1 files changed, 281 insertions, 0 deletions

diff --git a/src/ui/labelwidget.c b/src/ui/labelwidget.c
new file mode 100644
index 00000000..7b64857b
--- /dev/null
+++ b/src/ui/labelwidget.c
@@ -0,0 +1,281 @@
+#include "labelwidget.h"
+#include "text.h"
+#include "color.h"
+#include "paint.h"
+#include "app.h"
+#include "util.h"
+
+iLocalDef iInt2 padding_(void) { return init_I2(3 * gap_UI, gap_UI); }
+
+struct Impl_LabelWidget {
+    iWidget widget;
+    iString label;
+    int     font;
+    int     key;
+    int     kmods;
+    iString command;
+    iClick  click;
+};
+
+iDefineObjectConstructionArgs(LabelWidget,
+                              (const char *label, int key, int kmods, const char *cmd),
+                              label, key, kmods, cmd)
+
+static iBool checkModifiers_(int have, int req) {
+    return keyMods_Sym(req) == keyMods_Sym(have);
+}
+
+static void trigger_LabelWidget_(const iLabelWidget *d) {
+    postCommand_Widget(&d->widget, "%s", cstr_String(&d->command));
+}
+
+static iBool processEvent_LabelWidget_(iLabelWidget *d, const SDL_Event *ev) {
+    if (isCommand_UserEvent(ev, "metrics.changed")) {
+        updateSize_LabelWidget(d);
+    }
+    if (!isEmpty_String(&d->command)) {
+        switch (processEvent_Click(&d->click, ev)) {
+            case started_ClickResult:
+                setFlags_Widget(&d->widget, pressed_WidgetFlag, iTrue);
+                return iTrue;
+            case aborted_ClickResult:
+                setFlags_Widget(&d->widget, pressed_WidgetFlag, iFalse);
+                return iTrue;
+            case finished_ClickResult:
+                setFlags_Widget(&d->widget, pressed_WidgetFlag, iFalse);
+                trigger_LabelWidget_(d);
+                return iTrue;
+            case double_ClickResult:
+                return iTrue;
+            default:
+                break;
+        }
+        switch (ev->type) {
+            case SDL_KEYDOWN: {
+                const int mods = ev->key.keysym.mod;
+                if (d->key && ev->key.keysym.sym == d->key && checkModifiers_(mods, d->kmods)) {
+                    trigger_LabelWidget_(d);
+                    return iTrue;
+                }
+                break;
+            }
+        }
+    }
+    return processEvent_Widget(&d->widget, ev);
+}
+
+static void keyStr_LabelWidget_(const iLabelWidget *d, iString *str) {
+#if defined (iPlatformApple)
+    if (d->kmods & KMOD_CTRL) {
+        appendChar_String(str, 0x2303);
+    }
+    if (d->kmods & KMOD_ALT) {
+        appendChar_String(str, 0x2325);
+    }
+    if (d->kmods & KMOD_SHIFT) {
+        appendChar_String(str, 0x21e7);
+    }
+    if (d->kmods & KMOD_GUI) {
+        appendChar_String(str, 0x2318);
+    }
+#else
+    if (d->kmods & KMOD_CTRL) {
+        appendCStr_String(str, "Ctrl+");
+    }
+    if (d->kmods & KMOD_ALT) {
+        appendCStr_String(str, "Alt+");
+    }
+    if (d->kmods & KMOD_SHIFT) {
+        appendCStr_String(str, "Shift+");
+    }
+    if (d->kmods & KMOD_GUI) {
+        appendCStr_String(str, "Meta+");
+    }
+#endif
+    if (d->key == 0x20) {
+        appendCStr_String(str, "Space");
+    }
+    else if (d->key == SDLK_LEFT) {
+        appendChar_String(str, 0x2190);
+    }
+    else if (d->key == SDLK_RIGHT) {
+        appendChar_String(str, 0x2192);
+    }
+    else if (d->key < 128 && (isalnum(d->key) || ispunct(d->key))) {
+        appendChar_String(str, upper_Char(d->key));
+    }
+    else if (d->key == SDLK_BACKSPACE) {
+        appendChar_String(str, 0x232b); /* Erase to the Left */
+    }
+    else if (d->key == SDLK_DELETE) {
+        appendChar_String(str, 0x2326); /* Erase to the Right */
+    }
+    else {
+        appendCStr_String(str, SDL_GetKeyName(d->key));
+    }
+}
+
+static void draw_LabelWidget_(const iLabelWidget *d) {
+    const iWidget *w = constAs_Widget(d);
+    draw_Widget(w);
+    const iBool isButton = d->click.button != 0;
+    const int   flags    = flags_Widget(w);
+    const iRect bounds   = bounds_Widget(w);
+    iRect       rect     = bounds;
+    if (isButton) {
+        shrink_Rect(&rect, divi_I2(gap2_UI, 4));
+        adjustEdges_Rect(&rect, gap_UI / 8, 0, -gap_UI / 8, 0);
+    }
+    iPaint p;
+    init_Paint(&p);
+    int bg     = 0;
+    int fg     = gray75_ColorId;
+    int frame  = isButton ? gray50_ColorId : gray25_ColorId;
+    int frame2 = isButton ? black_ColorId : frame;
+    if (flags & selected_WidgetFlag) {
+        bg = teal_ColorId;
+        fg = white_ColorId;
+        frame = isButton ? cyan_ColorId : frame;
+    }
+    if (isHover_Widget(w)) {
+        if (flags & frameless_WidgetFlag) {
+            bg = teal_ColorId;
+            fg = white_ColorId;
+            if (isButton && flags & selected_WidgetFlag) frame = white_ColorId;
+        }
+        else {
+            if (frame != cyan_ColorId) {
+                if (startsWith_String(&d->label, orange_ColorEscape)) {
+                    frame = orange_ColorId;
+                    frame2 = brown_ColorId;
+                }
+                else {
+                    frame  = cyan_ColorId;
+                    frame2 = teal_ColorId;
+                }
+            }
+            else {
+                frame  = white_ColorId;
+                frame2 = cyan_ColorId;
+            }
+        }
+    }
+    if (flags & pressed_WidgetFlag) {
+        bg = orange_ColorId | permanent_ColorId;
+        if (isButton) frame = bg;
+        fg = black_ColorId | permanent_ColorId;
+    }
+    if (bg) {
+        fillRect_Paint(&p, rect, bg);
+    }
+    if (~flags & frameless_WidgetFlag) {
+        iRect frameRect = adjusted_Rect(rect, zero_I2(), init1_I2(-1));
+        if (isButton) {
+            iInt2 points[] = {
+                bottomLeft_Rect(frameRect), topLeft_Rect(frameRect), topRight_Rect(frameRect),
+                bottomRight_Rect(frameRect), bottomLeft_Rect(frameRect)
+            };
+            drawLines_Paint(&p, points + 2, 3, frame2);
+            drawLines_Paint(&p, points, 3, frame);
+        }
+        else {
+            drawRect_Paint(&p, frameRect, frame);
+        }
+    }
+    setClip_Paint(&p, rect);
+    if (flags & alignLeft_WidgetFlag) {
+        draw_Text(d->font, add_I2(bounds.pos, padding_()), fg, cstr_String(&d->label));
+        if ((flags & drawKey_WidgetFlag) && d->key) {
+            iString str;
+            init_String(&str);
+            keyStr_LabelWidget_(d, &str);
+            draw_Text(uiShortcuts_FontId, negX_I2(add_I2(topRight_Rect(bounds), negX_I2(padding_()))),
+                      flags & pressed_WidgetFlag ? fg : cyan_ColorId, cstr_String(&str));
+            deinit_String(&str);
+        }
+    }
+    else if (flags & alignRight_WidgetFlag) {
+        draw_Text(
+            d->font,
+            mul_I2(init_I2(-1, 1), add_I2(topRight_Rect(bounds), negX_I2(padding_()))),
+            fg,
+            cstr_String(&d->label));
+    }
+    else {
+        drawCentered_Text(d->font, bounds, fg, cstr_String(&d->label));
+    }
+    clearClip_Paint(&p);
+}
+
+void updateSize_LabelWidget(iLabelWidget *d) {
+    iWidget *w = as_Widget(d);
+    const int flags = flags_Widget(w);
+    iInt2 size = add_I2(measure_Text(d->font, cstr_String(&d->label)), muli_I2(padding_(), 2));
+    if ((flags & drawKey_WidgetFlag) && d->key) {
+        iString str;
+        init_String(&str);
+        keyStr_LabelWidget_(d, &str);
+        size.x += 2 * gap_UI + measure_Text(uiShortcuts_FontId, cstr_String(&str)).x;
+        deinit_String(&str);
+    }
+    if (~flags & fixedWidth_WidgetFlag) {
+        w->rect.size.x = size.x;
+    }
+    if (~flags & fixedHeight_WidgetFlag) {
+        w->rect.size.y = size.y;
+    }
+}
+
+void init_LabelWidget(iLabelWidget *d, const char *label, int key, int kmods, const char *cmd) {
+    init_Widget(&d->widget);
+    d->font = default_FontId;
+    initCStr_String(&d->label, label);
+    if (cmd) {
+        initCStr_String(&d->command, cmd);
+    }
+    else {
+        init_String(&d->command);
+    }
+    d->key = key;
+    d->kmods = kmods;
+    init_Click(&d->click, d, !isEmpty_String(&d->command) ? SDL_BUTTON_LEFT : 0);
+    setFlags_Widget(&d->widget, hover_WidgetFlag, d->click.button != 0);
+    updateSize_LabelWidget(d);
+}
+
+void deinit_LabelWidget(iLabelWidget *d) {
+    deinit_String(&d->label);
+    deinit_String(&d->command);
+}
+
+void setFont_LabelWidget(iLabelWidget *d, int fontId) {
+    d->font = fontId;
+    updateSize_LabelWidget(d);
+}
+
+void setText_LabelWidget(iLabelWidget *d, const iString *text) {
+    updateText_LabelWidget(d, text);
+    updateSize_LabelWidget(d);
+}
+
+void updateText_LabelWidget(iLabelWidget *d, const iString *text) {
+    set_String(&d->label, text);
+}
+
+void updateTextCStr_LabelWidget(iLabelWidget *d, const char *text) {
+    setCStr_String(&d->label, text);
+}
+
+void setTextCStr_LabelWidget(iLabelWidget *d, const char *text) {
+    setCStr_String(&d->label, text);
+    updateSize_LabelWidget(d);
+}
+
+const iString *command_LabelWidget(const iLabelWidget *d) {
+    return &d->command;
+}
+
+iBeginDefineSubclass(LabelWidget, Widget)
+    .processEvent = (iAny *) processEvent_LabelWidget_,
+    .draw         = (iAny *) draw_LabelWidget_,
+iEndDefineSubclass(LabelWidget)