From f9cf452af221236291b84c37a9b81dda90120589 Mon Sep 17 00:00:00 2001
From: omigamedev <omarator@gmail.com>
Date: Mon, 24 Jun 2019 23:46:55 +0200
Subject: [PATCH] get/set clipboard, color hex value

---
 data/layout.xml            |  9 +++++++++
 src/canvas.cpp             |  1 +
 src/main.cpp               | 41 ++++++++++++++++++++++++++++++++++++++
 src/node_dialog_picker.cpp | 35 ++++++++++++++++++++++++++++++++
 src/node_dialog_picker.h   |  4 ++++
 src/util.cpp               | 34 +++++++++++++++++++++++++++++++
 src/util.h                 |  5 +++++
 7 files changed, 129 insertions(+)

diff --git a/data/layout.xml b/data/layout.xml
index a8d3c83..b20810f 100644
--- a/data/layout.xml
+++ b/data/layout.xml
@@ -855,6 +855,15 @@
               <slider-h id="rgb-b" width="10" grow="1" value="1"/>
             </node>
           </border>
+          <!--HEX-->
+          <border pad="5" color=".3" margin="10 0 0 0">
+            <node width="100%" pad="2" height="30" dir="row" align="center">
+              <node margin="0 10 0 0"><text text="Hex"/></node>
+              <text id="txt-hex" text="#FFFFFF" align="center" pad="5" grow="1" height="30" color="1"/>
+              <button id="btn-hex-copy" text="Copy" width="60" height="100%"/>
+              <button id="btn-hex-paste" text="Paste" width="60" height="100%"/>
+            </node>
+          </border>
         </border>
         <!--<node height="33" dir="row" align="flex-end" justify="flex-end">
           <button id="btn-ok" text="Reset" width="60" height="30" margin="0 10 0 0"/>
diff --git a/src/canvas.cpp b/src/canvas.cpp
index 21e5262..7281f58 100644
--- a/src/canvas.cpp
+++ b/src/canvas.cpp
@@ -1510,6 +1510,7 @@ void Canvas::FloodData::apply()
         glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, rtt.getWidth(), rtt.getHeight(),
             GL_RGBA, GL_UNSIGNED_BYTE, rgb[plane].get());
         rtt.unbindTexture();
+        layer->m_dirty_face[plane] = true;
     }
 }
 
diff --git a/src/main.cpp b/src/main.cpp
index 65deba0..702f593 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -180,6 +180,47 @@ void win32_show_cursor(bool visible)
     });
 }
 
+std::string win32_clipboard_get_text()
+{
+    std::string ret;
+    if (OpenClipboard(hWnd))
+    {
+        if (HANDLE h = GetClipboardData(CF_TEXT))
+        {
+            if (char* s = (char*)GlobalLock(h))
+            {
+                ret = s;
+                GlobalUnlock(h);
+            }
+        }
+        CloseClipboard();
+    }
+    return ret;
+}
+
+bool win32_clipboard_set_text(const std::string& s)
+{
+    bool success = false;
+    if (OpenClipboard(hWnd))
+    {
+        // owned by SetClipboardData
+        if (HGLOBAL h = GlobalAlloc(GMEM_MOVEABLE, s.size() + 1))
+        {
+            if (char* p = (char*)GlobalLock(h))
+            {
+                std::copy(s.begin(), s.end(), p);
+                p[s.size()] = 0; // string null-termination
+                GlobalUnlock(h);
+                success = true;
+            }
+            EmptyClipboard();
+            SetClipboardData(CF_TEXT, h);
+        }
+        CloseClipboard();
+    }
+    return success;
+}
+
 std::string win32_open_file(const char* filter)
 {
     OPENFILENAMEA ofn;
diff --git a/src/node_dialog_picker.cpp b/src/node_dialog_picker.cpp
index 25942ee..532acaa 100644
--- a/src/node_dialog_picker.cpp
+++ b/src/node_dialog_picker.cpp
@@ -84,6 +84,30 @@ void NodeColorPicker::init_controls()
     m_color_old = find<NodeBorder>("color-old");
     m_color_old1 = find<NodeBorder>("color-old1");
     m_color_old2 = find<NodeBorder>("color-old2");
+    m_btn_copy = find<NodeButton>("btn-hex-copy");
+    m_btn_paste = find<NodeButton>("btn-hex-paste");
+    m_txt_hex = find<NodeText>("txt-hex");
+
+    m_btn_paste->on_click = [this](Node*)
+    {
+        std::string s = clipboard_get_text();
+        std::regex r("#([\\dabcdefABCDEF]{6})");
+        std::smatch m;
+        if (std::regex_search(s, m, r))
+        {
+            unsigned long ul = std::stoul(m[1].str(), nullptr, 16);
+            uint8_t b = (ul >>  0) & 0xFF;
+            uint8_t g = (ul >>  8) & 0xFF;
+            uint8_t r = (ul >> 16) & 0xFF;
+            auto rgb = glm::vec3(r, g, b) / 255.f;
+            set_color(rgb);
+        }
+    };
+
+    m_btn_copy->on_click = [this](Node*)
+    {
+        clipboard_set_text(m_txt_hex->m_text);
+    };
 
     m_wheel->on_value_changed = [this](Node*, glm::vec3 hsv)
     {
@@ -98,6 +122,7 @@ void NodeColorPicker::init_controls()
         if (on_color_change)
             on_color_change(this, rgb);
         m_interacted = true;
+        update_hex(rgb);
     };
     auto hsv_setter = [this](Node* target, float v)
     {
@@ -111,6 +136,7 @@ void NodeColorPicker::init_controls()
         if (on_color_change)
             on_color_change(this, rgb);
         m_interacted = true;
+        update_hex(rgb);
     };
     m_slider_h->on_value_changed = hsv_setter;
     m_slider_s->on_value_changed = hsv_setter;
@@ -128,12 +154,20 @@ void NodeColorPicker::init_controls()
         if (on_color_change)
             on_color_change(this, rgb);
         m_interacted = true;
+        update_hex(rgb);
     };
     m_slider_r->on_value_changed = rgb_setter;
     m_slider_g->on_value_changed = rgb_setter;
     m_slider_b->on_value_changed = rgb_setter;
 }
 
+void NodeColorPicker::update_hex(glm::vec3 rgb)
+{
+    char tmp[32];
+    ultoa(convert_rgb_long(rgb), tmp, 16);
+    m_txt_hex->set_text_format("#%s", tmp);
+}
+
 void NodeColorPicker::set_color(glm::vec3 rgb)
 {
     auto hsv = convert_rgb2hsv(rgb);
@@ -146,6 +180,7 @@ void NodeColorPicker::set_color(glm::vec3 rgb)
     m_wheel->m_hsv = hsv;
     m_color_cur->m_color = { rgb, 1 };
     m_color_old->m_color = { rgb, 1 };
+    update_hex(rgb);
 }
 
 glm::vec3 NodeColorPicker::get_hsv() const
diff --git a/src/node_dialog_picker.h b/src/node_dialog_picker.h
index fc1b478..c8ff213 100644
--- a/src/node_dialog_picker.h
+++ b/src/node_dialog_picker.h
@@ -24,6 +24,9 @@ public:
     NodeBorder* m_color_old;
     NodeBorder* m_color_old1;
     NodeBorder* m_color_old2;
+    NodeButton* m_btn_copy;
+    NodeButton* m_btn_paste;
+    NodeText* m_txt_hex;
     glm::vec3 m_rgb;
     glm::vec3 m_hsv;
 
@@ -35,6 +38,7 @@ public:
     virtual kEventResult handle_event(Event* e) override;
     virtual void added(Node* parent) override;
     void init_controls();
+    void update_hex(glm::vec3 rgb);
     void set_color(glm::vec3 rgb);
     glm::vec3 get_hsv() const;
     glm::vec3 get_rgb() const;
diff --git a/src/util.cpp b/src/util.cpp
index 7bb48f0..0cc70d5 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -485,6 +485,22 @@ glm::vec4 rand_color()
     return { r, g, b, 1.f };
 }
 
+glm::vec3 convert_long_rgb(unsigned long hex)
+{
+    uint8_t b = (hex >> 0) & 0xFF;
+    uint8_t g = (hex >> 8) & 0xFF;
+    uint8_t r = (hex >> 16) & 0xFF;
+    return glm::vec3(r, g, b) / 255.f;
+}
+
+unsigned long convert_rgb_long(glm::vec3 rgb)
+{
+    uint8_t r = (uint8_t)(rgb.r * 255.f);
+    uint8_t g = (uint8_t)(rgb.g * 255.f);
+    uint8_t b = (uint8_t)(rgb.b * 255.f);
+    return (r << 16) + (g << 8) + b;
+}
+
 glm::vec3 convert_hsv2rgb(const glm::vec3 c)
 {
     glm::vec4 K = glm::vec4(1.0f, 2.0f / 3.0f, 1.0f / 3.0f, 3.0f);
@@ -594,6 +610,24 @@ std::string str_replace(const std::string& string, const std::string& search, co
     return ret;
 }
 
+std::string clipboard_get_text()
+{
+#if _WIN32
+    extern std::string win32_clipboard_get_text();
+    return win32_clipboard_get_text();
+#elif _IOS_
+#endif
+}
+
+bool clipboard_set_text(const std::string& s)
+{
+#if _WIN32
+    extern bool win32_clipboard_set_text(const std::string & s);
+    return win32_clipboard_set_text(s);
+#elif _IOS_
+#endif
+}
+
 static const char* gl2str(GLenum err)
 {
     switch (err)
diff --git a/src/util.h b/src/util.h
index 2fc713d..01986ea 100644
--- a/src/util.h
+++ b/src/util.h
@@ -71,6 +71,8 @@ std::vector<vertex_t> triangulate(const std::vector<vertex_t>& points);
 std::vector<vertex_t> triangulate(const std::vector<glm::vec2>& points);
 std::vector<vertex_t> triangulate_simple(const std::vector<vertex_t>& vertices);
 glm::vec4 rand_color();
+glm::vec3 convert_long_rgb(unsigned long hex);
+unsigned long convert_rgb_long(glm::vec3 rgb);
 glm::vec3 convert_hsv2rgb(const glm::vec3 c);
 glm::vec3 convert_rgb2hsv(const glm::vec3 c);
 std::vector<std::string> split(const std::string& subject, char d, int max_split = 0);
@@ -80,6 +82,9 @@ std::string wstr2str(const std::wstring& wstr);
 bool str_iequals(const std::string& a, const std::string& b);
 std::string str_replace(const std::string& string, const std::string& search, const std::string& replace);
 
+std::string clipboard_get_text();
+bool clipboard_set_text(const std::string& s);
+
 size_t curl_data_handler(void *contents, size_t size, size_t nmemb, void *userp);
 size_t curl_data_write(void *ptr, size_t size, size_t nmemb, FILE *stream);
 void check_OpenGLError(const char* stmt, const char* fname, int line);