Fixed combo box (bug introduced earlier today) + adding bit of vertical padding in combo.

Fix for gcc type qualifier warnings.

README.md

@@ -1,11 +1,13 @@
 ImGui
 =====
 
-ImGui is a bloat-free graphical user interface library for C++. It is portable, renderer agnostic and carries minimal amount of dependencies (only 3 files are needed). It is based on an "immediate" graphical user interface paradigm which allows you to build simple user interfaces with ease.
+ImGui is a bloat-free graphical user interface library for C++. It outputs vertex buffers that you can render in your 3D-pipeline enabled application. It is portable, renderer agnostic and carries minimal amount of dependencies (only 3 files are needed). It is based on an "immediate" graphical user interface paradigm which allows you to build simple user interfaces with ease.
 
-ImGui is designed to allow programmers to create "content creation" or "debug" tools (as opposed to tools for the average end-user). It favors simplicity and thus lacks certain features normally found in more high-level libraries, such as string localisation.
+ImGui is designed to enable fast iteration and allow programmers to create "content creation" or "debug" tools (as opposed to tools for the average end-user). It favors simplicity and thus lacks certain features normally found in more high-level libraries, such as string localisation.
 
-After ImGui is setup in your application, you can use it like in this example:
+ImGui is particularly suited to integration in 3D applications, fullscreen applications, embedded applications, games, or any applications on consoles platforms where operating system features are non-standard. 
+
+After ImGui is setup in your engine, you can use it like in this example:
 
 ![screenshot of sample code alongside its output with ImGui](/web/code_sample_01.png?raw=true)
 

examples/opengl_example/main.cpp

@@ -24,7 +24,7 @@ static void ImImpl_RenderDrawLists(ImDrawList** const cmd_lists, int cmd_lists_c
 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 	glDisable(GL_CULL_FACE);
 	glDisable(GL_DEPTH_TEST);
-	//glEnable(GL_SCISSOR_TEST);
+	glEnable(GL_SCISSOR_TEST);
 	glEnableClientState(GL_VERTEX_ARRAY);
 	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 	glEnableClientState(GL_COLOR_ARRAY);
@@ -34,9 +34,11 @@ static void ImImpl_RenderDrawLists(ImDrawList** const cmd_lists, int cmd_lists_c
 	glEnable(GL_TEXTURE_2D);
 
 	// Setup matrices
+	const float width = ImGui::GetIO().DisplaySize.x;
+	const float height = ImGui::GetIO().DisplaySize.y;
 	glMatrixMode(GL_PROJECTION);
 	glLoadIdentity();
-	glOrtho(0.0f, ImGui::GetIO().DisplaySize.x, ImGui::GetIO().DisplaySize.y, 0.0f, -1.0f, +1.0f);
+	glOrtho(0.0f, width, height, 0.0f, -1.0f, +1.0f);
 	glMatrixMode(GL_MODELVIEW);
 	glLoadIdentity();
 
@@ -53,7 +55,7 @@ static void ImImpl_RenderDrawLists(ImDrawList** const cmd_lists, int cmd_lists_c
 		const ImDrawCmd* pcmd_end = cmd_list->commands.end();
 		for (const ImDrawCmd* pcmd = cmd_list->commands.begin(); pcmd != pcmd_end; pcmd++)
 		{
-			glScissor((int)pcmd->clip_rect.x, (int)pcmd->clip_rect.y, (int)(pcmd->clip_rect.z - pcmd->clip_rect.x), (int)(pcmd->clip_rect.w - pcmd->clip_rect.y));
+			glScissor((int)pcmd->clip_rect.x, (int)(height - pcmd->clip_rect.w), (int)(pcmd->clip_rect.z - pcmd->clip_rect.x), (int)(pcmd->clip_rect.w - pcmd->clip_rect.y));
 			glDrawArrays(GL_TRIANGLES, vtx_offset, pcmd->vtx_count);
 			vtx_offset += pcmd->vtx_count;
 		}

imgui.cpp

@@ -110,18 +110,19 @@
  ISSUES AND TODO-LIST
 
  - misc: merge ImVec4 / ImGuiAabb, they are essentially duplicate containers
- - main: make IsHovered() more consistent for various type of widgets, widgets with multiple components, etc. also effectively IsHovered() region sometimes differs from hot region, e.g tree nodes
  - window: autofit is losing its purpose when user relies on any dynamic layout (window width multiplier, column). maybe just discard autofit?
  - window: support horizontal scroll
  - window: fix resize grip scaling along with Rounding style setting
  - widgets: switching from "widget-label" to "label-widget" would make it more convenient to integrate widgets in trees
  - widgets: clip text? hover clipped text shows it in a tooltip or in-place overlay
+ - main: make IsHovered() more consistent for various type of widgets, widgets with multiple components, etc. also effectively IsHovered() region sometimes differs from hot region, e.g tree nodes
+ - main: make IsHovered() info stored in a stack? so that 'if TreeNode() { Text; TreePop; } if IsHovered' return the hover state of the TreeNode?
  - scrollbar: use relative mouse movement when first-clicking inside of scroll grab box.
  - input number: optional range min/max
  - input number: holding [-]/[+] buttons should increase the step non-linearly
  - input number: rename Input*() to Input(), Slider*() to Slider() ?
  - layout: clean up the InputFloat3/SliderFloat3/ColorEdit4 horrible layout code. item width should include frame padding, then we can have a generic horizontal layout helper.
- - add input2/4 helper (once above layout helpers are in they'll be smaller)
+ - add input4 helper (once above layout helpers are in they'll be smaller)
  - columns: declare column set (each column: fixed size, %, fill, distribute default size among fills)
  - columns: columns header to act as button (~sort op) and allow resize/reorder
  - columns: user specify columns size
@@ -1036,7 +1037,7 @@ static void LoadSettings()
 	if (fseek(f, 0, SEEK_SET)) 
 		return;
 	char* f_data = new char[f_size+1];
-	f_size = fread(f_data, 1, f_size, f);	// Text conversion alter read size so let's not be fussy about return value
+	f_size = (long)fread(f_data, 1, f_size, f);	// Text conversion alter read size so let's not be fussy about return value
 	fclose(f);
 	if (f_size == 0)
 	{
@@ -1804,6 +1805,8 @@ bool Begin(const char* name, bool* open, ImVec2 size, float fill_alpha, ImGuiWin
 			window->SizeFull = size;
 			if (!(flags & ImGuiWindowFlags_ComboBox))
 				ImGui::PushClipRect(parent_window->ClipRectStack.back());
+			else
+				ImGui::PushClipRect(ImVec4(0.0f, 0.0f, g.IO.DisplaySize.x, g.IO.DisplaySize.y));
 		}
 		else
 		{
@@ -2074,16 +2077,8 @@ void End()
 	ImGuiWindow* window = g.CurrentWindow;
 
 	ImGui::Columns(1, "#CloseColumns");
-	ImGui::PopClipRect();
-	if (window->Flags & ImGuiWindowFlags_ChildWindow)
-	{
-		if (!(window->Flags & ImGuiWindowFlags_ComboBox))
-			ImGui::PopClipRect();
-	}
-	else
-	{
-		ImGui::PopClipRect();
-	}
+	ImGui::PopClipRect();	// inner window clip rectangle
+	ImGui::PopClipRect();	// outer window clip rectangle
 
 	// Select window for move/focus when we're done with all our widgets
 	ImGuiAabb bb(window->Pos, window->Pos+window->Size);
@@ -3158,6 +3153,38 @@ bool SliderInt(const char* label, int* v, int v_min, int v_max, const char* disp
 	return changed;
 }
 
+bool SliderFloat2(const char* label, float v[2], float v_min, float v_max, const char* display_format, float power)
+{
+	ImGuiState& g = GImGui;
+	ImGuiWindow* window = GetCurrentWindow();
+	if (window->Collapsed)
+		return false;
+
+	const ImGuiStyle& style = g.Style;
+
+	bool value_changed = false;
+	ImGui::PushID(label);
+
+	const int components = 2;
+	const float w_full = window->DC.ItemWidth.back();
+	const float w_item_one  = ImMax(1.0f, (float)(int)((w_full - (style.FramePadding.x*2.0f+style.ItemInnerSpacing.x)*(components-1)) / (float)components));
+	const float w_item_last = ImMax(1.0f, (float)(int)(w_full - (w_item_one+style.FramePadding.x*2.0f+style.ItemInnerSpacing.x)*(components-1)));
+
+	ImGui::PushItemWidth(w_item_one);
+	value_changed |= ImGui::SliderFloat("##X", &v[0], v_min, v_max, display_format, power);
+	ImGui::SameLine(0, 0);
+	ImGui::PopItemWidth();
+	ImGui::PushItemWidth(w_item_last);
+	value_changed |= ImGui::SliderFloat("##Y", &v[1], v_min, v_max, display_format, power);
+	ImGui::SameLine(0, 0);
+	ImGui::PopItemWidth();
+
+	ImGui::TextUnformatted(label, FindTextDisplayEnd(label));
+
+	ImGui::PopID();
+	return value_changed;
+}
+
 bool SliderFloat3(const char* label, float v[3], float v_min, float v_max, const char* display_format, float power)
 {
 	ImGuiState& g = GImGui;
@@ -3168,7 +3195,6 @@ bool SliderFloat3(const char* label, float v[3], float v_min, float v_max, const
 	const ImGuiStyle& style = g.Style;
 
 	bool value_changed = false;
-
 	ImGui::PushID(label);
 
 	const int components = 3;
@@ -3191,7 +3217,6 @@ bool SliderFloat3(const char* label, float v[3], float v_min, float v_max, const
 	ImGui::TextUnformatted(label, FindTextDisplayEnd(label));
 
 	ImGui::PopID();
-
 	return value_changed;
 }
 
@@ -3840,6 +3865,38 @@ bool InputText(const char* label, char* buf, size_t buf_size, ImGuiInputTextFlag
 	return value_changed;
 }
 
+bool InputFloat2(const char* label, float v[2], int decimal_precision)
+{
+	ImGuiState& g = GImGui;
+	ImGuiWindow* window = GetCurrentWindow();
+	if (window->Collapsed)
+		return false;
+
+	const ImGuiStyle& style = g.Style;
+
+	bool value_changed = false;
+	ImGui::PushID(label);
+
+	const int components = 2;
+	const float w_full = window->DC.ItemWidth.back();
+	const float w_item_one  = ImMax(1.0f, (float)(int)((w_full - (style.FramePadding.x*2.0f+style.ItemInnerSpacing.x) * (components-1)) / (float)components));
+	const float w_item_last = ImMax(1.0f, (float)(int)(w_full - (w_item_one+style.FramePadding.x*2.0f+style.ItemInnerSpacing.x) * (components-1)));
+
+	ImGui::PushItemWidth(w_item_one);
+	value_changed |= ImGui::InputFloat("##X", &v[0], 0, 0, decimal_precision);
+	ImGui::SameLine(0, 0);
+	ImGui::PopItemWidth();
+	ImGui::PushItemWidth(w_item_last);
+	value_changed |= ImGui::InputFloat("##Y", &v[1], 0, 0, decimal_precision);
+	ImGui::SameLine(0, 0);
+	ImGui::PopItemWidth();
+
+	ImGui::TextUnformatted(label, FindTextDisplayEnd(label));
+
+	ImGui::PopID();
+	return value_changed;
+}
+
 bool InputFloat3(const char* label, float v[3], int decimal_precision)
 {
 	ImGuiState& g = GImGui;
@@ -3850,7 +3907,6 @@ bool InputFloat3(const char* label, float v[3], int decimal_precision)
 	const ImGuiStyle& style = g.Style;
 
 	bool value_changed = false;
-
 	ImGui::PushID(label);
 
 	const int components = 3;
@@ -3873,7 +3929,6 @@ bool InputFloat3(const char* label, float v[3], int decimal_precision)
 	ImGui::TextUnformatted(label, FindTextDisplayEnd(label));
 
 	ImGui::PopID();
-
 	return value_changed;
 }
 
@@ -3982,6 +4037,7 @@ bool Combo(const char* label, int* current_item, bool (*items_getter)(void*, int
 		ImGuiWindowFlags flags = ImGuiWindowFlags_ComboBox | ((window->Flags & ImGuiWindowFlags_ShowBorders) ? ImGuiWindowFlags_ShowBorders : 0);
 		ImGui::BeginChild("#ComboBox", popup_aabb.GetSize(), false, flags);
 		ImGuiWindow* child_window = GetCurrentWindow();
+		ImGui::Spacing();
 
 		bool combo_item_active = false;
 		combo_item_active |= (g.ActiveId == child_window->GetID("#SCROLLY"));
@@ -4442,7 +4498,8 @@ void Columns(int columns_count, const char* id, bool border)
 
 			// Draw before resize so our items positioning are in sync with the line
 			const ImU32 col = window->Color(held ? ImGuiCol_ColumnActive : hovered ? ImGuiCol_ColumnHovered : ImGuiCol_Column);
-			window->DrawList->AddLine(ImVec2(x, y1), ImVec2(x, y2), col);
+			const float xi = (float)(int)x;
+			window->DrawList->AddLine(ImVec2(xi, y1), ImVec2(xi, y2), col);
 
 			if (held)
 			{
@@ -5291,6 +5348,9 @@ void ShowTestWindow(bool* open)
 		ImGui::InputInt("input int", &i0);
 		ImGui::InputFloat("input float", &f0, 0.01f, 1.0f);
 
+		//static float vec2b[3] = { 0.10f, 0.20f };
+		//ImGui::InputFloat2("input float2", vec2b);
+
 		static float vec3b[3] = { 0.10f, 0.20f, 0.30f };
 		ImGui::InputFloat3("input float3", vec3b);
 
@@ -5310,6 +5370,9 @@ void ShowTestWindow(bool* open)
 		static float angle = 0.0f;
 		ImGui::SliderAngle("angle", &angle);
 
+		//static float vec2a[3] = { 0.10f, 0.20f };
+		//ImGui::SliderFloat2("slider float2", vec2a, 0.0f, 1.0f);
+
 		static float vec3a[3] = { 0.10f, 0.20f, 0.30f };
 		ImGui::SliderFloat3("slider float3", vec3a, 0.0f, 1.0f);
 
@@ -5342,7 +5405,7 @@ void ShowTestWindow(bool* open)
 				phase += 0.10f*values_offset; 
 			}
 		}
-		ImGui::PlotLines("Frame Times", &values.front(), values.size(), values_offset, "avg 0.0", -1.0f, 1.0f, ImVec2(0,70));
+		ImGui::PlotLines("Frame Times", &values.front(), (int)values.size(), values_offset, "avg 0.0", -1.0f, 1.0f, ImVec2(0,70));
 
 		ImGui::SameLine(); ImGui::Checkbox("pause", &pause);
 		ImGui::PlotHistogram("Histogram", arr, ARRAYSIZE(arr), 0, NULL, 0.0f, 1.0f, ImVec2(0,70));

imgui.h

@@ -85,9 +85,9 @@ public:
 
 	inline void					clear()							{ if (_data) { _size = _capacity = 0; free(_data); _data = NULL; } }
 	inline iterator				begin()							{ return _data; }
-	inline const iterator		begin() const					{ return _data; }
+	inline const_iterator		begin() const					{ return _data; }
 	inline iterator				end()							{ return _data + _size; }
-	inline const iterator		end() const						{ return _data + _size; }
+	inline const_iterator		end() const						{ return _data + _size; }
 	inline value_type&			front()							{ return at(0); }
 	inline const value_type&	front() const					{ return at(0); }
 	inline value_type&			back()							{ IM_ASSERT(_size > 0); return at(_size-1); }
@@ -183,6 +183,7 @@ namespace ImGui
 	bool		SmallButton(const char* label);
 	bool		CollapsingHeader(const char* label, const char* str_id = NULL, const bool display_frame = true, const bool default_open = false);
 	bool		SliderFloat(const char* label, float* v, float v_min, float v_max, const char* display_format = "%.3f", float power = 1.0f);
+	bool		SliderFloat2(const char* label, float v[2], float v_min, float v_max, const char* display_format = "%.3f", float power = 1.0f);
 	bool		SliderFloat3(const char* label, float v[3], float v_min, float v_max, const char* display_format = "%.3f", float power = 1.0f);
 	bool		SliderAngle(const char* label, float* v, float v_degrees_min = -360.0f, float v_degrees_max = +360.0f);		// *v in radians
 	bool		SliderInt(const char* label, int* v, int v_min, int v_max, const char* display_format = "%.0f");
@@ -193,6 +194,7 @@ namespace ImGui
 	bool		RadioButton(const char* label, bool active);
 	bool		RadioButton(const char* label, int* v, int v_button);
 	bool		InputFloat(const char* label, float* v, float step = 0.0f, float step_fast = 0.0f, int decimal_precision = -1);
+	bool		InputFloat2(const char* label, float v[2], int decimal_precision = -1);
 	bool		InputFloat3(const char* label, float v[3], int decimal_precision = -1);
 	bool		InputInt(const char* label, int* v, int step = 1, int step_fast = 100);
 	bool		InputText(const char* label, char* buf, size_t buf_size, ImGuiInputTextFlags flags = 0);