Draw soft popup menu border shadows

8 files changed, 50 insertions, 16 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8c248738..2a5401d1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -73,6 +73,7 @@ set (EMBED_RESOURCES
     res/fonts/SourceSansPro-Regular.ttf
     res/fonts/SourceSansPro-Bold.ttf
     res/fonts/Symbola.ttf
+    res/shadow.png
 )
 if ((UNIX AND NOT APPLE) OR MSYS)
     list (APPEND EMBED_RESOURCES res/lagrange-64.png)
diff --git a/res/shadow.png b/res/shadow.png
new file mode 100644
index 00000000..47c8ea66
--- /dev/null
+++ b/res/shadow.png
diff --git a/src/ui/paint.c b/src/ui/paint.c
index 1ac12a66..36e3f703 100644
--- a/src/ui/paint.c
+++ b/src/ui/paint.c
@@ -108,6 +108,33 @@ void fillRect_Paint(const iPaint *d, iRect rect, int color) {
     SDL_RenderFillRect(renderer_Paint_(d), (SDL_Rect *) &rect);
 }
 
+void drawSoftShadow_Paint(const iPaint *d, iRect inner, int thickness, int color, int alpha) {
+    SDL_Renderer *render = renderer_Paint_(d);
+    SDL_Texture *shadow = get_Window()->borderShadow;
+    const iInt2 size = size_SDLTexture(shadow);
+    const iRect outer = expanded_Rect(inner, init1_I2(thickness));
+    const iColor clr = get_Color(color);
+    SDL_SetTextureColorMod(shadow, clr.r, clr.g, clr.b);
+    SDL_SetTextureAlphaMod(shadow, alpha);
+    /* Classic stretched segmented border. */
+    SDL_RenderCopy(render, shadow, &(SDL_Rect){ 0, 0, size.x / 2, size.y / 2},
+                   &(SDL_Rect){ outer.pos.x, outer.pos.y, thickness, thickness });
+    SDL_RenderCopy(render, shadow, &(SDL_Rect){ size.x / 2, 0, 1, size.y / 2},
+                   &(SDL_Rect){ inner.pos.x, outer.pos.y, inner.size.x, thickness });
+    SDL_RenderCopy(render, shadow, &(SDL_Rect){ size.x / 2, 0, size.x / 2, size.y / 2},
+                   &(SDL_Rect){ right_Rect(outer) - thickness, outer.pos.y, thickness, thickness });
+    SDL_RenderCopy(render, shadow, &(SDL_Rect){ size.x / 2, size.y / 2, size.x / 2, 1 },
+                   &(SDL_Rect){ right_Rect(inner), inner.pos.y, thickness, inner.size.y });
+    SDL_RenderCopy(render, shadow, &(SDL_Rect){ size.x / 2, size.y / 2, size.x / 2, size.y / 2},
+                   &(SDL_Rect){ right_Rect(inner), bottom_Rect(inner), thickness, thickness });
+    SDL_RenderCopy(render, shadow, &(SDL_Rect){ size.x / 2, size.y / 2, 1, size.y / 2},
+                   &(SDL_Rect){ inner.pos.x, bottom_Rect(inner), inner.size.x, thickness });
+    SDL_RenderCopy(render, shadow, &(SDL_Rect){ 0, size.y / 2, size.x / 2, size.y / 2},
+                   &(SDL_Rect){ outer.pos.x, bottom_Rect(inner), thickness, thickness });
+    SDL_RenderCopy(render, shadow, &(SDL_Rect){ 0, size.y / 2, size.x / 2, 1 },
+                   &(SDL_Rect){ outer.pos.x, inner.pos.y, thickness, inner.size.y });
+}
+
 void drawLines_Paint(const iPaint *d, const iInt2 *points, size_t count, int color) {
     setColor_Paint_(d, color);
     SDL_RenderDrawLines(renderer_Paint_(d), (const SDL_Point *) points, count);
diff --git a/src/ui/paint.h b/src/ui/paint.h
index 89a01da6..90cc2aef 100644
--- a/src/ui/paint.h
+++ b/src/ui/paint.h
@@ -47,6 +47,7 @@ void    unsetClip_Paint     (iPaint *);
 void    drawRect_Paint          (const iPaint *, iRect rect, int color);
 void    drawRectThickness_Paint (const iPaint *, iRect rect, int thickness, int color);
 void    fillRect_Paint          (const iPaint *, iRect rect, int color);
+void    drawSoftShadow_Paint    (const iPaint *, iRect rect, int thickness, int color, int alpha);
 
 void    drawLines_Paint (const iPaint *, const iInt2 *points, size_t count, int color);
 
diff --git a/src/ui/util.c b/src/ui/util.c
index 13d1bf78..8fbe5d41 100644
--- a/src/ui/util.c
+++ b/src/ui/util.c
@@ -395,6 +395,7 @@ static iBool isCommandIgnoredByMenus_(const char *cmd) {
            startsWith_CStr(cmd, "feeds.update.") ||
            equal_Command(cmd, "bookmarks.request.started") ||
            equal_Command(cmd, "bookmarks.request.finished") ||
+           equal_Command(cmd, "bookmarks.changed") ||
            equal_Command(cmd, "document.autoreload") ||
            equal_Command(cmd, "document.reload") ||
            equal_Command(cmd, "document.request.started") ||
@@ -459,10 +460,13 @@ static iWidget *makeMenuSeparator_(void) {
 
 iWidget *makeMenu_Widget(iWidget *parent, const iMenuItem *items, size_t n) {
     iWidget *menu = new_Widget();
-    setBackgroundColor_Widget(menu, uiBackground_ColorId);
+    setBackgroundColor_Widget(menu, uiBackgroundMenu_ColorId);
     if (deviceType_App() != desktop_AppDeviceType) {
         setPadding1_Widget(menu, 2 * gap_UI);
     }
+    else {
+        setPadding1_Widget(menu, gap_UI / 2);
+    }
     const iBool isPortraitPhone = (deviceType_App() == phone_AppDeviceType && isPortrait_App());
     int64_t itemFlags = (deviceType_App() != desktop_AppDeviceType ? 0 : 0) |
                         (isPortraitPhone ? extraPadding_WidgetFlag : 0);
diff --git a/src/ui/widget.c b/src/ui/widget.c
index fa0a20c9..81853c2a 100644
--- a/src/ui/widget.c
+++ b/src/ui/widget.c
@@ -858,13 +858,7 @@ void drawBackground_Widget(const iWidget *d) {
     if (shadowBorder) {
         iPaint p;
         init_Paint(&p);
-        const iBool isLight = isLight_ColorTheme(colorTheme_App());
-        p.alpha = isLight ? 0xc : 0x20;
-        SDL_SetRenderDrawBlendMode(renderer_Window(get_Window()), SDL_BLENDMODE_BLEND);
-        iRect shadowRect = expanded_Rect(bounds_Widget(d), mulf_I2(gap2_UI, 8));
-//        shadowRect.pos.y += gap_UI * 4;
-        fillRect_Paint(&p, shadowRect, /*isLight ? white_ColorId :*/ black_ColorId);
-        SDL_SetRenderDrawBlendMode(renderer_Window(get_Window()), SDL_BLENDMODE_NONE);
+        drawSoftShadow_Paint(&p, bounds_Widget(d), 12 * gap_UI, black_ColorId, 30);
     }
     if (fadeBackground) {
         iPaint p;
diff --git a/src/ui/window.c b/src/ui/window.c
index e7945c62..d67d3f5b 100644
--- a/src/ui/window.c
+++ b/src/ui/window.c
@@ -1328,13 +1328,12 @@ iBool create_Window_(iWindow *d, iRect rect, uint32_t flags) {
 }
 
 #if defined (iPlatformLinux) || defined (LAGRANGE_CUSTOM_FRAME)
-static SDL_Surface *loadAppIconSurface_(int resized) {
-    const iBlock *icon = &imageLagrange64_Embedded;
-    int           w, h, num;
-    stbi_uc *     pixels = stbi_load_from_memory(
-        constData_Block(icon), size_Block(icon), &w, &h, &num, STBI_rgb_alpha);
+static SDL_Surface *loadImage_(const iBlock *data, int resized) {
+    int      w = 0, h = 0, num = 4;
+    stbi_uc *pixels = stbi_load_from_memory(
+        constData_Block(data), size_Block(data), &w, &h, &num, STBI_rgb_alpha);
     if (resized) {
-        stbi_uc * rsPixels = malloc(num * resized * resized);
+        stbi_uc *rsPixels = malloc(num * resized * resized);
         stbir_resize_uint8(pixels, w, h, 0, rsPixels, resized, resized, 0, num);
         free(pixels);
         pixels = rsPixels;
@@ -1414,7 +1413,7 @@ void init_Window(iWindow *d, iRect rect) {
 #if defined (iPlatformLinux)
     SDL_SetWindowMinimumSize(d->win, minSize.x * d->pixelRatio, minSize.y * d->pixelRatio);
     /* Load the window icon. */ {
-        SDL_Surface *surf = loadAppIconSurface_(0);
+        SDL_Surface *surf = loadImage_(&imageLagrange64_Embedded, 0);
         SDL_SetWindowIcon(d->win, surf);
         free(surf->pixels);
         SDL_FreeSurface(surf);
@@ -1433,11 +1432,18 @@ void init_Window(iWindow *d, iRect rect) {
     setupUserInterface_Window(d);
     postCommand_App("bindings.changed"); /* update from bindings */
     updateRootSize_Window_(d, iFalse);
+    /* Load the border shadow texture. */ {
+        SDL_Surface *surf = loadImage_(&imageShadow_Embedded, 0);
+        d->borderShadow = SDL_CreateTextureFromSurface(d->render, surf);
+        SDL_SetTextureBlendMode(d->borderShadow, SDL_BLENDMODE_BLEND);
+        free(surf->pixels);
+        SDL_FreeSurface(surf);
+    }
     d->appIcon = NULL;
 #if defined (LAGRANGE_CUSTOM_FRAME)
     /* Load the app icon for drawing in the title bar. */
     if (prefs_App()->customFrame) {
-        SDL_Surface *surf = loadAppIconSurface_(appIconSize_());
+        SDL_Surface *surf = loadImage_(&imageLagrange64_Embedded, appIconSize_());
         SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "0");
         d->appIcon = SDL_CreateTextureFromSurface(d->render, surf);
         free(surf->pixels);
diff --git a/src/ui/window.h b/src/ui/window.h
index 9ac3bc00..cd2e3814 100644
--- a/src/ui/window.h
+++ b/src/ui/window.h
@@ -72,6 +72,7 @@ struct Impl_Window {
     uint32_t      frameTime;
     double        presentTime;
     SDL_Texture * appIcon;
+    SDL_Texture * borderShadow;
     SDL_Cursor *  cursors[SDL_NUM_SYSTEM_CURSORS];
     SDL_Cursor *  pendingCursor;
     int           loadAnimTimer;