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Demo: Split the contents of ShowDemoWindow() into smaller functions as it appears to speed up link time with VS. (#2152)
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@ -69,6 +69,7 @@ Other Changes:
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- RenderText(): Some optimization for very large text buffers, useful for non-optimized builds.
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- BeginMenu(): Fixed menu popup horizontal offset being off the item in the menu bar when WindowPadding=0.0f.
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- ArrowButton(): Fixed arrow shape being horizontally misaligned by (FramePadding.y-FramePadding.x) if they are different.
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- Demo: Split the contents of ShowDemoWindow() into smaller functions as it appears to speed up link time with VS. (#2152)
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- Drag and Drop: Added GetDragDropPayload() to peek directly into the payload (if any) from anywhere. (#143)
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- ImGuiTextBuffer: Avoid heap allocation when empty.
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- ImDrawList: Fixed AddConvexPolyFilled() undefined behavior when passing points_count smaller than 3,
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@ -155,6 +155,13 @@ void ImGui::ShowUserGuide()
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// [SECTION] Demo Window / ShowDemoWindow()
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//-----------------------------------------------------------------------------
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// We split the contents of the big ShowDemoWindow() function into smaller functions (because the link time of very large functions grow non-linearly)
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static void ShowDemoWindowWidgets();
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static void ShowDemoWindowLayout();
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static void ShowDemoWindowPopups();
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static void ShowDemoWindowColumns();
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static void ShowDemoWindowMisc();
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// Demonstrate most Dear ImGui features (this is big function!)
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// You may execute this function to experiment with the UI and understand what it does. You may then search for keywords in the code when you are interested by a specific feature.
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void ImGui::ShowDemoWindow(bool* p_open)
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@ -212,7 +219,7 @@ void ImGui::ShowDemoWindow(bool* p_open)
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static bool no_nav = false;
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static bool no_background = false;
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static bool no_bring_to_front = false;
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ImGuiWindowFlags window_flags = 0;
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if (no_titlebar) window_flags |= ImGuiWindowFlags_NoTitleBar;
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if (no_scrollbar) window_flags |= ImGuiWindowFlags_NoScrollbar;
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@ -371,6 +378,19 @@ void ImGui::ShowDemoWindow(bool* p_open)
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ImGui::Checkbox("No bring to front", &no_bring_to_front);
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}
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// All demo contents
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ShowDemoWindowWidgets();
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ShowDemoWindowLayout();
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ShowDemoWindowPopups();
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ShowDemoWindowColumns();
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ShowDemoWindowMisc();
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// End of ShowDemoWindow()
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ImGui::End();
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}
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static void ShowDemoWindowWidgets()
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{
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if (ImGui::CollapsingHeader("Widgets"))
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{
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if (ImGui::TreeNode("Basic"))
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@ -601,13 +621,13 @@ void ImGui::ShowDemoWindow(bool* p_open)
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ImGui::Checkbox("Enable extra group", &closable_group);
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if (ImGui::CollapsingHeader("Header"))
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{
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ImGui::Text("IsItemHovered: %d", IsItemHovered());
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ImGui::Text("IsItemHovered: %d", ImGui::IsItemHovered());
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for (int i = 0; i < 5; i++)
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ImGui::Text("Some content %d", i);
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}
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if (ImGui::CollapsingHeader("Header with a close button", &closable_group))
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{
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ImGui::Text("IsItemHovered: %d", IsItemHovered());
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ImGui::Text("IsItemHovered: %d", ImGui::IsItemHovered());
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for (int i = 0; i < 5; i++)
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ImGui::Text("More content %d", i);
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}
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@ -1049,11 +1069,11 @@ void ImGui::ShowDemoWindow(bool* p_open)
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if (ImGui::BeginDragDropTarget())
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{
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if (const ImGuiPayload* payload = AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_3F))
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if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_3F))
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memcpy((float*)&saved_palette[n], payload->Data, sizeof(float) * 3);
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if (const ImGuiPayload* payload = AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_4F))
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if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_4F))
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memcpy((float*)&saved_palette[n], payload->Data, sizeof(float) * 4);
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EndDragDropTarget();
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ImGui::EndDragDropTarget();
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}
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ImGui::PopID();
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@ -1469,7 +1489,7 @@ void ImGui::ShowDemoWindow(bool* p_open)
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ImGui::Text("This is another child window for testing with the _ChildWindows flag.");
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ImGui::EndChild();
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if (embed_all_inside_a_child_window)
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EndChild();
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ImGui::EndChild();
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// Calling IsItemHovered() after begin returns the hovered status of the title bar.
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// This is useful in particular if you want to create a context menu (with BeginPopupContextItem) associated to the title bar of a window.
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@ -1493,7 +1513,10 @@ void ImGui::ShowDemoWindow(bool* p_open)
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ImGui::TreePop();
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}
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}
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}
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static void ShowDemoWindowLayout()
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{
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if (ImGui::CollapsingHeader("Layout"))
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{
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if (ImGui::TreeNode("Child regions"))
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@ -1529,7 +1552,7 @@ void ImGui::ShowDemoWindow(bool* p_open)
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// Child 2: rounded border
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{
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ImGui::PushStyleVar(ImGuiStyleVar_ChildRounding, 5.0f);
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ImGui::BeginChild("Child2", ImVec2(0,300), true, (disable_mouse_wheel ? ImGuiWindowFlags_NoScrollWithMouse : 0) | (disable_menu ? 0 : ImGuiWindowFlags_MenuBar));
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ImGui::BeginChild("Child2", ImVec2(0, 300), true, (disable_mouse_wheel ? ImGuiWindowFlags_NoScrollWithMouse : 0) | (disable_menu ? 0 : ImGuiWindowFlags_MenuBar));
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if (!disable_menu && ImGui::BeginMenuBar())
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{
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if (ImGui::BeginMenu("Menu"))
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@ -1623,21 +1646,21 @@ void ImGui::ShowDemoWindow(bool* p_open)
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ImGui::SameLine(300); ImGui::SmallButton("x=300");
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// Checkbox
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static bool c1=false,c2=false,c3=false,c4=false;
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static bool c1 = false, c2 = false, c3 = false, c4 = false;
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ImGui::Checkbox("My", &c1); ImGui::SameLine();
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ImGui::Checkbox("Tailor", &c2); ImGui::SameLine();
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ImGui::Checkbox("Is", &c3); ImGui::SameLine();
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ImGui::Checkbox("Rich", &c4);
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// Various
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static float f0=1.0f, f1=2.0f, f2=3.0f;
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static float f0 = 1.0f, f1 = 2.0f, f2 = 3.0f;
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ImGui::PushItemWidth(80);
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const char* items[] = { "AAAA", "BBBB", "CCCC", "DDDD" };
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static int item = -1;
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ImGui::Combo("Combo", &item, items, IM_ARRAYSIZE(items)); ImGui::SameLine();
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ImGui::SliderFloat("X", &f0, 0.0f,5.0f); ImGui::SameLine();
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ImGui::SliderFloat("Y", &f1, 0.0f,5.0f); ImGui::SameLine();
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ImGui::SliderFloat("Z", &f2, 0.0f,5.0f);
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ImGui::SliderFloat("X", &f0, 0.0f, 5.0f); ImGui::SameLine();
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ImGui::SliderFloat("Y", &f1, 0.0f, 5.0f); ImGui::SameLine();
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ImGui::SliderFloat("Z", &f2, 0.0f, 5.0f);
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ImGui::PopItemWidth();
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ImGui::PushItemWidth(80);
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@ -1654,7 +1677,7 @@ void ImGui::ShowDemoWindow(bool* p_open)
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ImGui::PopItemWidth();
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// Dummy
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ImVec2 button_sz(40,40);
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ImVec2 button_sz(40, 40);
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ImGui::Button("A", button_sz); ImGui::SameLine();
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ImGui::Dummy(button_sz); ImGui::SameLine();
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ImGui::Button("B", button_sz);
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@ -1703,9 +1726,9 @@ void ImGui::ShowDemoWindow(bool* p_open)
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const float values[5] = { 0.5f, 0.20f, 0.80f, 0.60f, 0.25f };
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ImGui::PlotHistogram("##values", values, IM_ARRAYSIZE(values), 0, NULL, 0.0f, 1.0f, size);
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ImGui::Button("ACTION", ImVec2((size.x - ImGui::GetStyle().ItemSpacing.x)*0.5f,size.y));
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ImGui::Button("ACTION", ImVec2((size.x - ImGui::GetStyle().ItemSpacing.x)*0.5f, size.y));
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ImGui::SameLine();
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ImGui::Button("REACTION", ImVec2((size.x - ImGui::GetStyle().ItemSpacing.x)*0.5f,size.y));
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ImGui::Button("REACTION", ImVec2((size.x - ImGui::GetStyle().ItemSpacing.x)*0.5f, size.y));
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ImGui::EndGroup();
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ImGui::SameLine();
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@ -1802,7 +1825,7 @@ void ImGui::ShowDemoWindow(bool* p_open)
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{
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if (track && line == track_line)
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{
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ImGui::TextColored(ImColor(255,255,0), "Line %d", line);
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ImGui::TextColored(ImVec4(1,1,0,1), "Line %d", line);
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ImGui::SetScrollHereY(i * 0.25f); // 0.0f:top, 0.5f:center, 1.0f:bottom
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}
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else
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@ -1826,7 +1849,7 @@ void ImGui::ShowDemoWindow(bool* p_open)
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ImGui::SliderInt("Lines", &lines, 1, 15);
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ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
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ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(2.0f, 1.0f));
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ImGui::BeginChild("scrolling", ImVec2(0, ImGui::GetFrameHeightWithSpacing()*7 + 30), true, ImGuiWindowFlags_HorizontalScrollbar);
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ImGui::BeginChild("scrolling", ImVec2(0, ImGui::GetFrameHeightWithSpacing() * 7 + 30), true, ImGuiWindowFlags_HorizontalScrollbar);
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for (int line = 0; line < lines; line++)
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{
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// Display random stuff (for the sake of this trivial demo we are using basic Button+SameLine. If you want to create your own time line for a real application you may be better off
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@ -1872,15 +1895,18 @@ void ImGui::ShowDemoWindow(bool* p_open)
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ImGui::DragFloat2("size", (float*)&size, 0.5f, 0.0f, 200.0f, "%.0f");
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ImGui::TextWrapped("(Click and drag)");
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ImVec2 pos = ImGui::GetCursorScreenPos();
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ImVec4 clip_rect(pos.x, pos.y, pos.x+size.x, pos.y+size.y);
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ImVec4 clip_rect(pos.x, pos.y, pos.x + size.x, pos.y + size.y);
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ImGui::InvisibleButton("##dummy", size);
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if (ImGui::IsItemActive() && ImGui::IsMouseDragging()) { offset.x += ImGui::GetIO().MouseDelta.x; offset.y += ImGui::GetIO().MouseDelta.y; }
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ImGui::GetWindowDrawList()->AddRectFilled(pos, ImVec2(pos.x+size.x,pos.y+size.y), IM_COL32(90,90,120,255));
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ImGui::GetWindowDrawList()->AddText(ImGui::GetFont(), ImGui::GetFontSize()*2.0f, ImVec2(pos.x+offset.x,pos.y+offset.y), IM_COL32(255,255,255,255), "Line 1 hello\nLine 2 clip me!", NULL, 0.0f, &clip_rect);
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ImGui::GetWindowDrawList()->AddRectFilled(pos, ImVec2(pos.x + size.x, pos.y + size.y), IM_COL32(90, 90, 120, 255));
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ImGui::GetWindowDrawList()->AddText(ImGui::GetFont(), ImGui::GetFontSize()*2.0f, ImVec2(pos.x + offset.x, pos.y + offset.y), IM_COL32(255, 255, 255, 255), "Line 1 hello\nLine 2 clip me!", NULL, 0.0f, &clip_rect);
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ImGui::TreePop();
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}
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}
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}
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static void ShowDemoWindowPopups()
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{
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if (ImGui::CollapsingHeader("Popups & Modal windows"))
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{
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// Popups are windows with a few special properties:
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@ -1889,7 +1915,7 @@ void ImGui::ShowDemoWindow(bool* p_open)
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// - Their visibility state (~bool) is held internally by imgui instead of being held by the programmer as we are used to with regular Begin() calls.
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// (*) One can use IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup) to bypass it and detect hovering even when normally blocked by a popup.
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// Those three properties are intimately connected. The library needs to hold their visibility state because it can close popups at any time.
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// Typical use for regular windows:
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// bool my_tool_is_active = false; if (ImGui::Button("Open")) my_tool_is_active = true; [...] if (my_tool_is_active) Begin("My Tool", &my_tool_is_active) { [...] } End();
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// Typical use for popups:
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@ -2026,14 +2052,14 @@ void ImGui::ShowDemoWindow(bool* p_open)
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//ImGui::Combo("Combo", &dummy_i, "Delete\0Delete harder\0");
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static bool dont_ask_me_next_time = false;
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ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0,0));
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ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0, 0));
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ImGui::Checkbox("Don't ask me next time", &dont_ask_me_next_time);
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ImGui::PopStyleVar();
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if (ImGui::Button("OK", ImVec2(120,0))) { ImGui::CloseCurrentPopup(); }
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if (ImGui::Button("OK", ImVec2(120, 0))) { ImGui::CloseCurrentPopup(); }
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ImGui::SetItemDefaultFocus();
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ImGui::SameLine();
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if (ImGui::Button("Cancel", ImVec2(120,0))) { ImGui::CloseCurrentPopup(); }
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if (ImGui::Button("Cancel", ImVec2(120, 0))) { ImGui::CloseCurrentPopup(); }
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ImGui::EndPopup();
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}
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@ -2084,7 +2110,10 @@ void ImGui::ShowDemoWindow(bool* p_open)
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ImGui::TreePop();
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}
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}
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}
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static void ShowDemoWindowColumns()
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{
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if (ImGui::CollapsingHeader("Columns"))
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{
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ImGui::PushID("Columns");
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@ -2151,7 +2180,7 @@ void ImGui::ShowDemoWindow(bool* p_open)
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ImGui::Text("An extra line here.");
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ImGui::NextColumn();
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ImGui::Text("Sailor");
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ImGui::Text("Sailor");
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ImGui::Button("Corniflower");
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static float bar = 1.0f;
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ImGui::InputFloat("blue", &bar, 0.05f, 0, "%.3f");
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@ -2264,7 +2293,10 @@ void ImGui::ShowDemoWindow(bool* p_open)
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}
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ImGui::PopID();
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}
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}
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static void ShowDemoWindowMisc()
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{
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if (ImGui::CollapsingHeader("Filtering"))
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{
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static ImGuiTextFilter filter;
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@ -2422,9 +2454,6 @@ void ImGui::ShowDemoWindow(bool* p_open)
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ImGui::TreePop();
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}
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}
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// End of ShowDemoWindow()
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ImGui::End();
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}
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//-----------------------------------------------------------------------------
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