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Added PushStyleColor(ImGuiCol idx, ImU32 col) overload. (Which _might_ cause an "ambiguous call" compilation error if you are using ImColor() with implicit cast. Cast to ImU32 or ImVec4 explicily to fix.)

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This commit is contained in:
omar 2017-08-20 15:28:12 +08:00
parent 3b11e73333
commit 91d841dd5f
3 changed files with 26 additions and 13 deletions
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12
imgui.cpp
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@ -204,6 +204,7 @@
Here is a change-log of API breaking changes, if you are using one of the functions listed, expect to have to fix some code.
Also read releases logs https://github.com/ocornut/imgui/releases for more details.
- 2016/08/20 (1.51) - added PushStyleColor(ImGuiCol idx, ImU32 col) overload, which _might_ cause an "ambiguous call" compilation error if you are using ImColor() with implicit cast. Cast to ImU32 or ImVec4 explicily to fix.
- 2017/08/15 (1.51) - marked the weird IMGUI_ONCE_UPON_A_FRAME helper macro as obsolete. prefer using the more explicit ImGuiOnceUponAFrame.
- 2017/08/15 (1.51) - changed parameter order for BeginPopupContextWindow(), note that most uses relied on default parameters completely.
- 2017/08/13 (1.51) - renamed ImGuiCol_Columns_*** to ImGuiCol_Separator_***
@ -4712,6 +4713,17 @@ void ImGui::PopTextWrapPos()
window->DC.TextWrapPos = window->DC.TextWrapPosStack.empty() ? -1.0f : window->DC.TextWrapPosStack.back();
}
// FIXME: This may incur a round-trip (if the end user got their data from a float4) but eventually we aim to store the in-flight colors as ImU32
void ImGui::PushStyleColor(ImGuiCol idx, ImU32 col)
{
ImGuiContext& g = *GImGui;
ImGuiColMod backup;
backup.Col = idx;
backup.BackupValue = g.Style.Colors[idx];
g.ColorModifiers.push_back(backup);
g.Style.Colors[idx] = ColorConvertU32ToFloat4(col);
}
void ImGui::PushStyleColor(ImGuiCol idx, const ImVec4& col)
{
ImGuiContext& g = *GImGui;

7
imgui.h
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@ -180,6 +180,7 @@ namespace ImGui
// Parameters stacks (shared)
IMGUI_API void PushFont(ImFont* font); // use NULL as a shortcut to push default font
IMGUI_API void PopFont();
IMGUI_API void PushStyleColor(ImGuiCol idx, ImU32 col);
IMGUI_API void PushStyleColor(ImGuiCol idx, const ImVec4& col);
IMGUI_API void PopStyleColor(int count = 1);
IMGUI_API void PushStyleVar(ImGuiStyleVar idx, float val);
@ -1095,8 +1096,8 @@ struct ImGuiSizeConstraintCallbackData
// ImColor() helper to implicity converts colors to either ImU32 (packed 4x1 byte) or ImVec4 (4x1 float)
// Prefer using IM_COL32() macros if you want a guaranteed compile-time ImU32 for usage with ImDrawList API.
// **Avoid storing ImColor! Store either u32 of ImVec4. This is not a full-featured color class.
// **None of the ImGui API are using ImColor directly but you can use it as a convenience to pass colors in either ImU32 or ImVec4 formats.
// **Avoid storing ImColor! Store either u32 of ImVec4. This is not a full-featured color class. MAY OBSOLETE.
// **None of the ImGui API are using ImColor directly but you can use it as a convenience to pass colors in either ImU32 or ImVec4 formats. Explicitly cast to ImU32 or ImVec4 if needed.
struct ImColor
{
ImVec4 Value;
@ -1109,8 +1110,8 @@ struct ImColor
inline operator ImU32() const { return ImGui::ColorConvertFloat4ToU32(Value); }
inline operator ImVec4() const { return Value; }
// FIXME-OBSOLETE: May need to obsolete/cleanup those helpers.
inline void SetHSV(float h, float s, float v, float a = 1.0f){ ImGui::ColorConvertHSVtoRGB(h, s, v, Value.x, Value.y, Value.z); Value.w = a; }
static ImColor HSV(float h, float s, float v, float a = 1.0f) { float r,g,b; ImGui::ColorConvertHSVtoRGB(h, s, v, r, g, b); return ImColor(r,g,b,a); }
};

20
imgui_demo.cpp
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@ -285,9 +285,9 @@ void ImGui::ShowTestWindow(bool* p_open)
{
if (i > 0) ImGui::SameLine();
ImGui::PushID(i);
ImGui::PushStyleColor(ImGuiCol_Button, ImColor::HSV(i/7.0f, 0.6f, 0.6f));
ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImColor::HSV(i/7.0f, 0.7f, 0.7f));
ImGui::PushStyleColor(ImGuiCol_ButtonActive, ImColor::HSV(i/7.0f, 0.8f, 0.8f));
ImGui::PushStyleColor(ImGuiCol_Button, (ImVec4)ImColor::HSV(i/7.0f, 0.6f, 0.6f));
ImGui::PushStyleColor(ImGuiCol_ButtonHovered, (ImVec4)ImColor::HSV(i/7.0f, 0.7f, 0.7f));
ImGui::PushStyleColor(ImGuiCol_ButtonActive, (ImVec4)ImColor::HSV(i/7.0f, 0.8f, 0.8f));
ImGui::Button("Click");
ImGui::PopStyleColor(3);
ImGui::PopID();
@ -913,10 +913,10 @@ void ImGui::ShowTestWindow(bool* p_open)
{
if (i > 0) ImGui::SameLine();
ImGui::PushID(i);
ImGui::PushStyleColor(ImGuiCol_FrameBg, ImColor::HSV(i/7.0f, 0.5f, 0.5f));
ImGui::PushStyleColor(ImGuiCol_FrameBgHovered, ImColor::HSV(i/7.0f, 0.6f, 0.5f));
ImGui::PushStyleColor(ImGuiCol_FrameBgActive, ImColor::HSV(i/7.0f, 0.7f, 0.5f));
ImGui::PushStyleColor(ImGuiCol_SliderGrab, ImColor::HSV(i/7.0f, 0.9f, 0.9f));
ImGui::PushStyleColor(ImGuiCol_FrameBg, (ImVec4)ImColor::HSV(i/7.0f, 0.5f, 0.5f));
ImGui::PushStyleColor(ImGuiCol_FrameBgHovered, (ImVec4)ImColor::HSV(i/7.0f, 0.6f, 0.5f));
ImGui::PushStyleColor(ImGuiCol_FrameBgActive, (ImVec4)ImColor::HSV(i/7.0f, 0.7f, 0.5f));
ImGui::PushStyleColor(ImGuiCol_SliderGrab, (ImVec4)ImColor::HSV(i/7.0f, 0.9f, 0.9f));
ImGui::VSliderFloat("##v", ImVec2(18,160), &values[i], 0.0f, 1.0f, "");
if (ImGui::IsItemActive() || ImGui::IsItemHovered())
ImGui::SetTooltip("%.3f", values[i]);
@ -1271,9 +1271,9 @@ void ImGui::ShowTestWindow(bool* p_open)
char num_buf[16];
const char* label = (!(n%15)) ? "FizzBuzz" : (!(n%3)) ? "Fizz" : (!(n%5)) ? "Buzz" : (sprintf(num_buf, "%d", n), num_buf);
float hue = n*0.05f;
ImGui::PushStyleColor(ImGuiCol_Button, ImColor::HSV(hue, 0.6f, 0.6f));
ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImColor::HSV(hue, 0.7f, 0.7f));
ImGui::PushStyleColor(ImGuiCol_ButtonActive, ImColor::HSV(hue, 0.8f, 0.8f));
ImGui::PushStyleColor(ImGuiCol_Button, (ImVec4)ImColor::HSV(hue, 0.6f, 0.6f));
ImGui::PushStyleColor(ImGuiCol_ButtonHovered, (ImVec4)ImColor::HSV(hue, 0.7f, 0.7f));
ImGui::PushStyleColor(ImGuiCol_ButtonActive, (ImVec4)ImColor::HSV(hue, 0.8f, 0.8f));
ImGui::Button(label, ImVec2(40.0f + sinf((float)(line + n)) * 20.0f, 0.0f));
ImGui::PopStyleColor(3);
ImGui::PopID();