSize();
-    glez::draw::rect(x, y, size.first, size.second, Transparent(glez::color::black, 0.85));
+
-    glez::draw::rect_outline(x, y, size.first, size.second, this->GetCanvas()->GetColor(), 1);
+    canvas->Rect({ { 0, 0 }, size }, Transparent(glez::color::black, 0.85));
-    CBaseContainer::Draw(x, y);
+    canvas->Rect({ { 0, 0 }, size }, this->GetCanvas()->GetColor(), CanvasLayer::RectType::Outline);
+    CBaseContainer::Draw(canvas);
 }
 
 void CDropdownList::MoveChildren() {

src/gui/widgets/keyinput.cpp

@@ -38,7 +38,7 @@ void CKeyInput::SetValue(int value) {
     this->value = value;
 }
 
-void CKeyInput::Draw(int x, int y) {
+void CKeyInput::Draw(ICanvas* canvas) {
     std::string key = "";
     glez::rgba color = glez::color::white;
     if (this->capturing) {
@@ -56,7 +56,7 @@ void CKeyInput::Draw(int x, int y) {
     auto size = GetSize();
     std::pair<float, float> ss;
     this->GetCanvas()->GetFont().stringSize(key, &ss.first, &ss.second);
-    glez::draw::string(x + (size.first - ss.first) / 2, y + (size.second - ss.second) / 2, key, this->GetCanvas()->GetFont(), color, nullptr, nullptr);
+    canvas->String({ (size.first - ss.first) / 2, (size.second - ss.second) / 2 }, key, color);
 }
 
 void CKeyInput::SetCallback(KeyInputCallbackFn_t callback) {

src/gui/widgets/slider.cpp

@@ -90,14 +90,14 @@ void CSlider::Update() {
         m_bDragInit = false;
 }
 
-void CSlider::Draw(int x, int y) {
+void CSlider::Draw(ICanvas* canvas) {
     auto size = GetSize();
-    glez::draw::rect(x, y, size.first, size.second, glez::color::black);
+    canvas->Rect({ { 0, 0 }, size }, glez::color::black);
-    glez::draw::rect(x, y, m_nSliderPos, size.second, this->GetCanvas()->GetColor());
+    canvas->Rect({ { 0, 0 }, { m_nSliderPos, size.second } }, this->GetCanvas()->GetColor());
     char s[256];
     snprintf(s, sizeof(s), "%.2f", Value());
     std::string str(s);
     std::pair<float, float> sl;
     this->GetCanvas()->GetFont().stringSize(str, &sl.first, &sl.second);
-    glez::draw::string(x + (size.first - sl.first) / 2, y + (size.second - sl.second) / 2, str, this->GetCanvas()->GetFont(), glez::color::white, nullptr, nullptr);
+    canvas->String({ (size.first - sl.first) / 2, (size.second - sl.second) / 2 }, str, glez::color::white);
 }

src/gui/widgets/textinput.cpp

@@ -51,15 +51,15 @@ void CTextInput::SetValue(std::string value) {
     this->value = value;
 }
 
-void CTextInput::Draw(int x, int y) {
+void CTextInput::Draw(ICanvas* canvas) {
     std::pair<float, float> wsize;
     this->GetCanvas()->GetFont().stringSize("W", &wsize.first, &wsize.second);
     auto size = GetSize();
     auto color = glez::rgba(0, 0, 0, 80);
     if (IsFocused())
         color = Transparent(this->GetCanvas()->GetColor(), 0.25);
-    glez::draw::rect(x, y, size.first, size.second, color);
+    canvas->Rect({ { 0, 0 }, { size } }, color);
-    glez::draw::rect_outline(x, y, size.first, size.second, this->GetCanvas()->GetColor(), 1);
+    canvas->Rect({ { 0, 0 }, { size } }, this->GetCanvas()->GetColor(), CanvasLayer::RectType::Outline);
     int ml = 0;
     int md = 0;
     std::pair<float, float> dotssize; // TODO static?
@@ -74,9 +74,9 @@ void CTextInput::Draw(int x, int y) {
             ml = i;
     }
     if (ml) {
-        glez::draw::string(x + 2, y + 2, "..." + value.substr(md), this->GetCanvas()->GetFont(), glez::color::white, nullptr, nullptr);
+        canvas->String({ 2, 2 }, "..." + value.substr(md), glez::color::white);
     } else {
-        glez::draw::string(x + 2, y + 2, value, this->GetCanvas()->GetFont(), glez::color::white, nullptr, nullptr); // TODO recalc on update
+        canvas->String({ 2, 2 }, value, glez::color::white); // TODO recalc on update
     }
 }
 

src/gui/widgets/textlabel.cpp

@@ -123,12 +123,12 @@ std::string CTextLabel::GetText() {
     return this->text;
 }
 
-void CTextLabel::Draw(int x, int y) {
+void CTextLabel::Draw(ICanvas* canvas) {
     if (this->centered) {
         auto size = GetSize();
         std::pair<float, float> ssize;
         this->GetCanvas()->GetFont().stringSize(GetText(), &ssize.first, &ssize.second);
-        glez::draw::string(x + (size.first - ssize.first) / 2, y + (size.second - ssize.second) / 2, GetText(), this->GetCanvas()->GetFont(), glez::color::white, nullptr, nullptr);
+        canvas->String({ (size.first - ssize.first) / 2, (size.second - ssize.second) / 2 }, GetText(), glez::color::white);
     } else
-        glez::draw::string(x, y, GetText(), this->GetCanvas()->GetFont(), glez::color::white, nullptr, nullptr);
+        canvas->String({ 0, 0 }, GetText(), glez::color::white);
 }

src/gui/widgets/titlebar.cpp

@@ -29,12 +29,12 @@ CTitleBar::CTitleBar(IWidget* parent, std::string title)
     SetPositionMode(ABSOLUTE);
 }
 
-void CTitleBar::Draw(int x, int y) {
+void CTitleBar::Draw(ICanvas* canvas) {
     auto size = GetSize();
-    glez::draw::rect(x, y, size.first, size.second, this->GetCanvas()->GetColor());
+    canvas->Rect({ { 0, 0 }, { size } }, this->GetCanvas()->GetColor());
     float l, h;
     this->GetCanvas()->GetFont().stringSize(m_strTitle, &l, &h);
-    glez::draw::string(x + (size.first - l) / 2, y + TITLEBAR_PADDING_H, m_strTitle, this->GetCanvas()->GetFont(), glez::color::white, nullptr, nullptr);
+    canvas->String({ (size.first - l) / 2, TITLEBAR_PADDING_H }, m_strTitle, glez::color::white);
 }
 
 void CTitleBar::OnMouseMove(std::pair<int, int> delta) {