Add messagebox, bugfixes

2024-10-02 00:53:11 +02:00
parent 24f569070f
commit f23c378020
6 changed files with 239 additions and 5 deletions
--- a/src/Editor/MessageBox.php
+++ b/src/Editor/MessageBox.php
@ -0,0 +1,110 @@
+<?php
+
+namespace NoccyLabs\JEdit\Editor;
+
+use NoccyLabs\JEdit\Terminal\Terminal;
+
+class MessageBox
+{
+    
+    const U_CORNER_TOPLEFT = "\u{250c}";
+    const U_CORNER_TOPRIGHT = "\u{2510}";
+    const U_CORNER_BOTTOMLEFT = "\u{2514}";
+    const U_CORNER_BOTTOMRIGHT = "\u{2518}";
+
+    const U_CORNER_ROUNDED_TOPLEFT = "\u{256d}";
+    const U_CORNER_ROUNDED_TOPRIGHT = "\u{256e}";
+    const U_CORNER_ROUNDED_BOTTOMLEFT = "\u{2570}";
+    const U_CORNER_ROUNDED_BOTTOMRIGHT = "\u{256f}";
+
+    const U_EDGE_HORIZONTAL = "\u{2500}";
+
+    const U_EDGE_VERTICAL = "\u{2502}";
+    const U_EDGE_VERTICAL_SCROLL = "\u{2591}";
+    const U_EDGE_VERTICAL_THUMB = "\u{2593}";
+    const U_EDGE_VERTICAL_LEFT = "\u{2524}";
+    const U_EDGE_VERTICAL_RIGHT = "\u{251c}";
+
+    private int $scroll = 0;
+
+    public function __construct(private Terminal $terminal, private string $text, private string $title = 'Message')
+    {
+    }
+
+    public function display(int $left, int $top, int $width, int $height = 0): void
+    {
+        $wrapped = explode("\n", wordwrap($this->text, $width - 4, cut_long_words:true));
+        
+        if ($height == 0) $height = count($wrapped) + 4;
+        
+        $maxScroll = (count($wrapped) > $height) ? count($wrapped) - $height + 4 : 0;
+
+        $this->redraw($left, $top, $width, $height, $wrapped, $this->title, $maxScroll);
+
+        $showing = true;
+        while ($showing) {
+            while (null === ($ch = $this->terminal->readKey())) {
+                usleep(10000);
+            }
+            if (mb_strlen($ch) == 1) {
+                if ($ch == "\x03") {
+                    $showing = false;
+                }
+                if ($ch == "\r") {
+                    $showing = false;
+                }
+            } else {
+                if ($ch == "k{UP}") {
+                    $this->scroll--;
+                    if ($this->scroll < 0) $this->scroll = 0;
+                    $this->redraw($left, $top, $width, $height, $wrapped, $this->title, $maxScroll);
+                } elseif ($ch == "k{DOWN}") {
+                    $this->scroll++;
+                    if ($this->scroll > $maxScroll) $this->scroll = $maxScroll; 
+                    $this->redraw($left, $top, $width, $height, $wrapped, $this->title, $maxScroll);
+                }
+            }
+        }
+
+
+        return;
+    }
+
+    private function redraw(int $left, int $top, int $width, int $height, array $wrapped, string $title, int $maxScroll) {
+        $visibleItems = $height - 4;
+
+        // calculate scrollbar thumb positions
+        $scrollTop = ($this->scroll / ($maxScroll + $visibleItems));
+        $scrollVisible = $visibleItems / count($wrapped); // / $visibleItems;
+        $scrollBottom = $scrollTop + $scrollVisible;
+        $thumbTop = round($scrollTop * $visibleItems);
+        $thumbBottom = round($visibleItems * $scrollBottom);
+
+        echo "\e[40;37m";
+        $this->terminal
+            ->writeAt($left, $top + 0, self::U_CORNER_ROUNDED_TOPLEFT.str_repeat(self::U_EDGE_HORIZONTAL,$width - 2).self::U_CORNER_ROUNDED_TOPRIGHT)
+            ->writeAt($left, $top + 1, self::U_EDGE_VERTICAL.str_repeat(" ",$width - 2).self::U_EDGE_VERTICAL)
+            ->writeAt($left + 2, $top + 1, "\e[1m" . $this->title . "\e[22m")
+            ->writeAt($left, $top + 2, self::U_EDGE_VERTICAL_RIGHT.str_repeat(self::U_EDGE_HORIZONTAL,$width - 2).self::U_EDGE_VERTICAL_LEFT)
+            ->writeAt($left, $top + $height - 1, self::U_CORNER_BOTTOMLEFT.str_repeat(self::U_EDGE_HORIZONTAL,$width - 2).self::U_CORNER_BOTTOMRIGHT)
+            ;
+        for ($n = 0; $n < $visibleItems; $n++) {
+            if (isset($wrapped[$n+$this->scroll])) {
+                $item = " " . $wrapped[$n+$this->scroll]??null;
+                $item = $item . str_repeat(" ", $width - 2 - mb_strlen($item)) . "\e[40;37m";
+            } else {
+                $item = str_repeat(" ", $width - 2)."\e[40;37m";
+            }
+            if ($n >= $thumbTop && $n <= $thumbBottom) {
+                $scrollbar = "\e[97;1m".self::U_EDGE_VERTICAL_THUMB."\e[40;37;22m";
+            } else {
+                $scrollbar = "\e[37;2m".self::U_EDGE_VERTICAL_SCROLL."\e[40;37;22m";
+            }
+            $this->terminal
+                ->writeAt($left, $top + 3 + $n, self::U_EDGE_VERTICAL.$item.$scrollbar);
+        }
+
+        echo "\e[0m";
+    }
+
+}