the shortcut

src/graphics/ui/elements/Button.cpp

@@ -0,0 +1,98 @@
+#include "Button.hpp"
+
+#include "Label.hpp"
+#include "../../core/GfxContext.h"
+#include "../../core/Batch2D.h"
+
+using namespace gui;
+
+Button::Button(std::shared_ptr<UINode> content, glm::vec4 padding)
+    : Panel(glm::vec2(), padding, 0) {
+    glm::vec4 margin = getMargin();
+    setSize(content->getSize()+
+            glm::vec2(padding[0]+padding[2]+margin[0]+margin[2],
+                      padding[1]+padding[3]+margin[1]+margin[3]));
+    add(content);
+    setScrollable(false);
+    setHoverColor(glm::vec4(0.05f, 0.1f, 0.15f, 0.75f));
+    setPressedColor(glm::vec4(0.0f, 0.0f, 0.0f, 0.95f));
+    content->setInteractive(false);
+}
+
+Button::Button(
+    std::wstring text, 
+    glm::vec4 padding, 
+    onaction action,
+    glm::vec2 size
+) : Panel(size, padding, 0) 
+{
+    if (size.y < 0.0f) {
+        size = glm::vec2(
+            glm::max(padding.x + padding.z + text.length()*8, size.x),
+            glm::max(padding.y + padding.w + 16, size.y)
+        );
+    }
+    setSize(size);
+
+    if (action) {
+        listenAction(action);
+    }
+    setScrollable(false);
+
+    label = std::make_shared<Label>(text);
+    label->setAlign(Align::center);
+    label->setSize(size-glm::vec2(padding.z+padding.x, padding.w+padding.y));
+    label->setInteractive(false);
+    add(label);
+    setHoverColor(glm::vec4(0.05f, 0.1f, 0.15f, 0.75f));
+    setPressedColor(glm::vec4(0.0f, 0.0f, 0.0f, 0.95f));
+}
+
+void Button::setText(std::wstring text) {
+    if (label) {
+        label->setText(text);
+    }
+}
+
+std::wstring Button::getText() const {
+    if (label) {
+        return label->getText();
+    }
+    return L"";
+}
+
+Button* Button::textSupplier(wstringsupplier supplier) {
+    if (label) {
+        label->textSupplier(supplier);
+    }
+    return this;
+}
+
+void Button::refresh() {
+    Panel::refresh();
+    if (label) {
+        label->setSize(size-glm::vec2(padding.z+padding.x, padding.w+padding.y));
+    }
+}
+
+void Button::drawBackground(const GfxContext* pctx, Assets* assets) {
+    glm::vec2 pos = calcPos();
+    auto batch = pctx->getBatch2D();
+    batch->texture(nullptr);
+    batch->setColor(isPressed() ? pressedColor : (hover ? hoverColor : color));
+    batch->rect(pos.x, pos.y, size.x, size.y);
+}
+
+void Button::setTextAlign(Align align) {
+    if (label) {
+        label->setAlign(align);
+        refresh();
+    }
+}
+
+Align Button::getTextAlign() const {
+    if (label) {
+        return label->getAlign();
+    }
+    return Align::left;
+}