track a few things

[blobs.git] / src / ui / widgets.cpp

diff --git a/src/ui/widgets.cpp b/src/ui/widgets.cpp
index 94c4182ec0c1911aecba6a56b58811ce61a3901e..a81defc0e549cc983795808a71c45988c154e4f7 100644 (file)
--- a/src/ui/widgets.cpp
+++ b/src/ui/widgets.cpp
@@ -1,4 +1,5 @@
 #include "Label.hpp"
+#include "Meter.hpp"
 #include "Panel.hpp"
 #include "Widget.hpp"
 
@@ -6,6 +7,8 @@
 #include "../graphics/Font.hpp"
 #include "../graphics/Viewport.hpp"
 
+#include <iomanip>
+#include <sstream>
 #include <glm/gtx/transform.hpp>
 
 
@@ -24,30 +27,30 @@ Label::Label(const graphics::Font &f)
 Label::~Label() {
 }
 
-Label &Label::Text(const std::string &t) {
+Label *Label::Text(const std::string &t) {
        if (text != t) {
                dirty = true;
        }
        text = t;
-       return *this;
+       return this;
 }
 
-Label &Label::Font(const graphics::Font &f) {
+Label *Label::Font(const graphics::Font &f) {
        if (font != &f) {
                dirty = true;
        }
        font = &f;
-       return *this;
+       return this;
 }
 
-Label &Label::Foreground(const glm::vec4 &c) {
+Label *Label::Foreground(const glm::vec4 &c) {
        fg_color = c;
-       return *this;
+       return this;
 }
 
-Label &Label::Background(const glm::vec4 &c) {
+Label *Label::Background(const glm::vec4 &c) {
        bg_color = c;
-       return *this;
+       return this;
 }
 
 glm::vec2 Label::Size() {
@@ -59,11 +62,12 @@ glm::vec2 Label::Size() {
 }
 
 void Label::Draw(app::Assets &assets, graphics::Viewport &viewport) noexcept {
+       if (text.empty()) return;
        Update();
        glm::vec2 size = Size();
 
        assets.shaders.alpha_sprite.Activate();
-       assets.shaders.alpha_sprite.SetM(glm::translate(AlignedPosition())
+       assets.shaders.alpha_sprite.SetM(glm::translate(glm::vec3(Position() + (size * 0.5f), -ZIndex()))
                * glm::scale(glm::vec3(size.x, size.y, 1.0f)));
        assets.shaders.alpha_sprite.SetTexture(tex);
        assets.shaders.alpha_sprite.SetFgColor(fg_color);
@@ -72,12 +76,54 @@ void Label::Draw(app::Assets &assets, graphics::Viewport &viewport) noexcept {
 }
 
 void Label::Update() {
-       if (!dirty) return;
+       if (!dirty || text.empty()) return;
        font->Render(text, tex);
        dirty = false;
 }
 
 
+Meter::Meter()
+: fill_color(1.0f)
+, border_color(1.0f)
+, size(3.0f)
+, padding(1.0f)
+, border(1.0f)
+, value(0.0f) {
+}
+
+Meter::~Meter() {
+}
+
+glm::vec2 Meter::Size() {
+       return size + (2.0f * padding) + glm::vec2(2.0f * border);
+}
+
+void Meter::Draw(app::Assets &assets, graphics::Viewport &viewport) noexcept {
+       glm::vec2 fullsize = Size();
+       assets.shaders.canvas.Activate();
+       assets.shaders.canvas.ZIndex(ZIndex());
+
+       if (border > 0.0f) {
+               assets.shaders.canvas.SetColor(border_color);
+               assets.shaders.canvas.DrawRect(
+                       Position() + glm::vec2(border * 0.5f),
+                       Position() + fullsize - glm::vec2(border * 0.5f),
+                       border
+               );
+       }
+
+       if (value > 0.0f) {
+               glm::vec2 bottom_right = Position() + fullsize - glm::vec2(border) - padding;
+               bottom_right.x -= size.x * (1.0f - value);
+               assets.shaders.canvas.SetColor(fill_color);
+               assets.shaders.canvas.FillRect(
+                       Position() + glm::vec2(border) + padding,
+                       bottom_right
+               );
+       }
+}
+
+
 Panel::Panel()
 : widgets()
 , bg_color(0.0f, 0.0f, 0.0f, 0.0f)
@@ -90,7 +136,7 @@ Panel::Panel()
 Panel::~Panel() {
 }
 
-Panel &Panel::Add(Widget *w) {
+Panel *Panel::Add(Widget *w) {
        std::unique_ptr<Widget> widget(w);
        glm::vec2 wsize = widget->Size();
        if (dir == HORIZONTAL) {
@@ -101,35 +147,43 @@ Panel &Panel::Add(Widget *w) {
                size.y += wsize.y;
        }
        widgets.emplace_back(std::move(widget));
-       return *this;
+       return this;
+}
+
+Panel *Panel::Clear() {
+       widgets.clear();
+       size = glm::vec2(0.0f);
+       return this;
 }
 
-Panel &Panel::Background(const glm::vec4 &c) {
+Panel *Panel::Background(const glm::vec4 &c) {
        bg_color = c;
-       return *this;
+       return this;
 }
 
-Panel &Panel::Padding(const glm::vec2 &p) {
+Panel *Panel::Padding(const glm::vec2 &p) {
        padding = p;
-       return *this;
+       return this;
 }
 
-Panel &Panel::Spacing(float s) {
+Panel *Panel::Spacing(float s) {
        spacing = s;
-       return *this;
+       return this;
 }
 
-Panel &Panel::Direction(Dir d) {
+Panel *Panel::Direction(Dir d) {
        dir = d;
-       Relayout();
-       return *this;
+       Layout();
+       return this;
 }
 
 glm::vec2 Panel::Size() {
-       return 2.0f * padding + glm::vec2(0.0f, (widgets.size() - 1) * spacing) + size;
+       glm::vec2 space(0.0f);
+       space[dir] = (widgets.size() - 1) * spacing;
+       return (2.0f * padding) + space + size;
 }
 
-void Panel::Relayout() {
+void Panel::Layout() {
        size = glm::vec2(0.0f);
        if (dir == HORIZONTAL) {
                for (auto &w : widgets) {
@@ -147,21 +201,18 @@ void Panel::Relayout() {
 }
 
 void Panel::Draw(app::Assets &assets, graphics::Viewport &viewport) noexcept {
+       // TODO: separate draw and layout, it's inefficient and the wrong tree order anyway
+       Layout();
        if (bg_color.a > 0.0f) {
-               glm::vec2 fullsize = Size();
-               assets.shaders.plain_color.Activate();
-               assets.shaders.plain_color.SetM(glm::translate(AlignedPosition())
-                       * glm::scale(glm::vec3(fullsize.x, fullsize.y, 1.0f)));
-               assets.shaders.plain_color.SetColor(bg_color);
-               assets.shaders.plain_color.DrawRect();
+               assets.shaders.canvas.Activate();
+               assets.shaders.canvas.ZIndex(ZIndex());
+               assets.shaders.canvas.SetColor(bg_color);
+               assets.shaders.canvas.FillRect(Position(), Position() + Size());
        }
 
-       glm::vec3 cursor = TopLeft();
-       cursor.x += padding.x;
-       cursor.y += padding.y;
-       cursor.z -= 1.0f;
+       glm::vec2 cursor = Position() + padding;
        for (auto &w : widgets) {
-               w->Position(cursor).Origin(Gravity::NORTH_WEST);
+               w->Position(cursor)->ZIndex(ZIndex() + 1.0f);
                w->Draw(assets, viewport);
                cursor[dir] += w->Size()[dir] + spacing;
        }
@@ -170,20 +221,11 @@ void Panel::Draw(app::Assets &assets, graphics::Viewport &viewport) noexcept {
 
 Widget::Widget()
 : pos(0.0f)
-, origin(Gravity::CENTER) {
+, z_index(1.0f)  {
 }
 
 Widget::~Widget() {
 }
 
-glm::vec3 Widget::AlignedPosition() noexcept {
-       return align(origin, Size(), pos);
-}
-
-glm::vec3 Widget::TopLeft() noexcept {
-       glm::vec2 size = Size();
-       return align(origin, size, pos) - glm::vec3(size * 0.5f, 0.0f);
-}
-
 }
 }