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Demo: Tweaked custom rendering custom, added a Thickness drag. Clarified use of vertical/horizontal line. Add a single pixel demo (wowow)

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This commit is contained in:
omar 2018-05-13 23:42:19 +02:00
parent 3f29ed6fd5
commit d7cc4bc317
1 changed files with 15 additions and 10 deletions
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25
imgui_demo.cpp
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@ -2628,8 +2628,10 @@ static void ShowExampleAppCustomRendering(bool* p_open)
// Primitives // Primitives
ImGui::Text("Primitives"); ImGui::Text("Primitives");
static float sz = 36.0f; static float sz = 36.0f;
static float thickness = 4.0f;
static ImVec4 col = ImVec4(1.0f,1.0f,0.4f,1.0f); static ImVec4 col = ImVec4(1.0f,1.0f,0.4f,1.0f);
ImGui::DragFloat("Size", &sz, 0.2f, 2.0f, 72.0f, "%.0f"); ImGui::DragFloat("Size", &sz, 0.2f, 2.0f, 72.0f, "%.0f");
ImGui::DragFloat("Thickness", &thickness, 0.05f, 1.0f, 8.0f, "%.02f");
ImGui::ColorEdit3("Color", &col.x); ImGui::ColorEdit3("Color", &col.x);
{ {
const ImVec2 p = ImGui::GetCursorScreenPos(); const ImVec2 p = ImGui::GetCursorScreenPos();
@ -2637,16 +2639,16 @@ static void ShowExampleAppCustomRendering(bool* p_open)
float x = p.x + 4.0f, y = p.y + 4.0f, spacing = 8.0f; float x = p.x + 4.0f, y = p.y + 4.0f, spacing = 8.0f;
for (int n = 0; n < 2; n++) for (int n = 0; n < 2; n++)
{ {
float thickness = (n == 0) ? 1.0f : 4.0f; float curr_thickness = (n == 0) ? 1.0f : thickness;
draw_list->AddCircle(ImVec2(x+sz*0.5f, y+sz*0.5f), sz*0.5f, col32, 20, thickness); x += sz+spacing; draw_list->AddCircle(ImVec2(x+sz*0.5f, y+sz*0.5f), sz*0.5f, col32, 20, curr_thickness); x += sz+spacing;
draw_list->AddRect(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, 0.0f, ImDrawCornerFlags_All, thickness); x += sz+spacing; draw_list->AddRect(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, 0.0f, ImDrawCornerFlags_All, curr_thickness); x += sz+spacing;
draw_list->AddRect(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, 10.0f, ImDrawCornerFlags_All, thickness); x += sz+spacing; draw_list->AddRect(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, 10.0f, ImDrawCornerFlags_All, curr_thickness); x += sz+spacing;
draw_list->AddRect(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, 10.0f, ImDrawCornerFlags_TopLeft|ImDrawCornerFlags_BotRight, thickness); x += sz+spacing; draw_list->AddRect(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, 10.0f, ImDrawCornerFlags_TopLeft|ImDrawCornerFlags_BotRight, curr_thickness); x += sz+spacing;
draw_list->AddTriangle(ImVec2(x+sz*0.5f, y), ImVec2(x+sz,y+sz-0.5f), ImVec2(x,y+sz-0.5f), col32, thickness); x += sz+spacing; draw_list->AddTriangle(ImVec2(x+sz*0.5f, y), ImVec2(x+sz,y+sz-0.5f), ImVec2(x,y+sz-0.5f), col32, curr_thickness); x += sz+spacing;
draw_list->AddLine(ImVec2(x, y), ImVec2(x+sz, y ), col32, thickness); x += sz+spacing; draw_list->AddLine(ImVec2(x, y), ImVec2(x+sz, y ), col32, curr_thickness); x += sz+spacing; // Horizontal line (note: drawing a filled rectangle will be faster!)
draw_list->AddLine(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, thickness); x += sz+spacing; draw_list->AddLine(ImVec2(x, y), ImVec2(x, y+sz), col32, curr_thickness); x += spacing; // Vertical line (note: drawing a filled rectangle will be faster!)
draw_list->AddLine(ImVec2(x, y), ImVec2(x, y+sz), col32, thickness); x += spacing; draw_list->AddLine(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, curr_thickness); 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), col32, thickness); 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), col32, curr_thickness);
x = p.x + 4; x = p.x + 4;
y += sz+spacing; y += sz+spacing;
} }
@ -2655,6 +2657,9 @@ static void ShowExampleAppCustomRendering(bool* p_open)
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, 10.0f); x += sz+spacing; draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, 10.0f); x += sz+spacing;
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, 10.0f, ImDrawCornerFlags_TopLeft|ImDrawCornerFlags_BotRight); x += sz+spacing; draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x+sz, y+sz), col32, 10.0f, ImDrawCornerFlags_TopLeft|ImDrawCornerFlags_BotRight); x += sz+spacing;
draw_list->AddTriangleFilled(ImVec2(x+sz*0.5f, y), ImVec2(x+sz,y+sz-0.5f), ImVec2(x,y+sz-0.5f), col32); x += sz+spacing; draw_list->AddTriangleFilled(ImVec2(x+sz*0.5f, y), ImVec2(x+sz,y+sz-0.5f), ImVec2(x,y+sz-0.5f), col32); x += sz+spacing;
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x+sz, y+thickness), col32); x += sz+spacing; // Horizontal line (faster than AddLine, but only handle integer thickness)
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x+thickness, y+sz), col32); x += spacing+spacing; // Vertical line (faster than AddLine, but only handle integer thickness)
draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x+1, y+1), col32); 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)); 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)*8, (sz+spacing)*3)); ImGui::Dummy(ImVec2((sz+spacing)*8, (sz+spacing)*3));
} }