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Merge branch 'master' into docking

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# Conflicts:
#	imgui.cpp
This commit is contained in:
omar
2020-08-03 19:54:31 +02:00
parent 70fa37527d 55041ac3be
commit de1588928b
9 changed files with 229 additions and 134 deletions
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174
imgui_demo.cpp
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@ -4948,31 +4948,32 @@ static void ShowExampleAppCustomRendering(bool* p_open)
// overloaded operators, etc. Define IM_VEC2_CLASS_EXTRA in imconfig.h to create implicit conversions between your
// types and ImVec2/ImVec4. Dear ImGui defines overloaded operators but they are internal to imgui.cpp and not
// exposed outside (to avoid messing with your types) In this example we are not using the maths operators!
ImDrawList* draw_list = ImGui::GetWindowDrawList();
if (ImGui::BeginTabBar("##TabBar"))
{
if (ImGui::BeginTabItem("Primitives"))
{
ImGui::PushItemWidth(-ImGui::GetFontSize() * 10);
ImDrawList* draw_list = ImGui::GetWindowDrawList();
// Draw gradients
// (note that those are currently exacerbating our sRGB/Linear issues)
// Calling ImGui::GetColorU32() multiplies the given colors by the current Style Alpha, but you may pass the IM_COL32() directly as well..
ImGui::Text("Gradients");
ImVec2 gradient_size = ImVec2(ImGui::CalcItemWidth(), ImGui::GetFrameHeight());
{
ImVec2 p0 = ImGui::GetCursorScreenPos();
ImVec2 p1 = ImVec2(p0.x + gradient_size.x, p0.y + gradient_size.y);
ImU32 col_a = ImGui::GetColorU32(ImVec4(0.0f, 0.0f, 0.0f, 1.0f));
ImU32 col_b = ImGui::GetColorU32(ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
ImU32 col_a = ImGui::GetColorU32(IM_COL32(0, 0, 0, 255));
ImU32 col_b = ImGui::GetColorU32(IM_COL32(255, 255, 255, 255));
draw_list->AddRectFilledMultiColor(p0, p1, col_a, col_b, col_b, col_a);
ImGui::InvisibleButton("##gradient1", gradient_size);
}
{
ImVec2 p0 = ImGui::GetCursorScreenPos();
ImVec2 p1 = ImVec2(p0.x + gradient_size.x, p0.y + gradient_size.y);
ImU32 col_a = ImGui::GetColorU32(ImVec4(0.0f, 1.0f, 0.0f, 1.0f));
ImU32 col_b = ImGui::GetColorU32(ImVec4(1.0f, 0.0f, 0.0f, 1.0f));
ImU32 col_a = ImGui::GetColorU32(IM_COL32(0, 255, 0, 255));
ImU32 col_b = ImGui::GetColorU32(IM_COL32(255, 0, 0, 255));
draw_list->AddRectFilledMultiColor(p0, p1, col_a, col_b, col_b, col_a);
ImGui::InvisibleButton("##gradient2", gradient_size);
}
@ -4993,6 +4994,7 @@ static void ShowExampleAppCustomRendering(bool* p_open)
if (ImGui::SliderInt("Circle segments", &circle_segments_override_v, 3, 40))
circle_segments_override = true;
ImGui::ColorEdit4("Color", &colf.x);
const ImVec2 p = ImGui::GetCursorScreenPos();
const ImU32 col = ImColor(colf);
const float spacing = 10.0f;
@ -5000,94 +5002,134 @@ static void ShowExampleAppCustomRendering(bool* p_open)
const ImDrawCornerFlags corners_all = ImDrawCornerFlags_All;
const ImDrawCornerFlags corners_tl_br = ImDrawCornerFlags_TopLeft | ImDrawCornerFlags_BotRight;
const int circle_segments = circle_segments_override ? circle_segments_override_v : 0;
float x = p.x + 4.0f, y = p.y + 4.0f;
float x = p.x + 4.0f;
float y = p.y + 4.0f;
for (int n = 0; n < 2; n++)
{
// First line uses a thickness of 1.0f, second line uses the configurable thickness
float th = (n == 0) ? 1.0f : thickness;
draw_list->AddNgon(ImVec2(x + sz*0.5f, y + sz*0.5f), sz*0.5f, col, ngon_sides, th); x += sz + spacing; // N-gon
draw_list->AddCircle(ImVec2(x + sz*0.5f, y + sz*0.5f), sz*0.5f, col, circle_segments, th); x += sz + spacing; // Circle
draw_list->AddRect(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 0.0f, corners_none, th); x += sz + spacing; // Square
draw_list->AddRect(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 10.0f, corners_all, th); x += sz + spacing; // Square with all rounded corners
draw_list->AddRect(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 10.0f, corners_tl_br, th); x += sz + spacing; // Square with two rounded corners
draw_list->AddTriangle(ImVec2(x+sz*0.5f,y), ImVec2(x+sz, y+sz-0.5f), ImVec2(x, y+sz-0.5f), col, th); x += sz + spacing; // Triangle
draw_list->AddTriangle(ImVec2(x+sz*0.2f,y), ImVec2(x, y+sz-0.5f), ImVec2(x+sz*0.4f, y+sz-0.5f), col, th); x += sz*0.4f + spacing; // Thin triangle
draw_list->AddLine(ImVec2(x, y), ImVec2(x + sz, y), col, th); x += sz + spacing; // Horizontal line (note: drawing a filled rectangle will be faster!)
draw_list->AddLine(ImVec2(x, y), ImVec2(x, y + sz), col, th); x += spacing; // Vertical line (note: drawing a filled rectangle will be faster!)
draw_list->AddLine(ImVec2(x, y), ImVec2(x + sz, y + sz), col, th); x += sz + spacing; // Diagonal line
draw_list->AddNgon(ImVec2(x + sz*0.5f, y + sz*0.5f), sz*0.5f, col, ngon_sides, th); x += sz + spacing; // N-gon
draw_list->AddCircle(ImVec2(x + sz*0.5f, y + sz*0.5f), sz*0.5f, col, circle_segments, th); x += sz + spacing; // Circle
draw_list->AddRect(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 0.0f, corners_none, th); x += sz + spacing; // Square
draw_list->AddRect(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 10.0f, corners_all, th); x += sz + spacing; // Square with all rounded corners
draw_list->AddRect(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 10.0f, corners_tl_br, th); x += sz + spacing; // Square with two rounded corners
draw_list->AddTriangle(ImVec2(x+sz*0.5f,y), ImVec2(x+sz, y+sz-0.5f), ImVec2(x, y+sz-0.5f), col, th);x += sz + spacing; // Triangle
//draw_list->AddTriangle(ImVec2(x+sz*0.2f,y), ImVec2(x, y+sz-0.5f), ImVec2(x+sz*0.4f, y+sz-0.5f), col, th);x+= sz*0.4f + spacing; // Thin triangle
draw_list->AddLine(ImVec2(x, y), ImVec2(x + sz, y), col, th); x += sz + spacing; // Horizontal line (note: drawing a filled rectangle will be faster!)
draw_list->AddLine(ImVec2(x, y), ImVec2(x, y + sz), col, th); x += spacing; // Vertical line (note: drawing a filled rectangle will be faster!)
draw_list->AddLine(ImVec2(x, y), ImVec2(x + sz, y + sz), col, th); x += sz + spacing; // Diagonal line
draw_list->AddBezierCurve(ImVec2(x, y), ImVec2(x + sz*1.3f, y + sz*0.3f), ImVec2(x + sz - sz*1.3f, y + sz - sz*0.3f), ImVec2(x + sz, y + sz), col, th);
x = p.x + 4;
y += sz + spacing;
}
draw_list->AddNgonFilled(ImVec2(x + sz * 0.5f, y + sz * 0.5f), sz*0.5f, col, ngon_sides); x += sz + spacing; // N-gon
draw_list->AddCircleFilled(ImVec2(x + sz*0.5f, y + sz*0.5f), sz*0.5f, col, circle_segments);x += sz + spacing; // Circle
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + sz), col); x += sz + spacing; // Square
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 10.0f); x += sz + spacing; // Square with all rounded corners
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 10.0f, corners_tl_br); x += sz + spacing; // Square with two rounded corners
draw_list->AddTriangleFilled(ImVec2(x+sz*0.5f,y), ImVec2(x+sz, y+sz-0.5f), ImVec2(x, y+sz-0.5f), col); x += sz + spacing; // Triangle
draw_list->AddTriangleFilled(ImVec2(x+sz*0.2f,y), ImVec2(x, y+sz-0.5f), ImVec2(x+sz*0.4f, y+sz-0.5f), col); x += sz*0.4f + spacing; // Thin triangle
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + thickness), col); x += sz + spacing; // Horizontal line (faster than AddLine, but only handle integer thickness)
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + thickness, y + sz), col); x += spacing*2.0f; // Vertical line (faster than AddLine, but only handle integer thickness)
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + 1, y + 1), col); x += sz; // Pixel (faster than AddLine)
draw_list->AddNgonFilled(ImVec2(x + sz * 0.5f, y + sz * 0.5f), sz*0.5f, col, ngon_sides); x += sz + spacing; // N-gon
draw_list->AddCircleFilled(ImVec2(x + sz*0.5f, y + sz*0.5f), sz*0.5f, col, circle_segments); x += sz + spacing; // Circle
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + sz), col); x += sz + spacing; // Square
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 10.0f); x += sz + spacing; // Square with all rounded corners
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 10.0f, corners_tl_br); x += sz + spacing; // Square with two rounded corners
draw_list->AddTriangleFilled(ImVec2(x+sz*0.5f,y), ImVec2(x+sz, y+sz-0.5f), ImVec2(x, y+sz-0.5f), col); x += sz + spacing; // Triangle
//draw_list->AddTriangleFilled(ImVec2(x+sz*0.2f,y), ImVec2(x, y+sz-0.5f), ImVec2(x+sz*0.4f, y+sz-0.5f), col); x += sz*0.4f + spacing; // Thin triangle
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + thickness), col); x += sz + spacing; // Horizontal line (faster than AddLine, but only handle integer thickness)
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + thickness, y + sz), col); x += spacing * 2.0f;// Vertical line (faster than AddLine, but only handle integer thickness)
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + 1, y + 1), col); x += sz; // Pixel (faster than AddLine)
draw_list->AddRectFilledMultiColor(ImVec2(x, y), ImVec2(x + sz, y + sz), IM_COL32(0, 0, 0, 255), IM_COL32(255, 0, 0, 255), IM_COL32(255, 255, 0, 255), IM_COL32(0, 255, 0, 255));
ImGui::Dummy(ImVec2((sz + spacing) * 9.8f, (sz + spacing) * 3));
ImGui::Dummy(ImVec2((sz + spacing) * 8.8f, (sz + spacing) * 3.0f));
ImGui::PopItemWidth();
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Canvas"))
{
static ImVector<ImVec2> points;
struct ItemLine { ImVec2 p0, p1; ItemLine(const ImVec2& _p0, const ImVec2& _p1) { p0 = _p0; p1 = _p1; } };
static ImVector<ItemLine> lines;
static ImVec2 scrolling(0.0f, 0.0f);
static bool show_grid = true;
static bool adding_line = false;
if (ImGui::Button("Clear")) points.clear();
if (points.Size >= 2) { ImGui::SameLine(); if (ImGui::Button("Undo")) { points.pop_back(); points.pop_back(); } }
ImGui::Text("Left-click and drag to add lines,\nRight-click to undo");
// Here we are using InvisibleButton() as a convenience to 1) advance the cursor and 2) allows us to use
// IsItemHovered(). But you can also draw directly and poll mouse/keyboard by yourself.
// You can manipulate the cursor using GetCursorPos() and SetCursorPos().
// If you only use the ImDrawList API, you can notify the owner window of its extends with SetCursorPos(max).
ImVec2 canvas_p = ImGui::GetCursorScreenPos(); // ImDrawList API uses screen coordinates!
ImGui::Checkbox("Show grid", &show_grid);
ImGui::Text("Mouse Left: drag to add lines,\nMouse Right: drag to scroll, click for context menu.");
// Typically you would use a BeginChild()/EndChild() pair to benefit from a clipping region + own scrolling.
// Here we demonstrate that this can be replaced by simple offsetting + custom drawing + PushClipRect/PopClipRect() calls.
// To use a child window instead we could use, e.g:
// ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0, 0)); // Disable padding
// ImGui::PushStyleColor(ImGuiCol_ChildBg, IM_COL32(50, 50, 50, 255)); // Set a background color
// ImGui::BeginChild("canvas", ImVec2(0.0f, 0.0f), true, ImGuiWindowFlags_NoMove);
// ImGui::PopStyleColor();
// ImGui::PopStyleVar();
// [...]
// ImGui::EndChild();
// Using InvisibleButton() as a convenience 1) it will advance the layout cursor and 2) allows us to use IsItemHovered()/IsItemActive()
ImVec2 canvas_p0 = ImGui::GetCursorScreenPos(); // ImDrawList API uses screen coordinates!
ImVec2 canvas_sz = ImGui::GetContentRegionAvail(); // Resize canvas to what's available
if (canvas_sz.x < 50.0f) canvas_sz.x = 50.0f;
if (canvas_sz.y < 50.0f) canvas_sz.y = 50.0f;
draw_list->AddRectFilledMultiColor(canvas_p, ImVec2(canvas_p.x + canvas_sz.x, canvas_p.y + canvas_sz.y), IM_COL32(50, 50, 50, 255), IM_COL32(50, 50, 60, 255), IM_COL32(60, 60, 70, 255), IM_COL32(50, 50, 60, 255));
draw_list->AddRect(canvas_p, ImVec2(canvas_p.x + canvas_sz.x, canvas_p.y + canvas_sz.y), IM_COL32(255, 255, 255, 255));
ImVec2 canvas_p1 = ImVec2(canvas_p0.x + canvas_sz.x, canvas_p0.y + canvas_sz.y);
bool adding_preview = false;
ImGui::InvisibleButton("canvas", canvas_sz);
ImVec2 mouse_pos_global = ImGui::GetIO().MousePos;
ImVec2 mouse_pos_canvas = ImVec2(mouse_pos_global.x - canvas_p.x, mouse_pos_global.y - canvas_p.y);
// Draw border and background color
ImGuiIO& io = ImGui::GetIO();
ImDrawList* draw_list = ImGui::GetWindowDrawList();
draw_list->AddRectFilled(canvas_p0, canvas_p1, IM_COL32(50, 50, 50, 255));
draw_list->AddRect(canvas_p0, canvas_p1, IM_COL32(255, 255, 255, 255));
// This will catch our interactions
ImGui::InvisibleButton("canvas", canvas_sz, ImGuiButtonFlags_MouseButtonLeft | ImGuiButtonFlags_MouseButtonRight);
const bool is_hovered = ImGui::IsItemHovered(); // Hovered
const bool is_active = ImGui::IsItemActive(); // Held
const ImVec2 origin(canvas_p0.x + scrolling.x, canvas_p0.y + scrolling.y); // Lock scrolled origin
const ImVec2 mouse_pos_in_canvas(io.MousePos.x - origin.x, io.MousePos.y - origin.y);
// Add first and second point
if (is_hovered && !adding_line && ImGui::IsMouseClicked(ImGuiMouseButton_Left))
{
lines.push_back(ItemLine(mouse_pos_in_canvas, mouse_pos_in_canvas));
adding_line = true;
}
if (adding_line)
{
adding_preview = true;
points.push_back(mouse_pos_canvas);
if (!ImGui::IsMouseDown(0))
adding_line = adding_preview = false;
}
if (ImGui::IsItemHovered())
{
if (!adding_line && ImGui::IsMouseClicked(0))
{
points.push_back(mouse_pos_canvas);
adding_line = true;
}
if (ImGui::IsMouseClicked(1) && !points.empty())
{
adding_line = adding_preview = false;
points.pop_back();
points.pop_back();
}
lines.back().p1 = mouse_pos_in_canvas;
if (!ImGui::IsMouseDown(ImGuiMouseButton_Left))
adding_line = false;
}
// Draw all lines in the canvas (with a clipping rectangle so they don't stray out of it).
draw_list->PushClipRect(canvas_p, ImVec2(canvas_p.x + canvas_sz.x, canvas_p.y + canvas_sz.y), true);
for (int i = 0; i < points.Size - 1; i += 2)
draw_list->AddLine(ImVec2(canvas_p.x + points[i].x, canvas_p.y + points[i].y), ImVec2(canvas_p.x + points[i + 1].x, canvas_p.y + points[i + 1].y), IM_COL32(255, 255, 0, 255), 2.0f);
// Pan (using zero mouse threshold)
if (is_active && ImGui::IsMouseDragging(ImGuiMouseButton_Right, 0.0f))
{
scrolling.x += io.MouseDelta.x;
scrolling.y += io.MouseDelta.y;
}
// Context menu (under default mouse threshold)
// We intentionally use the same button to demonstrate using mouse drag threshold. Some may feel panning should rely on same threshold.
ImVec2 drag_delta = ImGui::GetMouseDragDelta(ImGuiMouseButton_Right);
if (drag_delta.x == 0.0f && drag_delta.y == 0.0f)
ImGui::OpenPopupContextItem("context");
if (ImGui::BeginPopup("context"))
{
if (adding_line)
lines.pop_back();
adding_line = false;
if (ImGui::MenuItem("Remove one", NULL, false, lines.Size > 0)) { lines.pop_back(); }
if (ImGui::MenuItem("Remove all", NULL, false, lines.Size > 0)) { lines.clear(); }
ImGui::EndPopup();
}
// Draw grid + all lines in the canvas
draw_list->PushClipRect(canvas_p0, canvas_p1, true);
if (show_grid)
{
const float GRID_STEP = 64.0f;
for (float x = fmodf(scrolling.x, GRID_STEP); x < canvas_sz.x; x += GRID_STEP)
draw_list->AddLine(ImVec2(canvas_p0.x + x, canvas_p0.y), ImVec2(canvas_p0.x + x, canvas_p1.y), IM_COL32(200, 200, 200, 40));
for (float y = fmodf(scrolling.y, GRID_STEP); y < canvas_sz.y; y += GRID_STEP)
draw_list->AddLine(ImVec2(canvas_p0.x, canvas_p0.y + y), ImVec2(canvas_p1.x, canvas_p0.y + y), IM_COL32(200, 200, 200, 40));
}
for (int n = 0; n < lines.Size; n++)
draw_list->AddLine(ImVec2(origin.x + lines[n].p0.x, origin.y + lines[n].p0.y), ImVec2(origin.x + lines[n].p1.x, origin.y + lines[n].p1.y), IM_COL32(255, 255, 0, 255), 2.0f);
draw_list->PopClipRect();
if (adding_preview)
points.pop_back();
ImGui::EndTabItem();
}