Small tweaks

6 years ago · cd8ca47e76
8 changed files with 625 additions and 13 deletions
--- a/Cargo.lock
+++ b/Cargo.lock
@ -0,0 +1,580 @@
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--- a/TODO.md
+++ b/TODO.md
@ -1,9 +1,8 @@
 # Code
 * Break off example app from emigui_wasm
 * Try it on iPhone
-* Dynamic fonts:
-	* Font options (sizes)
-	* Read ttf via web?
+* Read TTF from browser?
+* Device pixel density aware font rendering

 # Additional bindings, e.g. Piston

--- a/emigui/src/emigui.rs
+++ b/emigui/src/emigui.rs
@ -28,6 +28,7 @@ fn show_options(options: &mut LayoutOptions, gui: &mut Region) {
    gui.add(Slider::new(&mut options.indent, 0.0, 100.0).text("indent"));
    gui.add(Slider::new(&mut options.button_padding.x, 0.0, 20.0).text("button_padding.x"));
    gui.add(Slider::new(&mut options.button_padding.y, 0.0, 20.0).text("button_padding.y"));
+    gui.add(Slider::new(&mut options.clickable_diameter, 0.0, 60.0).text("clickable_diameter"));
    gui.add(Slider::new(&mut options.start_icon_width, 0.0, 60.0).text("start_icon_width"));
 }

@ -175,10 +176,10 @@ impl Emigui {
        });

        region.foldable("Fonts", |gui| {
-            show_font_texture(self.texture(), gui);
            let old_font_sizes = self.data.fonts.sizes();
            let mut new_font_sizes = old_font_sizes.clone();
            show_font_sizes(&mut new_font_sizes, gui);
+            show_font_texture(self.texture(), gui);
            if *old_font_sizes != new_font_sizes {
                let mut new_data = (*self.data).clone();
                let fonts = Fonts::from_sizes(new_font_sizes);
--- a/emigui/src/fonts.rs
+++ b/emigui/src/fonts.rs
@ -31,7 +31,7 @@ impl Fonts {
        let mut sizes = FontSizes::new();
        sizes.insert(TextStyle::Body, 18.0);
        sizes.insert(TextStyle::Button, 22.0);
-        sizes.insert(TextStyle::Heading, 30.0);
+        sizes.insert(TextStyle::Heading, 28.0);
        Fonts::from_sizes(sizes)
    }

--- a/emigui/src/layout.rs
+++ b/emigui/src/layout.rs
@ -31,7 +31,7 @@ pub struct LayoutOptions {
    /// Anything clickable is (at least) this wide.
    pub clickable_diameter: f32,

-    /// Checkboxed, radio button and foldables have an icon at the start.
+    /// Checkboxes, radio button and foldables have an icon at the start.
    /// The text starts after this many pixels.
    pub start_icon_width: f32,
 }
@ -43,7 +43,7 @@ impl Default for LayoutOptions {
            button_padding: vec2(5.0, 3.0),
            item_spacing: vec2(8.0, 4.0),
            indent: 21.0,
-            clickable_diameter: 38.0,
+            clickable_diameter: 34.0,
            start_icon_width: 20.0,
        }
    }
@ -239,7 +239,7 @@ where
        align: Align::Min,
        cursor: window_pos + window_padding,
        bounding_size: vec2(0.0, 0.0),
-        available_space: vec2(400.0, std::f32::INFINITY), // TODO: popup/tooltip width
+        available_space: vec2(data.input.screen_size.x.min(350.0), std::f32::INFINITY), // TODO: popup/tooltip width
    };

    add_contents(&mut popup_region);
--- a/emigui/src/math.rs
+++ b/emigui/src/math.rs
@ -90,6 +90,8 @@ pub fn vec2(x: f32, y: f32) -> Vec2 {
    Vec2 { x, y }
 }

+// ----------------------------------------------------------------------------
+
 #[derive(Clone, Copy, Debug, Default, Deserialize, Serialize)]
 pub struct Rect {
    pub pos: Vec2,
@ -132,8 +134,36 @@ impl Rect {
    pub fn size(&self) -> Vec2 {
        self.size
    }
+
+    // Convenience functions:
+    pub fn left_top(&self) -> Vec2 {
+        vec2(self.min().x, self.min().y)
+    }
+    pub fn center_top(&self) -> Vec2 {
+        vec2(self.center().x, self.min().y)
+    }
+    pub fn right_top(&self) -> Vec2 {
+        vec2(self.max().x, self.min().y)
+    }
+    pub fn left_center(&self) -> Vec2 {
+        vec2(self.min().x, self.center().y)
+    }
+    pub fn right_center(&self) -> Vec2 {
+        vec2(self.max().x, self.center().y)
+    }
+    pub fn left_bottom(&self) -> Vec2 {
+        vec2(self.min().x, self.max().y)
+    }
+    pub fn center_bottom(&self) -> Vec2 {
+        vec2(self.center().x, self.max().y)
+    }
+    pub fn right_bottom(&self) -> Vec2 {
+        vec2(self.max().x, self.max().y)
+    }
 }

+// ----------------------------------------------------------------------------
+
 pub fn lerp(min: f32, max: f32, t: f32) -> f32 {
    (1.0 - t) * min + t * max
 }
--- a/emigui/src/widgets.rs
+++ b/emigui/src/widgets.rs
@ -81,9 +81,11 @@ impl Widget for Button {
        let text_style = TextStyle::Button;
        let font = &region.fonts()[text_style];
        let (text, text_size) = font.layout_multiline(&self.text, region.width());
-        let interact =
-            region.reserve_space(text_size + 2.0 * region.options().button_padding, Some(id));
-        let text_cursor = interact.rect.min() + region.options().button_padding;
+        let padding = region.options().button_padding;
+        let mut size = text_size + 2.0 * padding;
+        size.y = size.y.max(region.options().clickable_diameter);
+        let interact = region.reserve_space(size, Some(id));
+        let text_cursor = interact.rect.left_center() + vec2(padding.x, -0.5 * text_size.y);
        region.add_graphic(GuiCmd::Button { interact });
        region.add_text(text_cursor, text_style, text, self.text_color);
        region.response(interact)
--- a/emigui_wasm/src/webgl.rs
+++ b/emigui_wasm/src/webgl.rs
@ -49,8 +49,8 @@ impl Painter {
        gl.bind_texture(Gl::TEXTURE_2D, Some(&gl_texture));
        gl.tex_parameteri(Gl::TEXTURE_2D, Gl::TEXTURE_WRAP_S, Gl::CLAMP_TO_EDGE as i32);
        gl.tex_parameteri(Gl::TEXTURE_2D, Gl::TEXTURE_WRAP_T, Gl::CLAMP_TO_EDGE as i32);
-        // gl.tex_parameteri(Gl::TEXTURE_2D, Gl::TEXTURE_MIN_FILTER, Gl::NEAREST as i32);
-        gl.tex_parameteri(Gl::TEXTURE_2D, Gl::TEXTURE_MIN_FILTER, Gl::LINEAR as i32);
+        gl.tex_parameteri(Gl::TEXTURE_2D, Gl::TEXTURE_MIN_FILTER, Gl::NEAREST as i32);
+        gl.tex_parameteri(Gl::TEXTURE_2D, Gl::TEXTURE_MAG_FILTER, Gl::NEAREST as i32);

        // --------------------------------------------------------------------